another convenience method.

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@13176 71c3de6d-444a-0410-be80-ed276b4c234a

test/src/main/java/org/jvnet/hudson/test/SingleFileSCM.java

@@ -11,6 +11,7 @@ import java.io.File;
 import java.io.IOException;
 import java.io.OutputStream;
 import java.nio.charset.Charset;
+import java.net.URL;
 
 import org.apache.commons.io.IOUtils;
 
@@ -33,6 +34,14 @@ public class SingleFileSCM extends NullSCM {
         this.contents = contents.getBytes(Charset.forName("UTF-8"));
     }
 
+    /**
+     * When a check out is requested, serve the contents of the URL and place it with the given path name. 
+     */
+    public SingleFileSCM(String path, URL resource) throws IOException {
+        this.path = path;
+        this.contents = IOUtils.toByteArray(resource.openStream());
+    }
+
     @Override
     public boolean checkout(AbstractBuild build, Launcher launcher, FilePath workspace, BuildListener listener, File changeLogFile) throws IOException, InterruptedException {
         listener.getLogger().println("Staging "+path);