From 30635812387f51399c6703caedc5c8bfb09b4e2c Mon Sep 17 00:00:00 2001
From: Matthew Jason Benson <mbenson@apache.org>
Date: Wed, 20 Sep 2006 17:05:25 +0000
Subject: [PATCH] Differentiate between no RCs specified and no matching
 Resources.

git-svn-id: https://svn.apache.org/repos/asf/ant/antlibs/antunit/trunk@448264 13f79535-47bb-0310-9956-ffa450edef68
---
 src/main/org/apache/ant/antunit/AntUnit.java | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/main/org/apache/ant/antunit/AntUnit.java b/src/main/org/apache/ant/antunit/AntUnit.java
index 3b3699e..c4f4425 100644
--- a/src/main/org/apache/ant/antunit/AntUnit.java
+++ b/src/main/org/apache/ant/antunit/AntUnit.java
@@ -68,7 +68,7 @@ public class AntUnit extends Task {
     /**
      * The build files to process.
      */
-    private Union buildFiles = new Union();
+    private Union buildFiles;
 
     /**
      * project instance for the build file currently under test.
@@ -123,6 +123,9 @@ public class AntUnit extends Task {
      * adds build files to run as tests.
      */
     public void add(ResourceCollection rc) {
+        if (buildFiles == null) {
+            buildFiles = new Union();
+        }
         buildFiles.add(rc);
     }
 
@@ -156,7 +159,7 @@ public class AntUnit extends Task {
     }
 
     public void execute() {
-        if (buildFiles.size() == 0) {
+        if (buildFiles == null) {
             throw new BuildException(ERROR_NO_TESTS);
         }
         doResourceCollection(buildFiles);
@@ -179,12 +182,13 @@ public class AntUnit extends Task {
      * Processes a ResourceCollection.
      */
     private void doResourceCollection(ResourceCollection rc) {
+        //should relax this restriction if/when Ant core allows non-files
         if (!rc.isFilesystemOnly()) {
             throw new BuildException(ERROR_NON_FILES);
         }
 
         Iterator i = rc.iterator();
-        while(i.hasNext()) {
+        while (i.hasNext()) {
             FileResource r = (FileResource) i.next();
             if (r.isExists()) {
                 doFile(r.getFile());
@@ -439,4 +443,4 @@ public class AntUnit extends Task {
         public void messageLogged(BuildEvent event) {}
     }
 
-}
\ No newline at end of file
+}