diff --git a/brouter-core/build.gradle b/brouter-core/build.gradle
index c96982f..cb7dde5 100644
--- a/brouter-core/build.gradle
+++ b/brouter-core/build.gradle
@@ -3,11 +3,12 @@ plugins {
 }
 
 dependencies {
-
     implementation project(':brouter-mapaccess')
     implementation project(':brouter-util')
     implementation project(':brouter-expressions')
     implementation project(':brouter-codec')
-	testImplementation 'junit:junit:4.13.1'
-
+    testImplementation 'junit:junit:4.13.2'
 }
+
+// MapcreatorTest generates segments which are used in tests
+test.dependsOn ':brouter-map-creator:test'
diff --git a/brouter-core/src/test/java/btools/router/RoutingEngineTest.java b/brouter-core/src/test/java/btools/router/RoutingEngineTest.java
index 1ef99f2..ba2dc90 100644
--- a/brouter-core/src/test/java/btools/router/RoutingEngineTest.java
+++ b/brouter-core/src/test/java/btools/router/RoutingEngineTest.java
@@ -1,47 +1,46 @@
 package btools.router;
 
-import java.util.*;
-
 import org.junit.Assert;
+import org.junit.Before;
 import org.junit.Test;
 
-import java.net.URL;
 import java.io.File;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.List;
 
 public class RoutingEngineTest {
   private File workingDir;
 
-  @Test
-  public void routerTest() throws Exception {
+  @Before
+  public void before() {
     URL resulturl = this.getClass().getResource("/testtrack0.gpx");
-    Assert.assertTrue("reference result not found: ", resulturl != null);
+    Assert.assertNotNull("reference result not found: ", resulturl);
     File resultfile = new File(resulturl.getFile());
     workingDir = resultfile.getParentFile();
+  }
 
-    String msg;
-
-    // first test: route within dreiech test-map crossing tile border
-
-    msg = calcRoute(8.720897, 50.002515, 8.723658, 49.997510, "testtrack");
-
+  @Test
+  public void routeCrossingSegmentBorder() {
+    String msg = calcRoute(8.720897, 50.002515, 8.723658, 49.997510, "testtrack");
     // error message from router?
-    Assert.assertTrue("routing failed: " + msg, msg == null);
+    Assert.assertNull("routing failed: " + msg, msg);
 
     // if the track didn't change, we expect the first alternative also
     File a1 = new File(workingDir, "testtrack1.gpx");
     Assert.assertTrue("result content missmatch", a1.exists());
-
-    // second test: to-point far off
-
-    msg = calcRoute(8.720897, 50.002515, 16.723658, 49.997510, "notrack");
-
-    Assert.assertTrue(msg, msg != null && msg.indexOf("not found") >= 0);
   }
 
-  private String calcRoute(double flon, double flat, double tlon, double tlat, String trackname) throws Exception {
+  @Test
+  public void routeDestinationPointFarOff() {
+    String msg = calcRoute(8.720897, 50.002515, 16.723658, 49.997510, "notrack");
+    Assert.assertTrue(msg, msg != null && msg.contains("not found"));
+  }
+
+  private String calcRoute(double flon, double flat, double tlon, double tlat, String trackname) {
     String wd = workingDir.getAbsolutePath();
 
-    List<OsmNodeNamed> wplist = new ArrayList<OsmNodeNamed>();
+    List<OsmNodeNamed> wplist = new ArrayList<>();
     OsmNodeNamed n;
     n = new OsmNodeNamed();
     n.name = "from";
@@ -57,7 +56,6 @@ public class RoutingEngineTest {
 
     RoutingContext rctx = new RoutingContext();
     rctx.localFunction = wd + "/../../../../misc/profiles2/trekking.brf";
-    //   c.setAlternativeIdx( 1 );
 
     RoutingEngine re = new RoutingEngine(
       wd + "/" + trackname,
diff --git a/brouter-mapaccess/build.gradle b/brouter-mapaccess/build.gradle
index c920239..40189cb 100644
--- a/brouter-mapaccess/build.gradle
+++ b/brouter-mapaccess/build.gradle
@@ -6,4 +6,8 @@ dependencies {
     implementation project(':brouter-util')
     implementation project(':brouter-codec')
     implementation project(':brouter-expressions')
+    testImplementation 'junit:junit:4.13.2'
 }
+
+// MapcreatorTest generates segments which are used in tests
+test.dependsOn ':brouter-map-creator:test'
diff --git a/brouter-mapaccess/src/test/java/btools/mapaccess/IntegrityCheckTest.java b/brouter-mapaccess/src/test/java/btools/mapaccess/IntegrityCheckTest.java
index fa3a0f9..6685895 100644
--- a/brouter-mapaccess/src/test/java/btools/mapaccess/IntegrityCheckTest.java
+++ b/brouter-mapaccess/src/test/java/btools/mapaccess/IntegrityCheckTest.java
@@ -1,28 +1,24 @@
 package btools.mapaccess;
 
-import java.io.File;
-import java.net.URL;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
 
-import org.junit.Assert;
 import org.junit.Test;
 
-import btools.mapaccess.PhysicalFile;
+import java.io.File;
+import java.io.IOException;
 
 public class IntegrityCheckTest {
-  private File workingDir;
-
   @Test
-  public void integrityTest() throws Exception {
-    URL resulturl = this.getClass().getResource("/testtrack0.gpx");
-    Assert.assertTrue("reference result not found: ", resulturl != null);
-    File resultfile = new File(resulturl.getFile());
-    workingDir = resultfile.getParentFile();
-
-    File segmentDir = new File(workingDir, "/../../../../brouter-map-creator/build/resources/test/tmp/segments");
+  public void integrityTest() throws IOException {
+    File workingDir = new File(".").getCanonicalFile();
+    File segmentDir = new File(workingDir, "../brouter-map-creator/build/resources/test/tmp/segments");
     File[] files = segmentDir.listFiles();
 
+    assertNotNull("Missing segments", files);
+
     for (File f : files) {
-      PhysicalFile.checkFileIntegrity(f);
+      assertNull(PhysicalFile.checkFileIntegrity(f));
     }
   }