1 //===- unittest/Format/FormatTestJS.cpp - Formatting unit tests for JS ----===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "FormatTestUtils.h" 11 #include "clang/Format/Format.h" 12 #include "llvm/Support/Debug.h" 13 #include "gtest/gtest.h" 14 15 #define DEBUG_TYPE "format-test" 16 17 namespace clang { 18 namespace format { 19 20 class FormatTestJS : public ::testing::Test { 21 protected: 22 static std::string format(llvm::StringRef Code, unsigned Offset, 23 unsigned Length, const FormatStyle &Style) { 24 DEBUG(llvm::errs() << "---\n"); 25 DEBUG(llvm::errs() << Code << "\n\n"); 26 std::vector<tooling::Range> Ranges(1, tooling::Range(Offset, Length)); 27 bool IncompleteFormat = false; 28 tooling::Replacements Replaces = 29 reformat(Style, Code, Ranges, "<stdin>", &IncompleteFormat); 30 EXPECT_FALSE(IncompleteFormat); 31 std::string Result = applyAllReplacements(Code, Replaces); 32 EXPECT_NE("", Result); 33 DEBUG(llvm::errs() << "\n" << Result << "\n\n"); 34 return Result; 35 } 36 37 static std::string format( 38 llvm::StringRef Code, 39 const FormatStyle &Style = getGoogleStyle(FormatStyle::LK_JavaScript)) { 40 return format(Code, 0, Code.size(), Style); 41 } 42 43 static FormatStyle getGoogleJSStyleWithColumns(unsigned ColumnLimit) { 44 FormatStyle Style = getGoogleStyle(FormatStyle::LK_JavaScript); 45 Style.ColumnLimit = ColumnLimit; 46 return Style; 47 } 48 49 static void verifyFormat( 50 llvm::StringRef Code, 51 const FormatStyle &Style = getGoogleStyle(FormatStyle::LK_JavaScript)) { 52 std::string Result = format(test::messUp(Code), Style); 53 EXPECT_EQ(Code.str(), Result) << "Formatted:\n" << Result; 54 } 55 56 static void verifyFormat( 57 llvm::StringRef Expected, 58 llvm::StringRef Code, 59 const FormatStyle &Style = getGoogleStyle(FormatStyle::LK_JavaScript)) { 60 std::string Result = format(Code, Style); 61 EXPECT_EQ(Expected.str(), Result) << "Formatted:\n" << Result; 62 } 63 }; 64 65 TEST_F(FormatTestJS, UnderstandsJavaScriptOperators) { 66 verifyFormat("a == = b;"); 67 verifyFormat("a != = b;"); 68 69 verifyFormat("a === b;"); 70 verifyFormat("aaaaaaa ===\n b;", getGoogleJSStyleWithColumns(10)); 71 verifyFormat("a !== b;"); 72 verifyFormat("aaaaaaa !==\n b;", getGoogleJSStyleWithColumns(10)); 73 verifyFormat("if (a + b + c +\n" 74 " d !==\n" 75 " e + f + g)\n" 76 " q();", 77 getGoogleJSStyleWithColumns(20)); 78 79 verifyFormat("a >> >= b;"); 80 81 verifyFormat("a >>> b;"); 82 verifyFormat("aaaaaaa >>>\n b;", getGoogleJSStyleWithColumns(10)); 83 verifyFormat("a >>>= b;"); 84 verifyFormat("aaaaaaa >>>=\n b;", getGoogleJSStyleWithColumns(10)); 85 verifyFormat("if (a + b + c +\n" 86 " d >>>\n" 87 " e + f + g)\n" 88 " q();", 89 getGoogleJSStyleWithColumns(20)); 90 verifyFormat("var x = aaaaaaaaaa ?\n" 91 " bbbbbb :\n" 92 " ccc;", 93 getGoogleJSStyleWithColumns(20)); 94 95 verifyFormat("var b = a.map((x) => x + 1);"); 96 verifyFormat("return ('aaa') in bbbb;"); 97 verifyFormat("var x = aaaaaaaaaaaaaaaaaaaaaaaaa() in\n" 98 " aaaa.aaaaaa.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;"); 99 FormatStyle Style = getGoogleJSStyleWithColumns(80); 100 Style.AlignOperands = true; 101 verifyFormat("var x = aaaaaaaaaaaaaaaaaaaaaaaaa() in\n" 102 " aaaa.aaaaaa.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;", 103 Style); 104 Style.BreakBeforeBinaryOperators = FormatStyle::BOS_All; 105 verifyFormat("var x = aaaaaaaaaaaaaaaaaaaaaaaaa()\n" 106 " in aaaa.aaaaaa.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;", 107 Style); 108 109 // ES6 spread operator. 110 verifyFormat("someFunction(...a);"); 111 verifyFormat("var x = [1, ...a, 2];"); 112 } 113 114 TEST_F(FormatTestJS, UnderstandsAmpAmp) { 115 verifyFormat("e && e.SomeFunction();"); 116 } 117 118 TEST_F(FormatTestJS, LiteralOperatorsCanBeKeywords) { 119 verifyFormat("not.and.or.not_eq = 1;"); 120 } 121 122 TEST_F(FormatTestJS, ReservedWords) { 123 // JavaScript reserved words (aka keywords) are only illegal when used as 124 // Identifiers, but are legal as IdentifierNames. 125 verifyFormat("x.class.struct = 1;"); 126 verifyFormat("x.case = 1;"); 127 verifyFormat("x.interface = 1;"); 128 verifyFormat("x = {\n" 129 " a: 12,\n" 130 " interface: 1,\n" 131 " switch: 1,\n" 132 "};"); 133 verifyFormat("var struct = 2;"); 134 verifyFormat("var union = 2;"); 135 } 136 137 TEST_F(FormatTestJS, CppKeywords) { 138 // Make sure we don't mess stuff up because of C++ keywords. 