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Libraries: Move to Userland/Libraries/

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This commit is contained in:
Andreas Kling 2021-01-12 12:17:30 +01:00
parent dc28c07fa5
commit 13d7c09125
1857 changed files with 266 additions and 274 deletions
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58
Libraries/LibJS/Tests/builtins/Proxy/Proxy.handler-deleteProperty.js
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@ -1,58 +0,0 @@
describe("[[Delete]] trap normal behavior", () => {
test("forwarding when not defined in handler", () => {
expect(delete new Proxy({}, { deleteProperty: undefined }).foo).toBeTrue();
expect(delete new Proxy({}, { deleteProperty: null }).foo).toBeTrue();
expect(delete new Proxy({}, {}).foo).toBeTrue();
});
test("correct arguments supplied to trap", () => {
let o = {};
let p = new Proxy(o, {
deleteProperty(target, property) {
expect(target).toBe(o);
expect(property).toBe("foo");
return true;
},
});
delete p.foo;
});
test("conditional deletion", () => {
o = { foo: 1, bar: 2 };
p = new Proxy(o, {
deleteProperty(target, property) {
if (property === "foo") {
delete target[property];
return true;
}
return false;
},
});
expect(delete p.foo).toBeTrue();
expect(delete p.bar).toBeFalse();
expect(o.foo).toBeUndefined();
expect(o.bar).toBe(2);
});
});
describe("[[Delete]] invariants", () => {
test("cannot report a non-configurable own property as deleted", () => {
let o = {};
Object.defineProperty(o, "foo", { configurable: false });
let p = new Proxy(o, {
deleteProperty() {
return true;
},
});
expect(() => {
delete p.foo;
}).toThrowWithMessage(
TypeError,
"Proxy handler's deleteProperty trap violates invariant: cannot report a non-configurable own property of the target as deleted"
);
});
});