Ability to filter community tests from ultimate tests run

platform/testFramework/bootstrap/src/com/intellij/tests/ExternalClasspathClassLoader.java

@@ -60,6 +60,16 @@ public class ExternalClasspathClassLoader extends URLClassLoader {
     final String classPathFilePath = System.getProperty("classpath.file");
     return classPathFilePath != null ? parseUrls(classPathFilePath) : null;
   }
+  
+  public static String[] getExcludeRoots() {
+    try {
+      final String classPathFilePath = System.getProperty("exclude.tests.roots.file");
+      return classPathFilePath != null ? parseUrls(classPathFilePath) : null;
+    }
+    catch (Exception e) {
+      return new String[0];
+    }
+  }
 
   public static void install() {
     try {

platform/testFramework/src/com/intellij/TestAll.java

@@ -25,6 +25,7 @@
 package com.intellij;
 
 import com.intellij.openapi.diagnostic.Logger;
+import com.intellij.openapi.util.Comparing;
 import com.intellij.openapi.util.io.FileUtil;
 import com.intellij.openapi.vfs.VfsUtil;
 import com.intellij.testFramework.*;
@@ -43,7 +44,9 @@ import java.lang.reflect.Modifier;
 import java.net.URL;
 import java.net.URLClassLoader;
 import java.util.Arrays;
+import java.util.LinkedHashSet;
 import java.util.List;
+import java.util.Set;
 
 @SuppressWarnings({"HardCodedStringLiteral", "CallToPrintStackTrace", "UseOfSystemOutOrSystemErr"})
 public class TestAll implements Test {
@@ -356,8 +359,15 @@ public class TestAll implements Test {
       System.out.println("Collecting tests from roots specified by test.roots property: " + testRoots);
       return testRoots.split(";");
     }
-    final String[] roots = ExternalClasspathClassLoader.getRoots();
+    String[] roots = ExternalClasspathClassLoader.getRoots();
     if (roots != null) {
+      if (Comparing.equal(System.getProperty(TestCaseLoader.SKIP_COMMUNITY_TESTS), "true")) {
+        System.out.println("Skipping community tests");
+        Set<String> set = new LinkedHashSet<String>(Arrays.asList(roots));
+        set.removeAll(Arrays.asList(ExternalClasspathClassLoader.getExcludeRoots()));
+        roots = set.toArray(new String[set.size()]);
+      }
+      
       System.out.println("Collecting tests from roots specified by classpath.file property: " + Arrays.toString(roots));
       return roots;
     }

platform/testFramework/src/com/intellij/TestCaseLoader.java

@@ -47,6 +47,7 @@ public class TestCaseLoader {
   private static final String TARGET_TEST_PATTERNS = "idea.test.patterns";
 
   public static final String PERFORMANCE_TESTS_ONLY_FLAG = "idea.performance.tests";
+  public static final String SKIP_COMMUNITY_TESTS = "idea.skip.community.tests";
 
   private final List<Class> myClassList = new ArrayList<Class>();
   private Class myFirstTestClass;