llvm-project/clang/unittests/Format/FormatTestJS.cpp
Martin Probst fa37b18f94 clang-format: [JS] do not format MPEG transport streams.
Summary:
The MPEG transport stream file format also uses ".ts" as its file extension.
This change detects its specific framing format (0x47 every 189 bytes) and
simply ignores MPEG TS files.

Reviewers: djasper, sammccall

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D29186

llvm-svn: 293270
2017-01-27 09:09:11 +00:00

1581 lines
53 KiB
C++

//===- unittest/Format/FormatTestJS.cpp - Formatting unit tests for JS ----===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "FormatTestUtils.h"
#include "clang/Format/Format.h"
#include "llvm/Support/Debug.h"
#include "gtest/gtest.h"
#define DEBUG_TYPE "format-test"
namespace clang {
namespace format {
class FormatTestJS : public ::testing::Test {
protected:
static std::string format(llvm::StringRef Code, unsigned Offset,
unsigned Length, const FormatStyle &Style) {
DEBUG(llvm::errs() << "---\n");
DEBUG(llvm::errs() << Code << "\n\n");
std::vector<tooling::Range> Ranges(1, tooling::Range(Offset, Length));
bool IncompleteFormat = false;
tooling::Replacements Replaces =
reformat(Style, Code, Ranges, "<stdin>", &IncompleteFormat);
EXPECT_FALSE(IncompleteFormat);
auto Result = applyAllReplacements(Code, Replaces);
EXPECT_TRUE(static_cast<bool>(Result));
DEBUG(llvm::errs() << "\n" << *Result << "\n\n");
return *Result;
}
static std::string format(
llvm::StringRef Code,
const FormatStyle &Style = getGoogleStyle(FormatStyle::LK_JavaScript)) {
return format(Code, 0, Code.size(), Style);
}
static FormatStyle getGoogleJSStyleWithColumns(unsigned ColumnLimit) {
FormatStyle Style = getGoogleStyle(FormatStyle::LK_JavaScript);
Style.ColumnLimit = ColumnLimit;
return Style;
}
static void verifyFormat(
llvm::StringRef Code,
const FormatStyle &Style = getGoogleStyle(FormatStyle::LK_JavaScript)) {
std::string Result = format(test::messUp(Code), Style);
EXPECT_EQ(Code.str(), Result) << "Formatted:\n" << Result;
}
static void verifyFormat(
llvm::StringRef Expected,
llvm::StringRef Code,
const FormatStyle &Style = getGoogleStyle(FormatStyle::LK_JavaScript)) {
std::string Result = format(Code, Style);
EXPECT_EQ(Expected.str(), Result) << "Formatted:\n" << Result;
}
};
TEST_F(FormatTestJS, BlockComments) {
verifyFormat("/* aaaaaaaaaaaaa */ aaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
" aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);");
}
TEST_F(FormatTestJS, UnderstandsJavaScriptOperators) {
verifyFormat("a == = b;");
verifyFormat("a != = b;");
verifyFormat("a === b;");
verifyFormat("aaaaaaa ===\n b;", getGoogleJSStyleWithColumns(10));
verifyFormat("a !== b;");
verifyFormat("aaaaaaa !==\n b;", getGoogleJSStyleWithColumns(10));
verifyFormat("if (a + b + c +\n"
" d !==\n"
" e + f + g)\n"
" q();",
getGoogleJSStyleWithColumns(20));
verifyFormat("a >> >= b;");
verifyFormat("a >>> b;");
verifyFormat("aaaaaaa >>>\n b;", getGoogleJSStyleWithColumns(10));
verifyFormat("a >>>= b;");
verifyFormat("aaaaaaa >>>=\n b;", getGoogleJSStyleWithColumns(10));
verifyFormat("if (a + b + c +\n"
" d >>>\n"
" e + f + g)\n"
" q();",
getGoogleJSStyleWithColumns(20));
verifyFormat("var x = aaaaaaaaaa ?\n"
" bbbbbb :\n"
" ccc;",
getGoogleJSStyleWithColumns(20));
verifyFormat("var b = a.map((x) => x + 1);");
verifyFormat("return ('aaa') in bbbb;");
verifyFormat("var x = aaaaaaaaaaaaaaaaaaaaaaaaa() in\n"
" aaaa.aaaaaa.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;");
FormatStyle Style = getGoogleJSStyleWithColumns(80);
Style.AlignOperands = true;
verifyFormat("var x = aaaaaaaaaaaaaaaaaaaaaaaaa() in\n"
" aaaa.aaaaaa.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;",
Style);
Style.BreakBeforeBinaryOperators = FormatStyle::BOS_All;
verifyFormat("var x = aaaaaaaaaaaaaaaaaaaaaaaaa()\n"
" in aaaa.aaaaaa.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;",
Style);
// ES6 spread operator.
verifyFormat("someFunction(...a);");
verifyFormat("var x = [1, ...a, 2];");
}
TEST_F(FormatTestJS, UnderstandsAmpAmp) {
verifyFormat("e && e.SomeFunction();");
}
TEST_F(FormatTestJS, LiteralOperatorsCanBeKeywords) {
verifyFormat("not.and.or.not_eq = 1;");
}
TEST_F(FormatTestJS, ReservedWords) {
// JavaScript reserved words (aka keywords) are only illegal when used as
// Identifiers, but are legal as IdentifierNames.
verifyFormat("x.class.struct = 1;");
verifyFormat("x.case = 1;");
verifyFormat("x.interface = 1;");
verifyFormat("x.for = 1;");
verifyFormat("x.of() = 1;");
verifyFormat("x.in() = 1;");
verifyFormat("x.let() = 1;");
verifyFormat("x.var() = 1;");
verifyFormat("x.for() = 1;");
verifyFormat("x.as() = 1;");
verifyFormat("x = {\n"
" a: 12,\n"
" interface: 1,\n"
" switch: 1,\n"
"};");
verifyFormat("var struct = 2;");
verifyFormat("var union = 2;");
verifyFormat("var interface = 2;");
verifyFormat("interface = 2;");
verifyFormat("x = interface instanceof y;");
}
TEST_F(FormatTestJS, ReservedWordsMethods) {
verifyFormat(
"class X {\n"
" delete() {\n"
" x();\n"
" }\n"
" interface() {\n"
" x();\n"
" }\n"
" let() {\n"
" x();\n"
" }\n"
"}\n");
}
TEST_F(FormatTestJS, CppKeywords) {
// Make sure we don't mess stuff up because of C++ keywords.
