Always applied criteria (#78)

* Introducing always applied criteria

* Simplest test for AlwaysAppliedCriteria

src/KGzocha/Searcher/Criteria/AlwaysAppliedCriteria.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace KGzocha\Searcher\Criteria;
+
+/**
+ * @author Krzysztof Gzocha <[email protected]>
+ */
+class AlwaysAppliedCriteria implements CriteriaInterface
+{
+    /**
+     * @inheritDoc
+     */
+    public function shouldBeApplied()
+    {
+        return true;
+    }
+}

tests/Criteria/AlwaysAppliedCriteriaTest.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace KGzocha\Searcher\Test\Criteria;
+
+use KGzocha\Searcher\Criteria\AlwaysAppliedCriteria;
+
+/**
+ * @author Krzysztof Gzocha <[email protected]>
+ */
+class AlwaysAppliedCriteriaTest extends \PHPUnit_Framework_TestCase
+{
+    public function testShouldBeApplied()
+    {
+        $criteria = new AlwaysAppliedCriteria();
+
+        $this->assertTrue($criteria->shouldBeApplied());
+    }
+}