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.of() = 1;"); 129 verifyFormat("x.in() = 1;"); 130 verifyFormat("x.let() = 1;"); 131 verifyFormat("x.var() = 1;"); 132 verifyFormat("x = {\n" 133 " a: 12,\n" 134 " interface: 1,\n" 135 " switch: 1,\n" 136 "};"); 137 verifyFormat("var struct = 2;"); 138 verifyFormat("var union = 2;"); 139 verifyFormat("var interface = 2;"); 140 verifyFormat("interface = 2;"); 141 verifyFormat("x = interface instanceof y;"); 142 } 143 144 TEST_F(FormatTestJS, CppKeywords) { 145 // Make sure we don't mess stuff up because of C++ keywords. 146 verifyFormat("return operator && (aa);"); 147 } 148 149 TEST_F(FormatTestJS, ES6DestructuringAssignment) { 150 verifyFormat("var [a, b, c] = [1, 2, 3];"); 151 verifyFormat("let [a, b, c] = [1, 2, 3];"); 152 verifyFormat("var {a, b} = {a: 1, b: 2};"); 153 verifyFormat("let {a, b} = {a: 1, b: 2};"); 154 } 155 156 TEST_F(FormatTestJS, ContainerLiterals) { 157 verifyFormat("var x = {y: function(a) { return a; }};"); 158 verifyFormat("return {\n" 159 " link: function() {\n" 160 " f(); //\n" 161 " }\n" 162 "};"); 163 verifyFormat("return {\n" 164 " a: a,\n" 165 " link: function() {\n" 166 " f(); //\n" 167 " }\n" 168 "};"); 169 verifyFormat("return {\n" 170 " a: a,\n" 171 " link: function() {\n" 172 " f(); //\n" 173 " },\n" 174 " link: function() {\n" 175 " f(); //\n" 176 " }\n" 177 "};"); 178 verifyFormat("var stuff = {\n" 179 " // comment for update\n" 180 " update: false,\n" 181 " // comment for modules\n" 182 " modules: false,\n" 183 " // comment for tasks\n" 184 " tasks: false\n" 185 "};"); 186 verifyFormat("return {\n" 187 " 'finish':\n" 188 " //\n" 189 " a\n" 190 "};"); 191 verifyFormat("var obj = {\n" 192 " fooooooooo: function(x) {\n" 193 " return x.zIsTooLongForOneLineWithTheDeclarationLine();\n" 194 " }\n" 195 "};"); 196 // Simple object literal, as opposed to enum style below. 197 verifyFormat("var obj = {a: 123};"); 198 // Enum style top level assignment. 199 verifyFormat("X = {\n a: 123\n};"); 200 verifyFormat("X.Y = {\n a: 123\n};"); 201 // But only on the top level, otherwise its a plain object literal assignment. 202 verifyFormat("function x() {\n" 203 " y = {z: 1};\n" 204 "}"); 205 verifyFormat("x = foo && {a: 123};"); 206 207 // Arrow functions in object literals. 208 verifyFormat("var x = {y: (a) => { return a; }};"); 209 verifyFormat("var x = {y: (a) => a};"); 210 211 // Computed keys. 212 verifyFormat("var x = {[a]: 1, b: 2, [c]: 3};"); 213 verifyFormat("var x = {\n" 214 " [a]: 1,\n" 215 " b: 2,\n" 216 " [c]: 3,\n" 217 "};"); 218 219 // Object literals can leave out labels. 220 verifyFormat("f({a}, () => {\n" 221 " g(); //\n" 222 "});"); 223 224 // Keys can be quoted. 225 verifyFormat("var x = {\n" 226 " a: a,\n" 227 " b: b,\n" 228 " 'c': c,\n" 229 "};"); 230 } 231 232 TEST_F(FormatTestJS, MethodsInObjectLiterals) { 233 verifyFormat("var o = {\n" 234 " value: 'test',\n" 235 " get value() { // getter\n" 236 " return this.value;\n" 237 " }\n" 238 "};"); 239 verifyFormat("var o = {\n" 240 " value: 'test',\n" 241 " set value(val) { // setter\n" 242 " this.value = val;\n" 243 " }\n" 244 "};"); 245 verifyFormat("var o = {\n" 246 " value: 'test',\n" 247 " someMethod(val) { // method\n" 248 " doSomething(this.value + val);\n" 249 " }\n" 250 "};"); 251 verifyFormat("var o = {\n" 252 " someMethod(val) { // method\n" 253 " doSomething(this.value + val);\n" 254 " },\n" 255 " someOtherMethod(val) { // method\n" 256 " doSomething(this.value + val);\n" 257 " }\n" 258 "};"); 259 } 260 261 TEST_F(FormatTestJS, SpacesInContainerLiterals) { 262 verifyFormat("var arr = [1, 2, 3];"); 263 verifyFormat("f({a: 1, b: 2, c: 3});"); 264 265 verifyFormat("var object_literal_with_long_name = {\n" 266 " a: 'aaaaaaaaaaaaaaaaaa',\n" 267 " b: 'bbbbbbbbbbbbbbbbbb'\n" 268 "};"); 269 270 verifyFormat("f({a: 1, b: 2, c: 3});", 271 getChromiumStyle(FormatStyle::LK_JavaScript)); 272 verifyFormat("f({'a': [{}]});"); 273 } 274 275 TEST_F(FormatTestJS, SingleQuotedStrings) { 276 verifyFormat("this.function('', true);"); 277 } 278 279 TEST_F(FormatTestJS, GoogScopes) { 280 verifyFormat("goog.scope(function() {\n" 281 "var x = a.b;\n" 282 "var y = c.d;\n" 283 "}); // goog.scope"); 284 verifyFormat("goog.scope(function() {\n" 285 "// test\n" 286 "var x = 0;\n" 287 "// test\n" 288 "});"); 