Added tests for #46

Added tests to number 46 to verify behavior, and updated `AbstractDb` to
implement `AdapterAwareInterface`, which was the point of composing the
trait in the first place.

Author: weierophinney

src/Db/AbstractDb.php

@@ -11,6 +11,7 @@
 
 use Traversable;
 use Zend\Db\Adapter\Adapter as DbAdapter;
+use Zend\Db\Adapter\AdapterAwareInterface;
 use Zend\Db\Adapter\AdapterAwareTrait;
 use Zend\Db\Sql\Select;
 use Zend\Db\Sql\Sql;
@@ -22,7 +23,7 @@
 /**
  * Class for Database record validation
  */
-abstract class AbstractDb extends AbstractValidator
+abstract class AbstractDb extends AbstractValidator implements AdapterAwareInterface
 {
     use AdapterAwareTrait;
 

test/Db/AbstractDbTest.php

@@ -10,6 +10,8 @@
 namespace ZendTest\Validator\Db;
 
 use ZendTest\Validator\Db\TestAsset\ConcreteDbValidator;
+use Zend\Db\Adapter\AdapterAwareInterface;
+use Zend\Db\Adapter\Adapter;
 use Zend\Db\Sql\Select;
 
 /**
@@ -31,17 +33,21 @@ public function setUp()
 
     public function testConstructorWithNoTableAndSchemaKey()
     {
-        $this->setExpectedException('Zend\Validator\Exception\InvalidArgumentException',
-        'Table or Schema option missing!');
+        $this->setExpectedException(
+            'Zend\Validator\Exception\InvalidArgumentException',
+            'Table or Schema option missing!'
+        );
         $this->validator = new ConcreteDbValidator([
             'field' => 'field',
         ]);
     }
 
     public function testConstructorWithNoFieldKey()
     {
-        $this->setExpectedException('Zend\Validator\Exception\InvalidArgumentException',
-        'Field option missing!');
+        $this->setExpectedException(
+            'Zend\Validator\Exception\InvalidArgumentException',
+            'Field option missing!'
+        );
         $validator = new ConcreteDbValidator([
             'schema' => 'schema',
             'table' => 'table',
@@ -87,4 +93,27 @@ public function testGetExclude()
 
         $this->assertEquals($field, $this->validator->getField());
     }
+
+    /**
+     * @group #46
+     */
+    public function testImplementationsAreDbAdapterAware()
+    {
+        $this->assertInstanceOf(AdapterAwareInterface::class, $this->validator);
+    }
+
+    /**
+     * @group #46
+     */
+    public function testSetAdapterIsEquivalentToSetDbAdapter()
+    {
+        $adapterFirst = $this->prophesize(Adapter::class)->reveal();
+        $adapterSecond = $this->prophesize(Adapter::class)->reveal();
+
+        $this->validator->setAdapter($adapterFirst);
+        $this->assertAttributeSame($adapterFirst, 'adapter', $this->validator);
+
+        $this->validator->setDbAdapter($adapterSecond);
+        $this->assertAttributeSame($adapterSecond, 'adapter', $this->validator);
+    }
 }