diff --git a/Tests/Tools/ToolsTest.j b/Tests/Tools/ToolsTest.j
index bf541005a..a15d1df01 100644
--- a/Tests/Tools/ToolsTest.j
+++ b/Tests/Tools/ToolsTest.j
@@ -7,7 +7,7 @@ function cleanup() {
             FILE.rmtree(dir);
     });
 
-    ["objj2objcskeletonTestFile.h", "objj2objcskeletonTestFile.m", "objj2objcskeletonTestFile.j"].forEach(function(file) {
+    ["objj2objcskeletonTestFile.h", "objj2objcskeletonTestFile.m", "objj2objcskeletonTestFile.j", "objjWarningTestFile.j", "objjErrorTestFile.j"].forEach(function(file) {
         if (FILE.isFile(file))
             FILE.remove(file);
     });
@@ -18,6 +18,14 @@ function cleanup() {
 }
 
 - (void)setUp
+{
+    cleanup();
+    FILE.write("objj2objcskeletonTestFile.j", "@import <Foundation/CPObject.j>\n@import <AppKit/AppKit.j>\n\n\n@implementation AppController : CPObject\n{\n    @outlet CPSplitView splitViewA;\n    @outlet CPSplitView splitViewB;\n    @outlet CPSplitView splitViewC;\n}\n\n@end");
+    FILE.write("objjWarningTestFile.j", "@import <Foundation/Foundation.j>@implementation AppController : CPObject{CPWindow theWindow;}@end");
+    FILE.write("objjErrorTestFile.j", "@implementation AppController : CPObject{}@end");
+}
+
+- (void)tearDown
 {
     cleanup();
 }
@@ -38,14 +46,25 @@ function cleanup() {
     status = OS.system(["objj", "ToolsTestApp/AppController.j"]);
     [self assert:0 equals:status message:"objj failed"];
 
+    status = OS.system(["objj", "--xml-output-format", "ToolsTestApp/AppController.j"]);
+    [self assert:0 equals:status message:"objj failed"];
+
+    var p = OS.popen(["objj", "--xml-output-format", "objjErrorTestFile.j"]);
+    [self assert:1 equals:p.wait() message:"objj failed"];
+    [self assert:"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<!DOCTYPE plist PUBLIC \"-//Apple//DTD PLIST 1.0//EN\" \"http://www.apple.com/DTDs/PropertyList-1.0.dtd\"><plist version = \"1.0\"><array><dict><key>line</key><integer>1</integer><key>path</key><string>/Users/Dogild/Project/cappuccino/objjErrorTestFile.j</string><key>message</key><string>Can&apos;t find superclass CPObject</string></dict></array></plist>\n" equals:p.stdout.read() message:"objj failed"];
+
+    var p = OS.popen(["objj", "--xml-output-format", "objjWarningTestFile.j"]);
+    [self assert:0 equals:p.wait() message:"objj failed"];
+    [self assert:"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<!DOCTYPE plist PUBLIC \"-//Apple//DTD PLIST 1.0//EN\" \"http://www.apple.com/DTDs/PropertyList-1.0.dtd\"><plist version = \"1.0\"><array><dict><key>line</key><integer>1</integer><key>path</key><string>/Users/Dogild/Project/cappuccino/objjWarningTestFile.j</string><key>message</key><string>\n@import &lt;Foundation/Foundation.j&gt;@implementation AppController : CPObject{CPWindow theWindow;}@end\
+\n                                                                                   ^\
+\nWARNING line 1 in file:/Users/Dogild/Project/cappuccino/objjWarningTestFile.j: Unknown type &apos;CPWindow&apos; for ivar &apos;theWindow&apos;</string></dict></array></plist>\n" equals:p.stdout.read() message:"objj failed"];
+
     status = OS.system(["objj", "-m", "ToolsTestApp/AppController.j", "ToolsTestApp/AppController.j"]);
     [self assert:0 equals:status message:"objj failed with several files"];
 
     status = OS.system(["objj", "-I", "ToolsTestApp/Frameworks", "ToolsTestApp/AppController.j"]);
     [self assert:0 equals:status message:"objj failed with options -I"];
 
-    FILE.write("objj2objcskeletonTestFile.j", "@import <Foundation/CPObject.j>\n@import <AppKit/AppKit.j>\n\n\n@implementation AppController : CPObject\n{\n    @outlet CPSplitView splitViewA;\n    @outlet CPSplitView splitViewB;\n    @outlet CPSplitView splitViewC;\n}\n\n@end");
-
     status = OS.system(["objj2objcskeleton", "objj2objcskeletonTestFile.j", "."]);
     [self assert:0 equals:status message:"objj2objcskeleton failed"];
 
@@ -60,9 +79,4 @@ function cleanup() {
     [self assert:contentMFile equals:expectedMResult message:@"File generated by objj2objcskeleton is wrong"];
 }
 
-- (void)tearDown
-{
-    cleanup();
-}
-
 @end