84 lines
4.0 KiB
JavaScript
84 lines
4.0 KiB
JavaScript
description("This test checks the String.prototype.padEnd.");
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shouldBe('String.prototype.padEnd.length', '1');
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shouldBeEqualToString('String.prototype.padEnd.name', 'padEnd');
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shouldBe('Object.getOwnPropertyDescriptor(String.prototype, "padEnd").configurable', 'true');
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shouldBe('Object.getOwnPropertyDescriptor(String.prototype, "padEnd").enumerable', 'false');
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shouldBe('Object.getOwnPropertyDescriptor(String.prototype, "padEnd").writable', 'true');
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shouldBe('Object.getOwnPropertyDescriptor(String.prototype, "padEnd").get', 'undefined');
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shouldBe('Object.getOwnPropertyDescriptor(String.prototype, "padEnd").set', 'undefined');
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shouldBe('Object.getOwnPropertyDescriptor(String.prototype, "padEnd").value', 'String.prototype.padEnd');
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shouldBe("'foo'.padEnd()", "'foo'");
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shouldBe("'foo'.padEnd(+0)", "'foo'");
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shouldBe("'foo'.padEnd(-0)", "'foo'");
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shouldBe("'foo'.padEnd(1)", "'foo'");
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shouldBe("'foo'.padEnd(2)", "'foo'");
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shouldBe("'foo'.padEnd(-2)", "'foo'");
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shouldBe("'foo'.padEnd(10)", "'foo '");
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shouldBe("'foo'.padEnd(10, undefined)", "'foo '");
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shouldBe("'foo'.padEnd(10, 'x')", "'fooxxxxxxx'");
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shouldBe("'foo'.padEnd(10.5, 'z')", "'foozzzzzzz'");
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shouldBe("'foo'.padEnd(10, 'bar')", "'foobarbarb'");
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shouldBe("'foo'.padEnd(10, '123456789')", "'foo1234567'");
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shouldBe("'foo'.padEnd(999, '')", "'foo'");
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shouldBe("''.padEnd(1, '')", "''");
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shouldBe("''.padEnd(2, 'bar')", "'ba'");
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shouldBe("'x'.padEnd(2, 'bar')", "'xb'");
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shouldBe("'xx'.padEnd(2, 'bar')", "'xx'");
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shouldBe("'xx'.padEnd(Math.PI, 'bar')", "'xxb'");
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// Coerce length (ToLength).
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shouldBe("''.padEnd(true, 'ABC')", "'A'");
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shouldBe("''.padEnd(false, 'ABC')", "''");
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shouldBe("''.padEnd(null, 'ABC')", "''");
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shouldBe("''.padEnd({}, 'ABC')", "''");
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shouldBe("''.padEnd(NaN, 'ABC')", "''");
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// Coerce fillString (ToString).
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shouldBe("'ABC'.padEnd(10, true)", "'ABCtruetru'");
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shouldBe("'ABC'.padEnd(10, false)", "'ABCfalsefa'");
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shouldBe("'ABC'.padEnd(10, null)", "'ABCnullnul'");
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shouldBe("'ABC'.padEnd(10, {})", "'ABC[object'");
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shouldBe("'ABC'.padEnd(10, NaN)", "'ABCNaNNaNN'");
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// Check out of memory errors.
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shouldNotThrow('"x".padEnd(Infinity, "")'); // Empty string filler is fine.
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shouldThrow('"x".padEnd(Infinity, "x")', "'RangeError: Out of memory'");
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shouldThrow('"x".padEnd(0x80000000, "x")', "'RangeError: Out of memory'");
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shouldThrow('"x".padEnd(0xFFFFFFFF, "x")', "'RangeError: Out of memory'");
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// Check side-effects.
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let sideEffects = "";
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let thisObject = new String("foo bar");
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let lengthObject = new Number(10);
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let fillObject = new String("X");
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sideEffects = "";
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thisObject.toString = function() { sideEffects += "A"; return this; };
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lengthObject.valueOf = function() { sideEffects += "B"; return this; };
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fillObject.toString = function() { sideEffects += "C"; return this; };
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shouldBeEqualToString("String.prototype.padEnd.call(thisObject, lengthObject, fillObject)", "foo barXXX");
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shouldBeEqualToString("sideEffects", "ABC");
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sideEffects = "";
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thisObject.toString = function() { throw "ERROR"; };
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lengthObject.valueOf = function() { sideEffects += "B"; return this; };
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fillObject.toString = function() { sideEffects += "C"; return this; };
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shouldThrow("String.prototype.padEnd.call(thisObject, lengthObject, fillObject)", "'ERROR'");
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shouldBeEqualToString("sideEffects", "");
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sideEffects = "";
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thisObject.toString = function() { sideEffects += "A"; return this; };
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lengthObject.valueOf = function() { throw "ERROR"; };
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fillObject.toString = function() { sideEffects += "C"; return this; };
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shouldThrow("String.prototype.padEnd.call(thisObject, lengthObject, fillObject)", "'ERROR'");
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shouldBeEqualToString("sideEffects", "A");
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sideEffects = "";
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thisObject.toString = function() { sideEffects += "A"; return this; };
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lengthObject.valueOf = function() { sideEffects += "B"; return this; };
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fillObject.toString = function() { throw "ERROR"; return this; };
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shouldThrow("String.prototype.padEnd.call(thisObject, lengthObject, fillObject)", "'ERROR'");
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shouldBeEqualToString("sideEffects", "AB");
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