adding tests for mapped superclass

tests/Doctrine/Tests/Models/Mapping/BaseArticle.php

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+<?php
+
+namespace Doctrine\Tests\Models\Mapping;
+
+/**
+ * @Document
+ */
+class BaseArticle
+{
+    /** @Id */
+    public $id;
+    /** @Field(type="string") */
+    public $topic;
+}

tests/Doctrine/Tests/Models/Mapping/ExtendingClass.php

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+<?php
+
+namespace Doctrine\Tests\Models\Mapping;
+
+/**
+ * Model to test extending another model
+ *
+ * @Document
+ */
+class ExtendingClass extends MappedSuperclass
+{
+    /** @Field(type="string") */
+    public $headline;
+}

tests/Doctrine/Tests/Models/Mapping/HeadlineArticle.php

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+<?php
+
+namespace Doctrine\Tests\Models\Mapping;
+
+/**
+ * Model to test extending another model
+ *
+ * @Document
+ */
+class HeadlineArticle extends BaseArticle
+{
+    /** @Field(type="string") */
+    public $headline;
+}

tests/Doctrine/Tests/Models/Mapping/MappedSuperclass.php

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+<?php
+
+namespace Doctrine\Tests\Models\Mapping;
+
+/**
+ * @MappedSuperclass
+ */
+class MappedSuperclass
+{
+    /** @Id */
+    public $id;
+    /** @Field(type="string") */
+    public $topic;
+}

tests/Doctrine/Tests/ODM/CouchDB/Functional/Mapping/DocumentInheritTest.php

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+<?php
+
+namespace Doctrine\Tests\ODM\CouchDB\Functional\Mapping;
+
+use Doctrine\ODM\CouchDB\DocumentManager;
+use Doctrine\Tests\Models\Mapping\HeadlineArticle;
+use Doctrine\Tests\ODM\CouchDB\CouchDBFunctionalTestCase;
+use Doctrine\Tests\Models\Mapping\ExtendingClass;
+
+/**
+ * Test about mapped superclass and about extending a base document
+ */
+class DocumentInheritTest extends CouchDBFunctionalTestCase
+{
+    /** @var DocumentManager */
+    private $dm;
+
+    public function setUp()
+    {
+        $this->dm = $this->createDocumentManager();
+    }
+
+    public function testLoadingParentClass()
+    {
+        $document = new HeadlineArticle();
+        $document->topic = 'Superclass test';
+        $document->headline = 'test test test';
+        $this->dm->persist($document);
+        $this->dm->flush();
+        $id = $document->id;
+
+        $this->dm->clear();
+
+        $doc = $this->dm->find('Doctrine\Tests\Models\Mapping\HeadlineArticle', $id);
+        $this->assertInstanceOf('\Doctrine\Tests\Models\Mapping\HeadlineArticle', $doc);
+        $this->assertEquals('test test test', $doc->headline);
+        $this->assertEquals('Superclass test', $doc->topic);
+    }
+
+    public function testLoadingMappedsuperclass()
+    {
+        $document = new ExtendingClass();
+        $document->topic = 'Superclass test';
+        $document->headline = 'test test test';
+        $this->dm->persist($document);
+        $this->dm->flush();
+        $id = $document->id;
+
+        $this->dm->clear();
+
+        $doc = $this->dm->find('Doctrine\Tests\Models\Mapping\ExtendingClass', $id);
+        $this->assertInstanceOf('\Doctrine\Tests\Models\Mapping\ExtendingClass', $doc);
+        $this->assertEquals('test test test', $doc->headline);
+        $this->assertEquals('Superclass test', $doc->topic);
+    }
+}