GTA-463 permalink with fake feature

src/Permalink/Permalink.php

@@ -0,0 +1,39 @@
+<?php
+
+namespace VAF\WP\Framework\Permalink;
+
+class Permalink
+{
+
+    static ?PermalinkResolver $permalinkResolver = null;
+    private int $postId;
+
+    public static function fake(PermalinkResolver $permalinkResolver)
+    {
+        self::$permalinkResolver = $permalinkResolver;
+    }
+
+    public static function fromPostId(int $postId): self
+    {
+    	$permalink = new static();
+
+        $permalink->postId = $postId;
+
+    	return $permalink;
+    }
+
+    public function __toString(): string
+    {
+        return self::resolver()->permalinkForPostId($this->postId);
+    }
+
+    private static function resolver(): PermalinkResolver
+    {
+        if(self::$permalinkResolver === null) {
+            self::$permalinkResolver = new PermalinkResolver();
+        }
+
+        return self::$permalinkResolver;
+    }
+
+}

src/Permalink/PermalinkResolver.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace VAF\WP\Framework\Permalink;
+
+class PermalinkResolver
+{
+
+    public function permalinkForPostId(string $postId): string
+    {
+        return get_permalink($postId);
+    }
+
+}

tests/Unit/PermalinkTest.php

@@ -0,0 +1,39 @@
+<?php
+
+namespace VAF\WP\FrameworkTests\Unit;
+
+use VAF\WP\Framework\Permalink\Permalink;
+use VAF\WP\Framework\Permalink\PermalinkResolver;
+use VAF\WP\FrameworkTests\TestCase;
+
+class PermalinkTest extends TestCase
+{
+
+    /**
+     * @test
+     */
+    public function should_be_able_to_fake_permalink_before_creating_permalinnk()
+    {
+        $resolver = \Mockery::mock(PermalinkResolver::class);
+        $resolver->shouldReceive('permalinkForPostId')->with(15)->andReturn('expected permalink');
+
+        Permalink::fake($resolver);
+        $permalink = Permalink::fromPostId(15);
+
+        $this->assertEquals('expected permalink', (string)$permalink);
+    }
+
+    /**
+     * @test
+     */
+    public function should_be_able_to_fake_permalink_after_creating_permalinnk()
+    {
+        $resolver = \Mockery::mock(PermalinkResolver::class);
+        $resolver->shouldReceive('permalinkForPostId')->with(15)->andReturn('expected permalink');
+
+        $permalink = Permalink::fromPostId(15);
+        Permalink::fake($resolver);
+
+        $this->assertEquals('expected permalink', (string)$permalink);
+    }
+}