139 verifyFormat("return operator && (aa);"); 140 } 141 142 TEST_F(FormatTestJS, ES6DestructuringAssignment) { 143 verifyFormat("var [a, b, c] = [1, 2, 3];"); 144 verifyFormat("let [a, b, c] = [1, 2, 3];"); 145 verifyFormat("var {a, b} = {a: 1, b: 2};"); 146 verifyFormat("let {a, b} = {a: 1, b: 2};"); 147 } 148 149 TEST_F(FormatTestJS, ContainerLiterals) { 150 verifyFormat("var x = {y: function(a) { return a; }};"); 151 verifyFormat("return {\n" 152 " link: function() {\n" 153 " f(); //\n" 154 " }\n" 155 "};"); 156 verifyFormat("return {\n" 157 " a: a,\n" 158 " link: function() {\n" 159 " f(); //\n" 160 " }\n" 161 "};"); 162 verifyFormat("return {\n" 163 " a: a,\n" 164 " link: function() {\n" 165 " f(); //\n" 166 " },\n" 167 " link: function() {\n" 168 " f(); //\n" 169 " }\n" 170 "};"); 171 verifyFormat("var stuff = {\n" 172 " // comment for update\n" 173 " update: false,\n" 174 " // comment for modules\n" 175 " modules: false,\n" 176 " // comment for tasks\n" 177 " tasks: false\n" 178 "};"); 179 verifyFormat("return {\n" 180 " 'finish':\n" 181 " //\n" 182 " a\n" 183 "};"); 184 verifyFormat("var obj = {\n" 185 " fooooooooo: function(x) {\n" 186 " return x.zIsTooLongForOneLineWithTheDeclarationLine();\n" 187 " }\n" 188 "};"); 189 // Simple object literal, as opposed to enum style below. 190 verifyFormat("var obj = {a: 123};"); 191 // Enum style top level assignment. 192 verifyFormat("X = {\n a: 123\n};"); 193 verifyFormat("X.Y = {\n a: 123\n};"); 194 // But only on the top level, otherwise its a plain object literal assignment. 195 verifyFormat("function x() {\n" 196 " y = {z: 1};\n" 197 "}"); 198 verifyFormat("x = foo && {a: 123};"); 199 200 // Arrow functions in object literals. 201 verifyFormat("var x = {y: (a) => { return a; }};"); 202 verifyFormat("var x = {y: (a) => a};"); 203 204 // Computed keys. 205 verifyFormat("var x = {[a]: 1, b: 2, [c]: 3};"); 206 verifyFormat("var x = {\n" 207 " [a]: 1,\n" 208 " b: 2,\n" 209 " [c]: 3,\n" 210 "};"); 211 212 // Object literals can leave out labels. 213 verifyFormat("f({a}, () => {\n" 214 " g(); //\n" 215 "});"); 216 217 // Keys can be quoted. 218 verifyFormat("var x = {\n" 219 " a: a,\n" 220 " b: b,\n" 221 " 'c': c,\n" 222 "};"); 223 } 224 225 TEST_F(FormatTestJS, MethodsInObjectLiterals) { 226 verifyFormat("var o = {\n" 227 " value: 'test',\n" 228 " get value() { // getter\n" 229 " return this.value;\n" 230 " }\n" 231 "};"); 232 verifyFormat("var o = {\n" 233 " value: 'test',\n" 234 " set value(val) { // setter\n" 235 " this.value = val;\n" 236 " }\n" 237 "};"); 238 verifyFormat("var o = {\n" 239 " value: 'test',\n" 240 " someMethod(val) { // method\n" 241 " doSomething(this.value + val);\n" 242 " }\n" 243 "};"); 244 verifyFormat("var o = {\n" 245 " someMethod(val) { // method\n" 246 " doSomething(this.value + val);\n" 247 " },\n" 248 " someOtherMethod(val) { // method\n" 249 " doSomething(this.value + val);\n" 250 " }\n" 251 "};"); 252 } 253 254 TEST_F(FormatTestJS, SpacesInContainerLiterals) { 255 verifyFormat("var arr = [1, 2, 3];"); 256 verifyFormat("f({a: 1, b: 2, c: 3});"); 257 258 verifyFormat("var object_literal_with_long_name = {\n" 259 " a: 'aaaaaaaaaaaaaaaaaa',\n" 260 " b: 'bbbbbbbbbbbbbbbbbb'\n" 261 "};"); 262 263 verifyFormat("f({a: 1, b: 2, c: 3});", 264 getChromiumStyle(FormatStyle::LK_JavaScript)); 265 verifyFormat("f({'a': [{}]});"); 266 } 267 268 TEST_F(FormatTestJS, SingleQuotedStrings) { 269 verifyFormat("this.function('', true);"); 270 } 271 272 TEST_F(FormatTestJS, GoogScopes) { 273 verifyFormat("goog.scope(function() {\n" 274 "var x = a.b;\n" 275 "var y = c.d;\n" 276 "}); // goog.scope"); 277 verifyFormat("goog.scope(function() {\n" 278 "// test\n" 279 "var x = 0;\n" 280 "// test\n" 281 "});"); 282 } 283 284 TEST_F(FormatTestJS, GoogModules) { 285 verifyFormat("goog.module('this.is.really.absurdly.long');", 286 getGoogleJSStyleWithColumns(40)); 287 verifyFormat("goog.require('this.is.really.absurdly.long');", 288 getGoogleJSStyleWithColumns(40)); 289 verifyFormat("goog.provide('this.is.really.absurdly.long');", 290 getGoogleJSStyleWithColumns(40)); 291 verifyFormat("var long = goog.require('this.is.really.absurdly.long');", 292 getGoogleJSStyleWithColumns(40)); 293 verifyFormat("goog.setTestOnly('this.is.really.absurdly.long');", 294 getGoogleJSStyleWithColumns(40)); 295 verifyFormat("goog.forwardDeclare('this.is.really.absurdly.long');", 296 getGoogleJSStyleWithColumns(40)); 297 298 // These should be wrapped normally. 