blob: 632895df20fcb232a691b021845b3344641d3be9 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
|
"use strict";
test("basic functionality", () => {
[true, false, "foo", 123].forEach(primitive => {
expect(() => {
primitive.foo = "bar";
}).toThrowWithMessage(TypeError, `Cannot set property 'foo' of ${primitive}`);
expect(() => {
primitive[Symbol.hasInstance] = 123;
}).toThrowWithMessage(
TypeError,
`Cannot set property 'Symbol(Symbol.hasInstance)' of ${primitive}`
);
});
[null, undefined].forEach(primitive => {
expect(() => {
primitive.foo = "bar";
}).toThrowWithMessage(TypeError, `${primitive} cannot be converted to an object`);
expect(() => {
primitive[Symbol.hasInstance] = 123;
}).toThrowWithMessage(TypeError, `${primitive} cannot be converted to an object`);
});
});
|