verifyFormat("return operator && (aa);");
}
TEST_F(FormatTestJS, ES6DestructuringAssignment) {
verifyFormat("var [a, b, c] = [1, 2, 3];");
verifyFormat("const [a, b, c] = [1, 2, 3];");
verifyFormat("let [a, b, c] = [1, 2, 3];");
verifyFormat("var {a, b} = {a: 1, b: 2};");
verifyFormat("let {a, b} = {a: 1, b: 2};");
}
TEST_F(FormatTestJS, ContainerLiterals) {
verifyFormat("var x = {\n"
" y: function(a) {\n"
" return a;\n"
" }\n"
"};");
verifyFormat("return {\n"
" link: function() {\n"
" f(); //\n"
" }\n"
"};");
verifyFormat("return {\n"
" a: a,\n"
" link: function() {\n"
" f(); //\n"
" }\n"
"};");
verifyFormat("return {\n"
" a: a,\n"
" link: function() {\n"
" f(); //\n"
" },\n"
" link: function() {\n"
" f(); //\n"
" }\n"
"};");
verifyFormat("var stuff = {\n"
" // comment for update\n"
" update: false,\n"
" // comment for modules\n"
" modules: false,\n"
" // comment for tasks\n"
" tasks: false\n"
"};");
verifyFormat("return {\n"
" 'finish':\n"
" //\n"
" a\n"
"};");
verifyFormat("var obj = {\n"
" fooooooooo: function(x) {\n"
" return x.zIsTooLongForOneLineWithTheDeclarationLine();\n"
" }\n"
"};");
// Simple object literal, as opposed to enum style below.
verifyFormat("var obj = {a: 123};");
// Enum style top level assignment.
verifyFormat("X = {\n a: 123\n};");
verifyFormat("X.Y = {\n a: 123\n};");
// But only on the top level, otherwise its a plain object literal assignment.
verifyFormat("function x() {\n"
" y = {z: 1};\n"
"}");
verifyFormat("x = foo && {a: 123};");
// Arrow functions in object literals.
verifyFormat("var x = {\n"
" y: (a) => {\n"
" return a;\n"
" }\n"
"};");
verifyFormat("var x = {y: (a) => a};");
// Computed keys.
verifyFormat("var x = {[a]: 1, b: 2, [c]: 3};");
verifyFormat("var x = {\n"
" [a]: 1,\n"
" b: 2,\n"
" [c]: 3,\n"
"};");
// Object literals can leave out labels.
verifyFormat("f({a}, () => {\n"
" g(); //\n"
"});");
// Keys can be quoted.
verifyFormat("var x = {\n"
" a: a,\n"
" b: b,\n"
" 'c': c,\n"
"};");
// Dict literals can skip the label names.
verifyFormat("var x = {\n"
" aaa,\n"
" aaa,\n"
" aaa,\n"
"};");
}
TEST_F(FormatTestJS, MethodsInObjectLiterals) {
verifyFormat("var o = {\n"
" value: 'test',\n"
" get value() { // getter\n"
" return this.value;\n"
" }\n"
"};");
verifyFormat("var o = {\n"
" value: 'test',\n"
" set value(val) { // setter\n"
" this.value = val;\n"
" }\n"
"};");
verifyFormat("var o = {\n"
" value: 'test',\n"
" someMethod(val) { // method\n"
" doSomething(this.value + val);\n"
" }\n"
"};");
verifyFormat("var o = {\n"
" someMethod(val) { // method\n"
" doSomething(this.value + val);\n"
" },\n"
" someOtherMethod(val) { // method\n"
" doSomething(this.value + val);\n"
" }\n"
"};");
}
TEST_F(FormatTestJS, SpacesInContainerLiterals) {
verifyFormat("var arr = [1, 2, 3];");
verifyFormat("f({a: 1, b: 2, c: 3});");
verifyFormat("var object_literal_with_long_name = {\n"
" a: 'aaaaaaaaaaaaaaaaaa',\n"
" b: 'bbbbbbbbbbbbbbbbbb'\n"
"};");
verifyFormat("f({a: 1, b: 2, c: 3});",
getChromiumStyle(FormatStyle::LK_JavaScript));
verifyFormat("f({'a': [{}]});");
}
TEST_F(FormatTestJS, SingleQuotedStrings) {
verifyFormat("this.function('', true);");
}
TEST_F(FormatTestJS, GoogScopes) {
verifyFormat("goog.scope(function() {\n"
"var x = a.b;\n"
"var y = c.d;\n"
"}); // goog.scope");
verifyFormat("goog.scope(function() {\n"
"// test\n"
"var x = 0;\n"
"// test\n"
"});");
}
TEST_F(FormatTestJS, GoogModules) {
verifyFormat("goog.module('this.is.really.absurdly.long');",
getGoogleJSStyleWithColumns(40));
verifyFormat("goog.require('this.is.really.absurdly.long');",
getGoogleJSStyleWithColumns(40));
verifyFormat("goog.provide('this.is.really.absurdly.long');",
getGoogleJSStyleWithColumns(40));
verifyFormat("var long = goog.require('this.is.really.absurdly.long');",
getGoogleJSStyleWithColumns(40));
verifyFormat("goog.setTestOnly('this.is.really.absurdly.long');",
getGoogleJSStyleWithColumns(40));
verifyFormat("goog.forwardDeclare('this.is.really.absurdly.long');",
getGoogleJSStyleWithColumns(40));
// These should be wrapped normally.
verifyFormat(
"var MyLongClassName =\n"
" goog.module.get('my.long.module.name.followedBy.MyLongClassName');");
}
TEST_F(FormatTestJS, FormatsNamespaces) {
verifyFormat("namespace Foo {\n"
" export let x = 1;\n"
"}\n");
verifyFormat("declare namespace Foo {\n"
" export let x: number;\n"
"}\n");
}
TEST_F(FormatTestJS, NamespacesMayNotWrap) {
verifyFormat("declare namespace foobarbaz {\n"
"}\n", getGoogleJSStyleWithColumns(18));
verifyFormat("declare module foobarbaz {\n"
"}\n", getGoogleJSStyleWithColumns(15));
verifyFormat("namespace foobarbaz {\n"
"}\n", getGoogleJSStyleWithColumns(10));
verifyFormat("module foobarbaz {\n"
"}\n", getGoogleJSStyleWithColumns(7));
}
TEST_F(FormatTestJS, AmbientDeclarations) {
FormatStyle NineCols = getGoogleJSStyleWithColumns(9);
verifyFormat(
"declare class\n"
" X {}",
NineCols);
verifyFormat(
"declare function\n"
"x();", // TODO(martinprobst): should ideally be indented.
