76 lines
2.5 KiB
JavaScript
76 lines
2.5 KiB
JavaScript
test("basic functionality", () => {
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expect(JSON.parse).toHaveLength(2);
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const properties = [
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["5", 5],
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["null", null],
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["true", true],
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["false", false],
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['"test"', "test"],
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['[1,2,"foo"]', [1, 2, "foo"]],
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['{"foo":1,"bar":"baz"}', { foo: 1, bar: "baz" }],
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];
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properties.forEach(testCase => {
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expect(JSON.parse(testCase[0])).toEqual(testCase[1]);
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});
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});
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test("syntax errors", () => {
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[
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undefined,
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NaN,
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-NaN,
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Infinity,
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-Infinity,
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'{ "foo" }',
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'{ foo: "bar" }',
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"[1,2,3,]",
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"[1,2,3, ]",
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'{ "foo": "bar",}',
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'{ "foo": "bar", }',
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"",
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].forEach(test => {
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expect(() => {
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JSON.parse(test);
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}).toThrow(SyntaxError);
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});
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});
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test("negative zero", () => {
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["-0", " \n-0", "-0 \t", "\n\t -0\n ", "-0.0"].forEach(testCase => {
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expect(JSON.parse(testCase)).toEqual(-0.0);
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});
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expect(JSON.parse(-0)).toEqual(0);
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});
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// The underlying parser resolves decimal numbers by storing the decimal portion in an integer
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// This test handles a regression where the decimal portion was only using a u32 vs. u64
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// and would fail to parse.
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test("long decimal parse", () => {
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expect(JSON.parse("1644452550.6489999294281")).toEqual(1644452550.6489999294281);
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});
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test("does not truncate large integers", () => {
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expect(JSON.parse("1234567890123")).toEqual(1234567890123);
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expect(JSON.parse("4294967295")).toEqual(4294967295);
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expect(JSON.parse("4294967296")).toEqual(4294967296);
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expect(JSON.parse("4294967297")).toEqual(4294967297);
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expect(JSON.parse("4294967298")).toEqual(4294967298);
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expect(JSON.parse("2147483647")).toEqual(2147483647);
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expect(JSON.parse("2147483648")).toEqual(2147483648);
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expect(JSON.parse("2147483649")).toEqual(2147483649);
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expect(JSON.parse("2147483650")).toEqual(2147483650);
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expect(JSON.parse("9007199254740991")).toEqual(9007199254740991);
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expect(JSON.parse("9007199254740992")).toEqual(9007199254740992);
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expect(JSON.parse("9007199254740993")).toEqual(9007199254740993);
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expect(JSON.parse("9007199254740994")).toEqual(9007199254740994);
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expect(JSON.parse("9008199254740994")).toEqual(9008199254740994);
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expect(JSON.parse("18446744073709551615")).toEqual(18446744073709551615);
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expect(JSON.parse("18446744073709551616")).toEqual(18446744073709551616);
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expect(JSON.parse("18446744073709551617")).toEqual(18446744073709551617);
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});
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