83f215b035
When no profile is provided, but the new --empty-profile option is
specified, the export/report/show commands now emit coverage data
equivalent to that obtained from a profile with all zero counters
("baseline coverage").
This is useful for build systems (e.g. Bazel) that can track coverage
information for each build target, even those that are never linked into
tests and thus don't have runtime coverage data recorded. By merging in
baseline coverage, lines in files that aren't linked into tests are
correctly reported as uncovered.
Reland with fixes to `CoverageMappingTest.cpp`.
Reverts llvm/llvm-project#144121
1175 lines
45 KiB
C++
1175 lines
45 KiB
C++
//===- unittest/ProfileData/CoverageMappingTest.cpp -------------------------=//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ProfileData/Coverage/CoverageMapping.h"
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#include "llvm/ProfileData/Coverage/CoverageMappingReader.h"
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#include "llvm/ProfileData/Coverage/CoverageMappingWriter.h"
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#include "llvm/ProfileData/InstrProfReader.h"
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#include "llvm/ProfileData/InstrProfWriter.h"
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#include "llvm/Support/raw_ostream.h"
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#include "llvm/Testing/Support/Error.h"
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#include "llvm/Testing/Support/SupportHelpers.h"
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#include "gtest/gtest.h"
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#include <map>
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#include <ostream>
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#include <utility>
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using namespace llvm;
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using namespace coverage;
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[[nodiscard]] static ::testing::AssertionResult
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ErrorEquals(Error E, coveragemap_error Expected_Err,
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const std::string &Expected_Msg = std::string()) {
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coveragemap_error Found;
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std::string Msg;
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std::string FoundMsg;
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handleAllErrors(std::move(E), [&](const CoverageMapError &CME) {
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Found = CME.get();
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Msg = CME.getMessage();
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FoundMsg = CME.message();
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});
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if (Expected_Err == Found && Msg == Expected_Msg)
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return ::testing::AssertionSuccess();
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return ::testing::AssertionFailure() << "error: " << FoundMsg << "\n";
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}
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namespace llvm {
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namespace coverage {
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void PrintTo(const Counter &C, ::std::ostream *os) {
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if (C.isZero())
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*os << "Zero";
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else if (C.isExpression())
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*os << "Expression " << C.getExpressionID();
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else
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*os << "Counter " << C.getCounterID();
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}
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void PrintTo(const CoverageSegment &S, ::std::ostream *os) {
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*os << "CoverageSegment(" << S.Line << ", " << S.Col << ", ";
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if (S.HasCount)
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*os << S.Count << ", ";
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*os << (S.IsRegionEntry ? "true" : "false") << ")";
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}
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}
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}
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namespace {
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struct OutputFunctionCoverageData {
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StringRef Name;
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uint64_t Hash;
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std::vector<StringRef> Filenames;
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std::vector<CounterMappingRegion> Regions;
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std::vector<CounterExpression> Expressions;
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OutputFunctionCoverageData() : Hash(0) {}
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OutputFunctionCoverageData(OutputFunctionCoverageData &&OFCD)
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: Name(OFCD.Name), Hash(OFCD.Hash), Filenames(std::move(OFCD.Filenames)),
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Regions(std::move(OFCD.Regions)) {}
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OutputFunctionCoverageData(const OutputFunctionCoverageData &) = delete;
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OutputFunctionCoverageData &
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operator=(const OutputFunctionCoverageData &) = delete;
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OutputFunctionCoverageData &operator=(OutputFunctionCoverageData &&) = delete;
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void fillCoverageMappingRecord(CoverageMappingRecord &Record) const {
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Record.FunctionName = Name;
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Record.FunctionHash = Hash;
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Record.Filenames = Filenames;
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Record.Expressions = Expressions;
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Record.MappingRegions = Regions;
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}
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};
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struct CoverageMappingReaderMock : CoverageMappingReader {
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ArrayRef<OutputFunctionCoverageData> Functions;
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CoverageMappingReaderMock(ArrayRef<OutputFunctionCoverageData> Functions)
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: Functions(Functions) {}
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Error readNextRecord(CoverageMappingRecord &Record) override {
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if (Functions.empty())
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return make_error<CoverageMapError>(coveragemap_error::eof);
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Functions.front().fillCoverageMappingRecord(Record);
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Functions = Functions.slice(1);
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return Error::success();
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}
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};
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struct InputFunctionCoverageData {
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// Maps the global file index from CoverageMappingTest.Files
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// to the index of that file within this function. We can't just use
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// global file indexes here because local indexes have to be dense.
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// This map is used during serialization to create the virtual file mapping
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// (from local fileId to global Index) in the head of the per-function
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// coverage mapping data.
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SmallDenseMap<unsigned, unsigned> ReverseVirtualFileMapping;
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std::string Name;
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uint64_t Hash;
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std::vector<CounterMappingRegion> Regions;
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std::vector<CounterExpression> Expressions;
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InputFunctionCoverageData(std::string Name, uint64_t Hash)
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: Name(std::move(Name)), Hash(Hash) {}
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InputFunctionCoverageData(InputFunctionCoverageData &&IFCD)
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: ReverseVirtualFileMapping(std::move(IFCD.ReverseVirtualFileMapping)),
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Name(std::move(IFCD.Name)), Hash(IFCD.Hash),
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Regions(std::move(IFCD.Regions)) {}
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InputFunctionCoverageData(const InputFunctionCoverageData &) = delete;
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InputFunctionCoverageData &
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operator=(const InputFunctionCoverageData &) = delete;
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InputFunctionCoverageData &operator=(InputFunctionCoverageData &&) = delete;
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};
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struct CoverageMappingTest : ::testing::TestWithParam<std::tuple<bool, bool>> {
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bool UseMultipleReaders;
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StringMap<unsigned> Files;
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std::vector<std::string> Filenames;
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std::vector<InputFunctionCoverageData> InputFunctions;
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std::vector<OutputFunctionCoverageData> OutputFunctions;
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InstrProfWriter ProfileWriter;
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std::unique_ptr<IndexedInstrProfReader> ProfileReader;
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std::unique_ptr<CoverageMapping> LoadedCoverage;
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void SetUp() override {
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ProfileWriter.setOutputSparse(std::get<0>(GetParam()));
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UseMultipleReaders = std::get<1>(GetParam());
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}
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unsigned getGlobalFileIndex(StringRef Name) {
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auto R = Files.find(Name);
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if (R != Files.end())
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return R->second;
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unsigned Index = Files.size() + 1;
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Files.try_emplace(Name, Index);
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return Index;
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}
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// Return the file index of file 'Name' for the current function.
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// Add the file into the global map if necessary.
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// See also InputFunctionCoverageData::ReverseVirtualFileMapping
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// for additional comments.