289 } 290 291 TEST_F(FormatTestJS, GoogModules) { 292 verifyFormat("goog.module('this.is.really.absurdly.long');", 293 getGoogleJSStyleWithColumns(40)); 294 verifyFormat("goog.require('this.is.really.absurdly.long');", 295 getGoogleJSStyleWithColumns(40)); 296 verifyFormat("goog.provide('this.is.really.absurdly.long');", 297 getGoogleJSStyleWithColumns(40)); 298 verifyFormat("var long = goog.require('this.is.really.absurdly.long');", 299 getGoogleJSStyleWithColumns(40)); 300 verifyFormat("goog.setTestOnly('this.is.really.absurdly.long');", 301 getGoogleJSStyleWithColumns(40)); 302 verifyFormat("goog.forwardDeclare('this.is.really.absurdly.long');", 303 getGoogleJSStyleWithColumns(40)); 304 305 // These should be wrapped normally. 306 verifyFormat( 307 "var MyLongClassName =\n" 308 " goog.module.get('my.long.module.name.followedBy.MyLongClassName');"); 309 } 310 311 TEST_F(FormatTestJS, FormatsFreestandingFunctions) { 312 verifyFormat("function outer1(a, b) {\n" 313 " function inner1(a, b) { return a; }\n" 314 " inner1(a, b);\n" 315 "}\n" 316 "function outer2(a, b) {\n" 317 " function inner2(a, b) { return a; }\n" 318 " inner2(a, b);\n" 319 "}"); 320 verifyFormat("function f() {}"); 321 } 322 323 TEST_F(FormatTestJS, ArrayLiterals) { 324 verifyFormat("var aaaaa: List<SomeThing> =\n" 325 " [new SomeThingAAAAAAAAAAAA(), new SomeThingBBBBBBBBB()];"); 326 verifyFormat("return [\n" 327 " aaaaaaaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbbbbbbbbbbbbbbbbbbbb,\n" 328 " ccccccccccccccccccccccccccc\n" 329 "];"); 330 verifyFormat("return [\n" 331 " aaaa().bbbbbbbb('A'),\n" 332 " aaaa().bbbbbbbb('B'),\n" 333 " aaaa().bbbbbbbb('C'),\n" 334 "];"); 335 verifyFormat("var someVariable = SomeFunction([\n" 336 " aaaaaaaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbbbbbbbbbbbbbbbbbbbb,\n" 337 " ccccccccccccccccccccccccccc\n" 338 "]);"); 339 verifyFormat("var someVariable = SomeFunction([\n" 340 " [aaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbbbbbbbbbbbbbbb],\n" 341 "]);", 342 getGoogleJSStyleWithColumns(51)); 343 verifyFormat("var someVariable = SomeFunction(aaaa, [\n" 344 " aaaaaaaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbbbbbbbbbbbbbbbbbbbb,\n" 345 " ccccccccccccccccccccccccccc\n" 346 "]);"); 347 verifyFormat("var someVariable = SomeFunction(\n" 348 " aaaa,\n" 349 " [\n" 350 " aaaaaaaaaaaaaaaaaaaaaaaaaa, bbbbbbbbbbbbbbbbbbbbbbbbbb,\n" 351 " cccccccccccccccccccccccccc\n" 352 " ],\n" 353 " aaaa);"); 354 verifyFormat("var aaaa = aaaaa || // wrap\n" 355 " [];"); 356 357 verifyFormat("someFunction([], {a: a});"); 358 } 359 360 TEST_F(FormatTestJS, ColumnLayoutForArrayLiterals) { 361 verifyFormat("var array = [\n" 362 " a, a, a, a, a, a, a, a, a, a, a, a, a, a, a,\n" 363 " a, a, a, a, a, a, a, a, a, a, a, a, a, a, a,\n" 364 "];"); 365 verifyFormat("var array = someFunction([\n" 366 " a, a, a, a, a, a, a, a, a, a, a, a, a, a, a,\n" 367 " a, a, a, a, a, a, a, a, a, a, a, a, a, a, a,\n" 368 "]);"); 369 } 370 371 TEST_F(FormatTestJS, FunctionLiterals) { 372 verifyFormat("doFoo(function() {});"); 373 verifyFormat("doFoo(function() { return 1; });"); 374 verifyFormat("var func = function() {\n" 375 " return 1;\n" 376 "};"); 377 verifyFormat("var func = //\n" 378 " function() {\n" 379 " return 1;\n" 380 "};"); 381 verifyFormat("return {\n" 382 " body: {\n" 383 " setAttribute: function(key, val) { this[key] = val; },\n" 384 " getAttribute: function(key) { return this[key]; },\n" 385 " style: {direction: ''}\n" 386 " }\n" 387 "};"); 388 verifyFormat("abc = xyz ? function() {\n" 389 " return 1;\n" 390 "} : function() {\n" 391 " return -1;\n" 392 "};"); 393 394 verifyFormat("var closure = goog.bind(\n" 395 " function() { // comment\n" 396 " foo();\n" 397 " bar();\n" 398 " },\n" 399 " this, arg1IsReallyLongAndNeeedsLineBreaks,\n" 400 " arg3IsReallyLongAndNeeedsLineBreaks);"); 401 verifyFormat("var closure = goog.bind(function() { // comment\n" 402 " foo();\n" 403 " bar();\n" 404 "}, this);"); 405 verifyFormat("return {\n" 406 " a: 'E',\n" 407 " b: function() {\n" 408 " return function() {\n" 409 " f(); //\n" 410 " };\n" 411 " }\n" 412 "};"); 413 verifyFormat("{\n" 414 " var someVariable = function(x) {\n" 415 " return x.zIsTooLongForOneLineWithTheDeclarationLine();\n" 416 " };\n" 417 "}"); 418 verifyFormat("someLooooooooongFunction(\n" 419 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 420 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 421 " function(aaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {\n" 422 " // code\n" 423 " });"); 424 425 verifyFormat("f({a: function() { return 1; }});", 426 getGoogleJSStyleWithColumns(33)); 427 verifyFormat("f({\n" 428 " a: function() { return 1; }\n" 429 "});", 430 getGoogleJSStyleWithColumns(32)); 431 432 verifyFormat("return {\n" 433 " a: function SomeFunction() {\n" 434 " // ...