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LibJS: Implement Temporal.PlainDateTime.prototype.since()

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Linus Groh 2021-11-21 16:11:56 +00:00
parent 803eddbb62
commit 0619c34703
3 changed files with 158 additions and 0 deletions
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99
Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.since.js Normal file
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describe("correct behavior", () => {
test("length is 1", () => {
expect(Temporal.PlainDateTime.prototype.since).toHaveLength(1);
});
test("basic functionality", () => {
const values = [
[[0, 1, 1, 0, 0, 0, 0, 0, 0], [0, 1, 1, 0, 0, 0, 0, 0, 0], "PT0S"],
[[2, 3, 4, 5, 6, 7, 8, 9, 10], [1, 2, 3, 4, 5, 6, 7, 8, 9], "P394DT1H1M1.001001001S"],
[[1, 2, 3, 4, 5, 6, 7, 8, 9], [0, 1, 1, 0, 0, 0, 0, 0, 0], "P399DT4H5M6.007008009S"],
[[0, 1, 1, 0, 0, 0, 0, 0, 0], [1, 2, 3, 4, 5, 6, 7, 8, 9], "-P399DT4H5M6.007008009S"],
[
[0, 12, 31, 23, 59, 59, 999, 999, 999],
[0, 1, 1, 0, 0, 0, 0, 0, 0],
"P365DT23H59M59.999999999S",
],
[
[0, 1, 1, 0, 0, 0, 0, 0, 0],
[0, 12, 31, 23, 59, 59, 999, 999, 999],
"-P365DT23H59M59.999999999S",
],
];
for (const [args, argsOther, expected] of values) {
const plainDateTime = new Temporal.PlainDateTime(...args);
const other = new Temporal.PlainDateTime(...argsOther);
expect(plainDateTime.since(other).toString()).toBe(expected);
}
});
test("smallestUnit option", () => {
const plainDateTime = new Temporal.PlainDateTime(1, 2, 3, 4, 5, 6, 7, 8, 9);
const other = new Temporal.PlainDateTime(0, 1, 1, 0, 0, 0, 0, 0, 0);
const values = [
["year", "P1Y"],
["month", "P13M"],
["week", "P57W"],
["day", "P399D"],
["hour", "P399DT4H"],
["minute", "P399DT4H5M"],
["second", "P399DT4H5M6S"],
["millisecond", "P399DT4H5M6.007S"],
["microsecond", "P399DT4H5M6.007008S"],
["nanosecond", "P399DT4H5M6.007008009S"],
];
for (const [smallestUnit, expected] of values) {
expect(plainDateTime.since(other, { smallestUnit }).toString()).toBe(expected);
}
});
test("largestUnit option", () => {
const plainDateTime = new Temporal.PlainDateTime(1, 2, 3, 4, 5, 6, 7, 8, 9);
const other = new Temporal.PlainDateTime(0, 1, 1, 0, 0, 0, 0, 0, 0);
const values = [
["year", "P1Y1M2DT4H5M6.007008009S"],
["month", "P13M2DT4H5M6.007008009S"],
["week", "P57WT4H5M6.007008009S"],
["day", "P399DT4H5M6.007008009S"],
["hour", "PT9580H5M6.007008009S"],
["minute", "PT574805M6.007008009S"],
["second", "PT34488306.007008009S"],
["millisecond", "PT34488306.007008009S"],
["microsecond", "PT34488306.007008009S"],
["nanosecond", "PT34488306.007008008S"],
];
for (const [largestUnit, expected] of values) {
expect(plainDateTime.since(other, { largestUnit }).toString()).toBe(expected);
}
});
});
describe("errors", () => {
test("this value must be a Temporal.PlainDateTime object", () => {
expect(() => {
Temporal.PlainDateTime.prototype.since.call("foo", {});
}).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainDateTime");
});
test("cannot compare dates from different calendars", () => {
const calendarOne = {
toString() {
return "calendarOne";
},
};
const calendarTwo = {
toString() {
return "calendarTwo";
},
};
const args = [1970, 1, 1, 0, 0, 0, 0, 0, 0];
const plainDateTimeOne = new Temporal.PlainDateTime(...args, calendarOne);
const plainDateTimeTwo = new Temporal.PlainDateTime(...args, calendarTwo);
expect(() => {
plainDateTimeOne.since(plainDateTimeTwo);
}).toThrowWithMessage(RangeError, "Cannot compare dates from two different calendars");
});
});