blob: c5e7455b1c3e39f70890297c43a7654134ddce12 [file] [log] [blame]
// 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);