NineCols);
verifyFormat("declare function foo();\n"
"let x = 1;\n");
verifyFormat("declare function foo(): string;\n"
"let x = 1;\n");
verifyFormat("declare function foo(): {x: number};\n"
"let x = 1;\n");
verifyFormat("declare class X {}\n"
"let x = 1;\n");
verifyFormat("declare interface Y {}\n"
"let x = 1;\n");
verifyFormat(
"declare enum X {\n"
"}",
NineCols);
verifyFormat(
"declare let\n"
" x: number;",
NineCols);
}
TEST_F(FormatTestJS, FormatsFreestandingFunctions) {
verifyFormat("function outer1(a, b) {\n"
" function inner1(a, b) {\n"
" return a;\n"
" }\n"
" inner1(a, b);\n"
"}\n"
"function outer2(a, b) {\n"
" function inner2(a, b) {\n"
" return a;\n"
" }\n"
" inner2(a, b);\n"
"}");
verifyFormat("function f() {}");
}
TEST_F(FormatTestJS, GeneratorFunctions) {
verifyFormat("function* f() {\n"
" let x = 1;\n"
" yield x;\n"
" yield* something();\n"
" yield [1, 2];\n"
" yield {a: 1};\n"
"}");
verifyFormat("function*\n"
" f() {\n"
"}",
getGoogleJSStyleWithColumns(8));
verifyFormat("export function* f() {\n"
" yield 1;\n"
"}\n");
verifyFormat("class X {\n"
" * generatorMethod() {\n"
" yield x;\n"
" }\n"
"}");
verifyFormat("var x = {\n"
" a: function*() {\n"
" //\n"
" }\n"
"}\n");
}
TEST_F(FormatTestJS, AsyncFunctions) {
verifyFormat("async function f() {\n"
" let x = 1;\n"
" return fetch(x);\n"
"}");
verifyFormat("async function* f() {\n"
" yield fetch(x);\n"
"}");
verifyFormat("export async function f() {\n"
" return fetch(x);\n"
"}");
verifyFormat("class X {\n"
" async asyncMethod() {\n"
" return fetch(1);\n"
" }\n"
"}");
verifyFormat("function initialize() {\n"
" // Comment.\n"
" return async.then();\n"
"}\n");
}
TEST_F(FormatTestJS, ArrayLiterals) {
verifyFormat("var aaaaa: List<SomeThing> =\n"
" [new SomeThingAAAAAAAAAAAA(), new SomeThingBBBBBBBBB()];");
verifyFormat("return [\n"
" aaaaaaaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbbbbbbbbbbbbbbbbbbbb,\n"
" ccccccccccccccccccccccccccc\n"
"];");
verifyFormat("return [\n"
" aaaa().bbbbbbbb('A'),\n"
" aaaa().bbbbbbbb('B'),\n"
" aaaa().bbbbbbbb('C'),\n"
"];");
verifyFormat("var someVariable = SomeFunction([\n"
" aaaaaaaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbbbbbbbbbbbbbbbbbbbb,\n"
" ccccccccccccccccccccccccccc\n"
"]);");
verifyFormat("var someVariable = SomeFunction([\n"
" [aaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbbbbbbbbbbbbbbb],\n"
"]);",
getGoogleJSStyleWithColumns(51));
verifyFormat("var someVariable = SomeFunction(aaaa, [\n"
" aaaaaaaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbbbbbbbbbbbbbbbbbbbb,\n"
" ccccccccccccccccccccccccccc\n"
"]);");
verifyFormat("var someVariable = SomeFunction(\n"
" aaaa,\n"
" [\n"
" aaaaaaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbbbbbbbbbbbbbbbbbbb,\n"
" cccccccccccccccccccccccccc\n"
" ],\n"
" aaaa);");
verifyFormat("var aaaa = aaaaa || // wrap\n"
" [];");
verifyFormat("someFunction([], {a: a});");
}
TEST_F(FormatTestJS, ColumnLayoutForArrayLiterals) {
verifyFormat("var array = [\n"
" a, a, a, a, a, a, a, a, a, a, a, a, a, a, a,\n"
" a, a, a, a, a, a, a, a, a, a, a, a, a, a, a,\n"
"];");
verifyFormat("var array = someFunction([\n"
" a, a, a, a, a, a, a, a, a, a, a, a, a, a, a,\n"
" a, a, a, a, a, a, a, a, a, a, a, a, a, a, a,\n"
"]);");
}
TEST_F(FormatTestJS, FunctionLiterals) {
FormatStyle Style = getGoogleStyle(FormatStyle::LK_JavaScript);
Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_Inline;
verifyFormat("doFoo(function() {});");
verifyFormat("doFoo(function() { return 1; });", Style);
verifyFormat("var func = function() {\n"
" return 1;\n"
"};");
verifyFormat("var func = //\n"
" function() {\n"
" return 1;\n"
"};");
verifyFormat("return {\n"
" body: {\n"
" setAttribute: function(key, val) { this[key] = val; },\n"
" getAttribute: function(key) { return this[key]; },\n"
" style: {direction: ''}\n"
" }\n"
"};",
Style);
verifyFormat("abc = xyz ? function() {\n"
" return 1;\n"
"} : function() {\n"
" return -1;\n"
"};");
verifyFormat("var closure = goog.bind(\n"
" function() { // comment\n"
" foo();\n"
" bar();\n"
" },\n"
" this, arg1IsReallyLongAndNeedsLineBreaks,\n"
" arg3IsReallyLongAndNeedsLineBreaks);");
verifyFormat("var closure = goog.bind(function() { // comment\n"
" foo();\n"
" bar();\n"
"}, this);");
verifyFormat("return {\n"
" a: 'E',\n"
" b: function() {\n"
" return function() {\n"
" f(); //\n"
" };\n"
" }\n"
"};");
verifyFormat("{\n"
" var someVariable = function(x) {\n"
" return x.zIsTooLongForOneLineWithTheDeclarationLine();\n"
" };\n"
"}");
verifyFormat("someLooooooooongFunction(\n"
" aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
" aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
" function(aaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n"
" // code\n"
" });");
verifyFormat("return {\n"
" a: function SomeFunction() {\n"
" // ...\n"
" return 1;\n"
" }\n"
"};");
verifyFormat("this.someObject.doSomething(aaaaaaaaaaaaaaaaaaaaaaaaaa)\n"
" .then(goog.bind(function(aaaaaaaaaaa) {\n"
" someFunction();\n"
" someFunction();\n"
" }, this), aaaaaaaaaaaaaaaaa);");
verifyFormat("someFunction(goog.bind(function() {\n"
" doSomething();\n"
" doSomething();\n"
"}, this), goog.bind(function() {\n"
" doSomething();\n"
" doSomething();\n"
"}, this));");
// FIXME: This is bad, we should be wrapping before "function() {".