\n" 435 " return 1;\n" 436 " }\n" 437 "};"); 438 verifyFormat("this.someObject.doSomething(aaaaaaaaaaaaaaaaaaaaaaaaaa)\n" 439 " .then(goog.bind(function(aaaaaaaaaaa) {\n" 440 " someFunction();\n" 441 " someFunction();\n" 442 " }, this), aaaaaaaaaaaaaaaaa);"); 443 444 verifyFormat("someFunction(goog.bind(function() {\n" 445 " doSomething();\n" 446 " doSomething();\n" 447 "}, this), goog.bind(function() {\n" 448 " doSomething();\n" 449 " doSomething();\n" 450 "}, this));"); 451 452 // FIXME: This is bad, we should be wrapping before "function() {". 453 verifyFormat("someFunction(function() {\n" 454 " doSomething(); // break\n" 455 "})\n" 456 " .doSomethingElse(\n" 457 " // break\n" 458 " );"); 459 } 460 461 TEST_F(FormatTestJS, InliningFunctionLiterals) { 462 FormatStyle Style = getGoogleStyle(FormatStyle::LK_JavaScript); 463 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_Inline; 464 verifyFormat("var func = function() {\n" 465 " return 1;\n" 466 "};", 467 Style); 468 verifyFormat("var func = doSomething(function() { return 1; });", Style); 469 verifyFormat("var outer = function() {\n" 470 " var inner = function() { return 1; }\n" 471 "};", 472 Style); 473 verifyFormat("function outer1(a, b) {\n" 474 " function inner1(a, b) { return a; }\n" 475 "}", 476 Style); 477 478 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_All; 479 verifyFormat("var func = function() { return 1; };", Style); 480 verifyFormat("var func = doSomething(function() { return 1; });", Style); 481 verifyFormat( 482 "var outer = function() { var inner = function() { return 1; } };", 483 Style); 484 verifyFormat("function outer1(a, b) {\n" 485 " function inner1(a, b) { return a; }\n" 486 "}", 487 Style); 488 489 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_None; 490 verifyFormat("var func = function() {\n" 491 " return 1;\n" 492 "};", 493 Style); 494 verifyFormat("var func = doSomething(function() {\n" 495 " return 1;\n" 496 "});", 497 Style); 498 verifyFormat("var outer = function() {\n" 499 " var inner = function() {\n" 500 " return 1;\n" 501 " }\n" 502 "};", 503 Style); 504 verifyFormat("function outer1(a, b) {\n" 505 " function inner1(a, b) {\n" 506 " return a;\n" 507 " }\n" 508 "}", 509 Style); 510 511 Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_Empty; 512 verifyFormat("var func = function() {\n" 513 " return 1;\n" 514 "};", 515 Style); 516 } 517 518 TEST_F(FormatTestJS, MultipleFunctionLiterals) { 519 verifyFormat("promise.then(\n" 520 " function success() {\n" 521 " doFoo();\n" 522 " doBar();\n" 523 " },\n" 524 " function error() {\n" 525 " doFoo();\n" 526 " doBaz();\n" 527 " },\n" 528 " []);\n"); 529 verifyFormat("promise.then(\n" 530 " function success() {\n" 531 " doFoo();\n" 532 " doBar();\n" 533 " },\n" 534 " [],\n" 535 " function error() {\n" 536 " doFoo();\n" 537 " doBaz();\n" 538 " });\n"); 539 verifyFormat("promise.then(\n" 540 " [],\n" 541 " function success() {\n" 542 " doFoo();\n" 543 " doBar();\n" 544 " },\n" 545 " function error() {\n" 546 " doFoo();\n" 547 " doBaz();\n" 548 " });\n"); 549 550 verifyFormat("getSomeLongPromise()\n" 551 " .then(function(value) { body(); })\n" 552 " .thenCatch(function(error) {\n" 553 " body();\n" 554 " body();\n" 555 " });"); 556 verifyFormat("getSomeLongPromise()\n" 557 " .then(function(value) {\n" 558 " body();\n" 559 " body();\n" 560 " })\n" 561 " .thenCatch(function(error) {\n" 562 " body();\n" 563 " body();\n" 564 " });"); 565 566 verifyFormat("getSomeLongPromise()\n" 567 " .then(function(value) { body(); })\n" 568 " .thenCatch(function(error) { body(); });"); 569 570 verifyFormat("return [aaaaaaaaaaaaaaaaaaaaaa]\n" 571 " .aaaaaaa(function() {\n" 572 " //\n" 573 " })\n" 574 " .bbbbbb();"); 575 } 576 577 TEST_F(FormatTestJS, ArrowFunctions) { 578 verifyFormat("var x = (a) => {\n" 579 " return a;\n" 580 "};"); 581 verifyFormat("var x = (a) => {\n" 582 " function y() { return 42; }\n" 583 " return a;\n" 584 "};"); 585 verifyFormat("var x = (a: type): {some: type} => {\n" 586 " return a;\n" 587 "};"); 588 verifyFormat("var x = (a) => a;"); 589 verifyFormat("return () => [];"); 590 verifyFormat("var aaaaaaaaaaaaaaaaaaaa = {\n" 591 " aaaaaaaaaaaaaaaaaaaaaaaaaaaa:\n" 592 " (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 593 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) =>\n" 594 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 595 "};"); 596 verifyFormat("var a = a.aaaaaaa(\n" 597 " (a: a) => aaaaaaaaaaaaaaaaaaaaaaaaa(bbbbbbbbb) &&\n" 598 " aaaaaaaaaaaaaaaaaaaaaaaaa(bbbbbbb));"); 599 verifyFormat("var a = a.aaaaaaa(\n" 600 " (a: a) => aaaaaaaaaaaaaaaaaaaaa(bbbbbbbbb) ?\n" 601 " aaaaaaaaaaaaaaaaaaaaa(bbbbbbb) :\n" 602 " aaaaaaaaaaaaaaaaaaaaa(bbbbbbb));"); 603 604 // FIXME: This is bad, we should be wrapping before "() => {". 605 verifyFormat("someFunction(() => {\n" 606 " doSomething(); // break\n" 607 "})\n" 608 " .doSomethingElse(\n" 609 " // break\n" 610 " );"); 611 } 612 613 TEST_F(FormatTestJS, ReturnStatements) { 614 verifyFormat("function() {\n" 615 " return [hello, world];\n" 616 "}"); 617 } 618 619 TEST_F(FormatTestJS, ForLoops) { 620 verifyFormat("for (var i in [2, 3]) {\n" 621 "}"); 622 verifyFormat("for (var i of [2, 3]) {\n" 623 "}"); 624 verifyFormat("for (let {a, b} of x) {\n" 625 "}"); 626 verifyFormat("for (let {a, b} in x) {\n" 627 "}"); 628 } 629 630 TEST_F(FormatTestJS, WrapRespectsAutomaticSemicolonInsertion) { 631 // The following statements must not wrap, as otherwise the program meaning 632 // would change due to automatic semicolon insertion. 633 // See http://www.ecma-international.org/ecma-262/5.1/#sec-7.9.1. 634 verifyFormat("return aaaaa;", getGoogleJSStyleWithColumns(10)); 635 verifyFormat("continue aaaaa;", getGoogleJSStyleWithColumns(10)); 636 verifyFormat("break aaaaa;", getGoogleJSStyleWithColumns(10)); 637 verifyFormat("throw aaaaa;", getGoogleJSStyleWithColumns(10)); 638 verifyFormat("aaaaaaaaa++;", getGoogleJSStyleWithColumns(10)); 639 verifyFormat("aaaaaaaaa--;", getGoogleJSStyleWithColumns(10)); 640 verifyFormat("return [\n" 641 " aaa\n" 642 "];", 643 getGoogleJSStyleWithColumns(12)); 644 } 645 646 TEST_F(FormatTestJS, AutomaticSemicolonInsertionHeuristic) { 647 verifyFormat("a\n" 648 "b;", 649 " a \n" 650 " b ;"); 651 verifyFormat("a()\n" 652 "b;", 653 " a ()\n" 654 " b ;"); 655 verifyFormat("a[b]\n" 656 "c;", 657 "a [b]\n" 658 "c ;"); 659 verifyFormat("1\n" 660 "a;", 661 "1 \n" 662 "a ;"); 663 verifyFormat("a\n" 664 "1;", 665 "a \n" 666 "1 ;"); 667 verifyFormat("a\n" 668 "'x';", 669 "a \n" 670 " 'x';"); 671 verifyFormat("a++\n" 672 "b;", 673 "a ++\n" 674 "b ;"); 675 verifyFormat("a\n" 676 "!b && c;", 677 "a \n" 678 " ! b && c;"); 679 verifyFormat("a\n" 680 "if (1) f();", 681 " a\n" 682 " if (1) f();"); 683 verifyFormat("a\n" 684 "class X {}", 685 " a\n" 686 " class X {}"); 687 verifyFormat("var a", "var\n" 688 "a"); 689 verifyFormat("x instanceof String", "x\n" 690 "instanceof\n" 691 "String"); 692 verifyFormat("function f(@Foo bar) {}", "function f(@Foo\n" 693 " bar) {}"); 694 } 695 696 TEST_F(FormatTestJS, ClosureStyleCasts) { 697 verifyFormat("var x = /** @type {foo} */ (bar);"); 698 } 699 700 TEST_F(FormatTestJS, TryCatch) { 701 verifyFormat("try {\n" 702 " f();\n" 703 "} catch (e) {\n" 704 " g();\n" 705 "} finally {\n" 706 " h();\n" 707 "}"); 708 709 // But, of course, "catch" is a perfectly fine function name in JavaScript. 710 verifyFormat("someObject.catch();"); 711 verifyFormat("someObject.new();"); 712 verifyFormat("someObject.delete();"); 713 } 714 715 TEST_F(FormatTestJS, StringLiteralConcatenation) { 716 verifyFormat("var literal = 'hello ' +\n" 717 " 'world';"); 718 } 719 720 TEST_F(FormatTestJS, RegexLiteralClassification) { 721 // Regex literals. 722 verifyFormat("var regex = /abc/;"); 723 verifyFormat("f(/abc/);"); 724 verifyFormat("f(abc, /abc/);"); 725 verifyFormat("some_map[/abc/];"); 726 verifyFormat("var x = a ? /abc/ : /abc/;"); 727 verifyFormat("for (var i = 0; /abc/.test(s[i]); i++) {\n}"); 728 verifyFormat("var x = !