wip: migrate to bun

test/dropWhile.spec.ts

@@ -0,0 +1,67 @@
+import assert from 'node:assert';
+import lodashStable from 'lodash';
+import { slice, LARGE_ARRAY_SIZE } from './utils';
+import dropWhile from '../src/dropWhile';
+
+describe('dropWhile', () => {
+    const array = [1, 2, 3, 4];
+
+    const objects = [
+        { a: 2, b: 2 },
+        { a: 1, b: 1 },
+        { a: 0, b: 0 },
+    ];
+
+    it('should drop elements while `predicate` returns truthy', () => {
+        const actual = dropWhile(array, (n) => n < 3);
+
+        assert.deepStrictEqual(actual, [3, 4]);
+    });
+
+    it('should provide correct `predicate` arguments', () => {
+        let args;
+
+        dropWhile(array, function () {
+            args = slice.call(arguments);
+        });
+
+        assert.deepStrictEqual(args, [1, 0, array]);
+    });
+
+    it('should work with `_.matches` shorthands', () => {
+        assert.deepStrictEqual(dropWhile(objects, { b: 2 }), objects.slice(1));
+    });
+
+    it('should work with `_.matchesProperty` shorthands', () => {
+        assert.deepStrictEqual(dropWhile(objects, ['b', 2]), objects.slice(1));
+    });
+
+    it('should work with `_.property` shorthands', () => {
+        assert.deepStrictEqual(dropWhile(objects, 'b'), objects.slice(2));
+    });
+
+    it('should work in a lazy sequence', () => {
+        const array = lodashStable.range(1, LARGE_ARRAY_SIZE + 3),
+            predicate = function (n) {
+                return n < 3;
+            },
+            expected = dropWhile(array, predicate),
+            wrapped = _(array).dropWhile(predicate);
+
+        assert.deepEqual(wrapped.value(), expected);
+        assert.deepEqual(wrapped.reverse().value(), expected.slice().reverse());
+        assert.strictEqual(wrapped.last(), _.last(expected));
+    });
+
+    it('should work in a lazy sequence with `drop`', () => {
+        const array = lodashStable.range(1, LARGE_ARRAY_SIZE + 3);
+
+        const actual = _(array)
+            .dropWhile((n) => n == 1)
+            .drop()
+            .dropWhile((n) => n == 3)
+            .value();
+
+        assert.deepEqual(actual, array.slice(3));
+    });
+});