verifyFormat("someFunction(function() {\n"
" doSomething(); // break\n"
"})\n"
" .doSomethingElse(\n"
" // break\n"
" );");
Style.ColumnLimit = 33;
verifyFormat("f({a: function() { return 1; }});", Style);
Style.ColumnLimit = 32;
verifyFormat("f({\n"
" a: function() { return 1; }\n"
"});",
Style);
}
TEST_F(FormatTestJS, InliningFunctionLiterals) {
FormatStyle Style = getGoogleStyle(FormatStyle::LK_JavaScript);
Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_Inline;
verifyFormat("var func = function() {\n"
" return 1;\n"
"};",
Style);
verifyFormat("var func = doSomething(function() { return 1; });", Style);
verifyFormat("var outer = function() {\n"
" var inner = function() { return 1; }\n"
"};",
Style);
verifyFormat("function outer1(a, b) {\n"
" function inner1(a, b) { return a; }\n"
"}",
Style);
Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_All;
verifyFormat("var func = function() { return 1; };", Style);
verifyFormat("var func = doSomething(function() { return 1; });", Style);
verifyFormat(
"var outer = function() { var inner = function() { return 1; } };",
Style);
verifyFormat("function outer1(a, b) {\n"
" function inner1(a, b) { return a; }\n"
"}",
Style);
Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_None;
verifyFormat("var func = function() {\n"
" return 1;\n"
"};",
Style);
verifyFormat("var func = doSomething(function() {\n"
" return 1;\n"
"});",
Style);
verifyFormat("var outer = function() {\n"
" var inner = function() {\n"
" return 1;\n"
" }\n"
"};",
Style);
verifyFormat("function outer1(a, b) {\n"
" function inner1(a, b) {\n"
" return a;\n"
" }\n"
"}",
Style);
Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_Empty;
verifyFormat("var func = function() {\n"
" return 1;\n"
"};",
Style);
}
TEST_F(FormatTestJS, MultipleFunctionLiterals) {
FormatStyle Style = getGoogleStyle(FormatStyle::LK_JavaScript);
Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_All;
verifyFormat("promise.then(\n"
" function success() {\n"
" doFoo();\n"
" doBar();\n"
" },\n"
" function error() {\n"
" doFoo();\n"
" doBaz();\n"
" },\n"
" []);\n");
verifyFormat("promise.then(\n"
" function success() {\n"
" doFoo();\n"
" doBar();\n"
" },\n"
" [],\n"
" function error() {\n"
" doFoo();\n"
" doBaz();\n"
" });\n");
verifyFormat("promise.then(\n"
" [],\n"
" function success() {\n"
" doFoo();\n"
" doBar();\n"
" },\n"
" function error() {\n"
" doFoo();\n"
" doBaz();\n"
" });\n");
verifyFormat("getSomeLongPromise()\n"
" .then(function(value) { body(); })\n"
" .thenCatch(function(error) {\n"
" body();\n"
" body();\n"
" });",
Style);
verifyFormat("getSomeLongPromise()\n"
" .then(function(value) {\n"
" body();\n"
" body();\n"
" })\n"
" .thenCatch(function(error) {\n"
" body();\n"
" body();\n"
" });");
verifyFormat("getSomeLongPromise()\n"
" .then(function(value) { body(); })\n"
" .thenCatch(function(error) { body(); });",
Style);
verifyFormat("return [aaaaaaaaaaaaaaaaaaaaaa]\n"
" .aaaaaaa(function() {\n"
" //\n"
" })\n"
" .bbbbbb();");
}
TEST_F(FormatTestJS, ArrowFunctions) {
verifyFormat("var x = (a) => {\n"
" return a;\n"
"};");
verifyFormat("var x = (a) => {\n"
" function y() {\n"
" return 42;\n"
" }\n"
" return a;\n"
"};");
verifyFormat("var x = (a: type): {some: type} => {\n"
" return a;\n"
"};");
verifyFormat("var x = (a) => a;");
verifyFormat("return () => [];");
verifyFormat("var aaaaaaaaaaaaaaaaaaaa = {\n"
" aaaaaaaaaaaaaaaaaaaaaaaaaaaa:\n"
" (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
" aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) =>\n"
" aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
"};");
verifyFormat("var a = a.aaaaaaa(\n"
" (a: a) => aaaaaaaaaaaaaaaaaaaaaaaaa(bbbbbbbbb) &&\n"
" aaaaaaaaaaaaaaaaaaaaaaaaa(bbbbbbb));");
verifyFormat("var a = a.aaaaaaa(\n"
" (a: a) => aaaaaaaaaaaaaaaaaaaaa(bbbbbbbbb) ?\n"
" aaaaaaaaaaaaaaaaaaaaa(bbbbbbb) :\n"
" aaaaaaaaaaaaaaaaaaaaa(bbbbbbb));");
// FIXME: This is bad, we should be wrapping before "() => {".
verifyFormat("someFunction(() => {\n"
" doSomething(); // break\n"
"})\n"
" .doSomethingElse(\n"
" // break\n"
" );");
}
TEST_F(FormatTestJS, ReturnStatements) {
verifyFormat("function() {\n"
" return [hello, world];\n"
"}");
}
TEST_F(FormatTestJS, ForLoops) {
verifyFormat("for (var i in [2, 3]) {\n"
"}");
verifyFormat("for (var i of [2, 3]) {\n"
"}");
verifyFormat("for (let {a, b} of x) {\n"
"}");
verifyFormat("for (let {a, b} in x) {\n"
"}");
}
TEST_F(FormatTestJS, WrapRespectsAutomaticSemicolonInsertion) {
// The following statements must not wrap, as otherwise the program meaning
// would change due to automatic semicolon insertion.
// See http://www.ecma-international.org/ecma-262/5.1/#sec-7.9.1.
verifyFormat("return aaaaa;", getGoogleJSStyleWithColumns(10));
verifyFormat("return /* hello! */ aaaaa;", getGoogleJSStyleWithColumns(10));
verifyFormat("continue aaaaa;", getGoogleJSStyleWithColumns(10));
verifyFormat("continue /* hello! */ aaaaa;", getGoogleJSStyleWithColumns(10));
verifyFormat("break aaaaa;", getGoogleJSStyleWithColumns(10));
verifyFormat("throw aaaaa;", getGoogleJSStyleWithColumns(10));
verifyFormat("aaaaaaaaa++;", getGoogleJSStyleWithColumns(10));
verifyFormat("aaaaaaaaa--;", getGoogleJSStyleWithColumns(10));
verifyFormat("return [\n"
" aaa\n"
"];",
getGoogleJSStyleWithColumns(12));
}
TEST_F(FormatTestJS, AutomaticSemicolonInsertionHeuristic) {
verifyFormat("a\n"
"b;",
" a \n"
" b ;");
verifyFormat("a()\n"
"b;",
" a ()\n"
" b ;");
verifyFormat("a[b]\n"
"c;",
"a [b]\n"
"c ;");
verifyFormat("1\n"
"a;",
"1 \n"
"a ;");
verifyFormat("a\n"
"1;",
"a \n"
"1 ;");
verifyFormat("a\n"
"'x';",
"a \n"
" 'x';");
verifyFormat("a++\n"
"b;",
"a ++\n"
"b ;");
verifyFormat("a\n"
"!b && c;",
"a \n"
" ! b && c;");
verifyFormat("a\n"
"if (1) f();",
" a\n"
" if (1) f();");
verifyFormat("a\n"
"class X {}",
" a\n"
" class X {}");
verifyFormat("var a", "var\n"
"a");
verifyFormat("x instanceof String", "x\n"
"instanceof\n"
"String");
verifyFormat("function f(@Foo bar) {}", "function f(@Foo\n"
" bar) {}");
verifyFormat("a = true\n"
"return 1",
"a = true\n"
" return 1");
verifyFormat("a = 's'\n"
"return 1",
"a = 's'\n"
" return 1");
verifyFormat("a = null\n"
"return 1",
"a = null\n"
" return 1");
// Below "class Y {}" should ideally be on its own line.
