1 /*
2  * Copyright (C) 2007 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package android.test;
18 
19 import android.test.suitebuilder.annotation.MediumTest;
20 import android.test.suitebuilder.annotation.SmallTest;
21 import com.android.internal.util.Predicate;
22 
23 import android.app.Activity;
24 import android.app.Instrumentation;
25 import android.os.Bundle;
26 import android.os.Debug;
27 import android.os.Looper;
28 import android.test.suitebuilder.TestMethod;
29 import android.test.suitebuilder.TestPredicates;
30 import android.test.suitebuilder.TestSuiteBuilder;
31 import android.test.suitebuilder.annotation.LargeTest;
32 import android.util.Log;
33 
34 import java.io.ByteArrayOutputStream;
35 import java.io.File;
36 import java.io.PrintStream;
37 import java.lang.annotation.Annotation;
38 import java.lang.reflect.InvocationTargetException;
39 import java.lang.reflect.Method;
40 import java.util.ArrayList;
41 import java.util.List;
42 
43 import junit.framework.AssertionFailedError;
44 import junit.framework.Test;
45 import junit.framework.TestCase;
46 import junit.framework.TestListener;
47 import junit.framework.TestResult;
48 import junit.framework.TestSuite;
49 import junit.runner.BaseTestRunner;
50 import junit.textui.ResultPrinter;
51 
52 import static android.test.suitebuilder.TestPredicates.hasAnnotation;
53 
54 /**
55  * An {@link Instrumentation} that runs various types of {@link junit.framework.TestCase}s against
56  * an Android package (application).
57  *
58  * <div class="special reference">
59  * <h3>Developer Guides</h3>
60  * <p>For more information about application testing, read the
61  * <a href="{@docRoot}guide/topics/testing/index.html">Testing</a> developer guide.</p>
62  * </div>
63  *
64  * <h3>Typical Usage</h3>
65  * <ol>
66  * <li>Write {@link junit.framework.TestCase}s that perform unit, functional, or performance tests
67  * against the classes in your package.  Typically these are subclassed from:
68  *   <ul><li>{@link android.test.ActivityInstrumentationTestCase2}</li>
69  *   <li>{@link android.test.ActivityUnitTestCase}</li>
70  *   <li>{@link android.test.AndroidTestCase}</li>
71  *   <li>{@link android.test.ApplicationTestCase}</li>
72  *   <li>{@link android.test.InstrumentationTestCase}</li>
73  *   <li>{@link android.test.ProviderTestCase}</li>
74  *   <li>{@link android.test.ServiceTestCase}</li>
75  *   <li>{@link android.test.SingleLaunchActivityTestCase}</li></ul>
76  * <li>Set the <code>android:targetPackage</code> attribute of the <code>&lt;instrumentation&gt;</code>
77  * element in the test package's manifest. You should set the attribute value
78  * to the package name of the target application under test.
79  * <li>Run the instrumentation using "adb shell am instrument -w",
80  * with no optional arguments, to run all tests (except performance tests).
81  * <li>Run the instrumentation using "adb shell am instrument -w",
82  * with the argument '-e func true' to run all functional tests. These are tests that derive from
83  * {@link android.test.InstrumentationTestCase}.
84  * <li>Run the instrumentation using "adb shell am instrument -w",
85  * with the argument '-e unit true' to run all unit tests. These are tests that <i>do not</i>derive
86  * from {@link android.test.InstrumentationTestCase} (and are not performance tests).
87  * <li>Run the instrumentation using "adb shell am instrument -w",
88  * with the argument '-e class' set to run an individual {@link junit.framework.TestCase}.
89  * </ol>
90  * <p/>
91  * <b>Running all tests:</b> adb shell am instrument -w
92  * com.android.foo/android.test.InstrumentationTestRunner
93  * <p/>
94  * <b>Running all small tests:</b> adb shell am instrument -w
95  * -e size small
96  * com.android.foo/android.test.InstrumentationTestRunner
97  * <p/>
98  * <b>Running all medium tests:</b> adb shell am instrument -w
99  * -e size medium
100  * com.android.foo/android.test.InstrumentationTestRunner
101  * <p/>
102  * <b>Running all large tests:</b> adb shell am instrument -w
103  * -e size large
104  * com.android.foo/android.test.InstrumentationTestRunner
105  * <p/>
106  * <b>Filter test run to tests with given annotation:</b> adb shell am instrument -w
107  * -e annotation com.android.foo.MyAnnotation
108  * com.android.foo/android.test.InstrumentationTestRunner
109  * <p/>
110  * If used with other options, the resulting test run will contain the union of the two options.
111  * e.g. "-e size large -e annotation com.android.foo.MyAnnotation" will run only tests with both
112  * the {@link LargeTest} and "com.android.foo.MyAnnotation" annotations.
