test remove

Author: brenoroosevelt

src/Remove.php

@@ -20,6 +20,7 @@ function remove(array &$set, ...$elements): int
     foreach ($elements as $element) {
         foreach (array_keys($set, $element, true) as $index) {
             unset($set[$index]);
+            $removed++;
         }
     }
 

tests/RemoveTest.php

@@ -0,0 +1,62 @@
+<?php
+declare(strict_types=1);
+
+namespace BrenoRoosevelt\Tests;
+
+use function BrenoRoosevelt\contains;
+use PHPUnit\Framework\TestCase;
+use function BrenoRoosevelt\remove;
+
+class RemoveTest extends TestCase
+{
+    public function removeProvider(): array
+    {
+        return [
+            'case_1' => [
+                [1, 2, 3],
+                [1],
+                1,
+                [1 => 2, 2 => 3]
+            ],
+            'case_2' => [
+                [1, 2, 3],
+                [1, 2, 2],
+                2,
+                [2 => 3]
+            ],
+            'case_3' => [
+                [1, 2, 3],
+                ['1'],
+                0,
+                [1, 2, 3]
+            ],
+            'case_4' => [
+                [null, false, 0],
+                [0],
+                1,
+                [null, false],
+            ],
+            'case_5' => [
+                [],
+                [0],
+                0,
+                [],
+            ]
+        ];
+    }
+
+    /**
+     * @param array $items
+     * @param array $elements
+     * @param int $count
+     * @param array $expected
+     * @return void
+     * @dataProvider removeProvider
+     */
+    public function testContainsAll(array $items, array $elements, int $count, array $expected): void
+    {
+        $removed = remove($items, ...$elements);
+        $this->assertEquals($count, $removed);
+        $this->assertEquals($expected, $items);
+    }
+}