summaryrefslogtreecommitdiff
path: root/deps/v8/test/mjsunit/code-coverage-block.js
blob: c5e7455b1c3e39f70890297c43a7654134ddce12 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
// Copyright 2017 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Flags: --allow-natives-syntax --no-always-opt --block-coverage
// Flags: --harmony-async-iteration
// Files: test/mjsunit/code-coverage-utils.js

%DebugToggleBlockCoverage(true);

TestCoverage(
"call an IIFE",
`
(function f() {})();
`,
[{"start":0,"end":20,"count":1},{"start":1,"end":16,"count":1}]
);

TestCoverage(
"call locally allocated function",
`let f = () => 1; f();`,
[{"start":0,"end":21,"count":1},{"start":8,"end":15,"count":1}]
);

TestCoverage(
"if statements",
`
function g() {}                           // 0000
function f(x) {                           // 0050
  if (x == 42) {                          // 0100
    if (x == 43) g(); else g();           // 0150
  }                                       // 0200
  if (x == 42) { g(); } else { g(); }     // 0250
  if (x == 42) g(); else g();             // 0300
  if (false) g(); else g();               // 0350
  if (false) g();                         // 0400
  if (true) g(); else g();                // 0450
  if (true) g();                          // 0500
}                                         // 0550
f(42);                                    // 0600
f(43);                                    // 0650
`,
[{"start":0,"end":699,"count":1},
 {"start":0,"end":15,"count":11},
 {"start":50,"end":551,"count":2},
 {"start":115,"end":203,"count":1},
 {"start":167,"end":171,"count":0},
 {"start":265,"end":273,"count":1},
 {"start":279,"end":287,"count":1},
 {"start":315,"end":319,"count":1},
 {"start":325,"end":329,"count":1},
 {"start":363,"end":367,"count":0},
 {"start":413,"end":417,"count":0},
 {"start":472,"end":476,"count":0}]

);

TestCoverage(
"if statement (early return)",
`
!function() {                             // 0000
  if (true) {                             // 0050
    nop();                                // 0100
    return;                               // 0150
    nop();                                // 0200
  }                                       // 0250
  nop();                                  // 0300
}()                                       // 0350
`,
[{"start":0,"end":399,"count":1},
 {"start":1,"end":351,"count":1},
 {"start":161,"end":350,"count":0}]
);

TestCoverage(
"if statement (no semi-colon)",
`
!function() {                             // 0000
  if (true) nop()                         // 0050
  if (true) nop(); else nop()             // 0100
  nop();                                  // 0150
}()                                       // 0200
`,
[{"start":0,"end":249,"count":1},
 {"start":1,"end":201,"count":1},
 {"start":124,"end":129,"count":0}]
);

TestCoverage(
"for statements",
`
function g() {}                           // 0000
!function() {                             // 0050
  for (var i = 0; i < 12; i++) g();       // 0100
  for (var i = 0; i < 12; i++) {          // 0150
    g();                                  // 0200
  }                                       // 0250
  for (var i = 0; false; i++) g();        // 0300
  for (var i = 0; true; i++) break;       // 0350
  for (var i = 0; i < 12; i++) {          // 0400
    if (i % 3 == 0) g(); else g();        // 0450
  }                                       // 0500
}();                                      // 0550
`,
[{"start":0,"end":599,"count":1},
 {"start":0,"end":15,"count":36},
 {"start":51,"end":551,"count":1},
 {"start":131,"end":135,"count":12},
 {"start":181,"end":253,"count":12},
 {"start":330,"end":334,"count":0},
 {"start":431,"end":503,"count":12},
 {"start":470,"end":474,"count":4},
 {"start":480,"end":484,"count":8}]
);

TestCoverage(
"for statements pt. 2",
`
function g() {}                           // 0000
!function() {                             // 0050
  let j = 0;                              // 0100
  for (let i = 0; i < 12; i++) g();       // 0150
  for (const i = 0; j < 12; j++) g();     // 0200
  for (j = 0; j < 12; j++) g();           // 0250
  for (;;) break;                         // 0300
}();                                      // 0350
`,
[{"start":0,"end":399,"count":1},
 {"start":0,"end":15,"count":36},
 {"start":51,"end":351,"count":1},
 {"start":181,"end":185,"count":12},
 {"start":233,"end":237,"count":12},
 {"start":277,"end":281,"count":12}]
);

