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Add deepCompare function to utilities to easy and reliably compare js variables. Comments By: Langbart, Stan, asterix Differential Revision: D4521 This was SVN commit r26583.
40 lines
1.7 KiB
JavaScript
40 lines
1.7 KiB
JavaScript
function test_deepCompare()
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{
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TS_ASSERT(deepCompare({}, {}));
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TS_ASSERT(deepCompare([], []));
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TS_ASSERT(deepCompare({ "foo": NaN }, { "foo": NaN }));
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TS_ASSERT(!deepCompare({ "foo": Infinity }, { "foo": NaN }));
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TS_ASSERT(!deepCompare({ "foo": NaN }, { "foo": Infinity }));
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TS_ASSERT(!deepCompare({ "foo": NaN }, { "bar": NaN }));
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TS_ASSERT(!deepCompare({ "foo": NaN }, { "foo": NaN, "bar": NaN }));
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TS_ASSERT(!deepCompare({ "foo": NaN, "bar": NaN }, { "foo": NaN }));
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TS_ASSERT(deepCompare(undefined, undefined));
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TS_ASSERT(deepCompare([undefined], [undefined]));
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TS_ASSERT(deepCompare({ "foo": undefined }, { "foo": undefined }));
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TS_ASSERT(!deepCompare({ "foo": undefined }, {}));
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// Ordering in objects does not matter.
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TS_ASSERT(deepCompare({ "foo": NaN, "bar": NaN }, { "foo": NaN, "bar": NaN }));
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TS_ASSERT(deepCompare({ "foo": NaN, "bar": NaN }, { "bar": NaN, "foo": NaN }));
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// Test some other JS structures.
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TS_ASSERT(deepCompare(new Set(), new Set()));
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TS_ASSERT(deepCompare(new Map(), new Map()));
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TS_ASSERT(!deepCompare(new Set(), new Map()));
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TS_ASSERT(!deepCompare(new Set([0]), new Set([1])));
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TS_ASSERT(!deepCompare(new Set([undefined]), new Set([null])));
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TS_ASSERT(deepCompare(new Set([NaN]), new Set([NaN])));
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TS_ASSERT(deepCompare(new Set([0, 0, 0]), new Set([0])));
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// Ordering in arrays is relevant.
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TS_ASSERT(deepCompare([1, 2, 3], [1, 2, 3]));
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TS_ASSERT(!deepCompare([1, 2, 3], [3, 1, 2]));
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// Some nestling.
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TS_ASSERT(deepCompare({ "foo": new Set([1, 2, { "baz": Infinity }]), "bar": [new Set([9]), { "foo": [0, 1, 2] }] },
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{ "foo": new Set([1, 2, { "baz": Infinity }]), "bar": [new Set([9]), { "foo": [0, 1, 2] }] }));
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}
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test_deepCompare();
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