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unsigned getFileIndexForFunction(StringRef Name) {
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unsigned GlobalIndex = getGlobalFileIndex(Name);
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auto &CurrentFunctionFileMapping =
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InputFunctions.back().ReverseVirtualFileMapping;
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auto R = CurrentFunctionFileMapping.find(GlobalIndex);
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if (R != CurrentFunctionFileMapping.end())
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return R->second;
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unsigned IndexInFunction = CurrentFunctionFileMapping.size();
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CurrentFunctionFileMapping.insert(
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std::make_pair(GlobalIndex, IndexInFunction));
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return IndexInFunction;
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}
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void startFunction(StringRef FuncName, uint64_t Hash) {
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InputFunctions.emplace_back(FuncName.str(), Hash);
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}
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void addCMR(Counter C, StringRef File, unsigned LS, unsigned CS, unsigned LE,
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unsigned CE, bool Skipped = false) {
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auto &Regions = InputFunctions.back().Regions;
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unsigned FileID = getFileIndexForFunction(File);
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Regions.push_back(
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Skipped ? CounterMappingRegion::makeSkipped(FileID, LS, CS, LE, CE)
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: CounterMappingRegion::makeRegion(C, FileID, LS, CS, LE, CE));
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}
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void addSkipped(StringRef File, unsigned LS, unsigned CS, unsigned LE,
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unsigned CE) {
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addCMR(Counter::getZero(), File, LS, CS, LE, CE, true);
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}
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void addMCDCDecisionCMR(unsigned Mask, uint16_t NC, StringRef File,
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unsigned LS, unsigned CS, unsigned LE, unsigned CE) {
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auto &Regions = InputFunctions.back().Regions;
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unsigned FileID = getFileIndexForFunction(File);
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Regions.push_back(CounterMappingRegion::makeDecisionRegion(
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mcdc::DecisionParameters{Mask, NC}, FileID, LS, CS, LE, CE));
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}
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void addMCDCBranchCMR(Counter C1, Counter C2, mcdc::ConditionID ID,
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mcdc::ConditionIDs Conds, StringRef File, unsigned LS,
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unsigned CS, unsigned LE, unsigned CE) {
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auto &Regions = InputFunctions.back().Regions;
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unsigned FileID = getFileIndexForFunction(File);
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Regions.push_back(CounterMappingRegion::makeBranchRegion(
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C1, C2, FileID, LS, CS, LE, CE, mcdc::BranchParameters{ID, Conds}));
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}
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void addExpansionCMR(StringRef File, StringRef ExpandedFile, unsigned LS,
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unsigned CS, unsigned LE, unsigned CE) {
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InputFunctions.back().Regions.push_back(CounterMappingRegion::makeExpansion(
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getFileIndexForFunction(File), getFileIndexForFunction(ExpandedFile),
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LS, CS, LE, CE));
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}
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void addExpression(CounterExpression CE) {
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InputFunctions.back().Expressions.push_back(CE);
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}
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std::string writeCoverageRegions(InputFunctionCoverageData &Data) {
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SmallVector<unsigned, 8> FileIDs(Data.ReverseVirtualFileMapping.size());
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for (const auto &E : Data.ReverseVirtualFileMapping)
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FileIDs[E.second] = E.first;
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std::string Coverage;
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llvm::raw_string_ostream OS(Coverage);
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CoverageMappingWriter(FileIDs, Data.Expressions, Data.Regions).write(OS);
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return OS.str();
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}
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void readCoverageRegions(const std::string &Coverage,
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OutputFunctionCoverageData &Data) {
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// We will re-use the StringRef in duplicate tests, clear it to avoid
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// clobber previous ones.
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Filenames.clear();
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Filenames.resize(Files.size() + 1);
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for (const auto &E : Files)
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Filenames[E.getValue()] = E.getKey().str();
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ArrayRef<std::string> FilenameRefs = llvm::ArrayRef(Filenames);
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RawCoverageMappingReader Reader(Coverage, FilenameRefs, Data.Filenames,
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Data.Expressions, Data.Regions);
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EXPECT_THAT_ERROR(Reader.read(), Succeeded());
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}
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void writeAndReadCoverageRegions(bool EmitFilenames = true) {
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OutputFunctions.resize(InputFunctions.size());
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for (unsigned I = 0; I < InputFunctions.size(); ++I) {
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std::string Regions = writeCoverageRegions(InputFunctions[I]);
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readCoverageRegions(Regions, OutputFunctions[I]);
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OutputFunctions[I].Name = InputFunctions[I].Name;
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OutputFunctions[I].Hash = InputFunctions[I].Hash;
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if (!EmitFilenames)
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OutputFunctions[I].Filenames.clear();
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}
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}
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void readProfCounts() {
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auto Profile = ProfileWriter.writeBuffer();
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auto ReaderOrErr = IndexedInstrProfReader::create(std::move(Profile));
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EXPECT_THAT_ERROR(ReaderOrErr.takeError(), Succeeded());
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ProfileReader = std::move(ReaderOrErr.get());
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}
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Expected<std::unique_ptr<CoverageMapping>> readOutputFunctions() {
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std::vector<std::unique_ptr<CoverageMappingReader>> CoverageReaders;
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if (UseMultipleReaders) {
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for (const auto &OF : OutputFunctions) {
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ArrayRef<OutputFunctionCoverageData> Funcs(OF);
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CoverageReaders.push_back(
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std::make_unique<CoverageMappingReaderMock>(Funcs));
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}
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} else {
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ArrayRef<OutputFunctionCoverageData> Funcs(OutputFunctions);
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CoverageReaders.push_back(
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std::make_unique<CoverageMappingReaderMock>(Funcs));
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}
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auto ProfileReaderRef = std::make_optional(
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std::reference_wrapper<IndexedInstrProfReader>(*ProfileReader));
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return CoverageMapping::load(CoverageReaders, ProfileReaderRef);
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}
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Error loadCoverageMapping(bool EmitFilenames = true) {
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readProfCounts();
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writeAndReadCoverageRegions(EmitFilenames);
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auto CoverageOrErr = readOutputFunctions();
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if (!CoverageOrErr)
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return CoverageOrErr.takeError();
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LoadedCoverage = std::move(CoverageOrErr.get());
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return Error::success();
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}
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};
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TEST(CoverageMappingTest, expression_subst) {
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CounterExpressionBuilder Builder;
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CounterExpressionBuilder::SubstMap MapToExpand;
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auto C = [](unsigned ID) { return Counter::getCounter(ID); };
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auto A = [&](Counter LHS, Counter RHS) { return Builder.add(LHS, RHS); };
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// returns {E, N} in clangCodeGen
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auto getBranchCounterPair = [&](Counter E, Counter P, Counter N) {
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auto Skipped = Builder.subtract(P, E);
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MapToExpand[N] = Builder.subst(Skipped, MapToExpand);
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};
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auto E18 = C(5);
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auto P18 = C(2);
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auto S18 = C(18);
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// #18 => (#2 - #5)
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getBranchCounterPair(E18, P18, S18);
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auto E22 = S18;
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auto P22 = C(0);
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auto S22 = C(22);
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// #22 => #0 - (#2 - #5)
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getBranchCounterPair(E22, P22, S22);
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auto E28 = A(A(C(9), C(11)), C(14));
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auto P28 = S22;
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auto S28 = C(28);
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// #28 => (((((#0 + #5) - #2) - #9) - #11) - #14)
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getBranchCounterPair(E28, P28, S28);
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auto LHS = A(E28, A(S28, S18));
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auto RHS = C(0);
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// W/o subst, LHS cannot be reduced.
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ASSERT_FALSE(Builder.subtract(LHS, RHS).isZero());
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// W/ subst, C(18) and C(28) in LHS will be reduced.
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ASSERT_TRUE(Builder.subst(Builder.subtract(LHS, RHS), MapToExpand).isZero());
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}
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TEST_P(CoverageMappingTest, basic_write_read) {
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startFunction("func", 0x1234);
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addCMR(Counter::getCounter(0), "foo", 1, 1, 1, 1);
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addCMR(Counter::getCounter(1), "foo", 2, 1, 2, 2);
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addCMR(Counter::getZero(), "foo", 3, 1, 3, 4);
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addCMR(Counter::getCounter(2), "foo", 4, 1, 4, 8);
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addCMR(Counter::getCounter(3), "bar", 1, 2, 3, 4);
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writeAndReadCoverageRegions();
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ASSERT_EQ(1u, InputFunctions.size());
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ASSERT_EQ(1u, OutputFunctions.size());
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InputFunctionCoverageData &Input = InputFunctions.back();
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OutputFunctionCoverageData &Output = OutputFunctions.back();
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size_t N = ArrayRef(Input.Regions).size();
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ASSERT_EQ(N, Output.Regions.size());
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for (size_t I = 0; I < N; ++I) {
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ASSERT_EQ(Input.Regions[I].Count, Output.Regions[I].Count);
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ASSERT_EQ(Input.Regions[I].FileID, Output.Regions[I].FileID);
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ASSERT_EQ(Input.Regions[I].startLoc(), Output.Regions[I].startLoc());
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ASSERT_EQ(Input.Regions[I].endLoc(), Output.Regions[I].endLoc());
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ASSERT_EQ(Input.Regions[I].Kind, Output.Regions[I].Kind);
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}
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}
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TEST_P(CoverageMappingTest, correct_deserialize_for_more_than_two_files) {
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const char *FileNames[] = {"bar", "baz", "foo"};
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static const unsigned N = std::size(FileNames);
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startFunction("func", 0x1234);
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for (unsigned I = 0; I < N; ++I)
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// Use LineStart to hold the index of the file name
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// in order to preserve that information during possible sorting of CMRs.
