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LibJS: Add some tests for TypedArray.prototype.set

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mjz19910 2022-03-12 20:22:21 -07:00 committed by Linus Groh
parent 13c253d2ee
commit fd8a56cdde
Notes: sideshowbarker 2024-07-17 17:38:29 +09:00 
Author: https://github.com/mjz19910
Commit: https://github.com/SerenityOS/serenity/commit/fd8a56cdde
Pull-request: https://github.com/SerenityOS/serenity/pull/13019
Reviewed-by: https://github.com/Lubrsi ✅
1 changed files with 52 additions and 0 deletions
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52
Userland/Libraries/LibJS/Tests/builtins/TypedArray/TypedArray.prototype.set.js
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@ -47,4 +47,56 @@ describe("normal behavior", () => {
expect(secondTypedArray[1]).toBe(maxUnsignedInteger);
});
});
test("set works when source is TypedArray", () => {
function argumentTests({ array, maxUnsignedInteger }) {
const firstTypedArray = new array(1);
const secondTypedArray = new array([maxUnsignedInteger]);
firstTypedArray.set(secondTypedArray, 0);
expect(firstTypedArray[0]).toBe(maxUnsignedInteger);
}
TYPED_ARRAYS.forEach(T => argumentTests(T));
BIGINT_TYPED_ARRAYS.forEach(T => argumentTests(T));
});
test("set works when source is Array", () => {
function argumentTests({ array, maxUnsignedInteger }) {
const firstTypedArray = new array(1);
firstTypedArray.set([maxUnsignedInteger], 0);
expect(firstTypedArray[0]).toBe(maxUnsignedInteger);
}
TYPED_ARRAYS.forEach(T => argumentTests(T));
BIGINT_TYPED_ARRAYS.forEach(T => argumentTests(T));
});
});
test("length is 1", () => {
TYPED_ARRAYS.forEach(({ array: T }) => {
expect(T.prototype.set).toHaveLength(1);
});
BIGINT_TYPED_ARRAYS.forEach(({ array: T }) => {
expect(T.prototype.set).toHaveLength(1);
});
});
describe("errors", () => {
function argumentErrorTests(T) {
test(`requires at least one argument (${T.name})`, () => {
expect(() => {
new T().set();
}).toThrowWithMessage(TypeError, "ToObject on null or undefined");
});
test(`source array in bounds (${T.name})`, () => {
expect(() => {
new T().set([0]);
}).toThrowWithMessage(RangeError, "Overflow or out of bounds in target length");
});
}
TYPED_ARRAYS.forEach(({ array: T }) => argumentErrorTests(T));
BIGINT_TYPED_ARRAYS.forEach(({ array: T }) => argumentErrorTests(T));
});