299 verifyFormat( 300 "var MyLongClassName =\n" 301 " goog.module.get('my.long.module.name.followedBy.MyLongClassName');"); 302 } 303 304 TEST_F(FormatTestJS, FormatsFreestandingFunctions) { 305 verifyFormat("function outer1(a, b) {\n" 306 " function inner1(a, b) { return a; }\n" 307 " inner1(a, b);\n" 308 "}\n" 309 "function outer2(a, b) {\n" 310 " function inner2(a, b) { return a; }\n" 311 " inner2(a, b);\n" 312 "}"); 313 verifyFormat("function f() {}"); 314 } 315 316 TEST_F(FormatTestJS, ArrayLiterals) { 317 verifyFormat("var aaaaa: List<SomeThing> =\n" 318 " [new SomeThingAAAAAAAAAAAA(), new SomeThingBBBBBBBBB()];"); 319 verifyFormat("return [\n" 320 " aaaaaaaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbbbbbbbbbbbbbbbbbbbb,\n" 321 " ccccccccccccccccccccccccccc\n" 322 "];"); 323 verifyFormat("return [\n" 324 " aaaa().bbbbbbbb('A'),\n" 325 " aaaa().bbbbbbbb('B'),\n" 326 " aaaa().bbbbbbbb('C'),\n" 327 "];"); 328 verifyFormat("var someVariable = SomeFunction([\n" 329 " aaaaaaaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbbbbbbbbbbbbbbbbbbbb,\n" 330 " ccccccccccccccccccccccccccc\n" 331 "]);"); 332 verifyFormat("var someVariable = SomeFunction([\n" 333 " [aaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbbbbbbbbbbbbbbb],\n" 334 "]);", 335 getGoogleJSStyleWithColumns(51)); 336 verifyFormat("var someVariable = SomeFunction(aaaa, [\n" 337 " aaaaaaaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbbbbbbbbbbbbbbbbbbbb,\n" 338 " ccccccccccccccccccccccccccc\n" 339 "]);"); 340 verifyFormat("var someVariable = SomeFunction(\n" 341 " aaaa,\n" 342 " [\n" 343 " aaaaaaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbbbbbbbbbbbbbbbbbbb,\n" 344 " cccccccccccccccccccccccccc\n" 345 " ],\n" 346 " aaaa);"); 347 verifyFormat("var aaaa = aaaaa || // wrap\n" 348 " [];"); 349 350 verifyFormat("someFunction([], {a: a});"); 351 } 352 353 TEST_F(FormatTestJS, ColumnLayoutForArrayLiterals) { 354 verifyFormat("var array = [\n" 355 " a, a, a, a, a, a, a, a, a, a, a, a, a, a, a,\n" 356 " a, a, a, a, a, a, a, a, a, a, a, a, a, a, a,\n" 357 "];"); 358 verifyFormat("var array = someFunction([\n" 359 " a, a, a, a, a, a, a, a, a, a, a, a, a, a, a,\n" 360 " a, a, a, a, a, a, a, a, a, a, a, a, a, a, a,\n" 361 "]);"); 362 } 363 364 TEST_F(FormatTestJS, FunctionLiterals) { 365 verifyFormat("doFoo(function() {});"); 366 verifyFormat("doFoo(function() { return 1; });"); 367 verifyFormat("var func = function() {\n" 368 " return 1;\n" 369 "};"); 370 verifyFormat("var func = //\n" 371 " function() {\n" 372 " return 1;\n" 373 "};"); 374 verifyFormat("return {\n" 375 " body: {\n" 376 " setAttribute: function(key, val) { this[key] = val; },\n" 377 " getAttribute: function(key) { return this[key]; },\n" 378 " style: {direction: ''}\n" 379 " }\n" 380 "};"); 381 verifyFormat("abc = xyz ? function() {\n" 382 " return 1;\n" 383 "} : function() {\n" 384 " return -1;\n" 385 "};"); 386 387 verifyFormat("var closure = goog.bind(\n" 388 " function() { // comment\n" 389 " foo();\n" 390 " bar();\n" 391 " },\n" 392 " this, arg1IsReallyLongAndNeeedsLineBreaks,\n" 393 " arg3IsReallyLongAndNeeedsLineBreaks);"); 394 verifyFormat("var closure = goog.bind(function() { // comment\n" 395 " foo();\n" 396 " bar();\n" 397 "}, this);"); 398 verifyFormat("return {\n" 399 " a: 'E',\n" 400 " b: function() {\n" 401 " return function() {\n" 402 " f(); //\n" 403 " };\n" 404 " }\n" 405 "};"); 406 verifyFormat("{\n" 407 " var someVariable = function(x) {\n" 408 " return x.zIsTooLongForOneLineWithTheDeclarationLine();\n" 409 " };\n" 410 "}"); 411 verifyFormat("someLooooooooongFunction(\n" 412 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 413 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 414 " function(aaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n" 415 " // code\n" 416 " });"); 417 418 verifyFormat("f({a: function() { return 1; }});", 419 getGoogleJSStyleWithColumns(33)); 420 verifyFormat("f({\n" 421 " a: function() { return 1; }\n" 422 "});", 423 getGoogleJSStyleWithColumns(32)); 424 425 verifyFormat("return {\n" 426 " a: function SomeFunction() {\n" 427 " // ...\n" 428 " return 1;\n" 429 " }\n" 430 "};"); 431 verifyFormat("this.someObject.doSomething(aaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 432 " .then(goog.bind(function(aaaaaaaaaaa) {\n" 433 " someFunction();\n" 434 " someFunction();\n" 435 " }, this), aaaaaaaaaaaaaaaaa);"); 436 437 verifyFormat("someFunction(goog.bind(function() {\n" 438 " doSomething();\n" 439 " doSomething();\n" 440 "}, this), goog.bind(function() {\n" 441 " doSomething();\n" 442 " doSomething();\n" 443 "}, this));"); 444 445 // FIXME: This is bad, we should be wrapping before "function() {". 