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addCMR(Counter::getCounter(0), FileNames[I], I, 1, I, 1);
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writeAndReadCoverageRegions();
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ASSERT_EQ(1u, OutputFunctions.size());
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OutputFunctionCoverageData &Output = OutputFunctions.back();
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ASSERT_EQ(N, Output.Regions.size());
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ASSERT_EQ(N, Output.Filenames.size());
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for (unsigned I = 0; I < N; ++I) {
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ASSERT_GT(N, Output.Regions[I].FileID);
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ASSERT_GT(N, Output.Regions[I].LineStart);
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EXPECT_EQ(FileNames[Output.Regions[I].LineStart],
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Output.Filenames[Output.Regions[I].FileID]);
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}
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}
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static const auto Err = [](Error E) { FAIL(); };
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TEST_P(CoverageMappingTest, load_coverage_for_more_than_two_files) {
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ProfileWriter.addRecord({"func", 0x1234, {0}}, Err);
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const char *FileNames[] = {"bar", "baz", "foo"};
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static const unsigned N = std::size(FileNames);
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startFunction("func", 0x1234);
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for (unsigned I = 0; I < N; ++I)
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// Use LineStart to hold the index of the file name
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// in order to preserve that information during possible sorting of CMRs.
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addCMR(Counter::getCounter(0), FileNames[I], I, 1, I, 1);
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EXPECT_THAT_ERROR(loadCoverageMapping(), Succeeded());
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for (unsigned I = 0; I < N; ++I) {
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CoverageData Data = LoadedCoverage->getCoverageForFile(FileNames[I]);
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ASSERT_TRUE(!Data.empty());
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EXPECT_EQ(I, Data.begin()->Line);
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}
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}
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TEST_P(CoverageMappingTest, load_coverage_with_bogus_function_name) {
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ProfileWriter.addRecord({"", 0x1234, {10}}, Err);
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startFunction("", 0x1234);
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addCMR(Counter::getCounter(0), "foo", 1, 1, 5, 5);
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EXPECT_TRUE(ErrorEquals(loadCoverageMapping(), coveragemap_error::malformed,
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"record function name is empty"));
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}
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TEST_P(CoverageMappingTest, load_coverage_for_several_functions) {
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ProfileWriter.addRecord({"func1", 0x1234, {10}}, Err);
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ProfileWriter.addRecord({"func2", 0x2345, {20}}, Err);
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startFunction("func1", 0x1234);
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addCMR(Counter::getCounter(0), "foo", 1, 1, 5, 5);
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startFunction("func2", 0x2345);
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addCMR(Counter::getCounter(0), "bar", 2, 2, 6, 6);
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EXPECT_THAT_ERROR(loadCoverageMapping(), Succeeded());
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const auto FunctionRecords = LoadedCoverage->getCoveredFunctions();
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EXPECT_EQ(2, std::distance(FunctionRecords.begin(), FunctionRecords.end()));
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for (const auto &FunctionRecord : FunctionRecords) {
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CoverageData Data = LoadedCoverage->getCoverageForFunction(FunctionRecord);
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std::vector<CoverageSegment> Segments(Data.begin(), Data.end());
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ASSERT_EQ(2U, Segments.size());
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if (FunctionRecord.Name == "func1") {
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EXPECT_EQ(CoverageSegment(1, 1, 10, true), Segments[0]);
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EXPECT_EQ(CoverageSegment(5, 5, false), Segments[1]);
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} else {
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ASSERT_EQ("func2", FunctionRecord.Name);
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EXPECT_EQ(CoverageSegment(2, 2, 20, true), Segments[0]);
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EXPECT_EQ(CoverageSegment(6, 6, false), Segments[1]);
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}
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}
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}
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TEST_P(CoverageMappingTest, create_combined_regions) {
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ProfileWriter.addRecord({"func1", 0x1234, {1, 2, 3}}, Err);
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startFunction("func1", 0x1234);
|
|
|
|
// Given regions which start at the same location, emit a segment for the
|
|
// last region.
|
|
addCMR(Counter::getCounter(0), "file1", 1, 1, 2, 2);
|
|
addCMR(Counter::getCounter(1), "file1", 1, 1, 2, 2);
|
|
addCMR(Counter::getCounter(2), "file1", 1, 1, 2, 2);
|
|
|
|
EXPECT_THAT_ERROR(loadCoverageMapping(), Succeeded());
|
|
const auto FunctionRecords = LoadedCoverage->getCoveredFunctions();
|
|
const auto &FunctionRecord = *FunctionRecords.begin();
|
|
CoverageData Data = LoadedCoverage->getCoverageForFunction(FunctionRecord);
|
|
std::vector<CoverageSegment> Segments(Data.begin(), Data.end());
|
|
|
|
ASSERT_EQ(2U, Segments.size());
|
|
EXPECT_EQ(CoverageSegment(1, 1, 6, true), Segments[0]);
|
|
EXPECT_EQ(CoverageSegment(2, 2, false), Segments[1]);
|
|
}
|
|
|
|
TEST_P(CoverageMappingTest, skipped_segments_have_no_count) {
|
|
ProfileWriter.addRecord({"func1", 0x1234, {1}}, Err);
|
|
startFunction("func1", 0x1234);
|
|
|
|
addCMR(Counter::getCounter(0), "file1", 1, 1, 5, 5);
|
|
addCMR(Counter::getCounter(0), "file1", 5, 1, 5, 5, /*Skipped=*/true);
|
|
|
|
EXPECT_THAT_ERROR(loadCoverageMapping(), Succeeded());
|
|
const auto FunctionRecords = LoadedCoverage->getCoveredFunctions();
|
|
const auto &FunctionRecord = *FunctionRecords.begin();
|
|
CoverageData Data = LoadedCoverage->getCoverageForFunction(FunctionRecord);
|
|
