1 files changed, 82 insertions, 0 deletions
diff --git a/www/wiki/extensions/SemanticMediaWiki/tests/phpunit/Unit/Utils/CircularReferenceGuardTest.php b/www/wiki/extensions/SemanticMediaWiki/tests/phpunit/Unit/Utils/CircularReferenceGuardTest.php
new file mode 100644
index 00000000..cb42486a
--- /dev/null
+++ b/www/wiki/extensions/SemanticMediaWiki/tests/phpunit/Unit/Utils/CircularReferenceGuardTest.php
@@ -0,0 +1,82 @@
+<?php
+
+namespace SMW\Tests\Utils;
+
+use SMW\Utils\CircularReferenceGuard;
+
+/**
+ * @covers \SMW\Utils\CircularReferenceGuard
+ * @group semantic-mediawiki
+ *
+ * @license GNU GPL v2+
+ * @since 2.2
+ *
+ * @author mwjames
+ */
+class CircularReferenceGuardTest extends \PHPUnit_Framework_TestCase {
+
+	public function testCanConstruct() {
+
+		$this->assertInstanceOf(
+			'\SMW\Utils\CircularReferenceGuard',
+			new CircularReferenceGuard()
+		);
+	}
+
+	public function testRoundtripForRegisteredNamespace() {
+
+		$instance = new CircularReferenceGuard( 'bar' );
+		$instance->setMaxRecursionDepth( 1 );
+
+		$this->assertEquals(
+			0,
+			$instance->get( 'Foo' )
+		);
+
+		$instance->mark( 'Foo' );
+		$instance->mark( 'Foo' );
+
+		$this->assertEquals(
+			2,
+			$instance->get( 'Foo' )
+		);
+
+		$this->assertTrue(
+			$instance->isCircular( 'Foo' )
+		);
+
+		$instance->unmark( 'Foo' );
+
+		$this->assertEquals(
+			1,
+			$instance->get( 'Foo' )
+		);
+
+		$this->assertFalse(
+			$instance->isCircular( 'Foo' )
+		);
+
+		$instance->unmark( 'notBeenMarkedBefore' );
+	}
+
+	/**
+	 * @depends testRoundtripForRegisteredNamespace
+	 */
+	public function testVerifyRetainedReferenceFromPreviousInvocation() {
+
+		$instance = new CircularReferenceGuard( 'bar' );
+
+		$this->assertEquals(
+			1,
+			$instance->get( 'Foo' )
+		);
+
+		$instance->reset( 'bar' );
+
+		$this->assertEquals(
+			0,
+			$instance->get( 'Foo' )
+		);
+	}
+
+}