Moved test files to better location

src/test/java/de/rwu/easydrop/api/client/AmazonProductDataSourceTest.java

@@ -150,6 +150,7 @@ class AmazonProductDataSourceTest {
 
         AmazonProductDataSource dataSource = mock(AmazonProductDataSource.class);
         URL mockURL = mock(URL.class);
+        when(dataSource.getDataOrigin()).thenReturn(demoDataOrigin);
         when(dataSource.createApiUrl(demoProductId)).thenReturn(mockURL);
         when(dataSource.getProductDTOById(demoProductId)).thenCallRealMethod();
         HttpURLConnection mockConnection = mock(HttpURLConnection.class);
@@ -170,6 +171,7 @@ class AmazonProductDataSourceTest {
         // Set up the test environment
         AmazonProductDataSource dataSource = mock(AmazonProductDataSource.class);
         URL mockURL = mock(URL.class);
+        when(dataSource.getDataOrigin()).thenReturn(demoDataOrigin);
         when(dataSource.createApiUrl(demoProductId)).thenReturn(mockURL);
         when(dataSource.getProductDTOById(demoProductId)).thenCallRealMethod();
         when(dataSource.buildProductDTO(any(), anyString())).thenCallRealMethod();

src/test/resources/empty.properties

@@ -0,0 +1 @@
+

src/test/resources/testdata.properties

@@ -0,0 +1 @@
+API_KEY=keyIsHere