TestCoverage(
"for statements (no semicolon)",
`
function g() {}                           // 0000
!function() {                             // 0050
  for (let i = 0; i < 12; i++) g()        // 0100
  for (let i = 0; i < 12; i++) break      // 0150
  for (let i = 0; i < 12; i++) break; g() // 0200
}();                                      // 0250
`,
[{"start":0,"end":299,"count":1},
 {"start":0,"end":15,"count":13},
 {"start":51,"end":251,"count":1},
 {"start":131,"end":134,"count":12}]
);

TestCoverage(
"for statement (early return)",
`
!function() {                             // 0000
  for (var i = 0; i < 10; i++) {          // 0050
    nop();                                // 0100
    continue;                             // 0150
    nop();                                // 0200
  }                                       // 0250
  nop();                                  // 0300
  for (;;) {                              // 0350
    nop();                                // 0400
    break;                                // 0450
    nop();                                // 0500
  }                                       // 0550
  nop();                                  // 0600
  for (;;) {                              // 0650
    nop();                                // 0700
    return;                               // 0750
    nop();                                // 0800
  }                                       // 0850
  nop();                                  // 0900
}()                                       // 0950
`,
[{"start":0,"end":999,"count":1},
 {"start":1,"end":951,"count":1},
 {"start":81,"end":253,"count":10},
 {"start":163,"end":253,"count":0},
 {"start":460,"end":553,"count":0},
 {"start":761,"end":950,"count":0}]
);

TestCoverage(
"for-of and for-in statements",
`
!function() {                             // 0000
  var i;                                  // 0050
  for (i of [0,1,2,3]) { nop(); }         // 0100
  for (let j of [0,1,2,3]) { nop(); }     // 0150
  for (i in [0,1,2,3]) { nop(); }         // 0200
  for (let j in [0,1,2,3]) { nop(); }     // 0250
  var xs = [{a:0, b:1}, {a:1,b:0}];       // 0300
  for (var {a: x, b: y} of xs) { nop(); } // 0350
}();                                      // 0400
`,
[{"start":0,"end":449,"count":1},
 {"start":1,"end":401,"count":1},
 {"start":123,"end":133,"count":4},
 {"start":177,"end":187,"count":4},
 {"start":223,"end":233,"count":4},
 {"start":277,"end":287,"count":4},
 {"start":381,"end":391,"count":2}]
);

TestCoverage(
"for-await-of statements",
`
!async function() {                       // 0000
  for await (var x of [0,1,2,3]) {        // 0050
    nop();                                // 0100
  }                                       // 0150
}();                                      // 0200
%RunMicrotasks();                         // 0250
`,
[{"start":0,"end":299,"count":1},
 {"start":1,"end":201,"count":6},  // TODO(jgruber): Invocation count is off.
 {"start":83,"end":153,"count":4},
 {"start":153,"end":200,"count":1}]
);

TestCoverage(
"while and do-while statements",
`
function g() {}                           // 0000
!function() {                             // 0050
  var i;                                  // 0100
  i = 0; while (i < 12) i++;              // 0150
  i = 0; while (i < 12) { g(); i++; }     // 0200
  i = 0; while (false) g();               // 0250
  i = 0; while (true) break;              // 0300
                                          // 0350
  i = 0; do i++; while (i < 12);          // 0400
  i = 0; do { g(); i++; }                 // 0450
         while (i < 12);                  // 0500
  i = 0; do { g(); } while (false);       // 0550
  i = 0; do { break; } while (true);      // 0600
}();                                      // 0650
`,
[{"start":0,"end":699,"count":1},
 {"start":0,"end":15,"count":25},
 {"start":51,"end":651,"count":1},
 {"start":174,"end":178,"count":12},
 {"start":224,"end":237,"count":12},
 {"start":273,"end":277,"count":0},
 {"start":412,"end":416,"count":12},
 {"start":462,"end":475,"count":12},
 {"start":620,"end":622,"count":0}]
);

TestCoverage(
"while statement (early return)",
`
!function() {                             // 0000
  let i = 0;                              // 0050
  while (i < 10) {                        // 0100
    i++;                                  // 0150
    continue;                             // 0200
    nop();                                // 0250
  }                                       // 0300
  nop();                                  // 0350
  while (true) {                          // 0400
    nop();                                // 0450
    break;                                // 0500
    nop();                                // 0550
  }                                       // 0600
  nop();                                  // 0650
  while (true) {                          // 0700
    nop();                                // 0750
    return;                               // 0800
    nop();                                // 0850
  }                                       // 0900
  nop();                                  // 0950
}()                                       // 1000
`,
[{"start":0,"end":1049,"count":1},
 {"start":1,"end":1001,"count":1},
 {"start":117,"end":303,"count":10},
 {"start":213,"end":303,"count":0},
 {"start":510,"end":603,"count":0},
 {"start":811,"end":1000,"count":0}]
);

