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LibJS: Implement Temporal.Instant.prototype.epochSeconds
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4 changed files with 73 additions and 0 deletions
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describe("correct behavior", () => {
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test("basic functionality", () => {
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expect(new Temporal.Instant(0n).epochSeconds).toBe(0);
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expect(new Temporal.Instant(1n).epochSeconds).toBe(0);
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expect(new Temporal.Instant(999_999_999n).epochSeconds).toBe(0);
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expect(new Temporal.Instant(1_000_000_000n).epochSeconds).toBe(1);
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expect(new Temporal.Instant(1_500_000_000n).epochSeconds).toBe(1);
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expect(new Temporal.Instant(1_999_999_999n).epochSeconds).toBe(1);
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expect(new Temporal.Instant(2_000_000_000n).epochSeconds).toBe(2);
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expect(new Temporal.Instant(8_640_000_000_000_000_000_000n).epochSeconds).toBe(
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8_640_000_000_000
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);
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expect(new Temporal.Instant(-0n).epochSeconds).toBe(0);
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expect(new Temporal.Instant(-1n).epochSeconds).toBe(0);
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expect(new Temporal.Instant(-999_999_999n).epochSeconds).toBe(0);
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expect(new Temporal.Instant(-1_000_000_000n).epochSeconds).toBe(-1);
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expect(new Temporal.Instant(-1_500_000_000n).epochSeconds).toBe(-1);
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expect(new Temporal.Instant(-1_999_999_999n).epochSeconds).toBe(-1);
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expect(new Temporal.Instant(-2_000_000_000n).epochSeconds).toBe(-2);
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expect(new Temporal.Instant(-8_640_000_000_000_000_000_000n).epochSeconds).toBe(
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-8_640_000_000_000
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);
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});
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});
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test("errors", () => {
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test("this value must be a Temporal.Instant object", () => {
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expect(() => {
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Reflect.get(Temporal.Instant.prototype, "epochSeconds", "foo");
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}).toThrowWithMessage(TypeError, "Not a Temporal.Instant");
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});
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});
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