Fix method name

src/Gutenberg/BlockParserInterface.php

@@ -13,5 +13,5 @@ interface BlockParserInterface
      * @param string $postContent Content of a WP post (e.g. WP_Post post_content).
      * @return BlockInterface[]
      */
-    public function parseBlock(string $postContent): array;
+    public function parseBlocks(string $postContent): array;
 }

tests/unit/Gutenberg/BlockInterfaceTest.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace WpOop\WordPress\Test\Unit\Gutenberg;
+
+use PHPUnit\Framework\MockObject\MockObject;
+use PHPUnit\Framework\TestCase;
+use WpOop\WordPress\Gutenberg\BlockInterface as Subject;
+
+class BlockInterfaceTest extends TestCase
+{
+    /**
+     * @return Subject|MockObject
+     */
+    protected function createSubject(): Subject
+    {
+        $mock = $this->getMockBuilder(Subject::class)
+            ->getMock();
+
+        return $mock;
+    }
+
+    public function testInstantiation()
+    {
+        {
+            $subject = $this->createSubject();
+        }
+
+        {
+            $this->assertInstanceOf(Subject::class, $subject);
+        }
+    }
+}

tests/unit/Gutenberg/BlockParserInterfaceTest.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace WpOop\WordPress\Test\Unit\Gutenberg;
+
+use PHPUnit\Framework\MockObject\MockObject;
+use PHPUnit\Framework\TestCase;
+use WpOop\WordPress\Gutenberg\BlockParserInterface as Subject;
+
+class BlockParserInterfaceTest extends TestCase
+{
+    /**
+     * @return Subject|MockObject
+     */
+    protected function createSubject(): Subject
+    {
+        $mock = $this->getMockBuilder(Subject::class)
+            ->getMock();
+
+        return $mock;
+    }
+
+    public function testInstantiation()
+    {
+        {
+            $subject = $this->createSubject();
+        }
+
+        {
+            $this->assertInstanceOf(Subject::class, $subject);
+        }
+    }
+}