diff --git a/tests/lib/backgroundjob/timedjob.php b/tests/lib/backgroundjob/timedjob.php
index 0af933afef873adea45a7e3bfb84557ccac433fa..f3c3eb4d0ddbbeddb618c34b73a975ff77631fc3 100644
--- a/tests/lib/backgroundjob/timedjob.php
+++ b/tests/lib/backgroundjob/timedjob.php
@@ -41,6 +41,7 @@ class TimedJob extends \PHPUnit_Framework_TestCase {
 			$this->fail("job should have run");
 		} catch (JobRun $e) {
 		}
+		$this->assertTrue(true);
 	}
 
 	public function testShouldNotRunWithinInterval() {
@@ -50,6 +51,7 @@ class TimedJob extends \PHPUnit_Framework_TestCase {
 		} catch (JobRun $e) {
 			$this->fail("job should not have run");
 		}
+		$this->assertTrue(true);
 	}
 
 	public function testShouldNotTwice() {
@@ -64,5 +66,6 @@ class TimedJob extends \PHPUnit_Framework_TestCase {
 				$this->fail("job should not have run the second time");
 			}
 		}
+		$this->assertTrue(true);
 	}
 }
diff --git a/tests/lib/hooks/basicemitter.php b/tests/lib/hooks/basicemitter.php
index f48dc53c5635d1ae1cdf5ca36edcef96c5cfd09a..0eae730d03056f2e159b0dc228301433043511c4 100644
--- a/tests/lib/hooks/basicemitter.php
+++ b/tests/lib/hooks/basicemitter.php
@@ -155,6 +155,8 @@ class BasicEmitter extends \PHPUnit_Framework_TestCase {
 		$this->emitter->listen('Test', 'test', $listener);
 		$this->emitter->removeListener('Test', 'test', $listener);
 		$this->emitter->emitEvent('Test', 'test');
+
+		$this->assertTrue(true);
 	}
 
 	public function testRemoveWildcardListener() {
@@ -168,6 +170,8 @@ class BasicEmitter extends \PHPUnit_Framework_TestCase {
 		$this->emitter->listen('Test', 'test', $listener2);
 		$this->emitter->removeListener('Test', 'test');
 		$this->emitter->emitEvent('Test', 'test');
+
+		$this->assertTrue(true);
 	}
 
 	public function testRemoveWildcardMethod() {
@@ -179,6 +183,8 @@ class BasicEmitter extends \PHPUnit_Framework_TestCase {
 		$this->emitter->removeListener('Test', null, $listener);
 		$this->emitter->emitEvent('Test', 'test');
 		$this->emitter->emitEvent('Test', 'foo');
+
+		$this->assertTrue(true);
 	}
 
 	public function testRemoveWildcardScope() {
@@ -190,6 +196,8 @@ class BasicEmitter extends \PHPUnit_Framework_TestCase {
 		$this->emitter->removeListener(null, 'test', $listener);
 		$this->emitter->emitEvent('Test', 'test');
 		$this->emitter->emitEvent('Bar', 'test');
+
+		$this->assertTrue(true);
 	}
 
 	public function testRemoveWildcardScopeAndMethod() {
@@ -203,6 +211,8 @@ class BasicEmitter extends \PHPUnit_Framework_TestCase {
 		$this->emitter->emitEvent('Test', 'test');
 		$this->emitter->emitEvent('Test', 'foo');
 		$this->emitter->emitEvent('Bar', 'foo');
+
+		$this->assertTrue(true);
 	}
 
 	/**
@@ -219,6 +229,8 @@ class BasicEmitter extends \PHPUnit_Framework_TestCase {
 		$this->emitter->listen('Test', 'test', $listener2);
 		$this->emitter->removeListener('Test', 'test', $listener1);
 		$this->emitter->emitEvent('Test', 'test');
+
+		$this->assertTrue(true);
 	}
 
 	/**
@@ -232,6 +244,8 @@ class BasicEmitter extends \PHPUnit_Framework_TestCase {
 		$this->emitter->listen('Test', 'foo', $listener);
 		$this->emitter->removeListener('Test', 'foo', $listener);
 		$this->emitter->emitEvent('Test', 'test');
+
+		$this->assertTrue(true);
 	}
 
 	/**
@@ -245,6 +259,8 @@ class BasicEmitter extends \PHPUnit_Framework_TestCase {
 		$this->emitter->listen('Bar', 'test', $listener);
 		$this->emitter->removeListener('Bar', 'test', $listener);
 		$this->emitter->emitEvent('Test', 'test');
+
+		$this->assertTrue(true);
 	}
 
 	/**
@@ -257,5 +273,7 @@ class BasicEmitter extends \PHPUnit_Framework_TestCase {
 		$this->emitter->listen('Test', 'test', $listener);
 		$this->emitter->removeListener('Bar', 'test', $listener);
 		$this->emitter->emitEvent('Test', 'test');
+
+		$this->assertTrue(true);
 	}
 }
diff --git a/tests/lib/session/session.php b/tests/lib/session/session.php
index 72dee44e7cb14e4b35f096fba62428c612d52766..9ce11274c840d6b715e9bd621625ec8272b916a3 100644
--- a/tests/lib/session/session.php
+++ b/tests/lib/session/session.php
@@ -44,7 +44,9 @@ abstract class Session extends \PHPUnit_Framework_TestCase {
 	}
 
 	public function testRemoveNonExisting() {
+		$this->assertFalse($this->instance->exists('foo'));
 		$this->instance->remove('foo');
+		$this->assertFalse($this->instance->exists('foo'));
 	}
 
 	public function testNotExistsAfterClear() {