Provide messages when JUnit assertions fail

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@272973 13f79535-47bb-0310-9956-ffa450edef68

src/testcases/org/apache/tools/ant/taskdefs/BUnzip2Test.java

@@ -80,7 +80,8 @@ public class BUnzip2Test extends BuildFileTest {
     public void testRealTest() throws java.io.IOException {
         FileUtils fileUtils = FileUtils.newFileUtils();
         executeTarget("realTest");
-        assertTrue(fileUtils.contentEquals(project.resolveFile("expected/asf-logo-huge.tar"),
-                                           project.resolveFile("asf-logo-huge.tar")));
+        assertTrue("File content mismatch after bunzip2",
+            fileUtils.contentEquals(project.resolveFile("expected/asf-logo-huge.tar"),
+                                    project.resolveFile("asf-logo-huge.tar")));
     }
 }

src/testcases/org/apache/tools/ant/taskdefs/BZip2Test.java

@@ -80,8 +80,9 @@ public class BZip2Test extends BuildFileTest {
     public void testRealTest() throws java.io.IOException {
         FileUtils fileUtils = FileUtils.newFileUtils();
         executeTarget("realTest");
-        assertTrue(fileUtils.contentEquals(project.resolveFile("expected/asf-logo-huge.tar.bz2"),
-                                           project.resolveFile("asf-logo-huge.tar.bz2")));
+        assertTrue("File content mismatch",
+            fileUtils.contentEquals(project.resolveFile("expected/asf-logo-huge.tar.bz2"),
+                                    project.resolveFile("asf-logo-huge.tar.bz2")));
     }
 
     public void testDateCheck(){

src/testcases/org/apache/tools/ant/taskdefs/InitializeClassTest.java

@@ -89,7 +89,7 @@ public class InitializeClassTest extends BuildFileTest {
         System.setOut(ps);
         newps.close();
         FileUtils fu = FileUtils.newFileUtils();
-        assertTrue(fu.contentEquals(f1, f2));
+        assertTrue("Forked - non-forked mismatch", fu.contentEquals(f1, f2));
     }
 
     public void tearDown() {