diff --git a/Modules/PhotoacousticsAlgorithms/test/mitkPhotoacousticMotionCorrectionFilterTest.cpp b/Modules/PhotoacousticsAlgorithms/test/mitkPhotoacousticMotionCorrectionFilterTest.cpp
index 2c40d3d290..f0acc0eb92 100644
--- a/Modules/PhotoacousticsAlgorithms/test/mitkPhotoacousticMotionCorrectionFilterTest.cpp
+++ b/Modules/PhotoacousticsAlgorithms/test/mitkPhotoacousticMotionCorrectionFilterTest.cpp
@@ -1,59 +1,87 @@
 /*===================================================================
 
   The Medical Imaging Interaction Toolkit (MITK)
 
   Copyright (c) German Cancer Research Center,
   Division of Medical and Biological Informatics.
   All rights reserved.
 
   This software is distributed WITHOUT ANY WARRANTY; without
   even the implied warranty of MERCHANTABILITY or FITNESS FOR
   A PARTICULAR PURPOSE.
 
   See LICENSE.txt or http://www.mitk.org for details.
 
   ===================================================================*/
 
 #include <mitkTestFixture.h>
 #include <mitkTestingMacros.h>
 
 #include <mitkPhotoacousticMotionCorrectionFilter.h>
 
 class mitkPhotoacousticMotionCorrectionFilterTestSuite : public mitk::TestFixture
 {
   CPPUNIT_TEST_SUITE(mitkPhotoacousticMotionCorrectionFilterTestSuite);
-  MITK_TEST(testSomething);
+  MITK_TEST(testSettingFirstInput);
+  MITK_TEST(testSettingSecondInput);
+  MITK_TEST(testNoThirdInput);
   CPPUNIT_TEST_SUITE_END();
 
 private:
   mitk::PhotoacousticMotionCorrectionFilter::Pointer filter;
   mitk::Image::Pointer image;
 
 public:
   void setUp() override {
     // get the filter I need
     filter = mitk::PhotoacousticMotionCorrectionFilter::New();
     // get a 3d mitk image
     image = mitk::Image::New();
     unsigned int * dimensions = new unsigned int[3] {2, 2, 2,};
     mitk::PixelType pt = mitk::MakeScalarPixelType<float>();
     image->Initialize(pt, 3, dimensions);
     delete[] dimensions;
-    double * data = new double[8];
+    double * data = new double[8] {0, 0, 0, 0, 0, 0, 0, 0};
     image->SetVolume(data);
     delete[] data;
   }
 
   void tearDown() override {
   }
 
-  void testSomething() {
-    CPPUNIT_ASSERT(true);
+  void testSettingFirstInput() {
+    filter->SetInput(0, image);
+    mitk::Image::Pointer out = filter->GetInput(0);
+    CPPUNIT_ASSERT_EQUAL(image, out);
   }
 
-  void testSettingFirstInput() {
+  void testSettingSecondInput() {
+    filter->SetInput(1, image);
+    mitk::Image::Pointer out = filter->GetInput(1);
+    CPPUNIT_ASSERT_EQUAL(image, out);
+  }
+
+  void testNoThirdInput() {
+    CPPUNIT_ASSERT_ASSERTION_FAIL(filter->SetInput(2, image));
+    // CPPUNIT_ASSERT(true);
+  }
+
+  void testGetFirstEmptyOutput() {
+    
+  }
+
+  void testGetSecondEmptyOutput() {
+
+  }
+
+  void testSameInOutDimensions() {
     
   }
+
+  void testSameInputDimensions() {
+    
+  }
+
 };
 
 MITK_TEST_SUITE_REGISTRATION(mitkPhotoacousticMotionCorrectionFilter)