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LibJS: Implement Temporal.PlainTime.prototype.round

This commit is contained in:
Luke Wilde 2021-11-02 20:34:26 +00:00 committed by Linus Groh
parent 853fab352d
commit b83e3fd01d
3 changed files with 178 additions and 0 deletions

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describe("correct behavior", () => {
test("length is 1", () => {
expect(Temporal.PlainTime.prototype.round).toHaveLength(1);
});
test("basic functionality", () => {
const plainTime = new Temporal.PlainTime(18, 15, 9, 100, 200, 300);
const firstRoundedPlainTime = plainTime.round({ smallestUnit: "minute" });
expect(firstRoundedPlainTime.hour).toBe(18);
expect(firstRoundedPlainTime.minute).toBe(15);
expect(firstRoundedPlainTime.second).toBe(0);
expect(firstRoundedPlainTime.millisecond).toBe(0);
expect(firstRoundedPlainTime.microsecond).toBe(0);
expect(firstRoundedPlainTime.nanosecond).toBe(0);
const secondRoundedPlainTime = plainTime.round({
smallestUnit: "minute",
roundingMode: "ceil",
});
expect(secondRoundedPlainTime.hour).toBe(18);
expect(secondRoundedPlainTime.minute).toBe(16);
expect(secondRoundedPlainTime.second).toBe(0);
expect(secondRoundedPlainTime.millisecond).toBe(0);
expect(secondRoundedPlainTime.microsecond).toBe(0);
expect(secondRoundedPlainTime.nanosecond).toBe(0);
const thirdRoundedPlainTime = plainTime.round({
smallestUnit: "minute",
roundingMode: "ceil",
roundingIncrement: 30,
});
expect(thirdRoundedPlainTime.hour).toBe(18);
expect(thirdRoundedPlainTime.minute).toBe(30);
expect(thirdRoundedPlainTime.second).toBe(0);
expect(thirdRoundedPlainTime.millisecond).toBe(0);
expect(thirdRoundedPlainTime.microsecond).toBe(0);
expect(thirdRoundedPlainTime.nanosecond).toBe(0);
const fourthRoundedPlainTime = plainTime.round({
smallestUnit: "minute",
roundingMode: "floor",
roundingIncrement: 30,
});
expect(fourthRoundedPlainTime.hour).toBe(18);
expect(fourthRoundedPlainTime.minute).toBe(0);
expect(fourthRoundedPlainTime.second).toBe(0);
expect(fourthRoundedPlainTime.millisecond).toBe(0);
expect(fourthRoundedPlainTime.microsecond).toBe(0);
expect(fourthRoundedPlainTime.nanosecond).toBe(0);
const fifthRoundedPlainTime = plainTime.round({
smallestUnit: "hour",
roundingMode: "halfExpand",
roundingIncrement: 4,
});
expect(fifthRoundedPlainTime.hour).toBe(20);
expect(fifthRoundedPlainTime.minute).toBe(0);
expect(fifthRoundedPlainTime.second).toBe(0);
expect(fifthRoundedPlainTime.millisecond).toBe(0);
expect(fifthRoundedPlainTime.microsecond).toBe(0);
expect(fifthRoundedPlainTime.nanosecond).toBe(0);
});
});
describe("errors", () => {
test("this value must be a Temporal.PlainTime object", () => {
expect(() => {
Temporal.PlainTime.prototype.round.call("foo", {});
}).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainTime");
});
test("missing options object", () => {
expect(() => {
const plainTime = new Temporal.PlainTime(18, 15, 9, 100, 200, 300);
plainTime.round();
}).toThrowWithMessage(TypeError, "Required options object is missing or undefined");
});
test("invalid rounding mode", () => {
expect(() => {
const plainTime = new Temporal.PlainTime(18, 15, 9, 100, 200, 300);
plainTime.round({ smallestUnit: "second", roundingMode: "serenityOS" });
}).toThrowWithMessage(
RangeError,
"serenityOS is not a valid value for option roundingMode"
);
});
test("invalid smallest unit", () => {
expect(() => {
const plainTime = new Temporal.PlainTime(18, 15, 9, 100, 200, 300);
plainTime.round({ smallestUnit: "serenityOS" });
}).toThrowWithMessage(
RangeError,
"serenityOS is not a valid value for option smallestUnit"
);
});
test("increment may not be NaN", () => {
expect(() => {
const plainTime = new Temporal.PlainTime(18, 15, 9, 100, 200, 300);
plainTime.round({ smallestUnit: "second", roundingIncrement: NaN });
}).toThrowWithMessage(RangeError, "NaN is not a valid value for option roundingIncrement");
});
test("increment may not be smaller than 1 or larger than maximum", () => {
const plainTime = new Temporal.PlainTime(18, 15, 9, 100, 200, 300);
expect(() => {
plainTime.round({ smallestUnit: "second", roundingIncrement: -1 });
}).toThrowWithMessage(RangeError, "-1 is not a valid value for option roundingIncrement");
expect(() => {
plainTime.round({ smallestUnit: "second", roundingIncrement: 0 });
}).toThrowWithMessage(RangeError, "0 is not a valid value for option roundingIncrement");
expect(() => {
plainTime.round({ smallestUnit: "second", roundingIncrement: Infinity });
}).toThrowWithMessage(RangeError, "inf is not a valid value for option roundingIncrement");
});
});