verifyFormat(
"x = {\n"
" a: 1\n"
"} class Y {}",
" x = {a : 1}\n"
" class Y { }");
verifyFormat(
"if (x) {\n"
"}\n"
"return 1",
"if (x) {}\n"
" return 1");
verifyFormat(
"if (x) {\n"
"}\n"
"class X {}",
"if (x) {}\n"
" class X {}");
}
TEST_F(FormatTestJS, ImportExportASI) {
verifyFormat(
"import {x} from 'y'\n"
"export function z() {}",
"import {x} from 'y'\n"
" export function z() {}");
// Below "class Y {}" should ideally be on its own line.
verifyFormat(
"export {x} class Y {}",
" export {x}\n"
" class Y {\n}");
verifyFormat(
"if (x) {\n"
"}\n"
"export class Y {}",
"if ( x ) { }\n"
" export class Y {}");
}
TEST_F(FormatTestJS, ClosureStyleCasts) {
verifyFormat("var x = /** @type {foo} */ (bar);");
}
TEST_F(FormatTestJS, TryCatch) {
verifyFormat("try {\n"
" f();\n"
"} catch (e) {\n"
" g();\n"
"} finally {\n"
" h();\n"
"}");
// But, of course, "catch" is a perfectly fine function name in JavaScript.
verifyFormat("someObject.catch();");
verifyFormat("someObject.new();");
verifyFormat("someObject.delete();");
}
TEST_F(FormatTestJS, StringLiteralConcatenation) {
verifyFormat("var literal = 'hello ' +\n"
" 'world';");
}
TEST_F(FormatTestJS, RegexLiteralClassification) {
// Regex literals.
verifyFormat("var regex = /abc/;");
verifyFormat("f(/abc/);");
verifyFormat("f(abc, /abc/);");
verifyFormat("some_map[/abc/];");
verifyFormat("var x = a ? /abc/ : /abc/;");
verifyFormat("for (var i = 0; /abc/.test(s[i]); i++) {\n}");
verifyFormat("var x = !/abc/.test(y);");
verifyFormat("var x = a && /abc/.test(y);");
verifyFormat("var x = a || /abc/.test(y);");
verifyFormat("var x = a + /abc/.search(y);");
verifyFormat("/abc/.search(y);");
verifyFormat("var regexs = {/abc/, /abc/};");
verifyFormat("return /abc/;");
// Not regex literals.
verifyFormat("var a = a / 2 + b / 3;");
verifyFormat("var a = a++ / 2;");
// Prefix unary can operate on regex literals, not that it makes sense.
verifyFormat("var a = ++/a/;");
// This is a known issue, regular expressions are incorrectly detected if
// directly following a closing parenthesis.
verifyFormat("if (foo) / bar /.exec(baz);");
}
TEST_F(FormatTestJS, RegexLiteralSpecialCharacters) {
verifyFormat("var regex = /=/;");
verifyFormat("var regex = /a*/;");
verifyFormat("var regex = /a+/;");
verifyFormat("var regex = /a?/;");
verifyFormat("var regex = /.a./;");
verifyFormat("var regex = /a\\*/;");
verifyFormat("var regex = /^a$/;");
verifyFormat("var regex = /\\/a/;");
verifyFormat("var regex = /(?:x)/;");
verifyFormat("var regex = /x(?=y)/;");
verifyFormat("var regex = /x(?!y)/;");
verifyFormat("var regex = /x|y/;");
verifyFormat("var regex = /a{2}/;");
verifyFormat("var regex = /a{1,3}/;");
verifyFormat("var regex = /[abc]/;");
verifyFormat("var regex = /[^abc]/;");
verifyFormat("var regex = /[\\b]/;");
verifyFormat("var regex = /[/]/;");
verifyFormat("var regex = /[\\/]/;");
verifyFormat("var regex = /\\[/;");
verifyFormat("var regex = /\\\\[/]/;");
verifyFormat("var regex = /}[\"]/;");
verifyFormat("var regex = /}[/\"]/;");
verifyFormat("var regex = /}[\"/]/;");
verifyFormat("var regex = /\\b/;");
verifyFormat("var regex = /\\B/;");
verifyFormat("var regex = /\\d/;");
verifyFormat("var regex = /\\D/;");
verifyFormat("var regex = /\\f/;");
verifyFormat("var regex = /\\n/;");
verifyFormat("var regex = /\\r/;");
verifyFormat("var regex = /\\s/;");
verifyFormat("var regex = /\\S/;");
verifyFormat("var regex = /\\t/;");
verifyFormat("var regex = /\\v/;");
verifyFormat("var regex = /\\w/;");
verifyFormat("var regex = /\\W/;");
verifyFormat("var regex = /a(a)\\1/;");
verifyFormat("var regex = /\\0/;");
verifyFormat("var regex = /\\\\/g;");
verifyFormat("var regex = /\\a\\\\/g;");
verifyFormat("var regex = /\a\\//g;");
verifyFormat("var regex = /a\\//;\n"
"var x = 0;");
verifyFormat("var regex = /'/g;", "var regex = /'/g ;");
verifyFormat("var regex = /'/g; //'", "var regex = /'/g ; //'");
verifyFormat("var regex = /\\/*/;\n"
"var x = 0;",
"var regex = /\\/*/;\n"
"var x=0;");
verifyFormat("var x = /a\\//;", "var x = /a\\// \n;");
verifyFormat("var regex = /\"/;", getGoogleJSStyleWithColumns(16));
verifyFormat("var regex =\n"
" /\"/;",
getGoogleJSStyleWithColumns(15));
verifyFormat("var regex = //\n"
" /a/;");
verifyFormat("var regexs = [\n"
" /d/, //\n"
" /aa/, //\n"
"];");
}
TEST_F(FormatTestJS, RegexLiteralModifiers) {
verifyFormat("var regex = /abc/g;");
verifyFormat("var regex = /abc/i;");
verifyFormat("var regex = /abc/m;");
verifyFormat("var regex = /abc/y;");
}
TEST_F(FormatTestJS, RegexLiteralLength) {
verifyFormat("var regex = /aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/;",
getGoogleJSStyleWithColumns(60));
verifyFormat("var regex =\n"
" /aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/;",
getGoogleJSStyleWithColumns(60));
verifyFormat("var regex = /\\xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/;",
getGoogleJSStyleWithColumns(50));
}
TEST_F(FormatTestJS, RegexLiteralExamples) {
verifyFormat("var regex = search.match(/(?:\?|&)times=([^?&]+)/i);");
}
TEST_F(FormatTestJS, IgnoresMpegTS) {
std::string MpegTS(200, ' ');
MpegTS.replace(0, strlen("nearlyLooks + like + ts + code; "),
"nearlyLooks + like + ts + code; ");