/abc/.test(y);"); 729 verifyFormat("var x = a && /abc/.test(y);"); 730 verifyFormat("var x = a || /abc/.test(y);"); 731 verifyFormat("var x = a + /abc/.search(y);"); 732 verifyFormat("/abc/.search(y);"); 733 verifyFormat("var regexs = {/abc/, /abc/};"); 734 verifyFormat("return /abc/;"); 735 736 // Not regex literals. 737 verifyFormat("var a = a / 2 + b / 3;"); 738 verifyFormat("var a = a++ / 2;"); 739 // Prefix unary can operate on regex literals, not that it makes sense. 740 verifyFormat("var a = ++/a/;"); 741 742 // This is a known issue, regular expressions are incorrectly detected if 743 // directly following a closing parenthesis. 744 verifyFormat("if (foo) / bar /.exec(baz);"); 745 } 746 747 TEST_F(FormatTestJS, RegexLiteralSpecialCharacters) { 748 verifyFormat("var regex = /=/;"); 749 verifyFormat("var regex = /a*/;"); 750 verifyFormat("var regex = /a+/;"); 751 verifyFormat("var regex = /a?/;"); 752 verifyFormat("var regex = /.a./;"); 753 verifyFormat("var regex = /a\\*/;"); 754 verifyFormat("var regex = /^a$/;"); 755 verifyFormat("var regex = /\\/a/;"); 756 verifyFormat("var regex = /(?:x)/;"); 757 verifyFormat("var regex = /x(?=y)/;"); 758 verifyFormat("var regex = /x(?!y)/;"); 759 verifyFormat("var regex = /x|y/;"); 760 verifyFormat("var regex = /a{2}/;"); 761 verifyFormat("var regex = /a{1,3}/;"); 762 763 verifyFormat("var regex = /[abc]/;"); 764 verifyFormat("var regex = /[^abc]/;"); 765 verifyFormat("var regex = /[\\b]/;"); 766 verifyFormat("var regex = /[/]/;"); 767 verifyFormat("var regex = /[\\/]/;"); 768 verifyFormat("var regex = /\\[/;"); 769 verifyFormat("var regex = /\\\\[/]/;"); 770 verifyFormat("var regex = /}[\"]/;"); 771 verifyFormat("var regex = /}[/\"]/;"); 772 verifyFormat("var regex = /}[\"/]/;"); 773 774 verifyFormat("var regex = /\\b/;"); 775 verifyFormat("var regex = /\\B/;"); 776 verifyFormat("var regex = /\\d/;"); 777 verifyFormat("var regex = /\\D/;"); 778 verifyFormat("var regex = /\\f/;"); 779 verifyFormat("var regex = /\\n/;"); 780 verifyFormat("var regex = /\\r/;"); 781 verifyFormat("var regex = /\\s/;"); 782 verifyFormat("var regex = /\\S/;"); 783 verifyFormat("var regex = /\\t/;"); 784 verifyFormat("var regex = /\\v/;"); 785 verifyFormat("var regex = /\\w/;"); 786 verifyFormat("var regex = /\\W/;"); 787 verifyFormat("var regex = /a(a)\\1/;"); 788 verifyFormat("var regex = /\\0/;"); 789 verifyFormat("var regex = /\\\\/g;"); 790 verifyFormat("var regex = /\\a\\\\/g;"); 791 verifyFormat("var regex = /\a\\//g;"); 792 verifyFormat("var regex = /a\\//;\n" 793 "var x = 0;"); 794 verifyFormat("var regex = /'/g;", "var regex = /'/g ;"); 795 verifyFormat("var regex = /'/g; //'", "var regex = /'/g ; //'"); 796 verifyFormat("var regex = /\\/*/;\n" 797 "var x = 0;", 798 "var regex = /\\/*/;\n" 799 "var x=0;"); 800 verifyFormat("var x = /a\\//;", "var x = /a\\// \n;"); 801 verifyFormat("var regex = /\"/;", getGoogleJSStyleWithColumns(16)); 802 verifyFormat("var regex =\n" 803 " /\"/;", 804 getGoogleJSStyleWithColumns(15)); 805 verifyFormat("var regex = //\n" 806 " /a/;"); 807 verifyFormat("var regexs = [\n" 808 " /d/, //\n" 809 " /aa/, //\n" 810 "];"); 811 } 812 813 TEST_F(FormatTestJS, RegexLiteralModifiers) { 814 verifyFormat("var regex = /abc/g;"); 815 verifyFormat("var regex = /abc/i;"); 816 verifyFormat("var regex = /abc/m;"); 817 verifyFormat("var regex = /abc/y;"); 818 } 819 820 TEST_F(FormatTestJS, RegexLiteralLength) { 821 verifyFormat("var regex = /aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/;", 822 getGoogleJSStyleWithColumns(60)); 823 verifyFormat("var regex =\n" 824 " /aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/;", 825 getGoogleJSStyleWithColumns(60)); 826 verifyFormat("var regex = /\\xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/;", 827 getGoogleJSStyleWithColumns(50)); 828 } 829 830 TEST_F(FormatTestJS, RegexLiteralExamples) { 831 verifyFormat("var regex = search.match(/(?:\?|&)times=([^?