Improve tag handling; update test

src/Node/ExampleNode.php

@@ -17,6 +17,8 @@
  */
 class ExampleNode implements ScenarioInterface, NamedScenarioInterface
 {
+    use TaggedNodeTrait;
+
     /**
      * @var string
      */
@@ -105,33 +107,6 @@ public function getTitle()
         return $this->text;
     }
 
-    /**
-     * Checks if outline is tagged with tag.
-     *
-     * @param string $tag
-     *
-     * @return bool
-     */
-    public function hasTag($tag)
-    {
-        return in_array($tag, $this->getTags());
-    }
-
-    /**
-     * Checks if outline has tags (both inherited from feature and own).
-     *
-     * @return bool
-     */
-    public function hasTags()
-    {
-        return count($this->getTags()) > 0;
-    }
-
-    /**
-     * Returns outline tags (including inherited from feature).
-     *
-     * @return string[]
-     */
     public function getTags()
     {
         return $this->tags;

src/Node/ExampleTableNode.php

@@ -15,8 +15,10 @@
  *
  * @author Konstantin Kudryashov <[email protected]>
  */
-class ExampleTableNode extends TableNode
+class ExampleTableNode extends TableNode implements TaggedNodeInterface
 {
+    use TaggedNodeTrait;
+
     /**
      * @var string[]
      */
@@ -52,11 +54,6 @@ public function getNodeType()
         return 'ExampleTable';
     }
 
-    /**
-     * Returns attached tags.
-     *
-     * @return string[]
-     */
     public function getTags()
     {
         return $this->tags;

src/Node/FeatureNode.php

@@ -21,6 +21,8 @@
  */
 class FeatureNode implements KeywordNodeInterface, TaggedNodeInterface
 {
+    use TaggedNodeTrait;
+
     /**
      * @var string|null
      */
@@ -136,33 +138,6 @@ public function getDescription()
         return $this->description;
     }
 
-    /**
-     * Checks if feature is tagged with tag.
-     *
-     * @param string $tag
-     *
-     * @return bool
-     */
-    public function hasTag($tag)
-    {
-        return in_array($tag, $this->tags);
-    }
-
-    /**
-     * Checks if feature has tags.
-     *
-     * @return bool
-     */
-    public function hasTags()
-    {
-        return count($this->tags) > 0;
-    }
-
-    /**
-     * Returns feature tags.
-     *
-     * @return string[]
-     */
     public function getTags()
     {
         return $this->tags;

src/Node/OutlineNode.php

@@ -17,6 +17,8 @@
  */
 class OutlineNode implements ScenarioInterface
 {
+    use TaggedNodeTrait;
+
     /**
      * @var string
      */
@@ -92,33 +94,6 @@ public function getTitle()
         return $this->title;
     }
 
-    /**
-     * Checks if outline is tagged with tag.
-     *
-     * @param string $tag
-     *
-     * @return bool
-     */
-    public function hasTag($tag)
-    {
-        return in_array($tag, $this->getTags());
-    }
-
-    /**
-     * Checks if outline has tags (both inherited from feature and own).
-     *
-     * @return bool
-     */
-    public function hasTags()
-    {
-        return count($this->getTags()) > 0;
-    }
-
-    /**
-     * Returns outline tags (including inherited from feature).
-     *
-     * @return string[]
-     */
     public function getTags()
     {
         return $this->tags;

src/Node/ScenarioNode.php

@@ -17,6 +17,8 @@
  */
 class ScenarioNode implements ScenarioInterface, NamedScenarioInterface
 {
+    use TaggedNodeTrait;
+
     /**
      * @var string
      */
@@ -83,33 +85,6 @@ public function getName(): ?string
         return $this->title;
     }
 
-    /**
-     * Checks if scenario is tagged with tag.
-     *
-     * @param string $tag
-     *
-     * @return bool
-     */
-    public function hasTag($tag)
-    {
-        return in_array($tag, $this->getTags());
-    }
-
-    /**
-     * Checks if scenario has tags (both inherited from feature and own).
-     *
-     * @return bool
-     */
-    public function hasTags()
-    {
-        return count($this->getTags()) > 0;
-    }
-
-    /**
-     * Returns scenario tags (including inherited from feature).
-     *
-     * @return array
-     */
     public function getTags()
     {
         return $this->tags;

src/Node/TaggedNodeInterface.php

@@ -27,14 +27,14 @@ interface TaggedNodeInterface extends NodeInterface
     public function hasTag($tag);
 
     /**
-     * Checks if node has tags (both inherited from feature and own).
+     * Checks if node has tags (including any inherited tags e.g. from feature).
      *
      * @return bool
      */
     public function hasTags();
 