TestCoverage(
"do-while statement (early return)",
`
!function() {                             // 0000
  let i = 0;                              // 0050
  do {                                    // 0100
    i++;                                  // 0150
    continue;                             // 0200
    nop();                                // 0250
  } while (i < 10);                       // 0300
  nop();                                  // 0350
  do {                                    // 0400
    nop();                                // 0450
    break;                                // 0500
    nop();                                // 0550
  } while (true);                         // 0600
  nop();                                  // 0650
  do {                                    // 0700
    nop();                                // 0750
    return;                               // 0800
    nop();                                // 0850
  } while (true);                         // 0900
  nop();                                  // 0950
}()                                       // 1000
`,
[{"start":0,"end":1049,"count":1},
 {"start":1,"end":1001,"count":1},
 {"start":105,"end":303,"count":10},
 {"start":213,"end":303,"count":0},
 {"start":510,"end":603,"count":0},
 {"start":811,"end":1000,"count":0}]
);

TestCoverage(
"return statements",
`
!function() { nop(); return; nop(); }();  // 0000
!function() { nop(); return 42;           // 0050
              nop(); }();                 // 0100
`,
[{"start":0,"end":149,"count":1},
 {"start":1,"end":37,"count":1},
 {"start":28,"end":36,"count":0},
 {"start":51,"end":122,"count":1},
 {"start":81,"end":121,"count":0}]
);

TestCoverage(
"try/catch/finally statements",
`
!function() {                             // 0000
  try { nop(); } catch (e) { nop(); }     // 0050
  try { nop(); } finally { nop(); }       // 0100
  try {                                   // 0150
    try { throw 42; } catch (e) { nop(); }// 0200
  } catch (e) { nop(); }                  // 0250
  try {                                   // 0300
    try { throw 42; } finally { nop(); }  // 0350
  } catch (e) { nop(); }                  // 0400
  try {                                   // 0450
    throw 42;                             // 0500
  } catch (e) {                           // 0550
    nop();                                // 0600
  } finally {                             // 0650
    nop();                                // 0700
  }                                       // 0750
}();                                      // 0800
`,
[{"start":0,"end":849,"count":1},
 {"start":1,"end":801,"count":1},
 {"start":67,"end":87,"count":0},
 {"start":219,"end":222,"count":0},
 {"start":254,"end":274,"count":0},
 {"start":369,"end":372,"count":0},
 {"start":390,"end":404,"count":0},
 {"start":513,"end":554,"count":0}]
);

TestCoverage("try/catch/finally statements with early return",
`
!function() {                             // 0000
  try { throw 42; } catch (e) { return; } // 0050
  nop();                                  // 0100
}();                                      // 0150
!function() {                             // 0200
  try { throw 42; } catch (e) {}          // 0250
  finally { return; }                     // 0300
  nop();                                  // 0350
}();                                      // 0400
`,
[{"start":0,"end":449,"count":1},
 {"start":1,"end":151,"count":1},
 {"start":67,"end":70,"count":0},
 {"start":89,"end":150,"count":0},
 {"start":201,"end":401,"count":1},
 {"start":267,"end":270,"count":0},
 {"start":319,"end":400,"count":0}]
);

TestCoverage(
"early return in blocks",
`
!function() {                             // 0000
  try { throw 42; } catch (e) { return; } // 0050
  nop();                                  // 0100
}();                                      // 0150
!function() {                             // 0200
  try { nop(); } finally { return; }      // 0250
  nop();                                  // 0300
}();                                      // 0350
!function() {                             // 0400
  {                                       // 0450
    let x = 42;                           // 0500
    return () => x;                       // 0550
  }                                       // 0600
  nop();                                  // 0650
}();                                      // 0700
!function() {                             // 0750
  try { throw 42; } catch (e) {           // 0800
    return;                               // 0850
    nop();                                // 0900
  }                                       // 0950
  nop();                                  // 1000
}();                                      // 1050
`,
[{"start":0,"end":1099,"count":1},
 {"start":1,"end":151,"count":1},
 {"start":67,"end":70,"count":0},
 {"start":89,"end":150,"count":0},
 {"start":201,"end":351,"count":1},
 {"start":284,"end":350,"count":0},
 {"start":401,"end":701,"count":1},
 {"start":569,"end":700,"count":0},
 {"start":561,"end":568,"count":0},  // TODO(jgruber): Sorting.
 {"start":751,"end":1051,"count":1},
 {"start":817,"end":820,"count":0},
 {"start":861,"end":1050,"count":0}]
);

