1 files changed, 171 insertions, 0 deletions
diff --git a/test-runner/android/test/TestCaseUtil.java b/test-runner/android/test/TestCaseUtil.java
new file mode 100644
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+++ b/test-runner/android/test/TestCaseUtil.java
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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 com.google.android.collect.Lists;
+
+import junit.framework.Test;
+import junit.framework.TestCase;
+import junit.framework.TestSuite;
+import junit.runner.BaseTestRunner;
+
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.lang.reflect.Modifier;
+import java.util.Enumeration;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+/**
+ * @hide - This is part of a framework that is under development and should not be used for
+ * active development.
+ */
+public class TestCaseUtil {
+
+    private TestCaseUtil() {
+    }
+
+    @SuppressWarnings("unchecked")
+    public static List<String> getTestCaseNames(Test test, boolean flatten) {
+        List<Test> tests = (List<Test>) getTests(test, flatten);
+        List<String> testCaseNames = Lists.newArrayList();
+        for (Test aTest : tests) {
+            testCaseNames.add(getTestName(aTest));
+        }
+        return testCaseNames;
+    }
+
+    public static List<? extends Test> getTests(Test test, boolean flatten) {
+        return getTests(test, flatten, new HashSet<Class<?>>());
+    }
+
+    private static List<? extends Test> getTests(Test test, boolean flatten,
+            Set<Class<?>> seen) {
+        List<Test> testCases = Lists.newArrayList();
+        if (test != null) {
+
+            Test workingTest = null;
+            /*
+             * If we want to run a single TestCase method only, we must not
+             * invoke the suite() method, because we will run all test methods
+             * of the class then.
+             */
+            if (test instanceof TestCase &&
+                    ((TestCase)test).getName() == null) {
+                workingTest = invokeSuiteMethodIfPossible(test.getClass(), 
+                        seen);
+            }
+            if (workingTest == null) {
+                workingTest = test;
+            }
+
+            if (workingTest instanceof TestSuite) {
+                TestSuite testSuite = (TestSuite) workingTest;
+                Enumeration enumeration = testSuite.tests();
+                while (enumeration.hasMoreElements()) {
+                    Test childTest = (Test) enumeration.nextElement();
+                    if (flatten) {
+                        testCases.addAll(getTests(childTest, flatten, seen));
+                    } else {
+                        testCases.add(childTest);
+                    }
+                }
+            } else {
+                testCases.add(workingTest);
+            }
+        }
+        return testCases;
+    }
+
+    private static Test invokeSuiteMethodIfPossible(Class testClass,
+            Set<Class<?>> seen) {
+        try {
+            Method suiteMethod = testClass.getMethod(
+                    BaseTestRunner.SUITE_METHODNAME, new Class[0]);
+            /*
+             * Additional check necessary: If a TestCase contains a suite()
+             * method that returns a TestSuite including the TestCase itself,
+             * we need to stop the recursion. We use a set of classes to
+             * remember which classes' suite() methods were already invoked.
+             */
+            if (Modifier.isStatic(suiteMethod.getModifiers())
+                    && !seen.contains(testClass)) {
+                seen.add(testClass);
+                try {
+                    return (Test) suiteMethod.invoke(null, (Object[]) null);
+                } catch (InvocationTargetException e) {
+                    // do nothing
+                } catch (IllegalAccessException e) {
+                    // do nothing
+                }
+            }
+        } catch (NoSuchMethodException e) {
+            // do nothing
+        }
+        return null;
+    }
+
+    public static String getTestName(Test test) {
+        if (test instanceof TestCase) {
+            TestCase testCase = (TestCase) test;
+            return testCase.getName();
+        } else if (test instanceof TestSuite) {
+            TestSuite testSuite = (TestSuite) test;
+            String name = testSuite.getName();
+            if (name != null) {
+                int index = name.lastIndexOf(".");
+                if (index > -1) {
+                    return name.substring(index + 1);
+                } else {
+                    return name;
+                }
+            }
+        }
+        return "";
+    }
+
+    public static Test getTestAtIndex(TestSuite testSuite, int position) {
+        int index = 0;
+        Enumeration enumeration = testSuite.tests();
+        while (enumeration.hasMoreElements()) {
+            Test test = (Test) enumeration.nextElement();
+            if (index == position) {
+                return test;
+            }
+            index++;
+        }
+        return null;
+    }
+
+    public static TestSuite createTestSuite(Class<? extends Test> testClass)
+            throws InstantiationException, IllegalAccessException {
+
+        Test test = invokeSuiteMethodIfPossible(testClass, 
+                new HashSet<Class<?>>());
+        if (test == null) {
+            return new TestSuite(testClass);
+
+        } else if (TestCase.class.isAssignableFrom(test.getClass())) {
+            TestSuite testSuite = new TestSuite(test.getClass().getName());
+            testSuite.addTest(test);
+            return testSuite;
+        }
+
+        return (TestSuite) test;
+    }
+}