fix graphics tests

converter-graphics/src/test/java/lcsb/mapviewer/converter/graphics/PdfImageGeneratorTest.java

 package lcsb.mapviewer.converter.graphics;
 
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
-import static org.mockito.ArgumentMatchers.any;
-import static org.mockito.Mockito.times;
-import static org.mockito.Mockito.verify;
-
-import java.awt.Color;
-import java.awt.Graphics2D;
-import java.awt.geom.Point2D;
-import java.awt.geom.Rectangle2D;
-import java.io.File;
-import java.io.IOException;
-
-import org.junit.After;
-import org.junit.Before;
-import org.junit.Test;
-import org.mockito.Mockito;
-
 import lcsb.mapviewer.commands.CreateHierarchyCommand;
 import lcsb.mapviewer.common.Configuration;
 import lcsb.mapviewer.converter.graphics.AbstractImageGenerator.Params;
@@ -28,6 +10,23 @@ import lcsb.mapviewer.model.map.layout.graphics.LayerText;
 import lcsb.mapviewer.model.map.model.Model;
 import lcsb.mapviewer.model.map.model.ModelFullIndexed;
 import lcsb.mapviewer.model.map.species.Complex;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.Mockito;
+
+import java.awt.Color;
+import java.awt.Graphics2D;
+import java.awt.geom.Point2D;
+import java.awt.geom.Rectangle2D;
+import java.io.File;
+import java.io.IOException;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
 
 public class PdfImageGeneratorTest extends GraphicsTestFunctions {
 
@@ -45,17 +44,18 @@ public class PdfImageGeneratorTest extends GraphicsTestFunctions {
 
     File f = new File(filename);
     if (f.exists()) {
-      f.delete();
+      assertTrue(f.delete());
     }
 
     assertFalse(f.exists());
 
     Model model = createCompartmentModel();
     Layer layer = model.getLayers().iterator().next();
+    layer.setName(CreateHierarchyCommand.PATHWAY_LAYER_NAME);
 
     layer.addLayerText(new LayerText(new Rectangle2D.Double(10, 10, 500, 500), "X asd"));
     layer.addLayerText(new LayerText(new Rectangle2D.Double(20, 20, 200, 200), "Y qwe ret"));
-    layer.addLayerText(new LayerText(new Rectangle2D.Double(100, 100, 199, 220), "Z dgf fsd aaewq ret"));
+    layer.addLayerText(new LayerText(new Rectangle2D.Double(100, 100, 199, 220), "Z dgf fsd blah ret"));
 
     for (final LayerText text : layer.getTexts()) {
       text.setZ(0);
@@ -71,7 +71,7 @@ public class PdfImageGeneratorTest extends GraphicsTestFunctions {
     pig.saveToFile("tmp.pdf");
 
     assertTrue(f.exists());
-    f.delete();
+    assertTrue(f.delete());
     assertFalse(f.exists());
   }
 
@@ -81,7 +81,7 @@ public class PdfImageGeneratorTest extends GraphicsTestFunctions {
 
     File f = new File(filename);
     if (f.exists()) {
-      f.delete();
+      assertTrue(f.delete());
     }
 
     assertFalse(f.exists());