test accept

Author: brenoroosevelt

composer.json

@@ -27,6 +27,7 @@
             "BrenoRoosevelt\\": "src/"
         },
         "files": [
+            "src/Accept.php",
             "src/Add.php",
             "src/All.php",
             "src/AtLeast.php",

src/Accept.php

@@ -0,0 +1,39 @@
+<?php
+declare(strict_types=1);
+
+namespace BrenoRoosevelt;
+
+/**
+ * Returns a subset of the collection with elements that match the specification.
+ * The keys are preserved
+ *
+ * @param iterable $items The collection
+ * @param callable $callback The specification is a callable that must return a boolean
+ * @param int $mode [optional] <p>
+ * Flag determining what arguments are sent to <i>callback</i>:
+ * </p><ul>
+ * <li>
+ * <b>CALLBACK_USE_VALUE</b> - <b>default</b> pass value as the only argument
+ * </li>
+ * <li>
+ * <b>CALLBACK_USE_KEY</b> - pass key as the only argument
+ * to <i>callback</i> instead of the value</span>
+ * </li>
+ * <li>
+ * <b>CALLBACK_USE_BOTH</b> - pass both value and key as
+ * arguments to <i>callback</i></span>
+ * </li>
+ * </ul>
+ * @return array
+ */
+function accept(iterable $items, callable $callback, int $mode = CALLBACK_USE_VALUE): array
+{
+    $result = [];
+    foreach ($items as $key => $value) {
+        if (true === call_user_func_array($callback, __args($mode, $key, $value))) {
+            $result[$key] = $value;
+        }
+    }
+
+    return $result;
+}

src/array_functions.php

@@ -3,18 +3,6 @@
 
 namespace BrenoRoosevelt;
 
-function accept(iterable $items, callable $callback, int $mode = CALLBACK_USE_VALUE): array
-{
-    $result = [];
-    foreach ($items as $key => $value) {
-        if (true === call_user_func_array($callback, __args($mode, $key, $value))) {
-            $result[$key] = $value;
-        }
-    }
-
-    return $result;
-}
-
 function reject(iterable $items, callable $callback, int $mode = CALLBACK_USE_VALUE): array
 {
     $result = [];

tests/AcceptTest.php

@@ -0,0 +1,30 @@
+<?php
+declare(strict_types=1);
+
+namespace BrenoRoosevelt\Tests;
+
+use PHPUnit\Framework\TestCase;
+use function BrenoRoosevelt\accept;
+use const BrenoRoosevelt\CALLBACK_USE_BOTH;
+use const BrenoRoosevelt\CALLBACK_USE_KEY;
+
+class AcceptTest extends TestCase
+{
+    public function testAccept()
+    {
+        $elements = [ 1, 'b', 'c', 'd'];
+        $this->assertEquals([ 1 => 'b', 2 => 'c', 3 => 'd'], accept($elements, 'is_string'));
+    }
+
+    public function testAcceptKey()
+    {
+        $elements = [1 => 1, 'b' => 2, 'c'];
+        $this->assertEquals(['b' => 2], accept($elements, 'is_string', CALLBACK_USE_KEY));
+    }
+
+    public function testAcceptBoth()
+    {
+        $elements = [1, 2, 3];
+        $this->assertEquals([1 => 2], accept($elements, fn($v, $k) => $v + $k === 3, CALLBACK_USE_BOTH));
+    }
+}