VCS: + concurrent tasks test - if all tasks didn't return a result

(cherry picked from commit d7eb74a979394b9a1cd35a69ea1fd2693efeaf87)

platform/vcs-impl/src/com/intellij/openapi/vcs/changes/pending/DuringChangeListManagerUpdateTestScheme.java

@@ -117,36 +117,6 @@ public class DuringChangeListManagerUpdateTestScheme {
     }
   }
 
-  private static class TimeoutWaiter {
-    private Getter<Boolean> myControlled;
-    private final static long ourTimeout = 5000;
-    private final Object myLock;
-
-    private TimeoutWaiter() {
-      myLock = new Object();
-    }
-
-    public void setControlled(final Getter<Boolean> controlled) {
-      myControlled = controlled;
-    }
-
-    public void startTimeout() {
-      assert myControlled != null;
-
-      final long start = System.currentTimeMillis();
-      synchronized (myLock) {
-        while (((System.currentTimeMillis() - start) < ourTimeout) && (! Boolean.TRUE.equals(myControlled.get()))) {
-          try {
-            myLock.wait(300);
-          }
-          catch (InterruptedException e) {
-            //
-          }
-        }
-      }
-    }
-  }
-
   public static void checkFilesAreInList(final VirtualFile[] files, final String listName, final ChangeListManager manager) {
     System.out.println("Checking files for list: " + listName);
     assert manager.findChangeList(listName) != null;

platform/vcs-impl/src/com/intellij/openapi/vcs/changes/pending/TimeoutWaiter.java

@@ -0,0 +1,58 @@
+/*
+ * Copyright 2000-2010 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.intellij.openapi.vcs.changes.pending;
+
+import com.intellij.openapi.util.Getter;
+
+public class TimeoutWaiter {
+  private Getter<Boolean> myControlled;
+  private final static long ourTimeout = 5000;
+  private final Object myLock;
+  private boolean myExitedByTimeout;
+
+  public TimeoutWaiter() {
+    myLock = new Object();
+  }
+
+  public void setControlled(final Getter<Boolean> controlled) {
+    myControlled = controlled;
+  }
+
+  public void startTimeout() {
+    assert myControlled != null;
+
+    final long start = System.currentTimeMillis();
+    synchronized (myLock) {
+      while (true) {
+        try {
+          myLock.wait(300);
+        }
+        catch (InterruptedException e) {
+          //
+        }
+        if ((System.currentTimeMillis() - start) >= ourTimeout) {
+          myExitedByTimeout = true;
+          return;
+        }
+        if (Boolean.TRUE.equals(myControlled.get())) return;
+      }
+    }
+  }
+
+  public boolean isExitedByTimeout() {
+    return myExitedByTimeout;
+  }
+}