std::vector<CoverageSegment> Segments(Data.begin(), Data.end());
|
|
|
|
ASSERT_EQ(3U, Segments.size());
|
|
EXPECT_EQ(CoverageSegment(1, 1, 1, true), Segments[0]);
|
|
EXPECT_EQ(CoverageSegment(5, 1, true), Segments[1]);
|
|
EXPECT_EQ(CoverageSegment(5, 5, false), Segments[2]);
|
|
}
|
|
|
|
TEST_P(CoverageMappingTest, multiple_regions_end_after_parent_ends) {
|
|
ProfileWriter.addRecord({"func1", 0x1234, {1, 0}}, Err);
|
|
startFunction("func1", 0x1234);
|
|
|
|
// 1| F{ a{
|
|
// 2|
|
|
// 3| a} b{ c{
|
|
// 4|
|
|
// 5| b}
|
|
// 6|
|
|
// 7| c} d{ e{
|
|
// 8|
|
|
// 9| d} e} F}
|
|
addCMR(Counter::getCounter(0), "file1", 1, 1, 9, 9); // < F
|
|
addCMR(Counter::getCounter(0), "file1", 1, 1, 3, 5); // < a
|
|
addCMR(Counter::getCounter(0), "file1", 3, 5, 5, 4); // < b
|
|
addCMR(Counter::getCounter(1), "file1", 3, 5, 7, 3); // < c
|
|
addCMR(Counter::getCounter(1), "file1", 7, 3, 9, 2); // < d
|
|
addCMR(Counter::getCounter(1), "file1", 7, 7, 9, 7); // < e
|
|
|
|
EXPECT_THAT_ERROR(loadCoverageMapping(), Succeeded());
|
|
const auto FunctionRecords = LoadedCoverage->getCoveredFunctions();
|
|
const auto &FunctionRecord = *FunctionRecords.begin();
|
|
CoverageData Data = LoadedCoverage->getCoverageForFunction(FunctionRecord);
|
|
std::vector<CoverageSegment> Segments(Data.begin(), Data.end());
|
|
|
|
// Old output (not sorted or unique):
|
|
// Segment at 1:1 with count 1
|
|
// Segment at 1:1 with count 1
|
|
// Segment at 3:5 with count 1
|
|
// Segment at 3:5 with count 0
|
|
// Segment at 3:5 with count 1
|
|
// Segment at 5:4 with count 0
|
|
// Segment at 7:3 with count 1
|
|
// Segment at 7:3 with count 0
|
|
// Segment at 7:7 with count 0
|
|
// Segment at 9:7 with count 0
|
|
// Segment at 9:2 with count 1
|
|
// Top level segment at 9:9
|
|
|
|
// New output (sorted and unique):
|
|
// Segment at 1:1 (count = 1), RegionEntry
|
|
// Segment at 3:5 (count = 1), RegionEntry
|
|
// Segment at 5:4 (count = 0)
|
|
// Segment at 7:3 (count = 0), RegionEntry
|
|
// Segment at 7:7 (count = 0), RegionEntry
|
|
// Segment at 9:2 (count = 0)
|
|
// Segment at 9:7 (count = 1)
|
|
// Segment at 9:9 (count = 0), Skipped
|
|
|
|
ASSERT_EQ(8U, Segments.size());
|
|
EXPECT_EQ(CoverageSegment(1, 1, 1, true), Segments[0]);
|
|
EXPECT_EQ(CoverageSegment(3, 5, 1, true), Segments[1]);
|
|
EXPECT_EQ(CoverageSegment(5, 4, 0, false), Segments[2]);
|
|
EXPECT_EQ(CoverageSegment(7, 3, 0, true), Segments[3]);
|
|
EXPECT_EQ(CoverageSegment(7, 7, 0, true), Segments[4]);
|
|
EXPECT_EQ(CoverageSegment(9, 2, 0, false), Segments[5]);
|
|
EXPECT_EQ(CoverageSegment(9, 7, 1, false), Segments[6]);
|
|
EXPECT_EQ(CoverageSegment(9, 9, false), Segments[7]);
|
|
}
|
|
|
|
TEST_P(CoverageMappingTest, multiple_completed_segments_at_same_loc) {
|
|
ProfileWriter.addRecord({"func1", 0x1234, {0, 1, 2}}, Err);
|
|
startFunction("func1", 0x1234);
|
|
|
|
// PR35495
|
|
addCMR(Counter::getCounter(1), "file1", 2, 1, 18, 2);
|
|
addCMR(Counter::getCounter(0), "file1", 8, 10, 14, 6);
|
|
addCMR(Counter::getCounter(0), "file1", 8, 12, 14, 6);
|
|
addCMR(Counter::getCounter(1), "file1", 9, 1, 14, 6);
|
|
addCMR(Counter::getCounter(2), "file1", 11, 13, 11, 14);
|
|
|
|
EXPECT_THAT_ERROR(loadCoverageMapping(), Succeeded());
|
|
const auto FunctionRecords = LoadedCoverage->getCoveredFunctions();
|
|
const auto &FunctionRecord = *FunctionRecords.begin();
|
|
CoverageData Data = LoadedCoverage->getCoverageForFunction(FunctionRecord);
|
|
std::vector<CoverageSegment> Segments(Data.begin(), Data.end());
|
|
|
|
ASSERT_EQ(7U, Segments.size());
|
|
EXPECT_EQ(CoverageSegment(2, 1, 1, true), Segments[0]);
|
|
EXPECT_EQ(CoverageSegment(8, 10, 0, true), Segments[1]);
|
|
EXPECT_EQ(CoverageSegment(8, 12, 0, true), Segments[2]);
|
|
EXPECT_EQ(CoverageSegment(9, 1, 1, true), Segments[3]);
|
|
EXPECT_EQ(CoverageSegment(11, 13, 2, true), Segments[4]);
|
|
// Use count=1 (from 9:1 -> 14:6), not count=0 (from 8:12 -> 14:6).
|
|
EXPECT_EQ(CoverageSegment(11, 14, 1, false), Segments[5]);
|
|
EXPECT_EQ(CoverageSegment(18, 2, false), Segments[6]);
|
|
}
|
|
|
|
TEST_P(CoverageMappingTest, dont_emit_redundant_segments) {
|
|
ProfileWriter.addRecord({"func1", 0x1234, {1, 1}}, Err);
|
|
startFunction("func1", 0x1234);
|
|
|
|
addCMR(Counter::getCounter(0), "file1", 1, 1, 4, 4);
|
|
addCMR(Counter::getCounter(1), "file1", 2, 2, 5, 5);
|
|
addCMR(Counter::getCounter(0), "file1", 3, 3, 6, 6);
|
|
|
|
EXPECT_THAT_ERROR(loadCoverageMapping(), Succeeded());
|
|
const auto FunctionRecords = LoadedCoverage->getCoveredFunctions();
|
|
const auto &FunctionRecord = *FunctionRecords.begin();
|
|
CoverageData Data = LoadedCoverage->getCoverageForFunction(FunctionRecord);
|
|
std::vector<CoverageSegment> Segments(Data.begin(), Data.end());
|
|
|
|
ASSERT_EQ(5U, Segments.size());
|
|
EXPECT_EQ(CoverageSegment(1, 1, 1, true), Segments[0]);
|
|
EXPECT_EQ(CoverageSegment(2, 2, 1, true), Segments[1]);
|
|
EXPECT_EQ(CoverageSegment(3, 3, 1, true), Segments[2]);
|
|
EXPECT_EQ(CoverageSegment(4, 4, 1, false), Segments[3]);
|
|
// A closing segment starting at 5:5 would be redundant: it would have the
|
|
// same count as the segment starting at 4:4, and has all the same metadata.
|
|
EXPECT_EQ(CoverageSegment(6, 6, false), Segments[4]);
|
|
}
|
|
|
|
TEST_P(CoverageMappingTest, dont_emit_closing_segment_at_new_region_start) {
|
|
ProfileWriter.addRecord({"func1", 0x1234, {1}}, Err);
|
|
startFunction("func1", 0x1234);
|
|
|
|
addCMR(Counter::getCounter(0), "file1", 1, 1, 6, 5);
|
|
addCMR(Counter::getCounter(0), "file1", 2, 2, 6, 5);
|
|
addCMR(Counter::getCounter(0), "file1", 3, 3, 6, 5);
|
|
addCMR(Counter::getCounter(0), "file1", 6, 5, 7, 7);
|
|
|
|
EXPECT_THAT_ERROR(loadCoverageMapping(), Succeeded());
|
|
const auto FunctionRecords = LoadedCoverage->getCoveredFunctions();
|
|
const auto &FunctionRecord = *FunctionRecords.begin();
|
|
CoverageData Data = LoadedCoverage->getCoverageForFunction(FunctionRecord);
|
|
std::vector<CoverageSegment> Segments(Data.begin(), Data.end());
|
|
|
|
ASSERT_EQ(5U, Segments.size());
|
|
EXPECT_EQ(CoverageSegment(1, 1, 1, true), Segments[0]);
|
|
EXPECT_EQ(CoverageSegment(2, 2, 1, true), Segments[1]);
|
|
EXPECT_EQ(CoverageSegment(3, 3, 1, true), Segments[2]);
|
|
EXPECT_EQ(CoverageSegment(6, 5, 1, true), Segments[3]);
|
|
// The old segment builder would get this wrong by emitting multiple segments
|
|
// which start at 6:5 (a few of which were skipped segments). We should just
|
|
// get a segment for the region entry.
|
|
EXPECT_EQ(CoverageSegment(7, 7, false), Segments[4]);
|
|
}
|
|
|
|
TEST_P(CoverageMappingTest, handle_consecutive_regions_with_zero_length) {
|
|
ProfileWriter.addRecord({"func1", 0x1234, {1, 2}}, Err);
|
|
startFunction("func1", 0x1234);
|
|
|
|
addCMR(Counter::getCounter(0), "file1", 1, 1, 1, 1);
|
|
addCMR(Counter::getCounter(1), "file1", 1, 1, 1, 1);
|
|
addCMR(Counter::getCounter(0), "file1", 1, 1, 1, 1);
|
|
addCMR(Counter::getCounter(1), "file1", 1, 1, 1, 1);
|
|
addCMR(Counter::getCounter(0), "file1", 1, 1, 1, 1);
|
|
|
|
EXPECT_THAT_ERROR(loadCoverageMapping(), Succeeded());
|
|
const auto FunctionRecords = LoadedCoverage->getCoveredFunctions();
|
|
const auto &FunctionRecord = *FunctionRecords.begin();
|
|
CoverageData Data = LoadedCoverage->getCoverageForFunction(FunctionRecord);
|
|
std::vector<CoverageSegment> Segments(Data.begin(), Data.end());
|
|
|
|
ASSERT_EQ(1U, Segments.size());
|
|
EXPECT_EQ(CoverageSegment(1, 1, true), Segments[0]);
|
|
// We need to get a skipped segment starting at 1:1. In this case there is
|
|
// also a region entry at 1:1.