MpegTS[0] = 0x47;
MpegTS[188] = 0x47;
verifyFormat(MpegTS, MpegTS);
}
TEST_F(FormatTestJS, TypeAnnotations) {
verifyFormat("var x: string;");
verifyFormat("var x: {a: string; b: number;} = {};");
verifyFormat("function x(): string {\n return 'x';\n}");
verifyFormat("function x(): {x: string} {\n return {x: 'x'};\n}");
verifyFormat("function x(y: string): string {\n return 'x';\n}");
verifyFormat("for (var y: string in x) {\n x();\n}");
verifyFormat("for (var y: string of x) {\n x();\n}");
verifyFormat("function x(y: {a?: number;} = {}): number {\n"
" return 12;\n"
"}");
verifyFormat("((a: string, b: number): string => a + b);");
verifyFormat("var x: (y: number) => string;");
verifyFormat("var x: P<string, (a: number) => string>;");
verifyFormat("var x = {\n"
" y: function(): z {\n"
" return 1;\n"
" }\n"
"};");
verifyFormat("var x = {\n"
" y: function(): {a: number} {\n"
" return 1;\n"
" }\n"
"};");
verifyFormat("function someFunc(args: string[]):\n"
" {longReturnValue: string[]} {}",
getGoogleJSStyleWithColumns(60));
}
TEST_F(FormatTestJS, UnionIntersectionTypes) {
verifyFormat("let x: A|B = A | B;");
verifyFormat("let x: A&B|C = A & B;");
verifyFormat("let x: Foo<A|B> = new Foo<A|B>();");
verifyFormat("function(x: A|B): C&D {}");
verifyFormat("function(x: A|B = A | B): C&D {}");
verifyFormat("function x(path: number|string) {}");
verifyFormat("function x(): string|number {}");
verifyFormat("type Foo = Bar|Baz;");
verifyFormat("type Foo = Bar<X>|Baz;");
verifyFormat("type Foo = (Bar<X>|Baz);");
verifyFormat("let x: Bar|Baz;");
verifyFormat("let x: Bar<X>|Baz;");
verifyFormat("let x: (Foo|Bar)[];");
}
TEST_F(FormatTestJS, ClassDeclarations) {
verifyFormat("class C {\n x: string = 12;\n}");
verifyFormat("class C {\n x(): string => 12;\n}");
verifyFormat("class C {\n ['x' + 2]: string = 12;\n}");
verifyFormat("class C {\n private x: string = 12;\n}");
verifyFormat("class C {\n private static x: string = 12;\n}");
verifyFormat("class C {\n static x(): string {\n return 'asd';\n }\n}");
verifyFormat("class C extends P implements I {}");
verifyFormat("class C extends p.P implements i.I {}");
verifyFormat("class Test {\n"
" aaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaa: aaaaaaaaaaaaaaaaaaaa):\n"
" aaaaaaaaaaaaaaaaaaaaaa {}\n"
"}");
verifyFormat("foo = class Name {\n"
" constructor() {}\n"
"};");
verifyFormat("foo = class {\n"
" constructor() {}\n"
"};");
verifyFormat("class C {\n"
" x: {y: Z;} = {};\n"
" private y: {y: Z;} = {};\n"
"}");
// ':' is not a type declaration here.
verifyFormat("class X {\n"
" subs = {\n"
" 'b': {\n"
" 'c': 1,\n"
" },\n"
" };\n"
"}");
verifyFormat("@Component({\n"
" moduleId: module.id,\n"
"})\n"
"class SessionListComponent implements OnDestroy, OnInit {\n"
"}");
}
TEST_F(FormatTestJS, InterfaceDeclarations) {
verifyFormat("interface I {\n"
" x: string;\n"
" enum: string[];\n"
" enum?: string[];\n"
"}\n"
"var y;");
// Ensure that state is reset after parsing the interface.
verifyFormat("interface a {}\n"
"export function b() {}\n"
"var x;");
// Arrays of object type literals.
verifyFormat("interface I {\n"
" o: {}[];\n"
"}");
}
TEST_F(FormatTestJS, EnumDeclarations) {
verifyFormat("enum Foo {\n"
" A = 1,\n"
" B\n"
"}");
verifyFormat("export /* somecomment*/ enum Foo {\n"
" A = 1,\n"
" B\n"
"}");
verifyFormat("enum Foo {\n"
" A = 1, // comment\n"
" B\n"
"}\n"
"var x = 1;");
}
TEST_F(FormatTestJS, MetadataAnnotations) {
verifyFormat("@A\nclass C {\n}");
verifyFormat("@A({arg: 'value'})\nclass C {\n}");
verifyFormat("@A\n@B\nclass C {\n}");
verifyFormat("class C {\n @A x: string;\n}");
verifyFormat("class C {\n"
" @A\n"
" private x(): string {\n"
" return 'y';\n"
" }\n"
"}");
verifyFormat("class C {\n"
" private x(@A x: string) {}\n"
"}");
verifyFormat("class X {}\n"
"class Y {}");
}
TEST_F(FormatTestJS, TypeAliases) {
verifyFormat("type X = number;\n"
"class C {}");
verifyFormat("type X<Y> = Z<Y>;");
verifyFormat("type X = {\n"
" y: number\n"
"};\n"
"class C {}");
}
TEST_F(FormatTestJS, Modules) {
verifyFormat("import SomeThing from 'some/module.js';");
verifyFormat("import {X, Y} from 'some/module.js';");
verifyFormat("import a, {X, Y} from 'some/module.js';");
verifyFormat("import {X, Y,} from 'some/module.js';");
verifyFormat("import {X as myLocalX, Y as myLocalY} from 'some/module.js';");
// Ensure Automatic Semicolon Insertion does not break on "as\n".
verifyFormat("import {X as myX} from 'm';", "import {X as\n"
" myX} from 'm';");
verifyFormat("import * as lib from 'some/module.js';");
verifyFormat("var x = {import: 1};\nx.import = 2;");
verifyFormat("export function fn() {\n"
" return 'fn';\n"
"}");
verifyFormat("export function A() {}\n"
"export default function B() {}\n"
"export function C() {}");
verifyFormat("export default () => {\n"
" let x = 1;\n"
" return x;\n"
"}");
verifyFormat("export const x = 12;");
verifyFormat("export default class X {}");
verifyFormat("export {X, Y} from 'some/module.js';");
verifyFormat("export {X, Y,} from 'some/module.js';");
verifyFormat("export {SomeVeryLongExport as X, "
"SomeOtherVeryLongExport as Y} from 'some/module.js';");
// export without 'from' is wrapped.