446 verifyFormat("someFunction(function() {\n" 447 " doSomething(); // break\n" 448 "})\n" 449 " .doSomethingElse(\n" 450 " // break\n" 451 " );"); 452 } 453 454 TEST_F(FormatTestJS, InliningFunctionLiterals) { 455 FormatStyle Style = getGoogleStyle(FormatStyle::LK_JavaScript); 456 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_Inline; 457 verifyFormat("var func = function() {\n" 458 " return 1;\n" 459 "};", 460 Style); 461 verifyFormat("var func = doSomething(function() { return 1; });", Style); 462 verifyFormat("var outer = function() {\n" 463 " var inner = function() { return 1; }\n" 464 "};", 465 Style); 466 verifyFormat("function outer1(a, b) {\n" 467 " function inner1(a, b) { return a; }\n" 468 "}", 469 Style); 470 471 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_All; 472 verifyFormat("var func = function() { return 1; };", Style); 473 verifyFormat("var func = doSomething(function() { return 1; });", Style); 474 verifyFormat( 475 "var outer = function() { var inner = function() { return 1; } };", 476 Style); 477 verifyFormat("function outer1(a, b) {\n" 478 " function inner1(a, b) { return a; }\n" 479 "}", 480 Style); 481 482 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_None; 483 verifyFormat("var func = function() {\n" 484 " return 1;\n" 485 "};", 486 Style); 487 verifyFormat("var func = doSomething(function() {\n" 488 " return 1;\n" 489 "});", 490 Style); 491 verifyFormat("var outer = function() {\n" 492 " var inner = function() {\n" 493 " return 1;\n" 494 " }\n" 495 "};", 496 Style); 497 verifyFormat("function outer1(a, b) {\n" 498 " function inner1(a, b) {\n" 499 " return a;\n" 500 " }\n" 501 "}", 502 Style); 503 504 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_Empty; 505 verifyFormat("var func = function() {\n" 506 " return 1;\n" 507 "};", 508 Style); 509 } 510 511 TEST_F(FormatTestJS, MultipleFunctionLiterals) { 512 verifyFormat("promise.then(\n" 513 " function success() {\n" 514 " doFoo();\n" 515 " doBar();\n" 516 " },\n" 517 " function error() {\n" 518 " doFoo();\n" 519 " doBaz();\n" 520 " },\n" 521 " []);\n"); 522 verifyFormat("promise.then(\n" 523 " function success() {\n" 524 " doFoo();\n" 525 " doBar();\n" 526 " },\n" 527 " [],\n" 528 " function error() {\n" 529 " doFoo();\n" 530 " doBaz();\n" 531 " });\n"); 532 verifyFormat("promise.then(\n" 533 " [],\n" 534 " function success() {\n" 535 " doFoo();\n" 536 " doBar();\n" 537 " },\n" 538 " function error() {\n" 539 " doFoo();\n" 540 " doBaz();\n" 541 " });\n"); 542 543 verifyFormat("getSomeLongPromise()\n" 544 " .then(function(value) { body(); })\n" 545 " .thenCatch(function(error) {\n" 546 " body();\n" 547 " body();\n" 548 " });"); 549 verifyFormat("getSomeLongPromise()\n" 550 " .then(function(value) {\n" 551 " body();\n" 552 " body();\n" 553 " })\n" 554 " .thenCatch(function(error) {\n" 555 " body();\n" 556 " body();\n" 557 " });"); 558 559 verifyFormat("getSomeLongPromise()\n" 560 " .then(function(value) { body(); })\n" 561 " .thenCatch(function(error) { body(); });"); 562 563 verifyFormat("return [aaaaaaaaaaaaaaaaaaaaaa]\n" 564 " .aaaaaaa(function() {\n" 565 " //\n" 566 " })\n" 567 " .bbbbbb();"); 568 } 569 570 TEST_F(FormatTestJS, ArrowFunctions) { 571 verifyFormat("var x = (a) => {\n" 572 " return a;\n" 573 "};"); 574 verifyFormat("var x = (a) => {\n" 575 " function y() { return 42; }\n" 576 " return a;\n" 577 "};"); 578 verifyFormat("var x = (a: type): {some: type} => {\n" 579 " return a;\n" 580 "};"); 581 verifyFormat("var x = (a) => a;"); 582 verifyFormat("return () => [];"); 583 verifyFormat("var aaaaaaaaaaaaaaaaaaaa = {\n" 584 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa:\n" 585 " (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 586 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) =>\n" 587 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 588 "};"); 589 verifyFormat("var a = a.aaaaaaa(\n" 590 " (a: a) => aaaaaaaaaaaaaaaaaaaaaaaaa(bbbbbbbbb) &&\n" 591 " aaaaaaaaaaaaaaaaaaaaaaaaa(bbbbbbb));"); 592 verifyFormat("var a = a.aaaaaaa(\n" 593 " (a: a) => aaaaaaaaaaaaaaaaaaaaa(bbbbbbbbb) ?\n" 594 " aaaaaaaaaaaaaaaaaaaaa(bbbbbbb) :\n" 595 " aaaaaaaaaaaaaaaaaaaaa(bbbbbbb));"); 596 597 // FIXME: This is bad, we should be wrapping before "() => {". 598 verifyFormat("someFunction(() => {\n" 599 " doSomething(); // break\n" 600 "})\n" 601 " .doSomethingElse(\n" 602 " // break\n" 603 " );"); 604 } 605 606 TEST_F(FormatTestJS, ReturnStatements) { 607 verifyFormat("function() {\n" 608 " return [hello, world];\n" 609 "}"); 610 } 611 612 TEST_F(FormatTestJS, ForLoops) { 613 verifyFormat("for (var i in [2, 3]) {\n" 614 "}"); 615 verifyFormat("for (var i of [2, 3]) {\n" 616 "}"); 617 verifyFormat("for (let {a, b} of x) {\n" 618 "}"); 619 verifyFormat("for (let {a, b} in x) {\n" 620 "}"); 621 } 622 623 TEST_F(FormatTestJS, WrapRespectsAutomaticSemicolonInsertion) { 624 // The following statements must not wrap, as otherwise the program meaning 625 // would change due to automatic semicolon insertion. 