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test: complete collection coverage (#10380)

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This commit is contained in:
Almeida
2024-07-06 21:32:01 +01:00
committed by Vlad Frangu
parent 9779baea84
commit c1b5242d2f
1 changed files with 14 additions and 0 deletions
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14
packages/collection/__tests__/collection.test.ts
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@@ -138,6 +138,12 @@ describe('each() tests', () => {
expectInvalidFunctionError(() => coll.each(123), 123);
});
test('binds the thisArg', () => {
coll.each(function each() {
expect(this).toBeNull();
}, null);
});
test('iterate over each item', () => {
const coll = createTestCollection();
const a: [string, number][] = [];
@@ -964,6 +970,10 @@ describe('findLast() tests', () => {
expect(coll.findLast((value) => value % 2 === 1)).toStrictEqual(3);
});
test('returns undefined if no item matches', () => {
expect(coll.findLast((value) => value === 10)).toBeUndefined();
});
test('throws if fn is not a function', () => {
// @ts-expect-error: Invalid function
expectInvalidFunctionError(() => createCollection().findLast());
@@ -985,6 +995,10 @@ describe('findLastKey() tests', () => {
expect(coll.findLastKey((value) => value % 2 === 1)).toStrictEqual('c');
});
test('returns undefined if no item matches', () => {
expect(coll.findLastKey((value) => value === 10)).toBeUndefined();
});
test('throws if fn is not a function', () => {
// @ts-expect-error: Invalid function
expectInvalidFunctionError(() => createCollection().findLastKey());