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// 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 --no-stress-flush-bytecode
// Files: test/mjsunit/code-coverage-utils.js
// Test code coverage without explicitly activating it upfront.
TestCoverageNoGC(
"call simple function twice",
`
function f() {}
f();
f();
`,
[{"start":0,"end":25,"count":1},
{"start":0,"end":15,"count":1}]
);
TestCoverageNoGC(
"call arrow function twice",
`
var f = () => 1;
f();
f();
`,
[{"start":0,"end":26,"count":1},
{"start":8,"end":15,"count":1}]
);
TestCoverageNoGC(
"call nested function",
`
function f() {
function g() {}
g();
g();
}
f();
f();
`,
[{"start":0,"end":58,"count":1},
{"start":0,"end":48,"count":1},
{"start":17,"end":32,"count":1}]
);
TestCoverageNoGC(
"call recursive function",
`
function fib(x) {
if (x < 2) return 1;
return fib(x-1) + fib(x-2);
}
fib(5);
`,
[{"start":0,"end":80,"count":1},
{"start":0,"end":72,"count":1}]
);
TestCoverageNoGC(
"https://crbug.com/927464",
`
!function f() { // 0000
function unused() { nop(); } // 0100
nop(); // 0150
}(); // 0200
`,
[{"start":0,"end":199,"count":1},
{"start":1,"end":151,"count":1}
// The unused function is unfortunately not marked as unused in best-effort
// code coverage, as the information about its source range is discarded
// entirely.
]
);