OLD | NEW |
1 // Copyright 2017 the V8 project authors. All rights reserved. | 1 // Copyright 2017 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Flags: --allow-natives-syntax --no-always-opt | 5 // Flags: --allow-natives-syntax --no-always-opt |
6 | 6 |
7 // Test code coverage without explicitly activating it upfront. | 7 // Test code coverage without explicitly activating it upfront. |
8 | 8 |
9 function GetCoverage(source) { | 9 function GetCoverage(source) { |
10 for (var script of %DebugCollectCoverage()) { | 10 for (var script of %DebugCollectCoverage()) { |
11 if (script.script.source == source) return script.toplevel; | 11 if (script.script.source == source) return script; |
12 } | 12 } |
13 return undefined; | 13 return undefined; |
14 } | 14 } |
15 | 15 |
16 function ApplyCoverageToSource(source, range) { | |
17 var content = ""; | |
18 var cursor = range.start; | |
19 if (range.inner) for (var inner of range.inner) { | |
20 content += source.substring(cursor, inner.start); | |
21 content += ApplyCoverageToSource(source, inner); | |
22 cursor = inner.end; | |
23 } | |
24 content += source.substring(cursor, range.end); | |
25 return `[${content}](${range.name}:${range.count})`; | |
26 } | |
27 | |
28 function TestCoverage(name, source, expectation) { | 16 function TestCoverage(name, source, expectation) { |
29 source = source.trim(); | 17 source = source.trim(); |
30 expectation = expectation.trim(); | |
31 eval(source); | 18 eval(source); |
32 var coverage = GetCoverage(source); | 19 var coverage = GetCoverage(source); |
33 var result = ApplyCoverageToSource(source, coverage); | 20 var result = JSON.stringify(coverage); |
34 print(result); | 21 print(result); |
35 assertEquals(expectation, result, name + " failed"); | 22 assertEquals(JSON.stringify(expectation), result, name + " failed"); |
36 } | 23 } |
37 | 24 |
38 TestCoverage( | 25 TestCoverage( |
39 "call simple function twice", | 26 "call simple function twice", |
40 ` | 27 ` |
41 function f() {} | 28 function f() {} |
42 f(); | 29 f(); |
43 f(); | 30 f(); |
44 `, | 31 `, |
45 ` | 32 [{"start":0,"end":25,"count":1}, |
46 [[function f() {}](f:2) | 33 {"start":0,"end":15,"count":2}] |
47 f(); | |
48 f();](:1) | |
49 ` | |
50 ); | 34 ); |
51 | 35 |
52 TestCoverage( | 36 TestCoverage( |
53 "call arrow function twice", | 37 "call arrow function twice", |
54 ` | 38 ` |
55 var f = () => 1; | 39 var f = () => 1; |
56 f(); | 40 f(); |
57 f(); | 41 f(); |
58 `, | 42 `, |
59 ` | 43 [{"start":0,"end":26,"count":1}, |
60 [var f = [() => 1](f:2); | 44 {"start":8,"end":15,"count":2}] |
61 f(); | |
62 f();](:1) | |
63 ` | |
64 ); | 45 ); |
65 | 46 |
66 TestCoverage( | 47 TestCoverage( |
67 "call nested function", | 48 "call nested function", |
68 ` | 49 ` |
69 function f() { | 50 function f() { |
70 function g() {} | 51 function g() {} |
71 g(); | 52 g(); |
72 g(); | 53 g(); |
73 } | 54 } |
74 f(); | 55 f(); |
75 f(); | 56 f(); |
76 `, | 57 `, |
77 ` | 58 [{"start":0,"end":58,"count":1}, |
78 [[function f() { | 59 {"start":0,"end":48,"count":2}, |
79 [function g() {}](g:4) | 60 {"start":17,"end":32,"count":4}] |
80 g(); | |
81 g(); | |
82 }](f:2) | |
83 f(); | |
84 f();](:1) | |
85 | |
86 ` | |
87 ); | 61 ); |
88 | 62 |
89 TestCoverage( | 63 TestCoverage( |
90 "call recursive function", | 64 "call recursive function", |
91 ` | 65 ` |
92 function fib(x) { | 66 function fib(x) { |
93 if (x < 2) return 1; | 67 if (x < 2) return 1; |
94 return fib(x-1) + fib(x-2); | 68 return fib(x-1) + fib(x-2); |
95 } | 69 } |
96 fib(5); | 70 fib(5); |
97 `, | 71 `, |
98 ` | 72 [{"start":0,"end":80,"count":1}, |
99 [[function fib(x) { | 73 {"start":0,"end":72,"count":15}] |
100 if (x < 2) return 1; | |
101 return fib(x-1) + fib(x-2); | |
102 }](fib:15) | |
103 fib(5);](:1) | |
104 ` | |
105 ); | 74 ); |
OLD | NEW |