&]+)/i);"); 832 } 833 834 TEST_F(FormatTestJS, TypeAnnotations) { 835 verifyFormat("var x: string;"); 836 verifyFormat("var x: {a: string; b: number;} = {};"); 837 verifyFormat("function x(): string {\n return 'x';\n}"); 838 verifyFormat("function x(): {x: string} {\n return {x: 'x'};\n}"); 839 verifyFormat("function x(y: string): string {\n return 'x';\n}"); 840 verifyFormat("for (var y: string in x) {\n x();\n}"); 841 verifyFormat("for (var y: string of x) {\n x();\n}"); 842 verifyFormat("function x(y: {a?: number;} = {}): number {\n" 843 " return 12;\n" 844 "}"); 845 verifyFormat("((a: string, b: number): string => a + b);"); 846 verifyFormat("var x: (y: number) => string;"); 847 verifyFormat("var x: P<string, (a: number) => string>;"); 848 verifyFormat("var x = {y: function(): z { return 1; }};"); 849 verifyFormat("var x = {y: function(): {a: number} { return 1; }};"); 850 verifyFormat("function someFunc(args: string[]):\n" 851 " {longReturnValue: string[]} {}", 852 getGoogleJSStyleWithColumns(60)); 853 } 854 855 TEST_F(FormatTestJS, UnionIntersectionTypes) { 856 verifyFormat("let x: A|B = A | B;"); 857 verifyFormat("let x: A&B|C = A & B;"); 858 verifyFormat("let x: Foo<A|B> = new Foo<A|B>();"); 859 verifyFormat("function(x: A|B): C&D {}"); 860 verifyFormat("function(x: A|B = A | B): C&D {}"); 861 } 862 863 TEST_F(FormatTestJS, ClassDeclarations) { 864 verifyFormat("class C {\n x: string = 12;\n}"); 865 verifyFormat("class C {\n x(): string => 12;\n}"); 866 verifyFormat("class C {\n ['x' + 2]: string = 12;\n}"); 867 verifyFormat("class C {\n private x: string = 12;\n}"); 868 verifyFormat("class C {\n private static x: string = 12;\n}"); 869 verifyFormat("class C {\n static x(): string { return 'asd'; }\n}"); 870 verifyFormat("class C extends P implements I {}"); 871 verifyFormat("class C extends p.P implements i.I {}"); 872 verifyFormat("class Test {\n" 873 " aaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaa: aaaaaaaaaaaaaaaaaaaa):\n" 874 " aaaaaaaaaaaaaaaaaaaaaa {}\n" 875 "}"); 876 verifyFormat("foo = class Name {\n" 877 " constructor() {}\n" 878 "};"); 879 verifyFormat("foo = class {\n" 880 " constructor() {}\n" 881 "};"); 882 verifyFormat("class C {\n" 883 " x: {y: Z;} = {};\n" 884 " private y: {y: Z;} = {};\n" 885 "}"); 886 887 // ':' is not a type declaration here. 888 verifyFormat("class X {\n" 889 " subs = {\n" 890 " 'b': {\n" 891 " 'c': 1,\n" 892 " },\n" 893 " };\n" 894 "}"); 895 } 896 897 TEST_F(FormatTestJS, InterfaceDeclarations) { 898 verifyFormat("interface I {\n" 899 " x: string;\n" 900 " enum: string[];\n" 901 " enum?: string[];\n" 902 "}\n" 903 "var y;"); 904 // Ensure that state is reset after parsing the interface. 905 verifyFormat("interface a {}\n" 906 "export function b() {}\n" 907 "var x;"); 908 909 // Arrays of object type literals. 910 verifyFormat("interface I {\n" 911 " o: {}[];\n" 912 "}"); 913 } 914 915 TEST_F(FormatTestJS, EnumDeclarations) { 916 verifyFormat("enum Foo {\n" 917 " A = 1,\n" 918 " B\n" 919 "}"); 920 verifyFormat("export /* somecomment*/ enum Foo {\n" 921 " A = 1,\n" 922 " B\n" 923 "}"); 924 verifyFormat("enum Foo {\n" 925 " A = 1, // comment\n" 926 " B\n" 927 "}\n" 928 "var x = 1;"); 929 } 930 931 TEST_F(FormatTestJS, MetadataAnnotations) { 932 verifyFormat("@A\nclass C {\n}"); 933 verifyFormat("@A({arg: 'value'})\nclass C {\n}"); 934 verifyFormat("@A\n@B\nclass C {\n}"); 935 verifyFormat("class C {\n @A x: string;\n}"); 936 verifyFormat("class C {\n" 937 " @A\n" 938 " private x(): string {\n" 939 " return 'y';\n" 940 " }\n" 941 "}"); 942 verifyFormat("class C {\n" 943 " private x(@A x: string) {}\n" 944 "}"); 945 verifyFormat("class X {}\n" 946 "class Y {}"); 947 } 948 949 TEST_F(FormatTestJS, TypeAliases) { 950 verifyFormat("type X = number;\n" 951 "class C {}"); 952 verifyFormat("type X<Y> = Z<Y>;"); 953 verifyFormat("type X = {\n" 954 " y: number\n" 955 "};\n" 956 "class C {}"); 957 } 958 959 TEST_F(FormatTestJS, Modules) { 960 verifyFormat("import SomeThing from 'some/module.js';"); 961 verifyFormat("import {X, Y} from 'some/module.js';"); 962 verifyFormat("import a, {X, Y} from 'some/module.js';"); 963 verifyFormat("import {VeryLongImportsAreAnnoying, VeryLongImportsAreAnnoying," 964 " VeryLongImportsAreAnnoying, VeryLongImportsAreAnnoying" 965 "} from 'some/module.js';"); 966 verifyFormat("import {X, Y,} from 'some/module.js';"); 967 verifyFormat("import {X as myLocalX, Y as myLocalY} from 'some/module.js';"); 968 verifyFormat("import * as lib from 'some/module.js';"); 969 verifyFormat("var x = {import: 1};\nx.import = 2;"); 970 971 verifyFormat("export function fn() {\n" 972 " return 'fn';\n" 973 "}"); 974 verifyFormat("export function A() {}\n" 975 "export default function B() {}\n" 976 "export function C() {}"); 977 verifyFormat("export default () => {\n" 978 " let x = 1;\n" 979 " return x;\n" 980 "}"); 981 verifyFormat("export const x = 12;"); 982 verifyFormat("export default class X {}"); 983 verifyFormat("export {X, Y} from 'some/module.js';"); 984 verifyFormat("export {X, Y,} from 'some/module.js';"); 985 verifyFormat("export {SomeVeryLongExport as X, " 986 "SomeOtherVeryLongExport as Y} from 'some/module.js';"); 987 // export without 'from' is wrapped. 