verifyFormat("export let someRatherLongVariableName =\n"
" someSurprisinglyLongVariable + someOtherRatherLongVar;");
// ... but not if from is just an identifier.
verifyFormat("export {\n"
" from as from,\n"
" someSurprisinglyLongVariable as\n"
" from\n"
"};",
getGoogleJSStyleWithColumns(20));
verifyFormat("export class C {\n"
" x: number;\n"
" y: string;\n"
"}");
verifyFormat("export class X { y: number; }");
verifyFormat("export abstract class X { y: number; }");
verifyFormat("export default class X { y: number }");
verifyFormat("export default function() {\n return 1;\n}");
verifyFormat("export var x = 12;");
verifyFormat("class C {}\n"
"export function f() {}\n"
"var v;");
verifyFormat("export var x: number = 12;");
verifyFormat("export const y = {\n"
" a: 1,\n"
" b: 2\n"
"};");
verifyFormat("export enum Foo {\n"
" BAR,\n"
" // adsdasd\n"
" BAZ\n"
"}");
verifyFormat("export default [\n"
" aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
" bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n"
"];");
verifyFormat("export default [];");
verifyFormat("export default () => {};");
verifyFormat("export interface Foo { foo: number; }\n"
"export class Bar {\n"
" blah(): string {\n"
" return this.blah;\n"
" };\n"
"}");
}
TEST_F(FormatTestJS, ImportWrapping) {
verifyFormat("import {VeryLongImportsAreAnnoying, VeryLongImportsAreAnnoying,"
" VeryLongImportsAreAnnoying, VeryLongImportsAreAnnoying"
"} from 'some/module.js';");
FormatStyle Style = getGoogleJSStyleWithColumns(80);
Style.JavaScriptWrapImports = true;
verifyFormat("import {\n"
" VeryLongImportsAreAnnoying,\n"
" VeryLongImportsAreAnnoying,\n"
" VeryLongImportsAreAnnoying,\n"
"} from 'some/module.js';",
Style);
verifyFormat("import {\n"
" A,\n"
" A,\n"
"} from 'some/module.js';",
Style);
verifyFormat("export {\n"
" A,\n"
" A,\n"
"} from 'some/module.js';",
Style);
}
TEST_F(FormatTestJS, TemplateStrings) {
// Keeps any whitespace/indentation within the template string.
verifyFormat("var x = `hello\n"
" ${name}\n"
" !`;",
"var x = `hello\n"
" ${ name }\n"
" !`;");
verifyFormat("var x =\n"
" `hello ${world}` >= some();",
getGoogleJSStyleWithColumns(34)); // Barely doesn't fit.
verifyFormat("var x = `hello ${world}` >= some();",
getGoogleJSStyleWithColumns(35)); // Barely fits.
verifyFormat("var x = `hellö ${wörld}` >= söme();",
getGoogleJSStyleWithColumns(35)); // Fits due to UTF-8.
verifyFormat("var x = `hello\n"
" ${world}` >=\n"
" some();",
"var x =\n"
" `hello\n"
" ${world}` >= some();",
getGoogleJSStyleWithColumns(21)); // Barely doesn't fit.
verifyFormat("var x = `hello\n"
" ${world}` >= some();",
"var x =\n"
" `hello\n"
" ${world}` >= some();",
getGoogleJSStyleWithColumns(22)); // Barely fits.
verifyFormat("var x =\n"
" `h`;",
getGoogleJSStyleWithColumns(11));
verifyFormat("var x =\n `multi\n line`;", "var x = `multi\n line`;",
getGoogleJSStyleWithColumns(13));
verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
" `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa`);");
// Repro for an obscure width-miscounting issue with template strings.
verifyFormat(
"someLongVariable =\n"
" "
"`${logPrefix[11]}/${logPrefix[12]}/${logPrefix[13]}${logPrefix[14]}`;",
"someLongVariable = "
"`${logPrefix[11]}/${logPrefix[12]}/${logPrefix[13]}${logPrefix[14]}`;");
// Make sure template strings get a proper ColumnWidth assigned, even if they
// are first token in line.
verifyFormat(
"var a = aaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n"
" `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa`;");
// Two template strings.
verifyFormat("var x = `hello` == `hello`;");
// Comments in template strings.
verifyFormat("var x = `//a`;\n"
"var y;",
"var x =\n `//a`;\n"
"var y ;");
verifyFormat("var x = `/*a`;\n"
"var y;",
"var x =\n `/*a`;\n"
"var y;");
// Unterminated string literals in a template string.
verifyFormat("var x = `'`; // comment with matching quote '\n"
"var y;");
verifyFormat("var x = `\"`; // comment with matching quote \"\n"
"var y;");
verifyFormat("it(`'aaaaaaaaaaaaaaa `, aaaaaaaaa);",
"it(`'aaaaaaaaaaaaaaa `, aaaaaaaaa) ;",
getGoogleJSStyleWithColumns(40));
// Backticks in a comment - not a template string.
verifyFormat("var x = 1 // `/*a`;\n"
" ;",
"var x =\n 1 // `/*a`;\n"
" ;");
verifyFormat("/* ` */ var x = 1; /* ` */", "/* ` */ var x\n= 1; /* ` */");
// Comment spans multiple template strings.
verifyFormat("var x = `/*a`;\n"
"var y = ` */ `;",
"var x =\n `/*a`;\n"
"var y =\n ` */ `;");
// Escaped backtick.
verifyFormat("var x = ` \\` a`;\n"
"var y;",
"var x = ` \\` a`;\n"
"var y;");
// Escaped dollar.
verifyFormat("var x = ` \\${foo}`;\n");
}
TEST_F(FormatTestJS, TemplateStringASI) {
verifyFormat("var x = `hello${world}`;", "var x = `hello${\n"
" world\n"
"}`;");
}
TEST_F(FormatTestJS, NestedTemplateStrings) {
verifyFormat(
"var x = `<ul>${xs.map(x => `<li>${x}</li>`).join('\\n')}</ul>`;");
verifyFormat("var x = `he${({text: 'll'}.text)}o`;");
// Crashed at some point.
