code-coverage-class-fields.js 5.55 KB
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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 --harmony-public-fields --harmony-static-fields
// Files: test/mjsunit/code-coverage-utils.js

%DebugToggleBlockCoverage(true);

TestCoverage(
"class with no fields",
`class X {                                 // 000
};                                         // 050
`,
  [
    { start: 0, end: 98, count: 1 },
    { start: 0, end: 0, count: 0 },
  ]
);

TestCoverage(
"class that's not created",
`class X {                                 // 000
  x = function() { }                       // 050
};                                         // 100
`,
  [
    { start: 0, end: 148, count: 1 },
    { start: 0, end: 0, count: 0 },
    { start: 51, end: 69, count: 0 },
  ]
);

TestCoverage(
"class with field thats not called",
`class X {                                 // 000
  x = function() { }                       // 050
};                                         // 100
let x = new X();                           // 150
`,
  [
    { start: 0, end: 198, count: 1 },
    { start: 0, end: 0, count: 1 },
    { start: 51, end: 69, count: 1 },
    { start: 55, end: 69, count: 0 }
  ]
);

TestCoverage(
"class field",
`class X {                                 // 000
  x = function() { }                       // 050
};                                         // 100
let x = new X();                           // 150
x.x();                                     // 200
`,
  [
    { start: 0, end: 248, count: 1 },
    { start: 0, end: 0, count: 1 },
    { start: 51, end: 69, count: 1 },
    { start: 55, end: 69, count: 1 }
  ]
);

TestCoverage(
"non contiguous class field",
`class X {                                 // 000
  x = function() { }                       // 050
  foo() { }                                // 100
  y = function() {}                        // 150
};                                         // 200
let x = new X();                           // 250
x.x();                                     // 300
x.y();                                     // 350
`,
  [
    { start: 0, end: 398, count: 1 },
    { start: 0, end: 0, count: 1 },
    { start: 51, end: 168, count: 1 },
    { start: 55, end: 69, count: 1 },
    { start: 101, end: 110, count: 0 },
    { start: 155, end: 168, count: 1 },
  ]
);

TestCoverage(
"non contiguous class field thats called",
`class X {                                 // 000
  x = function() { }                       // 050
  foo() { }                                // 100
  y = function() {}                        // 150
};                                         // 200
let x = new X();                           // 250
x.x();                                     // 300
x.y();                                     // 350
x.foo();                                   // 400
`,
  [
    { start: 0, end: 448, count: 1 },
    { start: 0, end: 0, count: 1 },
    { start: 51, end: 168, count: 1 },
    { start: 55, end: 69, count: 1 },
    { start: 101, end: 110, count: 1 },
    { start: 155, end: 168, count: 1 },
  ]
);

TestCoverage(
"class with initializer iife",
`class X {                                 // 000
  x = (function() { })()                   // 050
};                                         // 100
let x = new X();                           // 150
`,
  [
    { start: 0, end: 198, count: 1 },
    { start: 0, end: 0, count: 1 },
    { start: 51, end: 73, count: 1 },
    { start: 56, end: 70, count: 1 }
  ]
);

TestCoverage(
"class with computed field",
`
function f() {};                           // 000
class X {                                  // 050
  [f()] = (function() { })()               // 100
};                                         // 150
let x = new X();                           // 200
`,
  [
    { start: 0, end: 249, count: 1 },
    { start: 0, end: 15, count: 1 },
    { start: 50, end: 50, count: 1 },
    { start: 102, end: 128, count: 1 },
    { start: 111, end: 125, count: 1 }
  ]
);

TestCoverage(
"static class field that's not called",
`class X {                                 // 000
  static x = function() { }                // 050
};                                         // 100
`,
  [
    { start: 0, end: 148, count: 1 },
    { start: 0, end: 0, count: 0 },
    { start: 51, end: 76, count: 1 },
    { start: 62, end: 76, count: 0 }
  ]
);

TestCoverage(
"static class field",
`class X {                                 // 000
  static x = function() { }                // 050
};                                         // 100
X.x();                                     // 150
`,
  [
    { start: 0, end: 198, count: 1 },
    { start: 0, end: 0, count: 0 },
    { start: 51, end: 76, count: 1 },
    { start: 62, end: 76, count: 1 }
  ]
);

TestCoverage(
"static class field with iife",
`class X {                                 // 000
  static x = (function() { })()            // 050
};                                         // 100
`,
  [
    { start: 0, end: 148, count: 1 },
    { start: 0, end: 0, count: 0 },
    { start: 51, end: 80, count: 1 },
    { start: 63, end: 77, count: 1 }
  ]
);

TestCoverage(
"computed static class field",
`
function f() {}                            // 000
class X {                                  // 050
  static [f()] = (function() { })()        // 100
};                                         // 150
`,
  [
    { start: 0, end: 199, count: 1 },
    { start: 0, end: 15, count: 1 },
    { start: 50, end: 50, count: 0 },
    { start: 102, end: 135, count: 1 },
    { start: 118, end: 132, count: 1 }
  ]
);