Android example source code file (AndroidTestRunnerTest.java)

This example Android source code file (AndroidTestRunnerTest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" ^TM.

Java - Android tags/keywords

android, androidtestcase, androidtestrunner, assertionfailederror, classloader, collect, collections, exception, google, list, override, runtimeexception, smalltest, string, stubcontext, test, testcase, testlistenerstub, testsuite, util

The AndroidTestRunnerTest.java Android example source code

/*
 * 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;

import android.test.mock.MockContext;
import android.test.suitebuilder.annotation.SmallTest;

import com.google.android.collect.Lists;

import junit.framework.TestCase;
import junit.framework.AssertionFailedError;
import junit.framework.Test;
import junit.framework.TestSuite;
import junit.framework.TestListener;

import java.util.List;
import java.util.Arrays;

/**
 * Unit tests for {@link AndroidTestRunner}
 */
@SmallTest
public class AndroidTestRunnerTest extends TestCase {
    private AndroidTestRunner mAndroidTestRunner;
    private StubContext mStubContext;

    @Override
    protected void setUp() throws Exception {
        super.setUp();
        mStubContext = new StubContext(getClass().getClassLoader());

        mAndroidTestRunner = new AndroidTestRunner();
        mAndroidTestRunner.setContext(mStubContext);
    }

    public void testLoadNoTestCases() throws Exception {
        mAndroidTestRunner.setTestClassName(TestSuite.class.getName(), null);

        List<TestCase> testCases = mAndroidTestRunner.getTestCases();
        assertNotNull(testCases);
        assertEquals(1, testCases.size());
        assertEquals("warning", testCases.get(0).getName());
        assertEquals(TestSuite.class.getSimpleName(), mAndroidTestRunner.getTestClassName());
    }

    public void testSetTestSuiteWithOneTestCase() throws Exception {
        mAndroidTestRunner.setTestClassName(OneTestTestCase.class.getName(), null);

        List<TestCase> testCases = mAndroidTestRunner.getTestCases();
        assertNotNull(testCases);
        assertEquals(1, testCases.size());
        assertEquals("testOne", testCases.get(0).getName());
        assertEquals(OneTestTestCase.class.getSimpleName(), mAndroidTestRunner.getTestClassName());
    }

    public void testRunTest() throws Exception {
        mAndroidTestRunner.setTestClassName(OneTestTestCase.class.getName(), null);

        TestListenerStub testListenerStub = new TestListenerStub();
        mAndroidTestRunner.addTestListener(testListenerStub);

        mAndroidTestRunner.runTest();

        assertTrue(testListenerStub.saw("testOne"));
    }

    public void testRunTestWithAndroidTestCase() throws Exception {
        mAndroidTestRunner.setTestClassName(
                OneAndroidTestTestCase.class.getName(), "testOneAndroid");

        TestListenerStub testListenerStub = new TestListenerStub();
        mAndroidTestRunner.addTestListener(testListenerStub);

        assertNull(((AndroidTestCase) mAndroidTestRunner.getTestCases().get(0)).getContext());

        mAndroidTestRunner.runTest();

        assertTrue(testListenerStub.saw("testOneAndroid"));
        assertSame(mStubContext,
                ((AndroidTestCase) mAndroidTestRunner.getTestCases().get(0)).getContext());
    }

    public void testRunTestWithAndroidTestCaseInSuite() throws Exception {
        mAndroidTestRunner.setTestClassName(OneAndroidTestTestCase.class.getName(), null);

        TestListenerStub testListenerStub = new TestListenerStub();
        mAndroidTestRunner.addTestListener(testListenerStub);

        mAndroidTestRunner.runTest();

        assertTrue(testListenerStub.saw("testOneAndroid"));

        List<TestCase> testCases = mAndroidTestRunner.getTestCases();
        for (TestCase testCase : testCases) {
            assertSame(mStubContext, ((AndroidTestCase) testCase).getContext());
        }
    }

    public void testRunTestWithAndroidTestCaseInNestedSuite() throws Exception {
        mAndroidTestRunner.setTestClassName(AndroidTestCaseTestSuite.class.getName(), null);

        TestListenerStub testListenerStub = new TestListenerStub();
        mAndroidTestRunner.addTestListener(testListenerStub);

        mAndroidTestRunner.runTest();

        assertTrue(testListenerStub.saw("testOneAndroid"));