verifyFormat("}");
}
TEST_F(FormatTestJS, TaggedTemplateStrings) {
verifyFormat("var x = html`<ul>`;");
}
TEST_F(FormatTestJS, CastSyntax) {
verifyFormat("var x = <type>foo;");
verifyFormat("var x = foo as type;");
verifyFormat("let x = (a + b) as\n"
" LongTypeIsLong;",
getGoogleJSStyleWithColumns(20));
verifyFormat("foo = <Bar[]>[\n"
" 1, //\n"
" 2\n"
"];");
verifyFormat("var x = [{x: 1} as type];");
verifyFormat("x = x as [a, b];");
verifyFormat("x = x as {a: string};");
verifyFormat("x = x as (string);");
verifyFormat("x = x! as (string);");
}
TEST_F(FormatTestJS, TypeArguments) {
verifyFormat("class X<Y> {}");
verifyFormat("new X<Y>();");
verifyFormat("foo<Y>(a);");
verifyFormat("var x: X<Y>[];");
verifyFormat("class C extends D<E> implements F<G>, H<I> {}");
verifyFormat("function f(a: List<any> = null) {}");
verifyFormat("function f(): List<any> {}");
verifyFormat("function aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa():\n"
" bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb {}");
verifyFormat("function aaaaaaaaaa(\n"
" aaaaaaaaaaaaaaaa: aaaaaaaaaaaaaaaaaaa,\n"
" aaaaaaaaaaaaaaaa: aaaaaaaaaaaaaaaaaaa):\n"
" aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa {}");
}
TEST_F(FormatTestJS, UserDefinedTypeGuards) {
verifyFormat(
"function foo(check: Object):\n"
" check is {foo: string, bar: string, baz: string, foobar: string} {\n"
" return 'bar' in check;\n"
"}\n");
}
TEST_F(FormatTestJS, OptionalTypes) {
verifyFormat("function x(a?: b, c?, d?) {}");
verifyFormat("class X {\n"
" y?: z;\n"
" z?;\n"
"}");
verifyFormat("interface X {\n"
" y?(): z;\n"
"}");
verifyFormat("constructor({aa}: {\n"
" aa?: string,\n"
" aaaaaaaa?: string,\n"
" aaaaaaaaaaaaaaa?: boolean,\n"
" aaaaaa?: List<string>\n"
"}) {}");
}
TEST_F(FormatTestJS, IndexSignature) {
verifyFormat("var x: {[k: string]: v};");
}
TEST_F(FormatTestJS, WrapAfterParen) {
verifyFormat("xxxxxxxxxxx(\n"
" aaa, aaa);",
getGoogleJSStyleWithColumns(20));
verifyFormat("xxxxxxxxxxx(\n"
" aaa, aaa, aaa,\n"
" aaa, aaa, aaa);",
getGoogleJSStyleWithColumns(20));
verifyFormat("xxxxxxxxxxx(\n"
" aaaaaaaaaaaaaaaaaaaaaaaa,\n"
" function(x) {\n"
" y(); //\n"
" });",
getGoogleJSStyleWithColumns(40));
verifyFormat("while (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa &&\n"
" bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}");
}
TEST_F(FormatTestJS, JSDocAnnotations) {
verifyFormat("/**\n"
" * @export {this.is.a.long.path.to.a.Type}\n"
" */",
"/**\n"
" * @export {this.is.a.long.path.to.a.Type}\n"
" */",
getGoogleJSStyleWithColumns(20));
}
TEST_F(FormatTestJS, RequoteStringsSingle) {
verifyFormat("var x = 'foo';", "var x = \"foo\";");
verifyFormat("var x = 'fo\\'o\\'';", "var x = \"fo'o'\";");
verifyFormat("var x = 'fo\\'o\\'';", "var x = \"fo\\'o'\";");
verifyFormat(
"var x =\n"
" 'foo\\'';",
// Code below is 15 chars wide, doesn't fit into the line with the
// \ escape added.
"var x = \"foo'\";", getGoogleJSStyleWithColumns(15));
// Removes no-longer needed \ escape from ".
verifyFormat("var x = 'fo\"o';", "var x = \"fo\\\"o\";");
// Code below fits into 15 chars *after* removing the \ escape.
verifyFormat("var x = 'fo\"o';", "var x = \"fo\\\"o\";",
getGoogleJSStyleWithColumns(15));
verifyFormat("// clang-format off\n"
"let x = \"double\";\n"
"// clang-format on\n"
"let x = 'single';\n",
"// clang-format off\n"
"let x = \"double\";\n"
"// clang-format on\n"
"let x = \"single\";\n");
}
TEST_F(FormatTestJS, RequoteAndIndent) {
verifyFormat("let x = someVeryLongFunctionThatGoesOnAndOn(\n"
" 'double quoted string that needs wrapping');",
"let x = someVeryLongFunctionThatGoesOnAndOn("
"\"double quoted string that needs wrapping\");");
verifyFormat("let x =\n"
" 'foo\\'oo';\n"
"let x =\n"
" 'foo\\'oo';",
"let x=\"foo'oo\";\n"
"let x=\"foo'oo\";",
getGoogleJSStyleWithColumns(15));
}
TEST_F(FormatTestJS, RequoteStringsDouble) {
FormatStyle DoubleQuotes = getGoogleStyle(FormatStyle::LK_JavaScript);
DoubleQuotes.JavaScriptQuotes = FormatStyle::JSQS_Double;
verifyFormat("var x = \"foo\";", DoubleQuotes);
verifyFormat("var x = \"foo\";", "var x = 'foo';", DoubleQuotes);
verifyFormat("var x = \"fo'o\";", "var x = 'fo\\'o';", DoubleQuotes);
}
TEST_F(FormatTestJS, RequoteStringsLeave) {
FormatStyle LeaveQuotes = getGoogleStyle(FormatStyle::LK_JavaScript);
LeaveQuotes.JavaScriptQuotes = FormatStyle::JSQS_Leave;
verifyFormat("var x = \"foo\";", LeaveQuotes);
verifyFormat("var x = 'foo';", LeaveQuotes);
}
TEST_F(FormatTestJS, SupportShebangLines) {
verifyFormat("#!/usr/bin/env node\n"
"var x = hello();",
"#!/usr/bin/env node\n"
"var x = hello();");
}
TEST_F(FormatTestJS, NonNullAssertionOperator) {
verifyFormat("let x = foo!.bar();\n");
verifyFormat("let x = foo ? bar! : baz;\n");
verifyFormat("let x = !foo;\n");
verifyFormat("let x = foo[0]!;\n");
verifyFormat("let x = (foo)!;\n");
verifyFormat("let x = foo! - 1;\n");
verifyFormat("let x = {foo: 1}!;\n");
}
TEST_F(FormatTestJS, Conditional) {
verifyFormat("y = x ? 1 : 2;");
verifyFormat("x ? 1 : 2;");
verifyFormat("class Foo {\n"
" field = true ? 1 : 2;\n"
" method(a = true ? 1 : 2) {}\n"
"}");
}
TEST_F(FormatTestJS, ImportComments) {
verifyFormat("import {x} from 'x'; // from some location",
getGoogleJSStyleWithColumns(25));
verifyFormat("// taze: x from 'location'", getGoogleJSStyleWithColumns(10));
}
} // end namespace tooling
} // end namespace clang