|
|
}
|
|
|
|
TEST_P(CoverageMappingTest, handle_sandwiched_zero_length_region) {
|
|
ProfileWriter.addRecord({"func1", 0x1234, {2, 1}}, Err);
|
|
startFunction("func1", 0x1234);
|
|
|
|
addCMR(Counter::getCounter(0), "file1", 1, 5, 4, 4);
|
|
addCMR(Counter::getCounter(1), "file1", 1, 9, 1, 50);
|
|
addCMR(Counter::getCounter(1), "file1", 2, 7, 2, 34);
|
|
addCMR(Counter::getCounter(1), "file1", 3, 5, 3, 21);
|
|
addCMR(Counter::getCounter(1), "file1", 3, 21, 3, 21);
|
|
addCMR(Counter::getCounter(1), "file1", 4, 12, 4, 17);
|
|
|
|
EXPECT_THAT_ERROR(loadCoverageMapping(), Succeeded());
|
|
const auto FunctionRecords = LoadedCoverage->getCoveredFunctions();
|
|
const auto &FunctionRecord = *FunctionRecords.begin();
|
|
CoverageData Data = LoadedCoverage->getCoverageForFunction(FunctionRecord);
|
|
std::vector<CoverageSegment> Segments(Data.begin(), Data.end());
|
|
|
|
ASSERT_EQ(10U, Segments.size());
|
|
EXPECT_EQ(CoverageSegment(1, 5, 2, true), Segments[0]);
|
|
EXPECT_EQ(CoverageSegment(1, 9, 1, true), Segments[1]);
|
|
EXPECT_EQ(CoverageSegment(1, 50, 2, false), Segments[2]);
|
|
EXPECT_EQ(CoverageSegment(2, 7, 1, true), Segments[3]);
|
|
EXPECT_EQ(CoverageSegment(2, 34, 2, false), Segments[4]);
|
|
EXPECT_EQ(CoverageSegment(3, 5, 1, true), Segments[5]);
|
|
EXPECT_EQ(CoverageSegment(3, 21, 2, true), Segments[6]);
|
|
// Handle the zero-length region by creating a segment with its predecessor's
|
|
// count (i.e the count from 1:5 -> 4:4).
|
|
EXPECT_EQ(CoverageSegment(4, 4, false), Segments[7]);
|
|
// The area between 4:4 and 4:12 is skipped.
|
|
EXPECT_EQ(CoverageSegment(4, 12, 1, true), Segments[8]);
|
|
EXPECT_EQ(CoverageSegment(4, 17, false), Segments[9]);
|
|
}
|
|
|
|
TEST_P(CoverageMappingTest, handle_last_completed_region) {
|
|
ProfileWriter.addRecord({"func1", 0x1234, {1, 2, 3, 4}}, Err);
|
|
startFunction("func1", 0x1234);
|
|
|
|
addCMR(Counter::getCounter(0), "file1", 1, 1, 8, 8);
|
|
addCMR(Counter::getCounter(1), "file1", 2, 2, 5, 5);
|
|
addCMR(Counter::getCounter(2), "file1", 3, 3, 4, 4);
|
|
addCMR(Counter::getCounter(3), "file1", 6, 6, 7, 7);
|
|
|
|
EXPECT_THAT_ERROR(loadCoverageMapping(), Succeeded());
|
|
const auto FunctionRecords = LoadedCoverage->getCoveredFunctions();
|
|
const auto &FunctionRecord = *FunctionRecords.begin();
|
|
CoverageData Data = LoadedCoverage->getCoverageForFunction(FunctionRecord);
|
|
std::vector<CoverageSegment> Segments(Data.begin(), Data.end());
|
|
|
|
ASSERT_EQ(8U, Segments.size());
|
|
EXPECT_EQ(CoverageSegment(1, 1, 1, true), Segments[0]);
|
|
EXPECT_EQ(CoverageSegment(2, 2, 2, true), Segments[1]);
|
|
EXPECT_EQ(CoverageSegment(3, 3, 3, true), Segments[2]);
|
|
EXPECT_EQ(CoverageSegment(4, 4, 2, false), Segments[3]);
|
|
EXPECT_EQ(CoverageSegment(5, 5, 1, false), Segments[4]);
|
|
EXPECT_EQ(CoverageSegment(6, 6, 4, true), Segments[5]);
|
|
EXPECT_EQ(CoverageSegment(7, 7, 1, false), Segments[6]);
|
|
EXPECT_EQ(CoverageSegment(8, 8, false), Segments[7]);
|
|
}
|
|
|
|
TEST_P(CoverageMappingTest, expansion_gets_first_counter) {
|
|
startFunction("func", 0x1234);
|
|
addCMR(Counter::getCounter(1), "foo", 10, 1, 10, 2);
|
|
// This starts earlier in "foo", so the expansion should get its counter.
|
|
addCMR(Counter::getCounter(2), "foo", 1, 1, 20, 1);
|
|
addExpansionCMR("bar", "foo", 3, 3, 3, 3);
|
|
|
|
writeAndReadCoverageRegions();
|
|
ASSERT_EQ(1u, OutputFunctions.size());
|
|
OutputFunctionCoverageData &Output = OutputFunctions.back();
|
|
|
|
ASSERT_EQ(CounterMappingRegion::ExpansionRegion, Output.Regions[2].Kind);
|
|
ASSERT_EQ(Counter::getCounter(2), Output.Regions[2].Count);
|
|
ASSERT_EQ(3U, Output.Regions[2].LineStart);
|
|
}
|
|
|
|
TEST_P(CoverageMappingTest, basic_coverage_iteration) {
|
|
ProfileWriter.addRecord({"func", 0x1234, {30, 20, 10, 0}}, Err);
|
|
|
|
startFunction("func", 0x1234);
|
|
addCMR(Counter::getCounter(0), "file1", 1, 1, 9, 9);
|
|
addCMR(Counter::getCounter(1), "file1", 1, 1, 4, 7);
|
|
addCMR(Counter::getCounter(2), "file1", 5, 8, 9, 1);
|
|
addCMR(Counter::getCounter(3), "file1", 10, 10, 11, 11);
|
|
EXPECT_THAT_ERROR(loadCoverageMapping(), Succeeded());
|
|
|
|
CoverageData Data = LoadedCoverage->getCoverageForFile("file1");
|
|
std::vector<CoverageSegment> Segments(Data.begin(), Data.end());
|
|
ASSERT_EQ(7U, Segments.size());
|
|
ASSERT_EQ(CoverageSegment(1, 1, 20, true), Segments[0]);
|
|
ASSERT_EQ(CoverageSegment(4, 7, 30, false), Segments[1]);
|
|
ASSERT_EQ(CoverageSegment(5, 8, 10, true), Segments[2]);
|
|
ASSERT_EQ(CoverageSegment(9, 1, 30, false), Segments[3]);
|
|
ASSERT_EQ(CoverageSegment(9, 9, false), Segments[4]);
|
|
ASSERT_EQ(CoverageSegment(10, 10, 0, true), Segments[5]);
|
|
ASSERT_EQ(CoverageSegment(11, 11, false), Segments[6]);
|
|
}
|
|
|
|
TEST_P(CoverageMappingTest, test_line_coverage_iterator) {
|
|
ProfileWriter.addRecord({"func", 0x1234, {30, 20, 10, 0}}, Err);
|
|
|
|
startFunction("func", 0x1234);
|
|
addCMR(Counter::getCounter(0), "file1", 1, 1, 9, 9);
|
|
addSkipped("file1", 1, 3, 1, 8); // skipped region inside previous block
|
|
addCMR(Counter::getCounter(1), "file1", 1, 1, 4, 7);
|
|
addSkipped("file1", 4, 1, 4, 20); // skipped line
|
|
addCMR(Counter::getCounter(2), "file1", 5, 8, 9, 1);
|
|
addSkipped("file1", 10, 1, 12,
|
|
20); // skipped region which contains next region
|
|
addCMR(Counter::getCounter(3), "file1", 10, 10, 11, 11);
|
|
EXPECT_THAT_ERROR(loadCoverageMapping(), Succeeded());
|
|
CoverageData Data = LoadedCoverage->getCoverageForFile("file1");
|
|
|
|
unsigned Line = 0;
|
|
const unsigned LineCounts[] = {20, 20, 20, 0, 30, 10, 10, 10, 10, 0, 0, 0, 0};
|
|
const bool MappedLines[] = {1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0};
|
|
ASSERT_EQ(std::size(LineCounts), std::size(MappedLines));
|
|
|
|
for (const auto &LCS : getLineCoverageStats(Data)) {
|
|
ASSERT_LT(Line, std::size(LineCounts));
|
|
ASSERT_LT(Line, std::size(MappedLines));
|
|
|
|
ASSERT_EQ(Line + 1, LCS.getLine());
|
|
errs() << "Line: " << Line + 1 << ", count = " << LCS.getExecutionCount()
|
|
<< ", mapped = " << LCS.isMapped() << "\n";
|
|
ASSERT_EQ(LineCounts[Line], LCS.getExecutionCount());
|
|
ASSERT_EQ(MappedLines[Line], LCS.isMapped());
|
|
++Line;
|
|
}
|
|
ASSERT_EQ(12U, Line);
|
|
|
|
// Check that operator->() works / compiles.
