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LibJS: Implement Temporal.TimeZone.prototype.getOffsetNanosecondsFor()

This commit is contained in:
Linus Groh 2021-07-25 20:19:37 +01:00
parent d428787e18
commit 96e63415b6
6 changed files with 61 additions and 0 deletions

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describe("correct behavior", () => {
test("length is 1", () => {
expect(Temporal.TimeZone.prototype.getOffsetNanosecondsFor).toHaveLength(1);
});
test("basic functionality", () => {
const timeZone = new Temporal.TimeZone("UTC");
const instant = new Temporal.Instant(0n);
expect(timeZone.getOffsetNanosecondsFor(instant)).toBe(0);
});
test("custom offset", () => {
const timeZone = new Temporal.TimeZone("+01:30");
const instant = new Temporal.Instant(0n);
expect(timeZone.getOffsetNanosecondsFor(instant)).toBe(5400000000000);
});
});
test("errors", () => {
test("this value must be a Temporal.TimeZone object", () => {
expect(() => {
Temporal.TimeZone.prototype.getOffsetNanosecondsFor.call("foo");
}).toThrowWithMessage(TypeError, "Not a Temporal.TimeZone");
});
});