mirror of
https://github.com/LadybirdBrowser/ladybird.git
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51 lines
1.4 KiB
JavaScript
51 lines
1.4 KiB
JavaScript
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test("booleans", () => {
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expect(true ?? true).toBeTrue();
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expect(false ?? false).toBeFalse();
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expect(true ?? false).toBeTrue();
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expect(false ?? true).toBeFalse();
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});
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test("strings", () => {
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expect("" ?? "").toBe("");
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expect("" ?? false).toBe("");
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expect("" ?? true).toBe("");
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expect(false ?? "").toBeFalse();
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expect(true ?? "").toBeTrue();
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expect("foo" ?? "bar").toBe("foo");
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expect("foo" ?? false).toBe("foo");
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expect("foo" ?? true).toBe("foo");
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expect(false ?? "bar").toBeFalse();
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expect(true ?? "bar").toBeTrue();
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});
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test("numbers", () => {
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expect(false ?? 1 === 2).toBeFalse();
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expect(true ?? 1 === 2).toBeTrue();
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expect(0 ?? false).toBe(0);
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expect(0 ?? true).toBe(0);
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expect(42 ?? false).toBe(42);
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expect(42 ?? true).toBe(42);
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expect(false ?? 0).toBeFalse();
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expect(true ?? 0).toBeTrue();
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expect(false ?? 42).toBeFalse();
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expect(true ?? 42).toBeTrue();
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});
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test("objects", () => {
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expect([] ?? false).toHaveLength(0);
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expect([] ?? true).toHaveLength(0);
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expect(false ?? []).toBeFalse();
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expect(true ?? []).toBeTrue();
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});
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test("null & undefined", () => {
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expect(null ?? false).toBeFalse();
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expect(null ?? true).toBeTrue();
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expect(false ?? null).toBeFalse();
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expect(true ?? null).toBeTrue();
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expect(undefined ?? false).toBeFalse();
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expect(undefined ?? true).toBeTrue();
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expect(false ?? undefined).toBeFalse();
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expect(true ?? undefined).toBeTrue();
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});
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