878c141adc
Adds the [DiagnosticTag][diagtag] LSP construct to the LSP support headers. I also added a unit test file to validate that the `tags` array is omitted entirely if it's empty. The LSP spec requires that `Diagnostic::tags` be an array; in order to conform to that I used `std::vector`, as `SmallVector` doesn't have JSON decoding support (you can encode it to JSON, but not decode it from JSON). [diagtag]: https://microsoft.github.io/language-server-protocol/specifications/lsp/3.18/specification/#diagnosticTag
52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
//===- Protocol.cpp - LSP JSON protocol unit tests ------------------------===//
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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 "mlir/Tools/lsp-server-support/Protocol.h"
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#include "gtest/gtest.h"
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using namespace mlir;
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using namespace mlir::lsp;
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using namespace testing;
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namespace {
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TEST(ProtocolTest, DiagnosticTagPresent) {
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Diagnostic diagnostic;
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diagnostic.tags.push_back(DiagnosticTag::Unnecessary);
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llvm::json::Value json = toJSON(diagnostic);
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const llvm::json::Object *o = json.getAsObject();
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const llvm::json::Array *v = o->get("tags")->getAsArray();
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EXPECT_EQ(*v, llvm::json::Array{1});
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Diagnostic parsed;
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llvm::json::Path::Root root = llvm::json::Path::Root();
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bool success = fromJSON(json, parsed, llvm::json::Path(root));
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EXPECT_TRUE(success);
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ASSERT_EQ(parsed.tags.size(), (size_t)1);
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EXPECT_EQ(parsed.tags.at(0), DiagnosticTag::Unnecessary);
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}
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TEST(ProtocolTest, DiagnosticTagNotPresent) {
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Diagnostic diagnostic;
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llvm::json::Value json = toJSON(diagnostic);
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const llvm::json::Object *o = json.getAsObject();
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const llvm::json::Value *v = o->get("tags");
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EXPECT_EQ(v, nullptr);
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Diagnostic parsed;
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llvm::json::Path::Root root = llvm::json::Path::Root();
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bool success = fromJSON(json, parsed, llvm::json::Path(root));
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EXPECT_TRUE(success);
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EXPECT_TRUE(parsed.tags.empty());
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}
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} // namespace
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