TestCoverage(
"switch statements",
`
!function() {                             // 0000
  var x = 42;                             // 0050
  switch (x) {                            // 0100
    case 41: nop(); break;                // 0150
    case 42: nop(); break;                // 0200
    default: nop(); break;                // 0250
  }                                       // 0300
}();                                      // 0350
`,
[{"start":0,"end":399,"count":1},
 {"start":1,"end":351,"count":1},
 {"start":154,"end":204,"count":0},
 {"start":226,"end":303,"count":0}]
);

TestCoverage(
"labeled break statements",
`
!function() {                             // 0000
  var x = 42;                             // 0050
  l0: switch (x) {                        // 0100
  case 41: return;                        // 0150
  case 42:                                // 0200
    switch (x) { case 42: break l0; }     // 0250
    break;                                // 0300
  }                                       // 0350
  l1: for (;;) {                          // 0400
    for (;;) break l1;                    // 0450
  }                                       // 0500
  l2: while (true) {                      // 0550
    while (true) break l2;                // 0600
  }                                       // 0650
  l3: do {                                // 0700
    do { break l3; } while (true);        // 0750
  } while (true);                         // 0800
  l4: { break l4; }                       // 0850
  l5: for (;;) for (;;) break l5;         // 0900
}();                                      // 0950
`,
[{"start":0,"end":999,"count":1},
 {"start":1,"end":951,"count":1},
 {"start":152,"end":202,"count":0},
 {"start":285,"end":353,"count":0},
 {"start":472,"end":503,"count":0},
 {"start":626,"end":653,"count":0},
 {"start":768,"end":803,"count":0},
 {"start":867,"end":869,"count":0}]
);

TestCoverage(
"labeled continue statements",
`
!function() {                             // 0000
  l0: for (var i0 = 0; i0 < 2; i0++) {    // 0050
    for (;;) continue l0;                 // 0100
  }                                       // 0150
  var i1 = 0;                             // 0200
  l1: while (i1 < 2) {                    // 0250
    i1++;                                 // 0300
    while (true) continue l1;             // 0350
  }                                       // 0400
  var i2 = 0;                             // 0450
  l2: do {                                // 0500
    i2++;                                 // 0550
    do { continue l2; } while (true);     // 0600
  } while (i2 < 2);                       // 0650
}();                                      // 0700
`,
[{"start":0,"end":749,"count":1},
 {"start":1,"end":701,"count":1},
 {"start":87,"end":153,"count":2},
 {"start":125,"end":153,"count":0},
 {"start":271,"end":403,"count":2},
 {"start":379,"end":403,"count":0},
 {"start":509,"end":653,"count":2},
 {"start":621,"end":653,"count":0}]
);

TestCoverage(
"conditional expressions",
`
var TRUE = true;                          // 0000
var FALSE = false;                        // 0050
!function() {                             // 0100
  TRUE ? nop() : nop();                   // 0150
  true ? nop() : nop();                   // 0200
  false ? nop() : nop();                  // 0250
  FALSE ? TRUE ? nop()                    // 0300
               : nop()                    // 0350
        : nop();                          // 0400
  TRUE ? FALSE ? nop()                    // 0450
               : nop()                    // 0500
       : nop();                           // 0550
  TRUE ? nop() : FALSE ? nop()            // 0600
                       : nop();           // 0650
  FALSE ? nop() : TRUE ? nop()            // 0700
                       : nop();           // 0750
}();                                      // 0800
`,
[{"start":0,"end":849,"count":1},
 {"start":101,"end":801,"count":1},
 {"start":167,"end":172,"count":0},
 {"start":217,"end":222,"count":0},
 {"start":260,"end":265,"count":0},
 {"start":310,"end":372,"count":0},
 {"start":467,"end":472,"count":0},
 {"start":559,"end":564,"count":0},
 {"start":617,"end":680,"count":0},
 {"start":710,"end":715,"count":0},
 {"start":775,"end":780,"count":0}]
);

