### Eclipse Workspace Patch 1.0
#P org.eclipse.jdt.core.tests.performance
Index: src/org/eclipse/jdt/core/tests/performance/FullSourceWorkspaceModelTests.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core.tests.performance/src/org/eclipse/jdt/core/tests/performance/FullSourceWorkspaceModelTests.java,v
retrieving revision 1.21
diff -u -r1.21 FullSourceWorkspaceModelTests.java
--- src/org/eclipse/jdt/core/tests/performance/FullSourceWorkspaceModelTests.java	14 Mar 2007 16:59:20 -0000	1.21
+++ src/org/eclipse/jdt/core/tests/performance/FullSourceWorkspaceModelTests.java	16 Mar 2007 07:03:11 -0000
@@ -804,6 +804,55 @@
 	assertPerformance();
 }
 
+public void testCloseProjects() throws JavaModelException {
+	// store current settings
+	long oldSnapInterval = ENV.getWorkspace().getDescription().getSnapshotInterval();
+	boolean oldAutoBuildPolicy = ENV.isAutoBuilding();
+	
+	// prevent snapshots and autobuilds from disturbing our measures
+	ENV.getWorkspace().getDescription().setSnapshotInterval(100000);
+	ENV.getWorkspace().getDescription().setAutoBuilding(false);
+	
+	try {
+		int length=ALL_PROJECTS.length;
+		// Warm-up
+		for (int i=0; i<WARMUP_COUNT; i++) {
+			for (int j=0; j<length; j++) {
+				ENV.closeProject(ALL_PROJECTS[j].getPath());
+			}
+			for (int j=0; j<length; j++) {
+				ENV.openProject(ALL_PROJECTS[j].getPath());
+			}
+		}
+	
+		// Measures
+		for (int i=0; i<MEASURES_COUNT; i++) {
+			AbstractJavaModelTests.waitUntilIndexesReady();
+			// should not be autobuilding...
+			if (ENV.isAutoBuilding()) {
+				ENV.waitForAutoBuild();
+			}
+			runGc();
+			startMeasuring();
+			for (int j=0; j<length; j++) {
+				ENV.closeProject(ALL_PROJECTS[j].getPath());
+			}
+			stopMeasuring();
+			for (int j=0; j<length; j++) {
+				ENV.openProject(ALL_PROJECTS[j].getPath());
+			}
+		}
+		// Commit
+		commitMeasurements();
+		assertPerformance();
+	}
+	finally {
+		// restore previous settings
+		ENV.getWorkspace().getDescription().setSnapshotInterval(oldSnapInterval);
+		ENV.getWorkspace().getDescription().setAutoBuilding(oldAutoBuildPolicy);
+	}
+}
+
 protected void resetCounters() {
 	// do nothing
 }