|
|
ASSERT_EQ(1U, LineCoverageIterator(Data)->getLine());
|
|
}
|
|
|
|
TEST_P(CoverageMappingTest, uncovered_function) {
|
|
startFunction("func", 0x1234);
|
|
addCMR(Counter::getZero(), "file1", 1, 2, 3, 4);
|
|
EXPECT_THAT_ERROR(loadCoverageMapping(), Succeeded());
|
|
|
|
CoverageData Data = LoadedCoverage->getCoverageForFile("file1");
|
|
std::vector<CoverageSegment> Segments(Data.begin(), Data.end());
|
|
ASSERT_EQ(2U, Segments.size());
|
|
ASSERT_EQ(CoverageSegment(1, 2, 0, true), Segments[0]);
|
|
ASSERT_EQ(CoverageSegment(3, 4, false), Segments[1]);
|
|
}
|
|
|
|
TEST_P(CoverageMappingTest, uncovered_function_with_mapping) {
|
|
startFunction("func", 0x1234);
|
|
addCMR(Counter::getCounter(0), "file1", 1, 1, 9, 9);
|
|
addCMR(Counter::getCounter(1), "file1", 1, 1, 4, 7);
|
|
EXPECT_THAT_ERROR(loadCoverageMapping(), Succeeded());
|
|
|
|
CoverageData Data = LoadedCoverage->getCoverageForFile("file1");
|
|
std::vector<CoverageSegment> Segments(Data.begin(), Data.end());
|
|
ASSERT_EQ(3U, Segments.size());
|
|
ASSERT_EQ(CoverageSegment(1, 1, 0, true), Segments[0]);
|
|
ASSERT_EQ(CoverageSegment(4, 7, 0, false), Segments[1]);
|
|
ASSERT_EQ(CoverageSegment(9, 9, false), Segments[2]);
|
|
}
|
|
|
|
TEST_P(CoverageMappingTest, combine_regions) {
|
|
ProfileWriter.addRecord({"func", 0x1234, {10, 20, 30}}, Err);
|
|
|
|
startFunction("func", 0x1234);
|
|
addCMR(Counter::getCounter(0), "file1", 1, 1, 9, 9);
|
|
addCMR(Counter::getCounter(1), "file1", 3, 3, 4, 4);
|
|
addCMR(Counter::getCounter(2), "file1", 3, 3, 4, 4);
|
|
EXPECT_THAT_ERROR(loadCoverageMapping(), Succeeded());
|
|
|
|
CoverageData Data = LoadedCoverage->getCoverageForFile("file1");
|
|
std::vector<CoverageSegment> Segments(Data.begin(), Data.end());
|
|
ASSERT_EQ(4U, Segments.size());
|
|
ASSERT_EQ(CoverageSegment(1, 1, 10, true), Segments[0]);
|
|
ASSERT_EQ(CoverageSegment(3, 3, 50, true), Segments[1]);
|
|
ASSERT_EQ(CoverageSegment(4, 4, 10, false), Segments[2]);
|
|
ASSERT_EQ(CoverageSegment(9, 9, false), Segments[3]);
|
|
}
|
|
|
|
TEST_P(CoverageMappingTest, restore_combined_counter_after_nested_region) {
|
|
ProfileWriter.addRecord({"func", 0x1234, {10, 20, 40}}, Err);
|
|
|
|
startFunction("func", 0x1234);
|
|
addCMR(Counter::getCounter(0), "file1", 1, 1, 9, 9);
|
|
addCMR(Counter::getCounter(1), "file1", 1, 1, 9, 9);
|
|
addCMR(Counter::getCounter(2), "file1", 3, 3, 5, 5);
|
|
EXPECT_THAT_ERROR(loadCoverageMapping(), Succeeded());
|
|
|
|
CoverageData Data = LoadedCoverage->getCoverageForFile("file1");
|
|
std::vector<CoverageSegment> Segments(Data.begin(), Data.end());
|
|
ASSERT_EQ(4U, Segments.size());
|
|
EXPECT_EQ(CoverageSegment(1, 1, 30, true), Segments[0]);
|
|
EXPECT_EQ(CoverageSegment(3, 3, 40, true), Segments[1]);
|
|
EXPECT_EQ(CoverageSegment(5, 5, 30, false), Segments[2]);
|
|
EXPECT_EQ(CoverageSegment(9, 9, false), Segments[3]);
|
|
}
|
|
|
|
// If CodeRegions and ExpansionRegions cover the same area,
|
|
// only counts of CodeRegions should be used.
|
|
TEST_P(CoverageMappingTest, dont_combine_expansions) {
|
|
ProfileWriter.addRecord({"func", 0x1234, {10, 20}}, Err);
|
|
ProfileWriter.addRecord({"func", 0x1234, {0, 0}}, Err);
|
|
|
|
startFunction("func", 0x1234);
|
|
addCMR(Counter::getCounter(0), "file1", 1, 1, 9, 9);
|
|
addCMR(Counter::getCounter(1), "file1", 3, 3, 4, 4);
|
|
addCMR(Counter::getCounter(1), "include1", 6, 6, 7, 7);
|
|
addExpansionCMR("file1", "include1", 3, 3, 4, 4);
|
|
EXPECT_THAT_ERROR(loadCoverageMapping(), Succeeded());
|
|
|
|
CoverageData Data = LoadedCoverage->getCoverageForFile("file1");
|
|
std::vector<CoverageSegment> Segments(Data.begin(), Data.end());
|
|
ASSERT_EQ(4U, Segments.size());
|
|
ASSERT_EQ(CoverageSegment(1, 1, 10, true), Segments[0]);
|
|
ASSERT_EQ(CoverageSegment(3, 3, 20, true), Segments[1]);
|
|
ASSERT_EQ(CoverageSegment(4, 4, 10, false), Segments[2]);
|
|
ASSERT_EQ(CoverageSegment(9, 9, false), Segments[3]);
|
|
}
|
|
|
|
// If an area is covered only by ExpansionRegions, they should be combinated.