TestCoverage(
"yield expressions",
`
const it = function*() {                  // 0000
  yield nop();                            // 0050
  yield nop() ? nop() : nop()             // 0100
  return nop();                           // 0150
}();                                      // 0200
it.next(); it.next();                     // 0250
`,
[{"start":0,"end":299,"count":1},
 {"start":11,"end":201,"count":3},
 {"start":64,"end":116,"count":1},
 {"start":116,"end":121,"count":0},
 {"start":124,"end":129,"count":1},
 {"start":129,"end":200,"count":0}]
);

TestCoverage(
"yield expressions (.return and .throw)",
`
const it0 = function*() {                 // 0000
  yield 1; yield 2; yield 3;              // 0050
}();                                      // 0100
it0.next(); it0.return();                 // 0150
try {                                     // 0200
  const it1 = function*() {               // 0250
    yield 1; yield 2; yield 3;            // 0300
  }();                                    // 0350
  it1.next(); it1.throw();                // 0400
} catch (e) {}                            // 0450
`,
[{"start":0,"end":499,"count":1},
 {"start":12,"end":101,"count":3},
 {"start":60,"end":100,"count":0},
 {"start":264,"end":353,"count":3},
 {"start":312,"end":352,"count":0}]
);

TestCoverage("yield expressions (.return and try/catch/finally)",
`
const it = function*() {                  // 0000
  try {                                   // 0050
    yield 1; yield 2; yield 3;            // 0100
  } catch (e) {                           // 0150
    nop();                                // 0200
  } finally { nop(); }                    // 0250
  yield 4;                                // 0300
}();                                      // 0350
it.next(); it.return();                   // 0450
`,
[{"start":0,"end":449,"count":1},
 {"start":11,"end":351,"count":3},
 {"start":112,"end":254,"count":0},
 {"start":254,"end":272,"count":1},
 {"start":272,"end":350,"count":0}]
);

TestCoverage("yield expressions (.throw and try/catch/finally)",
`
const it = function*() {                  // 0000
  try {                                   // 0050
    yield 1; yield 2; yield 3;            // 0100
  } catch (e) {                           // 0150
    nop();                                // 0200
  } finally { nop(); }                    // 0250
  yield 4;                                // 0300
}();                                      // 0350
it.next(); it.throw(42);                  // 0550
`,
[{"start":0,"end":449,"count":1},
 {"start":11,"end":351,"count":3},
 {"start":112,"end":154,"count":0},
 {"start":154,"end":310,"count":1},
 {"start":310,"end":350,"count":0}]
);

TestCoverage(
"yield* expressions",
`
const it = function*() {                  // 0000
  yield* gen();                           // 0050
  yield* nop() ? gen() : gen()            // 0100
  return gen();                           // 0150
}();                                      // 0200
it.next(); it.next(); it.next();          // 0250
it.next(); it.next(); it.next();          // 0300
`,
[{"start":0,"end":349,"count":1},
 {"start":11,"end":201,"count":7},
 {"start":65,"end":117,"count":1},
 {"start":117,"end":122,"count":0},
 {"start":125,"end":130,"count":1},
 {"start":130,"end":200,"count":0}]
);

TestCoverage(
"yield* expressions (.return and .throw)",
`
const it0 = function*() {                 // 0000
  yield* gen(); yield* gen(); yield 3;    // 0050
}();                                      // 0100
it0.next(); it0.return();                 // 0150
try {                                     // 0200
  const it1 = function*() {               // 0250
    yield* gen(); yield* gen(); yield 3;  // 0300
  }();                                    // 0350
  it1.next(); it1.throw();                // 0400
} catch (e) {}                            // 0450
`,
[{"start":0,"end":499,"count":1},
 {"start":12,"end":101,"count":3},
 {"start":65,"end":100,"count":0},
 {"start":264,"end":353,"count":3},
 {"start":317,"end":352,"count":0}]
);

TestCoverage(
"await expressions",
`
async function f() {                      // 0000
  await 42;                               // 0050
  await 42;                               // 0100
};                                        // 0150
f();                                      // 0200
%RunMicrotasks();                         // 0250
`,
[{"start":0,"end":299,"count":1},
 {"start":0,"end":151,"count":3},
 {"start":61,"end":150,"count":1}]
);

%DebugToggleBlockCoverage(false);