mirrors/ladybird
0
0
Fork 0
mirror of https://github.com/LadybirdBrowser/ladybird.git synced 2025-05-06 03:02:55 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 9

Libraries: Move to Userland/Libraries/

Browse source
This commit is contained in:
Andreas Kling 2021-01-12 12:17:30 +01:00
parent dc28c07fa5
commit 13d7c09125
Notes: sideshowbarker 2024-07-18 23:53:55 +09:00
1857 changed files with 266 additions and 274 deletions
Download patch file Download diff file Expand all files Collapse all files

72
Libraries/LibJS/Tests/builtins/Proxy/Proxy.handler-construct.js
View file

@ -1,72 +0,0 @@
describe("[[Construct]] trap normal behavior", () => {
test("forwarding when not defined in handler", () => {
let p = new Proxy(
function () {
this.x = 5;
},
{ construct: null }
);
expect(new p().x).toBe(5);
p = new Proxy(
function () {
this.x = 5;
},
{ construct: undefined }
);
expect(new p().x).toBe(5);
p = new Proxy(function () {
this.x = 5;
}, {});
expect(new p().x).toBe(5);
});
test("trapping 'new'", () => {
function f(value) {
this.x = value;
}
let p;
const handler = {
construct(target, arguments, newTarget) {
expect(target).toBe(f);
expect(newTarget).toBe(p);
if (arguments[1]) return Reflect.construct(target, [arguments[0] * 2], newTarget);
return Reflect.construct(target, arguments, newTarget);
},
};
p = new Proxy(f, handler);
expect(new p(15).x).toBe(15);
expect(new p(15, true).x).toBe(30);
});
test("trapping Reflect.construct", () => {
function f(value) {
this.x = value;
}
let p;
function theNewTarget() {}
const handler = {
construct(target, arguments, newTarget) {
expect(target).toBe(f);
expect(newTarget).toBe(theNewTarget);
if (arguments[1]) return Reflect.construct(target, [arguments[0] * 2], newTarget);
return Reflect.construct(target, arguments, newTarget);
},
};
p = new Proxy(f, handler);
Reflect.construct(p, [15], theNewTarget);
});
});
describe("[[Construct]] invariants", () => {
test("target must have a [[Construct]] slot", () => {
[{}, [], new Proxy({}, {})].forEach(item => {
expect(() => {
new new Proxy(item, {})();
}).toThrowWithMessage(TypeError, "[object ProxyObject] is not a constructor");
});
});
});