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https://github.com/RGBCube/serenity
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83be39c91a
This was missing from Value::is_array(), which is equivalent to the spec's IsArray() abstract operation - it treats a Proxy value with an Array target object as being an Array. It can throw, so needs both the global object and an exception check now.
34 lines
1.3 KiB
JavaScript
34 lines
1.3 KiB
JavaScript
test("length is 1", () => {
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expect(Array.isArray).toHaveLength(1);
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});
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test("arguments that evaluate to false", () => {
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expect(Array.isArray()).toBeFalse();
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expect(Array.isArray("1")).toBeFalse();
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expect(Array.isArray("foo")).toBeFalse();
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expect(Array.isArray(1)).toBeFalse();
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expect(Array.isArray(1, 2, 3)).toBeFalse();
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expect(Array.isArray(undefined)).toBeFalse();
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expect(Array.isArray(null)).toBeFalse();
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expect(Array.isArray(Infinity)).toBeFalse();
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expect(Array.isArray({})).toBeFalse();
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});
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test("arguments that evaluate to true", () => {
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expect(Array.isArray([])).toBeTrue();
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expect(Array.isArray([1])).toBeTrue();
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expect(Array.isArray([1, 2, 3])).toBeTrue();
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expect(Array.isArray(new Array())).toBeTrue();
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expect(Array.isArray(new Array(10))).toBeTrue();
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expect(Array.isArray(new Array("a", "b", "c"))).toBeTrue();
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expect(Array.isArray(Array.prototype)).toBeTrue();
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expect(Array.isArray(new Proxy([], {}))).toBeTrue();
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});
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test("Revoked Proxy as argument throws", () => {
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const revocable = Proxy.revocable([], {});
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revocable.revoke();
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expect(() => {
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Array.isArray(revocable.proxy);
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}).toThrowWithMessage(TypeError, "An operation was performed on a revoked Proxy object");
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});
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