44 lines
1.4 KiB
JavaScript
44 lines
1.4 KiB
JavaScript
describe("correct behavior", () => {
|
|
test("lengths", () => {
|
|
expect(Object.values).toHaveLength(1);
|
|
expect(Object.values(true)).toHaveLength(0);
|
|
expect(Object.values(45)).toHaveLength(0);
|
|
expect(Object.values(-998)).toHaveLength(0);
|
|
expect(Object.values("abcd")).toHaveLength(4);
|
|
expect(Object.values([1, 2, 3])).toHaveLength(3);
|
|
expect(Object.values({ a: 1, b: 2, c: 3 })).toHaveLength(3);
|
|
});
|
|
|
|
test("object argument", () => {
|
|
let values = Object.values({ foo: 1, bar: 2, baz: 3 });
|
|
expect(values).toEqual([1, 2, 3]);
|
|
});
|
|
|
|
test("array argument", () => {
|
|
let values = Object.values(["a", "b", "c"]);
|
|
expect(values).toEqual(["a", "b", "c"]);
|
|
});
|
|
|
|
test("ignores non-enumerable properties", () => {
|
|
let obj = { foo: 1 };
|
|
Object.defineProperty(obj, 'getFoo', {
|
|
value: function() { return this.foo; },
|
|
});
|
|
let values = Object.values(obj);
|
|
expect(values).toEqual([1]);
|
|
});
|
|
});
|
|
|
|
describe("errors", () => {
|
|
test("null argument", () => {
|
|
expect(() => {
|
|
Object.values(null);
|
|
}).toThrowWithMessage(TypeError, "ToObject on null or undefined");
|
|
});
|
|
|
|
test("undefined argument", () => {
|
|
expect(() => {
|
|
Object.values(undefined);
|
|
}).toThrowWithMessage(TypeError, "ToObject on null or undefined");
|
|
});
|
|
});
|