626 // See http://www.ecma-international.org/ecma-262/5.1/#sec-7.9.1. 627 verifyFormat("return aaaaa;", getGoogleJSStyleWithColumns(10)); 628 verifyFormat("continue aaaaa;", getGoogleJSStyleWithColumns(10)); 629 verifyFormat("break aaaaa;", getGoogleJSStyleWithColumns(10)); 630 verifyFormat("throw aaaaa;", getGoogleJSStyleWithColumns(10)); 631 verifyFormat("aaaaaaaaa++;", getGoogleJSStyleWithColumns(10)); 632 verifyFormat("aaaaaaaaa--;", getGoogleJSStyleWithColumns(10)); 633 verifyFormat("return [\n" 634 " aaa\n" 635 "];", 636 getGoogleJSStyleWithColumns(12)); 637 } 638 639 TEST_F(FormatTestJS, AutomaticSemicolonInsertionHeuristic) { 640 verifyFormat("a\n" 641 "b;", 642 " a \n" 643 " b ;"); 644 verifyFormat("a()\n" 645 "b;", 646 " a ()\n" 647 " b ;"); 648 verifyFormat("a[b]\n" 649 "c;", 650 "a [b]\n" 651 "c ;"); 652 verifyFormat("1\n" 653 "a;", 654 "1 \n" 655 "a ;"); 656 verifyFormat("a\n" 657 "1;", 658 "a \n" 659 "1 ;"); 660 verifyFormat("a\n" 661 "'x';", 662 "a \n" 663 " 'x';"); 664 verifyFormat("a++\n" 665 "b;", 666 "a ++\n" 667 "b ;"); 668 verifyFormat("a\n" 669 "!b && c;", 670 "a \n" 671 " ! b && c;"); 672 verifyFormat("a\n" 673 "if (1) f();", 674 " a\n" 675 " if (1) f();"); 676 verifyFormat("a\n" 677 "class X {}", 678 " a\n" 679 " class X {}"); 680 verifyFormat("var a", "var\n" 681 "a"); 682 verifyFormat("x instanceof String", "x\n" 683 "instanceof\n" 684 "String"); 685 } 686 687 TEST_F(FormatTestJS, ClosureStyleCasts) { 688 verifyFormat("var x = /** @type {foo} */ (bar);"); 689 } 690 691 TEST_F(FormatTestJS, TryCatch) { 692 verifyFormat("try {\n" 693 " f();\n" 694 "} catch (e) {\n" 695 " g();\n" 696 "} finally {\n" 697 " h();\n" 698 "}"); 699 700 // But, of course, "catch" is a perfectly fine function name in JavaScript. 701 verifyFormat("someObject.catch();"); 702 verifyFormat("someObject.new();"); 703 verifyFormat("someObject.delete();"); 704 } 705 706 TEST_F(FormatTestJS, StringLiteralConcatenation) { 707 verifyFormat("var literal = 'hello ' +\n" 708 " 'world';"); 709 } 710 711 TEST_F(FormatTestJS, RegexLiteralClassification) { 712 // Regex literals. 713 verifyFormat("var regex = /abc/;"); 714 verifyFormat("f(/abc/);"); 715 verifyFormat("f(abc, /abc/);"); 716 verifyFormat("some_map[/abc/];"); 717 verifyFormat("var x = a ? /abc/ : /abc/;"); 718 verifyFormat("for (var i = 0; /abc/.test(s[i]); i++) {\n}"); 719 verifyFormat("var x = !/abc/.test(y);"); 720 verifyFormat("var x = a && /abc/.test(y);"); 721 verifyFormat("var x = a || /abc/.test(y);"); 722 verifyFormat("var x = a + /abc/.search(y);"); 723 verifyFormat("/abc/.search(y);"); 724 verifyFormat("var regexs = {/abc/, /abc/};"); 725 verifyFormat("return /abc/;"); 726 727 // Not regex literals. 728 verifyFormat("var a = a / 2 + b / 3;"); 729 verifyFormat("var a = a++ / 2;"); 730 // Prefix unary can operate on regex literals, not that it makes sense. 731 verifyFormat("var a = ++/a/;"); 732 733 // This is a known issue, regular expressions are incorrectly detected if 734 // directly following a closing parenthesis. 735 verifyFormat("if (foo) / bar /.exec(baz);"); 736 } 737 738 TEST_F(FormatTestJS, RegexLiteralSpecialCharacters) { 739 verifyFormat("var regex = /=/;"); 740 verifyFormat("var regex = /a*/;"); 741 verifyFormat("var regex = /a+/;"); 742 verifyFormat("var regex = /a?/;"); 743 verifyFormat("var regex = /.a./;"); 744 verifyFormat("var regex = /a\\*/;"); 745 verifyFormat("var regex = /^a$/;"); 746 verifyFormat("var regex = /\\/a/;"); 747 verifyFormat("var regex = /(?:x)/;"); 748 verifyFormat("var regex = /x(?=y)/;"); 749 verifyFormat("var regex = /x(?!y)/;"); 750 verifyFormat("var regex = /x|y/;"); 751 verifyFormat("var regex = /a{2}/;"); 752 verifyFormat("var regex = /a{1,3}/;"); 753 754 verifyFormat("var regex = /[abc]/;"); 755 verifyFormat("var regex = /[^abc]/;"); 756 verifyFormat("var regex = /[\\b]/;"); 757 verifyFormat("var regex = /[/]/;"); 758 verifyFormat("var regex = /[\\/]/;"); 759 verifyFormat("var regex = /\\[/;"); 760 verifyFormat("var regex = /\\\\[/]/;"); 761 verifyFormat("var regex = /}[\"]/;"); 762 verifyFormat("var regex = /}[/\"]/;"); 763 verifyFormat("var regex = /}[\"/]/;"); 764 765 verifyFormat("var regex = /\\b/;"); 766 verifyFormat("var regex = /\\B/;"); 767 verifyFormat("var regex = /\\d/;"); 768 verifyFormat("var regex = /\\D/;"); 769 verifyFormat("var regex = /\\f/;"); 770 verifyFormat("var regex = /\\n/;"); 771 verifyFormat("var regex = /\\r/;"); 772 verifyFormat("var regex = /\\s/;"); 773 verifyFormat("var regex = /\\S/;"); 774 verifyFormat("var regex = /\\t/;"); 775 verifyFormat("var regex = /\\v/;"); 776 verifyFormat("var regex = /\\w/;"); 777 verifyFormat("var regex = /\\W/;"); 778 verifyFormat("var