mirror of
https://github.com/LadybirdBrowser/ladybird
synced 2026-05-11 17:37:33 +02:00
50 lines
1.4 KiB
JavaScript
50 lines
1.4 KiB
JavaScript
test("constructor properties", () => {
|
|
expect(Boolean).toHaveLength(1);
|
|
expect(Boolean.name).toBe("Boolean");
|
|
});
|
|
|
|
test("typeof", () => {
|
|
expect(typeof new Boolean()).toBe("object");
|
|
expect(typeof Boolean()).toBe("boolean");
|
|
expect(typeof Boolean(true)).toBe("boolean");
|
|
});
|
|
|
|
test("basic functionality", () => {
|
|
var foo = new Boolean(true);
|
|
var bar = new Boolean(true);
|
|
|
|
expect(foo).not.toBe(bar);
|
|
expect(foo.valueOf()).toBe(bar.valueOf());
|
|
|
|
expect(Boolean()).toBeFalse();
|
|
expect(Boolean(false)).toBeFalse();
|
|
expect(Boolean(null)).toBeFalse();
|
|
expect(Boolean(undefined)).toBeFalse();
|
|
expect(Boolean(NaN)).toBeFalse();
|
|
expect(Boolean("")).toBeFalse();
|
|
expect(Boolean(0.0)).toBeFalse();
|
|
expect(Boolean(-0.0)).toBeFalse();
|
|
expect(Boolean(true)).toBeTrue();
|
|
expect(Boolean("0")).toBeTrue();
|
|
expect(Boolean({})).toBeTrue();
|
|
expect(Boolean([])).toBeTrue();
|
|
expect(Boolean(1)).toBeTrue();
|
|
});
|
|
|
|
test("double negate", () => {
|
|
expect(!true).toBeFalse();
|
|
expect(!!true).toBeTrue();
|
|
expect(!false).toBeTrue();
|
|
expect(!!false).toBeFalse();
|
|
expect(!!null).toBeFalse();
|
|
expect(!!undefined).toBeFalse();
|
|
expect(!!NaN).toBeFalse();
|
|
expect(!!"").toBeFalse();
|
|
expect(!!0.0).toBeFalse();
|
|
expect(!!-0.0).toBeFalse();
|
|
expect(!!"0").toBeTrue();
|
|
expect(!!{}).toBeTrue();
|
|
expect(!![]).toBeTrue();
|
|
expect(!!1).toBeTrue();
|
|
});
|