988 verifyFormat("export let someRatherLongVariableName =\n" 989 " someSurprisinglyLongVariable + someOtherRatherLongVar;"); 990 // ... but not if from is just an identifier. 991 verifyFormat("export {\n" 992 " from as from,\n" 993 " someSurprisinglyLongVariable\n" 994 " as from\n" 995 "};", 996 getGoogleJSStyleWithColumns(20)); 997 verifyFormat("export class C {\n" 998 " x: number;\n" 999 " y: string;\n" 1000 "}"); 1001 verifyFormat("export class X { y: number; }"); 1002 verifyFormat("export abstract class X { y: number; }"); 1003 verifyFormat("export default class X { y: number }"); 1004 verifyFormat("export default function() {\n return 1;\n}"); 1005 verifyFormat("export var x = 12;"); 1006 verifyFormat("class C {}\n" 1007 "export function f() {}\n" 1008 "var v;"); 1009 verifyFormat("export var x: number = 12;"); 1010 verifyFormat("export const y = {\n" 1011 " a: 1,\n" 1012 " b: 2\n" 1013 "};"); 1014 verifyFormat("export enum Foo {\n" 1015 " BAR,\n" 1016 " // adsdasd\n" 1017 " BAZ\n" 1018 "}"); 1019 verifyFormat("export default [\n" 1020 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n" 1021 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\n" 1022 "];"); 1023 verifyFormat("export default [];"); 1024 verifyFormat("export default () => {};"); 1025 verifyFormat("export interface Foo { foo: number; }\n" 1026 "export class Bar {\n" 1027 " blah(): string { return this.blah; };\n" 1028 "}"); 1029 } 1030 1031 TEST_F(FormatTestJS, TemplateStrings) { 1032 // Keeps any whitespace/indentation within the template string. 1033 verifyFormat("var x = `hello\n" 1034 " ${ name }\n" 1035 " !`;", 1036 "var x = `hello\n" 1037 " ${ name }\n" 1038 " !`;"); 1039 1040 verifyFormat("var x =\n" 1041 " `hello ${world}` >= some();", 1042 getGoogleJSStyleWithColumns(34)); // Barely doesn't fit. 1043 verifyFormat("var x = `hello ${world}` >= some();", 1044 getGoogleJSStyleWithColumns(35)); // Barely fits. 1045 verifyFormat("var x = `hello\n" 1046 " ${world}` >=\n" 1047 " some();", 1048 "var x =\n" 1049 " `hello\n" 1050 " ${world}` >= some();", 1051 getGoogleJSStyleWithColumns(21)); // Barely doesn't fit. 1052 verifyFormat("var x = `hello\n" 1053 " ${world}` >= some();", 1054 "var x =\n" 1055 " `hello\n" 1056 " ${world}` >= some();", 1057 getGoogleJSStyleWithColumns(22)); // Barely fits. 1058 1059 verifyFormat("var x =\n" 1060 " `h`;", 1061 getGoogleJSStyleWithColumns(11)); 1062 verifyFormat("var x =\n `multi\n line`;", "var x = `multi\n line`;", 1063 getGoogleJSStyleWithColumns(13)); 1064 verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n" 1065 " `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa`);"); 1066 1067 // Make sure template strings get a proper ColumnWidth assigned, even if they 1068 // are first token in line. 1069 verifyFormat( 1070 "var a = aaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n" 1071 " `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa`;"); 1072 1073 // Two template strings. 1074 verifyFormat("var x = `hello` == `hello`;"); 1075 1076 // Comments in template strings. 1077 verifyFormat("var x = `//a`;\n" 1078 "var y;", 1079 "var x =\n `//a`;\n" 1080 "var y ;"); 1081 verifyFormat("var x = `/*a`;\n" 1082 "var y;", 1083 "var x =\n `/*a`;\n" 1084 "var y;"); 1085 // Unterminated string literals in a template string. 1086 verifyFormat("var x = `'`; // comment with matching quote '\n" 1087 "var y;"); 1088 verifyFormat("var x = `\"`; // comment with matching quote \"\n" 1089 "var y;"); 1090 verifyFormat("it(`'aaaaaaaaaaaaaaa `, aaaaaaaaa);", 1091 "it(`'aaaaaaaaaaaaaaa `, aaaaaaaaa) ;", 1092 getGoogleJSStyleWithColumns(40)); 1093 // Backticks in a comment - not a template string. 1094 verifyFormat("var x = 1 // `/*a`;\n" 1095 " ;", 1096 "var x =\n 1 // `/*a`;\n" 1097 " ;"); 1098 verifyFormat("/* ` */ var x = 1; /* ` */", "/* ` */ var x\n= 1; /* ` */"); 1099 // Comment spans multiple template strings. 