|
|
TEST_P(CoverageMappingTest, combine_expansions) {
|
|
ProfileWriter.addRecord({"func", 0x1234, {2, 3, 7}}, Err);
|
|
|
|
startFunction("func", 0x1234);
|
|
addCMR(Counter::getCounter(1), "include1", 1, 1, 1, 10);
|
|
addCMR(Counter::getCounter(2), "include2", 1, 1, 1, 10);
|
|
addCMR(Counter::getCounter(0), "file", 1, 1, 5, 5);
|
|
addExpansionCMR("file", "include1", 3, 1, 3, 5);
|
|
addExpansionCMR("file", "include2", 3, 1, 3, 5);
|
|
|
|
EXPECT_THAT_ERROR(loadCoverageMapping(), Succeeded());
|
|
|
|
CoverageData Data = LoadedCoverage->getCoverageForFile("file");
|
|
std::vector<CoverageSegment> Segments(Data.begin(), Data.end());
|
|
ASSERT_EQ(4U, Segments.size());
|
|
EXPECT_EQ(CoverageSegment(1, 1, 2, true), Segments[0]);
|
|
EXPECT_EQ(CoverageSegment(3, 1, 10, true), Segments[1]);
|
|
EXPECT_EQ(CoverageSegment(3, 5, 2, false), Segments[2]);
|
|
EXPECT_EQ(CoverageSegment(5, 5, false), Segments[3]);
|
|
}
|
|
|
|
// Test that counters not associated with any code regions are allowed.
|
|
TEST_P(CoverageMappingTest, non_code_region_counters) {
|
|
// No records in profdata
|
|
|
|
startFunction("func", 0x1234);
|
|
addCMR(Counter::getCounter(0), "file", 1, 1, 5, 5);
|
|
addCMR(Counter::getExpression(0), "file", 6, 1, 6, 5);
|
|
addExpression(CounterExpression(
|
|
CounterExpression::Add, Counter::getCounter(1), Counter::getCounter(2)));
|
|
|
|
EXPECT_THAT_ERROR(loadCoverageMapping(), Succeeded());
|
|
|
|
std::vector<std::string> Names;
|
|
for (const auto &Func : LoadedCoverage->getCoveredFunctions()) {
|
|
Names.push_back(Func.Name);
|
|
ASSERT_EQ(2U, Func.CountedRegions.size());
|
|
}
|
|
ASSERT_EQ(1U, Names.size());
|
|
}
|
|
|
|
// Test that MCDC bitmasks not associated with any code regions are allowed.
|
|
TEST_P(CoverageMappingTest, non_code_region_bitmask) {
|
|
// No records in profdata
|
|
|
|
startFunction("func", 0x1234);
|
|
addCMR(Counter::getCounter(0), "file", 1, 1, 5, 5);
|
|
addCMR(Counter::getCounter(1), "file", 1, 1, 5, 5);
|
|
addCMR(Counter::getCounter(2), "file", 1, 1, 5, 5);
|
|
addCMR(Counter::getCounter(3), "file", 1, 1, 5, 5);
|
|
|
|
addMCDCDecisionCMR(3, 2, "file", 7, 1, 7, 6);
|
|
addMCDCBranchCMR(Counter::getCounter(0), Counter::getCounter(1), 0, {-1, 1},
|
|
"file", 7, 2, 7, 3);
|
|
addMCDCBranchCMR(Counter::getCounter(2), Counter::getCounter(3), 1, {-1, -1},
|
|
"file", 7, 4, 7, 5);
|
|
|
|
EXPECT_THAT_ERROR(loadCoverageMapping(), Succeeded());
|
|
|
|
std::vector<std::string> Names;
|
|
for (const auto &Func : LoadedCoverage->getCoveredFunctions()) {
|
|
Names.push_back(Func.Name);
|
|
ASSERT_EQ(2U, Func.CountedBranchRegions.size());
|
|
ASSERT_EQ(1U, Func.MCDCRecords.size());
|
|
}
|
|
ASSERT_EQ(1U, Names.size());
|
|
}
|
|
|
|
// Test the order of MCDCDecision before Expansion
|
|
TEST_P(CoverageMappingTest, decision_before_expansion) {
|
|
startFunction("foo", 0x1234);
|
|
addCMR(Counter::getCounter(0), "foo", 3, 23, 5, 2);
|
|
|
|
// This(4:11) was put after Expansion(4:11) before the fix
|
|
addMCDCDecisionCMR(3, 2, "foo", 4, 11, 4, 20);
|
|
|
|
addExpansionCMR("foo", "A", 4, 11, 4, 12);
|
|
addExpansionCMR("foo", "B", 4, 19, 4, 20);
|
|
addCMR(Counter::getCounter(0), "A", 1, 14, 1, 17);
|
|
addCMR(Counter::getCounter(0), "A", 1, 14, 1, 17);
|
|
addMCDCBranchCMR(Counter::getCounter(0), Counter::getCounter(1), 0, {-1, 1},
|
|
"A", 1, 14, 1, 17);
|
|
addCMR(Counter::getCounter(1), "B", 1, 14, 1, 17);
|
|
addMCDCBranchCMR(Counter::getCounter(1), Counter::getCounter(2), 1, {-1, -1},
|
|
"B", 1, 14, 1, 17);
|
|
|
|
// InputFunctionCoverageData::Regions is rewritten after the write.
|
|
auto InputRegions = InputFunctions.back().Regions;
|
|
|
|
writeAndReadCoverageRegions();
|
|
|
|
const auto &OutputRegions = OutputFunctions.back().Regions;
|
|
|
|
size_t N = ArrayRef(InputRegions).size();
|
|
ASSERT_EQ(N, OutputRegions.size());
|
|
for (size_t I = 0; I < N; ++I) {
|
|
ASSERT_EQ(InputRegions[I].Kind, OutputRegions[I].Kind);
|
|
ASSERT_EQ(InputRegions[I].FileID, OutputRegions[I].FileID);
|
|
ASSERT_EQ(InputRegions[I].ExpandedFileID, OutputRegions[I].ExpandedFileID);
|
|
ASSERT_EQ(InputRegions[I].startLoc(), OutputRegions[I].startLoc());
|
|
ASSERT_EQ(InputRegions[I].endLoc(), OutputRegions[I].endLoc());
|
|
}
|
|
}
|
|
|
|
TEST_P(CoverageMappingTest, strip_filename_prefix) {
|
|
ProfileWriter.addRecord({"file1:func", 0x1234, {0}}, Err);
|
|
|
|
startFunction("file1:func", 0x1234);
|
|
addCMR(Counter::getCounter(0), "file1", 1, 1, 9, 9);
|
|
EXPECT_THAT_ERROR(loadCoverageMapping(), Succeeded());
|
|
|
|
std::vector<std::string> Names;
|
|
for (const auto &Func : LoadedCoverage->getCoveredFunctions())
|
|
Names.push_back(Func.Name);
|
|
ASSERT_EQ(1U, Names.size());
|
|
ASSERT_EQ("func", Names[0]);
|
|
}
|
|
|
|
TEST_P(CoverageMappingTest, strip_unknown_filename_prefix) {
|
|
ProfileWriter.addRecord({"<unknown>:func", 0x1234, {0}}, Err);
|
|
|
|
startFunction("<unknown>:func", 0x1234);
|
|
addCMR(Counter::getCounter(0), "", 1, 1, 9, 9);
|
|
EXPECT_THAT_ERROR(loadCoverageMapping(/*EmitFilenames=*/false), Succeeded());
|
|
|
|
std::vector<std::string> Names;
|
|
for (const auto &Func : LoadedCoverage->getCoveredFunctions())
|
|
Names.push_back(Func.Name);
|
|
ASSERT_EQ(1U, Names.size());
|
|
ASSERT_EQ("func", Names[0]);
|
|
}
|
|
|
|
TEST_P(CoverageMappingTest, dont_detect_false_instantiations) {
|
|
ProfileWriter.addRecord({"foo", 0x1234, {10}}, Err);
|
|
ProfileWriter.addRecord({"bar", 0x2345, {20}}, Err);
|
|
|
|
startFunction("foo", 0x1234);
|
|
addCMR(Counter::getCounter(0), "expanded", 1, 1, 1, 10);
|
|
addExpansionCMR("main", "expanded", 4, 1, 4, 5);
|
|
|
|
startFunction("bar", 0x2345);
|
|
addCMR(Counter::getCounter(0), "expanded", 1, 1, 1, 10);
|
|
addExpansionCMR("main", "expanded", 9, 1, 9, 5);
|
|
|
|
EXPECT_THAT_ERROR(loadCoverageMapping(), Succeeded());
|
|
|
|
std::vector<InstantiationGroup> InstantiationGroups =
|
|
LoadedCoverage->getInstantiationGroups("expanded");
|
|
ASSERT_TRUE(InstantiationGroups.empty());
|
|
}
|
|
|
|
TEST_P(CoverageMappingTest, load_coverage_for_expanded_file) {
|
|
ProfileWriter.addRecord({"func", 0x1234, {10}}, Err);
|
|
|
|
startFunction("func", 0x1234);
|
|
addCMR(Counter::getCounter(0), "expanded", 1, 1, 1, 10);
|
|
addExpansionCMR("main", "expanded", 4, 1, 4, 5);
|
|
|
|
EXPECT_THAT_ERROR(loadCoverageMapping(), Succeeded());
|
|
|
|
CoverageData Data = LoadedCoverage->getCoverageForFile("expanded");
|
|
std::vector<CoverageSegment> Segments(Data.begin(), Data.end());
|
|
ASSERT_EQ(2U, Segments.size());
|
|
EXPECT_EQ(CoverageSegment(1, 1, 10, true), Segments[0]);
|
|
EXPECT_EQ(CoverageSegment(1, 10, false), Segments[1]);
|
|
}
|
|
|
|
TEST_P(CoverageMappingTest, skip_duplicate_function_record) {
|
|
ProfileWriter.addRecord({"func", 0x1234, {1}}, Err);
|
|
|
|
// This record should be loaded.
