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LibJS: Add Temporal.Instant.prototype.round()

As well as the required Abstract Operations.
This commit is contained in:
Idan Horowitz 2021-07-11 23:49:05 +03:00 committed by Linus Groh
parent 75d1ffea00
commit 84b028bd71
7 changed files with 361 additions and 1 deletions

View file

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describe("correct behavior", () => {
test("basic functionality", () => {
const instant = new Temporal.Instant(1111111111111n);
expect(instant.round({ smallestUnit: "second" }).epochNanoseconds).toBe(1111000000000n);
expect(
instant.round({ smallestUnit: "second", roundingMode: "ceil" }).epochNanoseconds
).toBe(1112000000000n);
expect(
instant.round({ smallestUnit: "minute", roundingIncrement: 30, roundingMode: "floor" })
.epochNanoseconds
).toBe(0n);
expect(
instant.round({
smallestUnit: "minute",
roundingIncrement: 30,
roundingMode: "halfExpand",
}).epochNanoseconds
).toBe(1800000000000n);
});
});
test("errors", () => {
test("this value must be a Temporal.Instant object", () => {
expect(() => {
Temporal.Instant.prototype.round.call("foo", {});
}).toThrowWithMessage(TypeError, "Not a Temporal.Instant");
});
test("invalid rounding mode", () => {
expect(() => {
const instant = new Temporal.Instant(1n);
instant.round({ smallestUnit: "second", roundingMode: "serenityOS" });
}).toThrowWithMessage(RangeError, "is not a valid value for option roundingMode");
});
test("invalid smallest unit", () => {
expect(() => {
const instant = new Temporal.Instant(1n);
instant.round({ smallestUnit: "serenityOS" });
}).toThrowWithMessage(RangeError, "is not a valid value for option smallestUnit");
});
test("increment may not be NaN", () => {
expect(() => {
const instant = new Temporal.Instant(1n);
instant.round({ smallestUnit: "second", roundingIncrement: NaN });
}).toThrowWithMessage(RangeError, "is not a valid value for option roundingIncrement");
});
test("increment may smaller than 1 or larger than maximum", () => {
const instant = new Temporal.Instant(1n);
expect(() => {
instant.round({ smallestUnit: "second", roundingIncrement: -1 });
}).toThrowWithMessage(RangeError, "is not a valid value for option roundingIncrement");
expect(() => {
instant.round({ smallestUnit: "second", roundingIncrement: 0 });
}).toThrowWithMessage(RangeError, "is not a valid value for option roundingIncrement");
expect(() => {
instant.round({ smallestUnit: "second", roundingIncrement: Infinity });
}).toThrowWithMessage(RangeError, "is not a valid value for option roundingIncrement");
});
});