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LibJS: Implement Temporal.PlainYearMonth.prototype.subtract()

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This commit is contained in:
Linus Groh 2021-11-27 17:03:19 +00:00
parent acbcd64cdc
commit 6f2e0b3355
3 changed files with 93 additions and 0 deletions
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19
Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainYearMonth/PlainYearMonth.prototype.subtract.js Normal file
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describe("correct behavior", () => {
test("length is 1", () => {
expect(Temporal.PlainYearMonth.prototype.subtract).toHaveLength(1);
});
test("basic functionality", () => {
const plainYearMonth = new Temporal.PlainYearMonth(2021, 7);
const result = plainYearMonth.subtract(new Temporal.Duration(51, 6));
expect(result.equals(new Temporal.PlainYearMonth(1970, 1))).toBeTrue();
});
});
describe("errors", () => {
test("this value must be a Temporal.PlainYearMonth object", () => {
expect(() => {
Temporal.PlainYearMonth.prototype.subtract.call("foo");
}).toThrowWithMessage(TypeError, "Not an object of type Temporal.PlainYearMonth");
});
});