regex = /a(a)\\1/;"); 779 verifyFormat("var regex = /\\0/;"); 780 verifyFormat("var regex = /\\\\/g;"); 781 verifyFormat("var regex = /\\a\\\\/g;"); 782 verifyFormat("var regex = /\a\\//g;"); 783 verifyFormat("var regex = /a\\//;\n" 784 "var x = 0;"); 785 verifyFormat("var regex = /'/g;", "var regex = /'/g ;"); 786 verifyFormat("var regex = /'/g; //'", "var regex = /'/g ; //'"); 787 verifyFormat("var regex = /\\/*/;\n" 788 "var x = 0;", 789 "var regex = /\\/*/;\n" 790 "var x=0;"); 791 verifyFormat("var x = /a\\//;", "var x = /a\\// \n;"); 792 verifyFormat("var regex = /\"/;", getGoogleJSStyleWithColumns(16)); 793 verifyFormat("var regex =\n" 794 " /\"/;", 795 getGoogleJSStyleWithColumns(15)); 796 verifyFormat("var regex = //\n" 797 " /a/;"); 798 verifyFormat("var regexs = [\n" 799 " /d/, //\n" 800 " /aa/, //\n" 801 "];"); 802 } 803 804 TEST_F(FormatTestJS, RegexLiteralModifiers) { 805 verifyFormat("var regex = /abc/g;"); 806 verifyFormat("var regex = /abc/i;"); 807 verifyFormat("var regex = /abc/m;"); 808 verifyFormat("var regex = /abc/y;"); 809 } 810 811 TEST_F(FormatTestJS, RegexLiteralLength) { 812 verifyFormat("var regex = /aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/;", 813 getGoogleJSStyleWithColumns(60)); 814 verifyFormat("var regex =\n" 815 " /aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/;", 816 getGoogleJSStyleWithColumns(60)); 817 verifyFormat("var regex = /\\xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/;", 818 getGoogleJSStyleWithColumns(50)); 819 } 820 821 TEST_F(FormatTestJS, RegexLiteralExamples) { 822 verifyFormat("var regex = search.match(/(?:\?|&)times=([^?&]+)/i);"); 823 } 824 825 TEST_F(FormatTestJS, TypeAnnotations) { 826 verifyFormat("var x: string;"); 827 verifyFormat("var x: {a: string; b: number;} = {};"); 828 verifyFormat("function x(): string {\n return 'x';\n}"); 829 verifyFormat("function x(): {x: string} {\n return {x: 'x'};\n}"); 830 verifyFormat("function x(y: string): string {\n return 'x';\n}"); 831 verifyFormat("for (var y: string in x) {\n x();\n}"); 832 verifyFormat("for (var y: string of x) {\n x();\n}"); 833 verifyFormat("function x(y: {a?: number;} = {}): number {\n" 834 " return 12;\n" 835 "}"); 836 verifyFormat("((a: string, b: number): string => a + b);"); 837 verifyFormat("var x: (y: number) => string;"); 838 verifyFormat("var x: P<string, (a: number) => string>;"); 839 verifyFormat("var x = {y: function(): z { return 1; }};"); 840 verifyFormat("var x = {y: function(): {a: number} { return 1; }};"); 841 verifyFormat("function someFunc(args: string[]):\n" 842 " {longReturnValue: string[]} {}", 843 getGoogleJSStyleWithColumns(60)); 844 } 845 846 TEST_F(FormatTestJS, ClassDeclarations) { 847 verifyFormat("class C {\n x: string = 12;\n}"); 848 verifyFormat("class C {\n x(): string => 12;\n}"); 849 verifyFormat("class C {\n ['x' + 2]: string = 12;\n}"); 850 verifyFormat("class C {\n private x: string = 12;\n}"); 851 verifyFormat("class C {\n private static x: string = 12;\n}"); 852 verifyFormat("class C {\n static x(): string { return 'asd'; }\n}"); 853 verifyFormat("class C extends P implements I {}"); 854 verifyFormat("class C extends p.P implements i.I {}"); 855 verifyFormat("class Test {\n" 856 " aaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaa: aaaaaaaaaaaaaaaaaaaa):\n" 857 " aaaaaaaaaaaaaaaaaaaaaa {}\n" 858 "}"); 859 verifyFormat("foo = class Name {\n" 860 " constructor() {}\n" 861 "};"); 862 verifyFormat("foo = class {\n" 863 " constructor() {}\n" 864 "};"); 865 verifyFormat("class C {\n" 866 " x: {y: Z;} = {};\n" 867 " private y: {y: Z;} = {};\n" 868 "}"); 869 870 // ':' is not a type declaration here. 871 verifyFormat("class X {\n" 872 " subs = {\n" 873 " 'b': {\n" 874 " 'c': 1,\n" 875 " },\n" 876 " };\n" 877 "}"); 878 } 879 880 TEST_F(FormatTestJS, InterfaceDeclarations) { 881 verifyFormat("interface I {\n" 882 " x: string;\n" 883 " enum: string[];\n" 884 " enum?: string[];\n" 885 "}\n" 886 "var y;"); 887 // Ensure that state is reset after parsing the interface. 888 verifyFormat("interface a {}\n" 889 "export function b() {}\n" 890 "var x;"); 891 892 // Arrays of object type literals. 