diff options
Diffstat (limited to 'test-runner/src/android/test/suitebuilder/TestSuiteBuilder.java')
-rw-r--r-- | test-runner/src/android/test/suitebuilder/TestSuiteBuilder.java | 282 |
1 files changed, 282 insertions, 0 deletions
diff --git a/test-runner/src/android/test/suitebuilder/TestSuiteBuilder.java b/test-runner/src/android/test/suitebuilder/TestSuiteBuilder.java new file mode 100644 index 0000000..428905e --- /dev/null +++ b/test-runner/src/android/test/suitebuilder/TestSuiteBuilder.java @@ -0,0 +1,282 @@ +/* + * Copyright (C) 2008 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.suitebuilder; + +import android.content.Context; +import android.test.AndroidTestRunner; +import android.test.TestCaseUtil; +import android.util.Log; +import com.android.internal.util.Predicate; +import com.google.android.collect.Lists; +import static android.test.suitebuilder.TestGrouping.SORT_BY_FULLY_QUALIFIED_NAME; +import static android.test.suitebuilder.TestPredicates.REJECT_SUPPRESSED; +import static android.test.suitebuilder.TestPredicates.REJECT_PERFORMANCE; + +import junit.framework.Test; +import junit.framework.TestCase; +import junit.framework.TestSuite; + +import java.lang.reflect.InvocationTargetException; +import java.util.Enumeration; +import java.util.List; +import java.util.Set; +import java.util.HashSet; +import java.util.ArrayList; +import java.util.Collections; + +/** + * Build suites based on a combination of included packages, excluded packages, + * and predicates that must be satisfied. + */ +public class TestSuiteBuilder { + + private Context context; + private final TestGrouping testGrouping = new TestGrouping(SORT_BY_FULLY_QUALIFIED_NAME); + private final Set<Predicate<TestMethod>> predicates = new HashSet<Predicate<TestMethod>>(); + private List<TestCase> testCases; + private TestSuite rootSuite; + private TestSuite suiteForCurrentClass; + private String currentClassname; + private String suiteName; + + /** + * The given name is automatically prefixed with the package containing the tests to be run. + * If more than one package is specified, the first is used. + * + * @param clazz Use the class from your .apk. Use the class name for the test suite name. + * Use the class' classloader in order to load classes for testing. + * This is needed when running in the emulator. + */ + public TestSuiteBuilder(Class clazz) { + this(clazz.getName(), clazz.getClassLoader()); + } + + public TestSuiteBuilder(String name, ClassLoader classLoader) { + this.suiteName = name; + this.testGrouping.setClassLoader(classLoader); + this.testCases = Lists.newArrayList(); + addRequirements(REJECT_SUPPRESSED); + } + + /** @hide pending API Council approval */ + public TestSuiteBuilder addTestClassByName(String testClassName, String testMethodName, + Context context) { + + AndroidTestRunner atr = new AndroidTestRunner(); + atr.setContext(context); + atr.setTestClassName(testClassName, testMethodName); + + this.testCases.addAll(atr.getTestCases()); + return this; + } + + /** @hide pending API Council approval */ + public TestSuiteBuilder addTestSuite(TestSuite testSuite) { + for (TestCase testCase : (List<TestCase>) TestCaseUtil.getTests(testSuite, true)) { + this.testCases.add(testCase); + } + return this; + } + + /** + * Include all tests that satisfy the requirements in the given packages and all sub-packages, + * unless otherwise specified. + * + * @param packageNames Names of packages to add. + * @return The builder for method chaining. + */ + public TestSuiteBuilder includePackages(String... packageNames) { + testGrouping.addPackagesRecursive(packageNames); + return this; + } + + /** + * Exclude all tests in the given packages and all sub-packages, unless otherwise specified. + * + * @param packageNames Names of packages to remove. + * @return The builder for method chaining. + */ + public TestSuiteBuilder excludePackages(String... packageNames) { + testGrouping.removePackagesRecursive(packageNames); + return this; + } + + /** + * Exclude tests that fail to satisfy all of the given predicates. + * + * @param predicates Predicates to add to the list of requirements. + * @return The builder for method chaining. + */ + public TestSuiteBuilder addRequirements(List<Predicate<TestMethod>> predicates) { + this.predicates.addAll(predicates); + return this; + } + + /** + * Include all junit tests that satisfy the requirements in the calling class' package and all + * sub-packages. + * + * @return The builder for method chaining. + */ + public final TestSuiteBuilder includeAllPackagesUnderHere() { + StackTraceElement[] stackTraceElements = Thread.currentThread().getStackTrace(); + + String