686213c2b8
String objects are a bit special since the indexed properties are overridden by the contents of the underlying PrimitiveString. getOwnPropertyDescriptor() was not taking this into account, and would instead return undefined when asked about an indexed property in a String object.
97 lines
3 KiB
JavaScript
97 lines
3 KiB
JavaScript
test("plain property", () => {
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let o = { foo: "bar" };
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expect(o).toHaveConfigurableProperty("foo");
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expect(o).toHaveEnumerableProperty("foo");
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expect(o).toHaveWritableProperty("foo");
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expect(o).toHaveValueProperty("foo", "bar");
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expect(o).not.toHaveGetterProperty("foo");
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expect(o).not.toHaveSetterProperty("foo");
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});
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test("symbol property", () => {
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let s = Symbol("foo");
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let o = { [s]: "bar" };
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expect(o).toHaveConfigurableProperty(s);
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expect(o).toHaveEnumerableProperty(s);
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expect(o).toHaveWritableProperty(s);
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expect(o).toHaveValueProperty(s, "bar");
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expect(o).not.toHaveGetterProperty(s);
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expect(o).not.toHaveSetterProperty(s);
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});
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test("getter property", () => {
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let o = { get foo() {} };
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expect(o).toHaveConfigurableProperty("foo");
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expect(o).toHaveEnumerableProperty("foo");
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expect(o).not.toHaveWritableProperty("foo");
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expect(o).not.toHaveValueProperty("foo");
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expect(o).toHaveGetterProperty("foo");
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expect(o).not.toHaveSetterProperty("foo");
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});
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test("setter property", () => {
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let o = { set foo(_) {} };
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expect(o).toHaveConfigurableProperty("foo");
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expect(o).toHaveEnumerableProperty("foo");
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expect(o).not.toHaveWritableProperty("foo");
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expect(o).not.toHaveValueProperty("foo");
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expect(o).not.toHaveGetterProperty("foo");
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expect(o).toHaveSetterProperty("foo");
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});
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test("indexed property", () => {
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let o = { 0: "foo" };
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expect(o).toHaveConfigurableProperty(0);
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expect(o).toHaveEnumerableProperty(0);
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expect(o).toHaveWritableProperty(0);
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expect(o).toHaveValueProperty(0, "foo");
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expect(o).not.toHaveGetterProperty(0);
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expect(o).not.toHaveSetterProperty(0);
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expect(o).toHaveConfigurableProperty("0");
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expect(o).toHaveEnumerableProperty("0");
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expect(o).toHaveWritableProperty("0");
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expect(o).toHaveValueProperty("0", "foo");
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expect(o).not.toHaveGetterProperty("0");
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expect(o).not.toHaveSetterProperty("0");
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});
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test("defined property", () => {
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let o = {};
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const attributes = {
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enumerable: false,
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writable: true,
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value: 10,
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};
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Object.defineProperty(o, "foo", attributes);
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Object.defineProperty(o, 1, attributes);
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expect(o).not.toHaveConfigurableProperty("foo");
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expect(o).not.toHaveEnumerableProperty("foo");
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expect(o).toHaveWritableProperty("foo");
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expect(o).toHaveValueProperty("foo", 10);
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expect(o).not.toHaveGetterProperty("foo");
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expect(o).not.toHaveSetterProperty("foo");
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expect(o).not.toHaveConfigurableProperty(1);
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expect(o).not.toHaveEnumerableProperty(1);
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expect(o).toHaveWritableProperty(1);
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expect(o).toHaveValueProperty(1, 10);
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expect(o).not.toHaveGetterProperty(1);
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expect(o).not.toHaveSetterProperty(1);
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});
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test("String object indexed properties", () => {
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expect("foo").toHaveValueProperty(0, "f");
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expect("foo").toHaveEnumerableProperty(0);
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expect("foo").not.toHaveConfigurableProperty(0);
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expect("foo").not.toHaveWritableProperty(0);
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expect("foo").toHaveValueProperty(1, "o");
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});
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