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/*
* Copyright (C) 2007 The Android Open Source Project
*
* 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 android.test;
import android.os.Bundle;
import android.os.PerformanceCollector;
import android.os.PerformanceCollector.PerformanceResultsWriter;
import java.lang.reflect.Method;
/**
* Provides hooks and wrappers to automatically and manually collect and report
* performance data in tests.
*
* {@hide} Pending approval for public API.
*/
public class PerformanceTestBase extends InstrumentationTestCase implements PerformanceTestCase {
private static PerformanceCollector sPerfCollector = new PerformanceCollector();
private static int sNumTestMethods = 0;
private static int sNumTestMethodsLeft = 0;
// Count number of tests, used to emulate beforeClass and afterClass from JUnit4
public PerformanceTestBase() {
if (sNumTestMethods == 0) {
Method methods[] = getClass().getMethods();
for (Method m : methods) {
if (m.getName().startsWith("test")) {
sNumTestMethods ++;
sNumTestMethodsLeft ++;
}
}
}
}
@Override
protected void setUp() throws Exception {
super.setUp();
// @beforeClass
// Will skew timing measured by TestRunner, but not by PerformanceCollector
if (sNumTestMethodsLeft == sNumTestMethods) {
sPerfCollector.beginSnapshot(this.getClass().getName());
}
}
@Override
protected void tearDown() throws Exception {
// @afterClass
// Will skew timing measured by TestRunner, but not by PerformanceCollector
if (--sNumTestMethodsLeft == 0) {
sPerfCollector.endSnapshot();
}
super.tearDown();
}
public void setPerformanceResultsWriter(PerformanceResultsWriter writer) {
sPerfCollector.setPerformanceResultsWriter(writer);
}
/**
* @see PerformanceCollector#beginSnapshot(String)
*/
protected void beginSnapshot(String label) {
sPerfCollector.beginSnapshot(label);
}
/**
* @see PerformanceCollector#endSnapshot()
*/
protected Bundle endSnapshot() {
return sPerfCollector.endSnapshot();
}
/**
* @see PerformanceCollector#startTiming(String)
*/
protected void startTiming(String label) {
sPerfCollector.startTiming(label);
}
/**
* @see PerformanceCollector#addIteration(String)
*/
protected Bundle addIteration(String label) {
return sPerfCollector.addIteration(label);
}
/**
* @see PerformanceCollector#stopTiming(String)
*/
protected Bundle stopTiming(String label) {
return sPerfCollector.stopTiming(label);
}
public int startPerformance(PerformanceTestCase.Intermediates intermediates) {
return 0;
}
public boolean isPerformanceOnly() {
return true;
}
}
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