893 verifyFormat("interface I {\n" 894 " o: {}[];\n" 895 "}"); 896 } 897 898 TEST_F(FormatTestJS, EnumDeclarations) { 899 verifyFormat("enum Foo {\n" 900 " A = 1,\n" 901 " B\n" 902 "}"); 903 verifyFormat("export /* somecomment*/ enum Foo {\n" 904 " A = 1,\n" 905 " B\n" 906 "}"); 907 verifyFormat("enum Foo {\n" 908 " A = 1, // comment\n" 909 " B\n" 910 "}\n" 911 "var x = 1;"); 912 } 913 914 TEST_F(FormatTestJS, MetadataAnnotations) { 915 verifyFormat("@A\nclass C {\n}"); 916 verifyFormat("@A({arg: 'value'})\nclass C {\n}"); 917 verifyFormat("@A\n@B\nclass C {\n}"); 918 verifyFormat("class C {\n @A x: string;\n}"); 919 verifyFormat("class C {\n" 920 " @A\n" 921 " private x(): string {\n" 922 " return 'y';\n" 923 " }\n" 924 "}"); 925 verifyFormat("class X {}\n" 926 "class Y {}"); 927 } 928 929 TEST_F(FormatTestJS, Modules) { 930 verifyFormat("import SomeThing from 'some/module.js';"); 931 verifyFormat("import {X, Y} from 'some/module.js';"); 932 verifyFormat("import a, {X, Y} from 'some/module.js';"); 933 verifyFormat("import {\n" 934 " VeryLongImportsAreAnnoying,\n" 935 " VeryLongImportsAreAnnoying,\n" 936 " VeryLongImportsAreAnnoying,\n" 937 " VeryLongImportsAreAnnoying\n" 938 "} from 'some/module.js';"); 939 verifyFormat("import {\n" 940 " X,\n" 941 " Y,\n" 942 "} from 'some/module.js';"); 943 verifyFormat("import {\n" 944 " X,\n" 945 " Y,\n" 946 "} from\n 'some/long/module.js';", 947 getGoogleJSStyleWithColumns(20)); 948 verifyFormat("import {X as myLocalX, Y as myLocalY} from 'some/module.js';"); 949 verifyFormat("import * as lib from 'some/module.js';"); 950 verifyFormat("var x = {import: 1};\nx.import = 2;"); 951 952 verifyFormat("export function fn() {\n" 953 " return 'fn';\n" 954 "}"); 955 verifyFormat("export function A() {}\n" 956 "export default function B() {}\n" 957 "export function C() {}"); 958 verifyFormat("export const x = 12;"); 959 verifyFormat("export default class X {}"); 960 verifyFormat("export {X, Y} from 'some/module.js';"); 961 verifyFormat("export {\n" 962 " X,\n" 963 " Y,\n" 964 "} from 'some/module.js';"); 965 verifyFormat("export class C {\n" 966 " x: number;\n" 967 " y: string;\n" 968 "}"); 969 verifyFormat("export class X { y: number; }"); 970 verifyFormat("export abstract class X { y: number; }"); 971 verifyFormat("export default class X { y: number }"); 972 verifyFormat("export default function() {\n return 1;\n}"); 973 verifyFormat("export var x = 12;"); 974 verifyFormat("class C {}\n" 975 "export function f() {}\n" 976 "var v;"); 977 verifyFormat("export var x: number = 12;"); 978 verifyFormat("export const y = {\n" 979 " a: 1,\n" 980 " b: 2\n" 981 "};"); 982 verifyFormat("export enum Foo {\n" 983 " BAR,\n" 984 " // adsdasd\n" 985 " BAZ\n" 986 "}"); 987 verifyFormat("export default [\n" 988 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 989 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 990 "];"); 991 verifyFormat("export default [];"); 992 verifyFormat("export default () => {};"); 993 verifyFormat("export interface Foo { foo: number; }\n" 994 "export class Bar {\n" 995 " blah(): string { return this.blah; };\n" 996 "}"); 997 } 998 999 TEST_F(FormatTestJS, TemplateStrings) { 1000 // Keeps any whitespace/indentation within the template string. 1001 verifyFormat("var x = `hello\n" 1002 " ${ name }\n" 1003 " !`;", 1004 "var x = `hello\n" 1005 " ${ name }\n" 1006 " !`;"); 1007 1008 verifyFormat("var x =\n" 1009 " `hello ${world}` >= some();", 1010 getGoogleJSStyleWithColumns(34)); // Barely doesn't fit. 1011 verifyFormat("var x = `hello ${world}` >= some();", 1012 getGoogleJSStyleWithColumns(35)); // Barely fits. 1013 verifyFormat("var x = `hello\n" 1014 " ${world}` >=\n" 1015 " some();", 1016 "var x =\n" 1017 " `hello\n" 1018 " ${world}` >= some();", 1019 getGoogleJSStyleWithColumns(21)); // Barely doesn't fit. 1020 verifyFormat("var x = `hello\n" 1021 " ${world}` >= some();", 1022 "var x =\n" 1023 " `hello\n" 1024 " ${world}` >= some();", 1025 getGoogleJSStyleWithColumns(22)); // Barely fits. 1026 1027 verifyFormat("var x =\n" 1028 " `h`;", 1029 getGoogleJSStyleWithColumns(11)); 1030 verifyFormat("var x =\n `multi\n line`;", "var x = `multi\n line`;", 1031 getGoogleJSStyleWithColumns(13)); 1032 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 1033 " `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa`);"); 1034 1035 // Make sure template strings get a proper ColumnWidth assigned, even if they 1036 // are first token in line. 1037 verifyFormat( 1038 "var a = aaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 1039 " `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa`;"); 1040 1041 // Two template strings. 1042 verifyFormat("var x = `hello` == `hello`;"); 1043 1044 // Comments in template strings. 1045 verifyFormat("var x = `//a`;\n" 1046 "var y;", 1047 "var x =\n `//a`;\n" 1048 "var y ;"); 1049 verifyFormat("var x = `/*a`;\n" 1050 "var y;", 1051 "var x =\n `/*a`;\n" 1052 "var y;"); 1053 // Unterminated string literals in a template string. 