Created SluggerFilterTest

module/Common/test/Validation/SluggerFilterTest.php

@@ -0,0 +1,44 @@
+<?php
+declare(strict_types=1);
+
+namespace ShlinkioTest\Shlink\Common\Validation;
+
+use Cocur\Slugify\SlugifyInterface;
+use PHPUnit\Framework\TestCase;
+use Prophecy\Prophecy\ObjectProphecy;
+use Shlinkio\Shlink\Common\Validation\SluggerFilter;
+
+class SluggerFilterTest extends TestCase
+{
+    /** @var SluggerFilter */
+    private $filter;
+    /** @var ObjectProphecy */
+    private $slugger;
+
+    public function setUp(): void
+    {
+        $this->slugger = $this->prophesize(SlugifyInterface::class);
+        $this->filter = new SluggerFilter($this->slugger->reveal());
+    }
+
+    /**
+     * @test
+     * @dataProvider provideValuesToFilter
+     */
+    public function providedValueIsFilteredAsExpected($providedValue, $expectedValue): void
+    {
+        $slugify = $this->slugger->slugify($providedValue)->willReturn('slug');
+
+        $result = $this->filter->filter($providedValue);
+
+        $this->assertEquals($expectedValue, $result);
+        $slugify->shouldHaveBeenCalledTimes($expectedValue !== null ? 1 : 0);
+    }
+
+    public function provideValuesToFilter(): iterable
+    {
+        yield 'null' => [null, null];
+        yield 'empty string' => ['', null];
+        yield 'not empty string' => ['foo', 'slug'];
+    }
+}