Fix settings for AppVeyor.

Author: clown

AppVeyor.yml

@@ -4,7 +4,7 @@ environment:
     PROJECT_BIN:    'bin\%PLATFORM%\%CONFIGURATION%\net45'
     TEST_TOOL:      '..\packages\OpenCover\4.7.922\tools\OpenCover.Console.exe'
     TEST_ARGS:      'test --no-restore --no-build --logger:Appveyor'
-    TEST_FILTERS:   '+[Cube*]* -[*]*.NativeMethods -[*]*.Properties.* -[*]*.Program -[*]*Control'
+    TEST_FILTERS:   '+[Cube*]* -[*]*.NativeMethods -[*]*.Properties.* -[*]*.Program -[*]*Form -[*]*Control'
     TEST_COVERAGE:  'CoverResults.xml'
     TEST_RESULTS:   'TestResults'
 clone_folder: 'C:\Cube\%PROJECT_NAME%'