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LibJS: Implement Temporal.Instant.prototype.toString()

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Linus Groh 2021-08-31 00:15:36 +01:00 • committed by Andreas Kling
parent 1c65ee6edf
commit 576be0f8e7
14 changed files with 396 additions and 6 deletions
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65
Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.toString.js Normal file
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describe("correct behavior", () => {
test("length is 0", () => {
expect(Temporal.Instant.prototype.toString).toHaveLength(0);
});
test("basic functionality", () => {
const instant = new Temporal.Instant(1625614921123456789n);
expect(instant.toString()).toBe("2021-07-06T23:42:01.123456789Z");
});
test("timeZone option", () => {
const instant = new Temporal.Instant(1625614921123456789n);
const options = { timeZone: new Temporal.TimeZone("+01:30") };
expect(instant.toString(options)).toBe("2021-07-07T01:12:01.123456789+01:30");
});
test("fractionalSecondDigits option", () => {
const instant = new Temporal.Instant(1625614921123456000n);
const values = [
["auto", "2021-07-06T23:42:01.123456Z"],
[0, "2021-07-06T23:42:01Z"],
[1, "2021-07-06T23:42:01.1Z"],
[2, "2021-07-06T23:42:01.12Z"],
[3, "2021-07-06T23:42:01.123Z"],
[4, "2021-07-06T23:42:01.1234Z"],
[5, "2021-07-06T23:42:01.12345Z"],
[6, "2021-07-06T23:42:01.123456Z"],
[7, "2021-07-06T23:42:01.1234560Z"],
[8, "2021-07-06T23:42:01.12345600Z"],
[9, "2021-07-06T23:42:01.123456000Z"],
];
for (const [fractionalSecondDigits, expected] of values) {
const options = { fractionalSecondDigits };
expect(instant.toString(options)).toBe(expected);
}
// Ignored when smallestUnit is given
expect(instant.toString({ smallestUnit: "minute", fractionalSecondDigits: 9 })).toBe(
"2021-07-06T23:42Z"
);
});
test("smallestUnit option", () => {
const instant = new Temporal.Instant(1625614921123456789n);
const values = [
["minute", "2021-07-06T23:42Z"],
["second", "2021-07-06T23:42:01Z"],
["millisecond", "2021-07-06T23:42:01.123Z"],
["microsecond", "2021-07-06T23:42:01.123456Z"],
["nanosecond", "2021-07-06T23:42:01.123456789Z"],
];
for (const [smallestUnit, expected] of values) {
const options = { smallestUnit };
expect(instant.toString(options)).toBe(expected);
}
});
});
describe("errors", () => {
test("this value must be a Temporal.Instant object", () => {
expect(() => {
Temporal.Instant.prototype.toString.call("foo");
}).toThrowWithMessage(TypeError, "Not a Temporal.Instant");
});
});