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LibJS: Add tests for all the unscopable Array prototype properties

When I was writing for tests for groupBy and groupByToMap, I noticed
there were no tests for these.
This commit is contained in:
Luke Wilde 2022-01-05 18:56:47 +00:00 committed by Linus Groh
parent 260d2099da
commit 3e0c19d6ea
13 changed files with 130 additions and 0 deletions

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@ -13,3 +13,13 @@ test("basic functionality", () => {
expect(array.at(-4)).toBeUndefined();
expect(array.at(-Infinity)).toBeUndefined();
});
test("is unscopable", () => {
expect(Array.prototype[Symbol.unscopables].at).toBeTrue();
const array = [];
with (array) {
expect(() => {
at;
}).toThrowWithMessage(ReferenceError, "'at' is not defined");
}
});

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@ -43,3 +43,13 @@ describe("normal behavior", () => {
expect(array).toEqual([1, 2, 1]);
});
});
test("is unscopable", () => {
expect(Array.prototype[Symbol.unscopables].copyWithin).toBeTrue();
const array = [];
with (array) {
expect(() => {
copyWithin;
}).toThrowWithMessage(ReferenceError, "'copyWithin' is not defined");
}
});

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@ -42,3 +42,13 @@ test("item added to array after exhaustion is inaccessible", () => {
a.push("c");
expect(it.next()).toEqual({ value: undefined, done: true });
});
test("is unscopable", () => {
expect(Array.prototype[Symbol.unscopables].entries).toBeTrue();
const array = [];
with (array) {
expect(() => {
entries;
}).toThrowWithMessage(ReferenceError, "'entries' is not defined");
}
});

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@ -18,3 +18,13 @@ test("basic functionality", () => {
expect([1, 2, 3].fill(4, 3, 5)).toEqual([1, 2, 3]);
expect(Array(3).fill(4)).toEqual([4, 4, 4]);
});
test("is unscopable", () => {
expect(Array.prototype[Symbol.unscopables].fill).toBeTrue();
const array = [];
with (array) {
expect(() => {
fill;
}).toThrowWithMessage(ReferenceError, "'fill' is not defined");
}
});

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@ -57,3 +57,13 @@ describe("normal behavior", () => {
expect(callbackCalled).toBe(2);
});
});
test("is unscopable", () => {
expect(Array.prototype[Symbol.unscopables].find).toBeTrue();
const array = [];
with (array) {
expect(() => {
find;
}).toThrowWithMessage(ReferenceError, "'find' is not defined");
}
});

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@ -57,3 +57,13 @@ describe("normal behavior", () => {
expect(callbackCalled).toBe(2);
});
});
test("is unscopable", () => {
expect(Array.prototype[Symbol.unscopables].findIndex).toBeTrue();
const array = [];
with (array) {
expect(() => {
findIndex;
}).toThrowWithMessage(ReferenceError, "'findIndex' is not defined");
}
});

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@ -59,3 +59,13 @@ describe("normal behavior", () => {
expect(callbackCalled).toBe(2);
});
});
test("is unscopable", () => {
expect(Array.prototype[Symbol.unscopables].findLast).toBeTrue();
const array = [];
with (array) {
expect(() => {
findLast;
}).toThrowWithMessage(ReferenceError, "'findLast' is not defined");
}
});

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@ -59,3 +59,13 @@ describe("normal behavior", () => {
expect(callbackCalled).toBe(2);
});
});
test("is unscopable", () => {
expect(Array.prototype[Symbol.unscopables].findLastIndex).toBeTrue();
const array = [];
with (array) {
expect(() => {
findLastIndex;
}).toThrowWithMessage(ReferenceError, "'findLastIndex' is not defined");
}
});

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@ -51,3 +51,13 @@ describe("normal behavior", () => {
expect(array1.flat({ depth: 2 })).toEqual([1, 2, [3, 4, [5, 6, [7, 8]]]]);
});
});
test("is unscopable", () => {
expect(Array.prototype[Symbol.unscopables].flat).toBeTrue();
const array = [];
with (array) {
expect(() => {
flat;
}).toThrowWithMessage(ReferenceError, "'flat' is not defined");
}
});

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@ -69,3 +69,13 @@ describe("normal behavior", () => {
expect(called).toBeFalse();
});
});
test("is unscopable", () => {
expect(Array.prototype[Symbol.unscopables].flatMap).toBeTrue();
const array = [];
with (array) {
expect(() => {
flatMap;
}).toThrowWithMessage(ReferenceError, "'flatMap' is not defined");
}
});

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@ -16,3 +16,13 @@ test("basic functionality", () => {
expect(array.includes(2, -100)).toBeTrue();
expect(array.includes("friends", 100)).toBeFalse();
});
test("is unscopable", () => {
expect(Array.prototype[Symbol.unscopables].includes).toBeTrue();
const array = [];
with (array) {
expect(() => {
includes;
}).toThrowWithMessage(ReferenceError, "'includes' is not defined");
}
});

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@ -42,3 +42,13 @@ test("item added to array after exhaustion is inaccessible", () => {
a.push("c");
expect(it.next()).toEqual({ value: undefined, done: true });
});
test("is unscopable", () => {
expect(Array.prototype[Symbol.unscopables].keys).toBeTrue();
const array = [];
with (array) {
expect(() => {
keys;
}).toThrowWithMessage(ReferenceError, "'keys' is not defined");
}
});

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@ -42,3 +42,13 @@ test("item added to array after exhaustion is inaccessible", () => {
a.push(3);
expect(it.next()).toEqual({ value: undefined, done: true });
});
test("is unscopable", () => {
expect(Array.prototype[Symbol.unscopables].values).toBeTrue();
const array = [];
with (array) {
expect(() => {
values;
}).toThrowWithMessage(ReferenceError, "'values' is not defined");
}
});