added Import command unit test

Author: Martynas Sudintas

Tests/Functional/Command/ImportCommandTest.php

@@ -134,6 +134,21 @@ public function testConfigOnlyOptionImport()
         $this->assertGreaterThan(0, $this->getTranslationsCount(['lt'], ['messages']));
     }
 
+    /**
+     * Tests if exception is thrown when unknown bundle is provided.
+     *
+     * @expectedException \InvalidArgumentException
+     */
+    public function testIncorrectBundleImportException()
+    {
+        $this->commandTester->execute(
+            [
+                'command' => $this->command->getName(),
+                'bundle' => 'Acme\AcmeTestBundle',
+            ]
+        );
+    }
+
     /**
      * Returns translations count.
      *