wip: migrate to bun

test/takeRight.spec.ts

@@ -0,0 +1,71 @@
+import assert from 'node:assert';
+import lodashStable from 'lodash';
+import { falsey, LARGE_ARRAY_SIZE, isEven } from './utils';
+import takeRight from '../src/takeRight';
+
+describe('takeRight', () => {
+    const array = [1, 2, 3];
+
+    it('should take the last two elements', () => {
+        assert.deepStrictEqual(takeRight(array, 2), [2, 3]);
+    });
+
+    it('should treat falsey `n` values, except `undefined`, as `0`', () => {
+        const expected = lodashStable.map(falsey, (value) => (value === undefined ? [3] : []));
+
+        const actual = lodashStable.map(falsey, (n) => takeRight(array, n));
+
+        assert.deepStrictEqual(actual, expected);
+    });
+
+    it('should return an empty array when `n` < `1`', () => {
+        lodashStable.each([0, -1, -Infinity], (n) => {
+            assert.deepStrictEqual(takeRight(array, n), []);
+        });
+    });
+
+    it('should return all elements when `n` >= `length`', () => {
+        lodashStable.each([3, 4, 2 ** 32, Infinity], (n) => {
+            assert.deepStrictEqual(takeRight(array, n), array);
+        });
+    });
+
+    it('should work as an iteratee for methods like `_.map`', () => {
+        const array = [
+                [1, 2, 3],
+                [4, 5, 6],
+                [7, 8, 9],
+            ],
+            actual = lodashStable.map(array, takeRight);
+
+        assert.deepStrictEqual(actual, [[3], [6], [9]]);
+    });
+
+    it('should work in a lazy sequence', () => {
+        var array = lodashStable.range(LARGE_ARRAY_SIZE),
+            predicate = function (value) {
+                values.push(value);
+                return isEven(value);
+            },
+            values = [],
+            actual = _(array).takeRight(2).takeRight().value();
+
+        assert.deepEqual(actual, takeRight(takeRight(array)));
+
+        actual = _(array).filter(predicate).takeRight(2).takeRight().value();
+        assert.deepEqual(values, array);
+        assert.deepEqual(actual, takeRight(takeRight(_.filter(array, predicate), 2)));
+
+        actual = _(array).takeRight(6).take(4).takeRight(2).take().value();
+        assert.deepEqual(actual, _.take(takeRight(_.take(takeRight(array, 6), 4), 2)));
+
+        values = [];
+
+        actual = _(array).filter(predicate).takeRight(6).take(4).takeRight(2).take().value();
+        assert.deepEqual(values, array);
+        assert.deepEqual(
+            actual,
+            _.take(takeRight(_.take(takeRight(_.filter(array, predicate), 6), 4), 2)),
+        );
+    });
+});