RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-10 09:47:35 +00:00
Code Issues Activity Actions

LibJS: Convert Proxy tests

Browse source
This commit is contained in:
Matthew Olsson 2020-07-03 22:43:08 -07:00 • committed by Andreas Kling
parent b86faeaeef
commit 449a1cf3a2
14 changed files with 820 additions and 815 deletions
Download patch file Download diff file Expand all files Collapse all files

71
Libraries/LibJS/Tests/builtins/Proxy/Proxy.handler-isExtensible.js
View file

@ -1,49 +1,36 @@
load("test-common.js");
try {
assert(Object.isExtensible(new Proxy({}, { isExtensible: null })) === true);
assert(Object.isExtensible(new Proxy({}, { isExtensible: undefined })) === true);
assert(Object.isExtensible(new Proxy({}, {})) === true);
let o = {};
let p = new Proxy(o, {
isExtensible(target) {
assert(target === o);
return true;
}
describe("[[IsExtensible]] trap normal behavior", () => {
test("forwarding when not defined in handler", () => {
expect(Object.isExtensible(new Proxy({}, { isExtensible: null }))).toBe(true);
expect(Object.isExtensible(new Proxy({}, { isExtensible: undefined }))).toBe(true);
expect(Object.isExtensible(new Proxy({}, {}))).toBe(true);
});
Object.isExtensible(p);
test("correct arguments supplied to trap", () => {
let o = {};
let p = new Proxy(o, {
isExtensible(target) {
expect(target).toBe(o);
return true;
}
});
// Invariants
o = {};
p = new Proxy(o, {
isExtensible(proxyTarget) {
assert(proxyTarget === o);
return true;
},
expect(Object.isExtensible(p)).toBe(true);
});
});
assert(Object.isExtensible(p) === true);
Object.preventExtensions(o);
describe("[[Call]] invariants", () => {
test("return value must match the target's extensibility", () => {
let o = {};
Object.preventExtensions(o);
assertThrowsError(() => {
Object.isExtensible(p);
}, {
error: TypeError,
message: "Proxy handler's isExtensible trap violates invariant: return value must match the target's extensibility",
let p = new Proxy(o, {
isExtensible() {
return true;
},
});
expect(() => {
Object.isExtensible(p);
}).toThrowWithMessage(TypeError, "Proxy handler's isExtensible trap violates invariant: return value must match the target's extensibility");
});
p = new Proxy(o, {
isExtensible(proxyTarget) {
assert(proxyTarget === o);
return false;
},
});
assert(Object.isExtensible(p) === false);
console.log("PASS");
} catch (e) {
console.log("FAIL: " + e);
}
});