1100 verifyFormat("var x = `/*a`;\n" 1101 "var y = ` */ `;", 1102 "var x =\n `/*a`;\n" 1103 "var y =\n ` */ `;"); 1104 // Escaped backtick. 1105 verifyFormat("var x = ` \\` a`;\n" 1106 "var y;", 1107 "var x = ` \\` a`;\n" 1108 "var y;"); 1109 } 1110 1111 TEST_F(FormatTestJS, CastSyntax) { 1112 verifyFormat("var x = <type>foo;"); 1113 verifyFormat("var x = foo as type;"); 1114 } 1115 1116 TEST_F(FormatTestJS, TypeArguments) { 1117 verifyFormat("class X<Y> {}"); 1118 verifyFormat("new X<Y>();"); 1119 verifyFormat("foo<Y>(a);"); 1120 verifyFormat("var x: X<Y>[];"); 1121 verifyFormat("class C extends D<E> implements F<G>, H<I> {}"); 1122 verifyFormat("function f(a: List<any> = null) {}"); 1123 verifyFormat("function f(): List<any> {}"); 1124 verifyFormat("function aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa():\n" 1125 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb {}"); 1126 verifyFormat("function aaaaaaaaaa(\n" 1127 " aaaaaaaaaaaaaaaa: aaaaaaaaaaaaaaaaaaa,\n" 1128 " aaaaaaaaaaaaaaaa: aaaaaaaaaaaaaaaaaaa):\n" 1129 " aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa {}"); 1130 } 1131 1132 TEST_F(FormatTestJS, UserDefinedTypeGuards) { 1133 verifyFormat( 1134 "function foo(check: Object):\n" 1135 " check is {foo: string, bar: string, baz: string, foobar: string} {\n" 1136 " return 'bar' in check;\n" 1137 "}\n"); 1138 } 1139 1140 TEST_F(FormatTestJS, OptionalTypes) { 1141 verifyFormat("function x(a?: b, c?, d?) {}"); 1142 verifyFormat("class X {\n" 1143 " y?: z;\n" 1144 " z?;\n" 1145 "}"); 1146 verifyFormat("interface X {\n" 1147 " y?(): z;\n" 1148 "}"); 1149 verifyFormat("x ? 1 : 2;"); 1150 verifyFormat("constructor({aa}: {\n" 1151 " aa?: string,\n" 1152 " aaaaaaaa?: string,\n" 1153 " aaaaaaaaaaaaaaa?: boolean,\n" 1154 " aaaaaa?: List<string>\n" 1155 "}) {}"); 1156 } 1157 1158 TEST_F(FormatTestJS, IndexSignature) { 1159 verifyFormat("var x: {[k: string]: v};"); 1160 } 1161 1162 TEST_F(FormatTestJS, WrapAfterParen) { 1163 verifyFormat("xxxxxxxxxxx(\n" 1164 " aaa, aaa);", 1165 getGoogleJSStyleWithColumns(20)); 1166 verifyFormat("xxxxxxxxxxx(\n" 1167 " aaa, aaa, aaa,\n" 1168 " aaa, aaa, aaa);", 1169 getGoogleJSStyleWithColumns(20)); 1170 verifyFormat("xxxxxxxxxxx(\n" 1171 " aaaaaaaaaaaaaaaaaaaaaaaa,\n" 1172 " function(x) {\n" 1173 " y(); //\n" 1174 " });", 1175 getGoogleJSStyleWithColumns(40)); 1176 verifyFormat("while (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa &&\n" 1177 " bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb) {\n}"); 1178 } 1179 1180 TEST_F(FormatTestJS, JSDocAnnotations) { 1181 verifyFormat("/**\n" 1182 " * @export {this.is.a.long.path.to.a.Type}\n" 1183 " */", 1184 "/**\n" 1185 " * @export {this.is.a.long.path.to.a.Type}\n" 1186 " */", 1187 getGoogleJSStyleWithColumns(20)); 1188 } 1189 1190 TEST_F(FormatTestJS, RequoteStringsSingle) { 1191 verifyFormat("var x = 'foo';", "var x = \"foo\";"); 1192 verifyFormat("var x = 'fo\\'o\\'';", "var x = \"fo'o'\";"); 1193 verifyFormat("var x = 'fo\\'o\\'';", "var x = \"fo\\'o'\";"); 1194 verifyFormat( 1195 "var x =\n" 1196 " 'foo\\'';", 1197 // Code below is 15 chars wide, doesn't fit into the line with the 1198 // \ escape added. 1199 "var x = \"foo'\";", getGoogleJSStyleWithColumns(15)); 1200 // Removes no-longer needed \ escape from ". 1201 verifyFormat("var x = 'fo\"o';", "var x = \"fo\\\"o\";"); 1202 // Code below fits into 15 chars *after* removing the \ escape. 1203 verifyFormat("var x = 'fo\"o';", "var x = \"fo\\\"o\";", 1204 getGoogleJSStyleWithColumns(15)); 1205 } 1206 1207 TEST_F(FormatTestJS, RequoteStringsDouble) { 1208 FormatStyle DoubleQuotes = getGoogleStyle(FormatStyle::LK_JavaScript); 1209 DoubleQuotes.JavaScriptQuotes = FormatStyle::JSQS_Double; 1210 verifyFormat("var x = \"foo\";", DoubleQuotes); 1211 verifyFormat("var x = \"foo\";", "var x = 'foo';", DoubleQuotes); 1212 verifyFormat("var x = \"fo'o\";", "var x = 'fo\\'o';", DoubleQuotes); 1213 } 1214 1215 TEST_F(FormatTestJS, RequoteStringsLeave) { 1216 FormatStyle LeaveQuotes = getGoogleStyle(FormatStyle::LK_JavaScript); 1217 LeaveQuotes.JavaScriptQuotes = FormatStyle::JSQS_Leave; 1218 verifyFormat("var x = \"foo\";", LeaveQuotes); 1219 verifyFormat("var x = 'foo';", LeaveQuotes); 1220 } 1221 1222 } // end namespace tooling 1223 } // end namespace clang 1224