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LibJS/Tests: Add tests for Temporal.Instant() constructor

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This commit is contained in:
Linus Groh 2021-07-08 22:31:39 +01:00
parent 117323f2d9
commit 6531485251
1 changed files with 30 additions and 0 deletions
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30
Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.js Normal file
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describe("errors", () => {
test("called without new", () => {
expect(() => {
Temporal.Instant();
}).toThrowWithMessage(TypeError, "Temporal.Instant constructor must be called with 'new'");
});
test("argument must be coercible to bigint", () => {
expect(() => {
new Temporal.Instant(123);
}).toThrowWithMessage(TypeError, "Cannot convert number to BigInt");
expect(() => {
new Temporal.Instant("foo");
}).toThrowWithMessage(SyntaxError, "Invalid value for BigInt: foo");
});
});
describe("normal behavior", () => {
test("length is 1", () => {
expect(Temporal.Instant).toHaveLength(1);
});
test("basic functionality", () => {
const instant = new Temporal.Instant(123n);
expect(instant.epochNanoseconds).toBe(123n);
expect(typeof instant).toBe("object");
expect(instant).toBeInstanceOf(Temporal.Instant);
expect(Object.getPrototypeOf(instant)).toBe(Temporal.Instant.prototype);
});
});