callingClassName = null; + String thisClassName = TestSuiteBuilder.class.getName(); + + // We want to get the package of this method's calling class. This method's calling class + // should be one level below this class in the stack trace. + for (int i = 0; i < stackTraceElements.length; i++) { + StackTraceElement element = stackTraceElements[i]; + if (thisClassName.equals(element.getClassName()) + && "includeAllPackagesUnderHere".equals(element.getMethodName())) { + // We've found this class in the call stack. The calling class must be the + // next class in the stack. + callingClassName = stackTraceElements[i + 1].getClassName(); + break; + } + } + + String packageName = parsePackageNameFromClassName(callingClassName); + return includePackages(packageName); + } + + /** + * Override the default name for the suite being built. This should generally be called if you + * call {@link #addRequirements(com.android.internal.util.Predicate[])} to make it clear which + * tests will be included. The name you specify is automatically prefixed with the package + * containing the tests to be run. If more than one package is specified, the first is used. + * + * @param newSuiteName Prefix of name to give the suite being built. + * @return The builder for method chaining. + */ + public TestSuiteBuilder named(String newSuiteName) { + suiteName = newSuiteName; + return this; + } + + /** + * Call this method once you've configured your builder as desired. + * + * @return The suite containing the requested tests. + */ + public final TestSuite build() { + rootSuite = new TestSuite(getSuiteName()); + + // Keep track of current class so we know when to create a new sub-suite. + currentClassname = null; + try { + for (TestMethod test : testGrouping.getTests()) { + if (satisfiesAllPredicates(test)) { + addTest(test); + } + } + if (testCases.size() > 0) { + for (TestCase testCase : testCases) { + if (satisfiesAllPredicates(new TestMethod(testCase))) { + addTest(testCase); + } + } + } + } catch (Exception exception) { + Log.i("TestSuiteBuilder", "Failed to create test.", exception); + TestSuite suite = new TestSuite(getSuiteName()); + suite.addTest(new FailedToCreateTests(exception)); + return suite; + } + return rootSuite; + } + + /** + * Subclasses use this method to determine the name of the suite. + * + * @return The package and suite name combined. + */ + protected String getSuiteName() { + return suiteName; + } + + /** + * Exclude tests that fail to satisfy all of the given predicates. If you call this method, you + * probably also want to call {@link #named(String)} to override the default suite name. + * + * @param predicates Predicates to add to the list of requirements. + * @return The builder for method chaining. + */ + public final TestSuiteBuilder addRequirements(Predicate<TestMethod>... predicates) { + ArrayList<Predicate<TestMethod>> list = new ArrayList<Predicate<TestMethod>>(); + Collections.addAll(list, predicates); + return addRequirements(list); + } + + /** + * A special {@link junit.framework.TestCase} used to indicate a failure during the build() + * step. + */ + public static class FailedToCreateTests extends TestCase { + private final Exception exception; + + public FailedToCreateTests(Exception exception) { + super("testSuiteConstructionFailed"); + this.exception = exception; + } + + public void testSuiteConstructionFailed() { + throw new RuntimeException("Exception during suite construction", exception); + } + } + + /** + * @return the test package that represents the packages that were included for our test suite. + * + * {@hide} Not needed for 1.0 SDK. + */ + protected TestGrouping getTestGrouping() { + return testGrouping; + } + + private boolean satisfiesAllPredicates(TestMethod test) { + for (Predicate<TestMethod> predicate : predicates) { + if (!predicate.apply(test)) { + return false; + } + } + return true; + } + + private void addTest(TestMethod testMethod) throws Exception { + addSuiteIfNecessary(testMethod.getEnclosingClassname()); + suiteForCurrentClass.addTest(testMethod.createTest()); + } + + private void addTest(Test test) { + addSuiteIfNecessary(test.getClass().getName()); + suiteForCurrentClass.addTest(test); + } + + private void addSuiteIfNecessary(String parentClassname) { + if (!parentClassname.equals(currentClassname)) { + currentClassname = parentClassname; + suiteForCurrentClass = new TestSuite(parentClassname); + rootSuite.addTest(suiteForCurrentClass); + } + } + + private static String parsePackageNameFromClassName(String className) { + return className.substring(0, className.lastIndexOf('.')); + } +} |