     /**
-     * Returns node tags (including inherited from feature).
+     * Returns node tags (including any inherited tags e.g. from feature).
      *
      * @return list<string>
      */

src/Node/TaggedNodeTrait.php

@@ -0,0 +1,42 @@
+<?php
+
+/*
+ * This file is part of the Behat Gherkin Parser.
+ * (c) Konstantin Kudryashov <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Behat\Gherkin\Node;
+
+/**
+ * This trait partially implements {@see TaggedNodeInterface}.
+ *
+ * @internal
+ */
+trait TaggedNodeTrait
+{
+    /**
+     * @return list<string>
+     */
+    abstract public function getTags();
+
+    /**
+     * @param string $tag
+     *
+     * @return bool
+     */
+    public function hasTag($tag)
+    {
+        return in_array($tag, $this->getTags(), true);
+    }
+
+    /**
+     * @return bool
+     */
+    public function hasTags()
+    {
+        return $this->getTags() !== [];
+    }
+}

tests/Loader/ArrayLoaderTest.php

@@ -60,19 +60,19 @@ public function testLoadFeatures(): void
 
         $this->assertCount(2, $features);
 
-        $this->assertEquals(3, $features[0]->getLine());
-        $this->assertEquals('First feature', $features[0]->getTitle());
+        $this->assertSame(3, $features[0]->getLine());
+        $this->assertSame('First feature', $features[0]->getTitle());
         $this->assertNull($features[0]->getDescription());
         $this->assertNull($features[0]->getFile());
-        $this->assertEquals('en', $features[0]->getLanguage());
-        $this->assertFalse($features[0]->hasTags());
+        $this->assertSame('en', $features[0]->getLanguage());
+        $this->assertSame([], $features[0]->getTags());
 
-        $this->assertEquals(1, $features[1]->getLine());
+        $this->assertSame(1, $features[1]->getLine());
         $this->assertNull($features[1]->getTitle());
-        $this->assertEquals('Second feature description', $features[1]->getDescription());
+        $this->assertSame('Second feature description', $features[1]->getDescription());
         $this->assertNull($features[1]->getFile());
-        $this->assertEquals('ru', $features[1]->getLanguage());
-        $this->assertEquals(['some', 'tags'], $features[1]->getTags());
+        $this->assertSame('ru', $features[1]->getLanguage());
+        $this->assertSame(['some', 'tags'], $features[1]->getTags());
     }
 
     public function testLoadScenarios(): void
@@ -105,19 +105,19 @@ public function testLoadScenarios(): void
         $this->assertCount(3, $scenarios);
 
         $this->assertInstanceOf(ScenarioNode::class, $scenarios[0]);
-        $this->assertEquals('First scenario', $scenarios[0]->getTitle());
-        $this->assertFalse($scenarios[0]->hasTags());
-        $this->assertEquals(2, $scenarios[0]->getLine());
+        $this->assertSame('First scenario', $scenarios[0]->getTitle());
+        $this->assertSame([], $scenarios[0]->getTags());
+        $this->assertSame(2, $scenarios[0]->getLine());
 
         $this->assertInstanceOf(ScenarioNode::class, $scenarios[1]);
         $this->assertNull($scenarios[1]->getTitle());
-        $this->assertEquals(['second', 'scenario', 'tags'], $scenarios[1]->getTags());
-        $this->assertEquals(1, $scenarios[1]->getLine());
+        $this->assertSame(['second', 'scenario', 'tags'], $scenarios[1]->getTags());
+        $this->assertSame(1, $scenarios[1]->getLine());
 
         $this->assertInstanceOf(ScenarioNode::class, $scenarios[2]);
         $this->assertNull($scenarios[2]->getTitle());
-        $this->assertEquals(['third', 'scenario'], $scenarios[2]->getTags());
-        $this->assertEquals(3, $scenarios[2]->getLine());
+        $this->assertSame(['third', 'scenario'], $scenarios[2]->getTags());
+        $this->assertSame(3, $scenarios[2]->getLine());
     }
 
     public function testLoadOutline(): void
@@ -148,14 +148,14 @@ public function testLoadOutline(): void
         $this->assertCount(2, $outlines);
 
         $this->assertInstanceOf(OutlineNode::class, $outlines[0]);
-        $this->assertEquals('First outline', $outlines[0]->getTitle());
-        $this->assertFalse($outlines[0]->hasTags());
-        $this->assertEquals(2, $outlines[0]->getLine());
+        $this->assertSame('First outline', $outlines[0]->getTitle());
+        $this->assertSame([], $outlines[0]->getTags());
+        $this->assertSame(2, $outlines[0]->getLine());
 
         $this->assertInstanceOf(OutlineNode::class, $outlines[1]);
         $this->assertNull($outlines[1]->getTitle());
-        $this->assertEquals(['second', 'outline', 'tags'], $outlines[1]->getTags());
-        $this->assertEquals(1, $outlines[1]->getLine());
+        $this->assertSame(['second', 'outline', 'tags'], $outlines[1]->getTags());
+        $this->assertSame(1, $outlines[1]->getLine());
     }
 
     public function testOutlineExamples(): void