diff --git a/tests/ArrayHelper/FindTest.php b/tests/ArrayHelper/FindTest.php
new file mode 100644
index 0000000..e443e49
--- /dev/null
+++ b/tests/ArrayHelper/FindTest.php
@@ -0,0 +1,115 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Yiisoft\Arrays\Tests\ArrayHelper;
+
+use Closure;
+use PHPUnit\Framework\TestCase;
+use Yiisoft\Arrays\ArrayHelper;
+
+final class FindTest extends TestCase
+{
+    private array $array = [
+        [
+            "a" => 1,
+            "b" => 2,
+            "c" => 3,
+            "d" => 4,
+            "e" => 5,
+        ],
+        [
+            1, 2, 3, 4, 5
+        ],
+    ];
+
+    public function dataProviderFindFromArray(): array
+    {
+        return [
+            [$this->array[0], fn ($value) => $value > 3, 4],
+            [$this->array[1], fn ($value) => $value > 3, 4],
+            [$this->array[1], fn ($value) => $value > 5, null],
+            [$this->array[0], fn ($value, $key) => $key === "c", 3],
+            [$this->array[0], fn () => false, null],
+            [[], fn () => true, null],
+        ];
+    }
+
+    /**
+     * @dataProvider dataProviderFindFromArray
+     *
+     * @param Closure $predicate
+     * @param $expected
+     */
+    public function testFind($array, $predicate, $expected): void
+    {
+        $this->assertEquals($expected, ArrayHelper::find($array, $predicate));
+    }
+
+    public function dataProviderFindKeyFromArray(): array
+    {
+        return [
+            [$this->array[0], fn ($value) => $value > 3, "d"],
+            [$this->array[1], fn ($value) => $value > 3, 3],
+            [$this->array[1], fn ($value) => $value > 5, null],
+            [$this->array[0], fn ($value, $key) => $key === "c", "c"],
+            [$this->array[0], fn () => false, null],
+            [[], fn () => true, null],
+        ];
+    }
+
+    /**
+     * @dataProvider dataProviderFindKeyFromArray
+     *
+     * @param Closure $predicate
+     * @param $expected
+     */
+    public function testFindKey($array, $predicate, $expected): void
+    {
+        $this->assertEquals($expected, ArrayHelper::findKey($array, $predicate));
+    }
+
+    public function dataProviderAnyFromArray(): array
+    {
+        return [
+            [$this->array[0], fn ($value) => $value > 3, true],
+            [$this->array[1], fn ($value) => $value > 3, true],
+            [$this->array[1], fn ($value) => $value > 5, false],
+            [$this->array[0], fn ($value, $key) => $key === "c", true],
+            [$this->array[0], fn () => false, false],
+            [[], fn () => true, false],
+        ];
+    }
+
+    /**
+     * @dataProvider dataProviderAnyFromArray
+     *
+     * @param Closure $predicate
+     * @param $expected
+     */
+    public function testAny($array, $predicate, $expected): void
+    {
+        $this->assertEquals($expected, ArrayHelper::any($array, $predicate));
+    }
+
+    public function dataProviderAllFromArray(): array
+    {
+        return [
+            [$this->array[0], fn ($value) => $value > 0, true],
+            [$this->array[1], fn ($value) => $value > 0, true],
+            [$this->array[1], fn ($value) => $value > 1, false],
+            [[], fn () => true, true],
+        ];
+    }
+
+    /**
+     * @dataProvider dataProviderAllFromArray
+     *
+     * @param Closure $predicate
+     * @param $expected
+     */
+    public function testAll($array, $predicate, $expected): void
+    {
+        $this->assertEquals($expected, ArrayHelper::all($array, $predicate));
+    }
+}