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50 lines
1.6 KiB
JavaScript
50 lines
1.6 KiB
JavaScript
// This file was written by Andy Wingo <wingo@igalia.com> and originally
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// contributed to V8 as generators-objects.js, available here:
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//
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// http://code.google.com/p/v8/source/browse/branches/bleeding_edge/test/mjsunit/harmony/generators-objects.js
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// Test aspects of the generator runtime.
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// Test the properties and prototype of a generator object.
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function TestGeneratorObject() {
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function* g() { yield 1; }
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var iter = g();
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assertEq(Object.getPrototypeOf(iter), g.prototype);
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assertTrue(iter instanceof g);
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assertEq(String(iter), "[object Generator]");
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assertDeepEq(Object.getOwnPropertyNames(iter), []);
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assertNotEq(g(), iter);
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}
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TestGeneratorObject();
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// Test the methods of generator objects.
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function TestGeneratorObjectMethods() {
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function* g() { yield 1; }
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var iter = g();
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assertEq(iter.next.length, 1);
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assertEq(iter.return.length, 1);
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assertEq(iter.throw.length, 1);
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function TestNonGenerator(non_generator) {
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assertThrowsInstanceOf(function() { iter.next.call(non_generator); }, TypeError);
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assertThrowsInstanceOf(function() { iter.next.call(non_generator, 1); }, TypeError);
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assertThrowsInstanceOf(function() { iter.return.call(non_generator, 1); }, TypeError);
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assertThrowsInstanceOf(function() { iter.throw.call(non_generator, 1); }, TypeError);
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assertThrowsInstanceOf(function() { iter.close.call(non_generator); }, TypeError);
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}
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TestNonGenerator(1);
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TestNonGenerator({});
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TestNonGenerator(function(){});
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TestNonGenerator(g);
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TestNonGenerator(g.prototype);
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}
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TestGeneratorObjectMethods();
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if (typeof reportCompare == "function")
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reportCompare(true, true);
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