1054 verifyFormat("var x = `'`; // comment with matching quote '\n" 1055 "var y;"); 1056 verifyFormat("var x = `\"`; // comment with matching quote \"\n" 1057 "var y;"); 1058 verifyFormat("it(`'aaaaaaaaaaaaaaa `, aaaaaaaaa);", 1059 "it(`'aaaaaaaaaaaaaaa `, aaaaaaaaa) ;", 1060 getGoogleJSStyleWithColumns(40)); 1061 // Backticks in a comment - not a template string. 1062 verifyFormat("var x = 1 // `/*a`;\n" 1063 " ;", 1064 "var x =\n 1 // `/*a`;\n" 1065 " ;"); 1066 verifyFormat("/* ` */ var x = 1; /* ` */", "/* ` */ var x\n= 1; /* ` */"); 1067 // Comment spans multiple template strings. 1068 verifyFormat("var x = `/*a`;\n" 1069 "var y = ` */ `;", 1070 "var x =\n `/*a`;\n" 1071 "var y =\n ` */ `;"); 1072 // Escaped backtick. 1073 verifyFormat("var x = ` \\` a`;\n" 1074 "var y;", 1075 "var x = ` \\` a`;\n" 1076 "var y;"); 1077 } 1078 1079 TEST_F(FormatTestJS, CastSyntax) { verifyFormat("var x = <type>foo;"); } 1080 1081 TEST_F(FormatTestJS, TypeArguments) { 1082 verifyFormat("class X<Y> {}"); 1083 verifyFormat("new X<Y>();"); 1084 verifyFormat("foo<Y>(a);"); 1085 verifyFormat("var x: X<Y>[];"); 1086 verifyFormat("class C extends D<E> implements F<G>, H<I> {}"); 1087 verifyFormat("function f(a: List<any> = null) {}"); 1088 verifyFormat("function f(): List<any> {}"); 1089 verifyFormat("function aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa():\n" 1090 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb {}"); 1091 verifyFormat("function aaaaaaaaaa(\n" 1092 " aaaaaaaaaaaaaaaa: aaaaaaaaaaaaaaaaaaa,\n" 1093 " aaaaaaaaaaaaaaaa: aaaaaaaaaaaaaaaaaaa):\n" 1094 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa {}"); 1095 } 1096 1097 TEST_F(FormatTestJS, UserDefinedTypeGuards) { 1098 verifyFormat( 1099 "function foo(check: Object):\n" 1100 " check is {foo: string, bar: string, baz: string, foobar: string} {\n" 1101 " return 'bar' in check;\n" 1102 "}\n"); 1103 } 1104 1105 TEST_F(FormatTestJS, OptionalTypes) { 1106 verifyFormat("function x(a?: b, c?, d?) {}"); 1107 verifyFormat("class X {\n" 1108 " y?: z;\n" 1109 " z?;\n" 1110 "}"); 1111 verifyFormat("interface X {\n" 1112 " y?(): z;\n" 1113 "}"); 1114 verifyFormat("x ? 1 : 2;"); 1115 verifyFormat("constructor({aa}: {\n" 1116 " aa?: string,\n" 1117 " aaaaaaaa?: string,\n" 1118 " aaaaaaaaaaaaaaa?: boolean,\n" 1119 " aaaaaa?: List<string>\n" 1120 "}) {}"); 1121 } 1122 1123 TEST_F(FormatTestJS, IndexSignature) { 1124 verifyFormat("var x: {[k: string]: v};"); 1125 } 1126 1127 TEST_F(FormatTestJS, WrapAfterParen) { 1128 verifyFormat("xxxxxxxxxxx(\n" 1129 " aaa, aaa);", 1130 getGoogleJSStyleWithColumns(20)); 1131 verifyFormat("xxxxxxxxxxx(\n" 1132 " aaa, aaa, aaa,\n" 1133 " aaa, aaa, aaa);", 1134 getGoogleJSStyleWithColumns(20)); 1135 verifyFormat("xxxxxxxxxxx(\n" 1136 " aaaaaaaaaaaaaaaaaaaaaaaa,\n" 1137 " function(x) {\n" 1138 " y(); //\n" 1139 " });", 1140 getGoogleJSStyleWithColumns(40)); 1141 verifyFormat("while (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa &&\n" 1142 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}"); 1143 } 1144 1145 TEST_F(FormatTestJS, JSDocAnnotations) { 1146 verifyFormat("/**\n" 1147 " * @export {this.is.a.long.path.to.a.Type}\n" 1148 " */", 1149 "/**\n" 1150 " * @export {this.is.a.long.path.to.a.Type}\n" 1151 " */", 1152 getGoogleJSStyleWithColumns(20)); 1153 } 1154 1155 TEST_F(FormatTestJS, RequoteStringsSingle) { 1156 verifyFormat("var x = 'foo';", "var x = \"foo\";"); 1157 verifyFormat("var x = 'fo\\'o\\'';", "var x = \"fo'o'\";"); 1158 verifyFormat("var x = 'fo\\'o\\'';", "var x = \"fo\\'o'\";"); 1159 verifyFormat( 1160 "var x =\n" 1161 " 'foo\\'';", 1162 // Code below is 15 chars wide, doesn't fit into the line with the 1163 // \ escape added. 1164 "var x = \"foo'\";", getGoogleJSStyleWithColumns(15)); 1165 // Removes no-longer needed \ escape from ". 1166 verifyFormat("var x = 'fo\"o';", "var x = \"fo\\\"o\";"); 1167 // Code below fits into 15 chars *after* removing the \ escape. 1168 verifyFormat("var x = 'fo\"o';", "var x = \"fo\\\"o\";", 1169 getGoogleJSStyleWithColumns(15)); 1170 } 1171 1172 TEST_F(FormatTestJS, RequoteStringsDouble) { 1173 FormatStyle DoubleQuotes = getGoogleStyle(FormatStyle::LK_JavaScript); 1174 DoubleQuotes.JavaScriptQuotes = FormatStyle::JSQS_Double; 1175 verifyFormat("var x = \"foo\";", DoubleQuotes); 1176 verifyFormat("var x = \"foo\";", "var x = 'foo';", DoubleQuotes); 1177 verifyFormat("var x = \"fo'o\";", "var x = 'fo\\'o';", DoubleQuotes); 1178 } 1179 1180 TEST_F(FormatTestJS, RequoteStringsLeave) { 1181 FormatStyle LeaveQuotes = getGoogleStyle(FormatStyle::LK_JavaScript); 1182 LeaveQuotes.JavaScriptQuotes = FormatStyle::JSQS_Leave; 1183 verifyFormat("var x = \"foo\";", LeaveQuotes); 1184 verifyFormat("var x = 'foo';", LeaveQuotes); 1185 } 1186 1187 } // end namespace tooling 1188 } // end namespace clang 1189