        List<TestCase> testCases = mAndroidTestRunner.getTestCases();
        for (TestCase testCase : testCases) {
            assertSame(mStubContext, ((AndroidTestCase) testCase).getContext());
        }
    }

    public void testRunTestWithNullListener() throws Exception {
        mAndroidTestRunner.setTestClassName(OneTestTestCase.class.getName(), null);

        mAndroidTestRunner.addTestListener(null);
        try {
            mAndroidTestRunner.runTest();
        } catch (NullPointerException e) {
            fail("Should not add a null TestListener");
        }
    }

    public void testSetTestClassWithTestSuiteProvider() throws Exception {
        mAndroidTestRunner.setTestClassName(SampleTestSuiteProvider.class.getName(), null);
        List<TestCase> testCases = mAndroidTestRunner.getTestCases();
        List<String> testNames = Lists.newArrayList();
        for (TestCase testCase : testCases) {
            testNames.add(testCase.getName());
        }

        // Use the test suite provided by the interface method rather than the static suite method.
        assertEquals(Arrays.asList("testOne"), testNames);
    }

    public void testSetTestClassWithTestSuite() throws Exception {
        mAndroidTestRunner.setTestClassName(SampleTestSuite.class.getName(), null);
        List<TestCase> testCases = mAndroidTestRunner.getTestCases();
        List<String> testNames = Lists.newArrayList();
        for (TestCase testCase : testCases) {
            testNames.add(testCase.getName());
        }
        assertEquals(Arrays.asList("testOne", "testOne", "testTwo"), testNames);
    }

    public void testRunSingleTestMethod() throws Exception {
        String testMethodName = "testTwo";
        mAndroidTestRunner.setTestClassName(TwoTestTestCase.class.getName(), testMethodName);
        List<TestCase> testCases = mAndroidTestRunner.getTestCases();
        List<String> testNames = Lists.newArrayList();
        for (TestCase testCase : testCases) {
            testNames.add(testCase.getName());
        }
        assertEquals(Arrays.asList(testMethodName), testNames);
    }

    public void testSetTestClassInvalidClass() throws Exception {
        try {
            mAndroidTestRunner.setTestClassName("class.that.does.not.exist", null);
            fail("expected exception not thrown");
        } catch (RuntimeException e) {
            // expected
        }
    }
    
    public void testRunSkipExecution() throws Exception {
        String testMethodName = "testFail";
        mAndroidTestRunner.setTestClassName(
                OnePassOneErrorOneFailTestCase.class.getName(), testMethodName);
        
        TestListenerStub testListenerStub = new TestListenerStub();
        mAndroidTestRunner.addTestListener(testListenerStub);
        
        // running the failing test should pass - ie as if its not run
        mAndroidTestRunner.runTest();
        
        assertTrue(testListenerStub.saw("testFail"));
    }

    public static class SampleTestSuiteProvider implements TestSuiteProvider {

        public TestSuite getTestSuite() {
            TestSuite testSuite = new TestSuite();
            testSuite.addTestSuite(OneTestTestCase.class);
            return testSuite;
        }

        public static Test suite() {
            return SampleTestSuite.suite();
        }
    }

    public static class SampleTestSuite {
        public static TestSuite suite() {
            TestSuite testSuite = new TestSuite();
            testSuite.addTestSuite(OneTestTestCase.class);
            testSuite.addTestSuite(TwoTestTestCase.class);
            return testSuite;
        }
    }

    public static class AndroidTestCaseTestSuite {
        public static TestSuite suite() {
            TestSuite testSuite = new TestSuite();
            testSuite.addTestSuite(OneAndroidTestTestCase.class);
            return testSuite;
        }
    }

    public static class OneAndroidTestTestCase extends AndroidTestCase {
        public void testOneAndroid() throws Exception {
        }
    }

    public static class OneTestTestCase extends TestCase {
        public void testOne() throws Exception {
        }
    }

    public static class TwoTestTestCase extends TestCase {
        public void testOne() throws Exception {
        }

        public void testTwo() throws Exception {
        }
    }

    public static class OnePassOneErrorOneFailTestCase extends TestCase {
        public void testPass() throws Exception {
        }

        public void testError() throws Exception {
            throw new Exception();
        }

        public void testFail() throws Exception {
            fail();
        }
    }

    private static class TestListenerStub implements TestListener {
        List<String> testNames = Lists.newArrayList();

        public void addError(Test test, Throwable t) {
        }

        public void addFailure(Test test, AssertionFailedError t) {
        }

        public void endTest(Test test) {
        }

        public void startTest(Test test) {
            if (test instanceof TestCase) {
                testNames.add(((TestCase) test).getName());
            } else if (test instanceof TestSuite) {
                testNames.add(((TestSuite) test).getName());
            }
        }

        public boolean saw(String testName) {
            return testNames.contains(testName);
        }
    }

    private static class StubContext extends MockContext {
        private ClassLoader mClassLoader;

        public StubContext(ClassLoader classLoader) {
            this.mClassLoader = classLoader;
        }

        @Override
        public ClassLoader getClassLoader() {
            return mClassLoader;
        }
    }
}