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cf43ccdf9b
Fix the JSON stringification to output a more meaningful string when an object cannot be normally converted to a JSON string, such as when the object contains cyclic references that would cause `JSON.stringify()` to throw an error. Closes #10085
16 lines
614 B
JavaScript
16 lines
614 B
JavaScript
'use strict';
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describe('toDebugString', function() {
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it('should convert its argument to a string', function() {
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expect(toDebugString('string')).toEqual('string');
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expect(toDebugString(123)).toEqual('123');
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expect(toDebugString({a:{b:'c'}})).toEqual('{"a":{"b":"c"}}');
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expect(toDebugString(function fn() { var a = 10; })).toEqual('function fn()');
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expect(toDebugString()).toEqual('undefined');
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var a = { };
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a.a = a;
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expect(toDebugString(a)).toEqual('{"a":"<<already seen>>"}');
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expect(toDebugString([a,a])).toEqual('[{"a":"<<already seen>>"},"<<already seen>>"]');
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});
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});
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