|
|
startFunction("func", 0x1234);
|
|
addCMR(Counter::getCounter(0), "file1", 1, 1, 9, 9);
|
|
|
|
// This record should be loaded.
|
|
startFunction("func", 0x1234);
|
|
addCMR(Counter::getCounter(0), "file1", 1, 1, 9, 9);
|
|
addCMR(Counter::getCounter(0), "file2", 1, 1, 9, 9);
|
|
|
|
// This record should be skipped.
|
|
startFunction("func", 0x1234);
|
|
addCMR(Counter::getCounter(0), "file1", 1, 1, 9, 9);
|
|
|
|
// This record should be loaded.
|
|
startFunction("func", 0x1234);
|
|
addCMR(Counter::getCounter(0), "file2", 1, 1, 9, 9);
|
|
addCMR(Counter::getCounter(0), "file1", 1, 1, 9, 9);
|
|
|
|
// This record should be skipped.
|
|
startFunction("func", 0x1234);
|
|
addCMR(Counter::getCounter(0), "file1", 1, 1, 9, 9);
|
|
addCMR(Counter::getCounter(0), "file2", 1, 1, 9, 9);
|
|
|
|
EXPECT_THAT_ERROR(loadCoverageMapping(), Succeeded());
|
|
|
|
auto Funcs = LoadedCoverage->getCoveredFunctions();
|
|
unsigned NumFuncs = std::distance(Funcs.begin(), Funcs.end());
|
|
ASSERT_EQ(3U, NumFuncs);
|
|
}
|
|
|
|
INSTANTIATE_TEST_SUITE_P(ParameterizedCovMapTest, CoverageMappingTest,
|
|
::testing::Combine(::testing::Bool(),
|
|
::testing::Bool()));
|
|
|
|
TEST(CoverageMappingTest, filename_roundtrip) {
|
|
std::vector<std::string> Paths({"dir", "a", "b", "c", "d", "e"});
|
|
|
|
for (bool Compress : {false, true}) {
|
|
std::string EncodedFilenames;
|
|
{
|
|
raw_string_ostream OS(EncodedFilenames);
|
|
CoverageFilenamesSectionWriter Writer(Paths);
|
|
Writer.write(OS, Compress);
|
|
}
|
|
|
|
std::vector<std::string> ReadFilenames;
|
|
RawCoverageFilenamesReader Reader(EncodedFilenames, ReadFilenames);
|
|
EXPECT_THAT_ERROR(Reader.read(CovMapVersion::CurrentVersion), Succeeded());
|
|
|
|
ASSERT_EQ(ReadFilenames.size(), Paths.size());
|
|
for (unsigned I = 1; I < Paths.size(); ++I) {
|
|
SmallString<256> P(Paths[0]);
|
|
llvm::sys::path::append(P, Paths[I]);
|
|
ASSERT_EQ(ReadFilenames[I], P);
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST(CoverageMappingTest, filename_compilation_dir) {
|
|
std::vector<std::string> Paths({"dir", "a", "b", "c", "d", "e"});
|
|
|
|
for (bool Compress : {false, true}) {
|
|
std::string EncodedFilenames;
|
|
{
|
|
raw_string_ostream OS(EncodedFilenames);
|
|
CoverageFilenamesSectionWriter Writer(Paths);
|
|
Writer.write(OS, Compress);
|
|
}
|
|
|
|
StringRef CompilationDir = "out";
|
|
std::vector<std::string> ReadFilenames;
|
|
RawCoverageFilenamesReader Reader(EncodedFilenames, ReadFilenames,
|
|
CompilationDir);
|
|
EXPECT_THAT_ERROR(Reader.read(CovMapVersion::CurrentVersion), Succeeded());
|
|
|
|
ASSERT_EQ(ReadFilenames.size(), Paths.size());
|
|
for (unsigned I = 1; I < Paths.size(); ++I) {
|
|
SmallString<256> P(CompilationDir);
|
|
llvm::sys::path::append(P, Paths[I]);
|
|
ASSERT_EQ(ReadFilenames[I], P);
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST(CoverageMappingTest, TVIdxBuilder) {
|
|
// ((n0 && n3) || (n2 && n4) || (n1 && n5))
|
|
static const std::array<mcdc::ConditionIDs, 6> Branches = {{
|
|
{2, 3},
|
|
{-1, 5},
|
|
{1, 4},
|
|
{2, -1},
|
|
{1, -1},
|
|
{-1, -1},
|
|
}};
|
|
int Offset = 1000;
|
|
auto TheBuilder = mcdc::TVIdxBuilder(
|
|
SmallVector<mcdc::ConditionIDs>(ArrayRef(Branches)), Offset);
|
|
EXPECT_TRUE(TheBuilder.NumTestVectors < TheBuilder.HardMaxTVs);
|
|
EXPECT_EQ(TheBuilder.Indices.size(), 6u);
|
|
EXPECT_EQ(TheBuilder.NumTestVectors, 15);
|
|
|
|
std::map<int, int> Decisions;
|
|
for (unsigned I = 0; I < TheBuilder.Indices.size(); ++I) {
|
|
struct Rec {
|
|
int Width;
|
|
std::array<int, 2> Indices;
|
|
};
|
|
static const std::array<Rec, 6> IndicesRefs = {{
|
|
{1, {0, 0}},
|
|
{4, {1000, 0}},
|
|
{2, {0, 0}},
|
|
{1, {1, 1014}},
|
|
{2, {2, 1012}},
|
|
{4, {1004, 1008}},
|
|
}};
|
|
EXPECT_EQ(TheBuilder.Indices[I], IndicesRefs[I].Indices);
|
|
|
|
#ifndef NDEBUG
|
|
const auto &Node = TheBuilder.SavedNodes[I];
|
|
EXPECT_EQ(Node.Width, IndicesRefs[I].Width);
|
|
for (int C = 0; C < 2; ++C) {
|
|
auto Index = TheBuilder.Indices[I][C];
|
|
if (Node.NextIDs[C] < 0)
|
|
EXPECT_TRUE(Decisions.insert({Index, Node.Width}).second);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
#ifndef NDEBUG
|
|
int NextIdx = Offset;
|
|
for (const auto [Index, Width] : Decisions) {
|
|
EXPECT_EQ(Index, NextIdx);
|
|
NextIdx += Width;
|
|
}
|
|
// The sum of Width(s) is NumTVs.
|
|
EXPECT_EQ(NextIdx, Offset + TheBuilder.NumTestVectors);
|
|
#endif
|
|
}
|
|
|
|
} // end anonymous namespace
|