113  * <p/>
114  * <b>Filter test run to tests <i>without</i> given annotation:</b> adb shell am instrument -w
115  * -e notAnnotation com.android.foo.MyAnnotation
116  * com.android.foo/android.test.InstrumentationTestRunner
117  * <p/>
118  * <b>Running a single testcase:</b> adb shell am instrument -w
119  * -e class com.android.foo.FooTest
120  * com.android.foo/android.test.InstrumentationTestRunner
121  * <p/>
122  * <b>Running a single test:</b> adb shell am instrument -w
123  * -e class com.android.foo.FooTest#testFoo
124  * com.android.foo/android.test.InstrumentationTestRunner
125  * <p/>
126  * <b>Running multiple tests:</b> adb shell am instrument -w
127  * -e class com.android.foo.FooTest,com.android.foo.TooTest
128  * com.android.foo/android.test.InstrumentationTestRunner
129  * <p/>
130  * <b>Running all tests in a java package:</b> adb shell am instrument -w
131  * -e package com.android.foo.subpkg
132  *  com.android.foo/android.test.InstrumentationTestRunner
133  * <p/>
134  * <b>Including performance tests:</b> adb shell am instrument -w
135  * -e perf true
136  * com.android.foo/android.test.InstrumentationTestRunner
137  * <p/>
138  * <b>To debug your tests, set a break point in your code and pass:</b>
139  * -e debug true
140  * <p/>
141  * <b>To run in 'log only' mode</b>
142  * -e log true
143  * This option will load and iterate through all test classes and methods, but will bypass actual
144  * test execution. Useful for quickly obtaining info on the tests to be executed by an
145  * instrumentation command.
146  * <p/>
147  * <b>To generate EMMA code coverage:</b>
148  * -e coverage true
149  * Note: this requires an emma instrumented build. By default, the code coverage results file
150  * will be saved in a /data/<app>/coverage.ec file, unless overridden by coverageFile flag (see
151  * below)
152  * <p/>
153  * <b> To specify EMMA code coverage results file path:</b>
154  * -e coverageFile /sdcard/myFile.ec
155  * <br/>
156  * in addition to the other arguments.
157  * @deprecated Use
158  * <a href="{@docRoot}reference/android/support/test/runner/AndroidJUnitRunner.html">
159  * AndroidJUnitRunner</a> instead. New tests should be written using the
160  * <a href="{@docRoot}tools/testing-support-library/index.html">Android Testing Support Library</a>.
161  */
162 
163 /* (not JavaDoc)
164  * Although not necessary in most case, another way to use this class is to extend it and have the
165  * derived class return the desired test suite from the {@link #getTestSuite()} method. The test
166  * suite returned from this method will be used if no target class is defined in the meta-data or
167  * command line argument parameters. If a derived class is used it needs to be added as an
168  * instrumentation to the AndroidManifest.xml and the command to run it would look like:
169  * <p/>
170  * adb shell am instrument -w com.android.foo/<i>com.android.FooInstrumentationTestRunner</i>
171  * <p/>
172  * Where <i>com.android.FooInstrumentationTestRunner</i> is the derived class.
173  *
174  * This model is used by many existing app tests, but can probably be deprecated.
175  */
176 @Deprecated
177 public class InstrumentationTestRunner extends Instrumentation implements TestSuiteProvider {
178 
179     /** @hide */
180     static final String ARGUMENT_TEST_CLASS = "class";
181     /** @hide */
182     private static final String ARGUMENT_TEST_PACKAGE = "package";
183     /** @hide */
184     private static final String ARGUMENT_TEST_SIZE_PREDICATE = "size";
185     /** @hide */
186     static final String ARGUMENT_DELAY_MSEC = "delay_msec";
187 
188     private static final String SMALL_SUITE = "small";
189     private static final String MEDIUM_SUITE = "medium";
190     private static final String LARGE_SUITE = "large";
191 
192     private static final String ARGUMENT_LOG_ONLY = "log";
193     /** @hide */
194     static final String ARGUMENT_ANNOTATION = "annotation";
195     /** @hide */
196     static final String ARGUMENT_NOT_ANNOTATION = "notAnnotation";
197 
198     private static final Predicate<TestMethod> SELECT_SMALL = hasAnnotation(SmallTest.class);
199 
200     private static final Predicate<TestMethod> SELECT_MEDIUM = hasAnnotation(MediumTest.class);
201 
202     private static final Predicate<TestMethod> SELECT_LARGE = hasAnnotation(LargeTest.class);
203 
204     /**
205      * This constant defines the maximum allowed runtime (in ms) for a test included in the "small"
206      * suite. It is used to make an educated guess at what suite an unlabeled test belongs.
207      */
208     private static final float SMALL_SUITE_MAX_RUNTIME = 100;
209 
210     /**
211      * This constant defines the maximum allowed runtime (in ms) for a test included in the
212      * "medium" suite. It is used to make an educated guess at what suite an unlabeled test belongs.
213      */
214     private static final float MEDIUM_SUITE_MAX_RUNTIME = 1000;
215 
216     /*
217      * The following keys are used in the status bundle to provide structured reports to
218      * an IInstrumentationWatcher.
219      */
220 
221     /**
222      * This value, if stored with key {@link android.app.Instrumentation#REPORT_KEY_IDENTIFIER},
223      * identifies InstrumentationTestRunner as the source of the report.  This is sent with all
224      * status messages.
225      */
226     public static final String REPORT_VALUE_ID = "InstrumentationTestRunner";
227     /**
228      * If included in the status or final bundle sent to an IInstrumentationWatcher, this key
229      * identifies the total number of tests that are being run.  This is sent with all status
230      * messages.
231      */
232     public static final String REPORT_KEY_NUM_TOTAL = "numtests";
233     /**
234      * If included in the status or final bundle sent to an IInstrumentationWatcher, this key
235      * identifies the sequence number of the current test.  This is sent with any status message
236      * describing a specific test being started or completed.
237      */
238     public static final String REPORT_KEY_NUM_CURRENT = "current";
239     /**
240      * If included in the status or final bundle sent to an IInstrumentationWatcher, this key
241      * identifies the name of the current test class.  This is sent with any status message
242      * describing a specific test being started or completed.
243      */
244     public static final String REPORT_KEY_NAME_CLASS = "class";
245     /**
246      * If included in the status or final bundle sent to an IInstrumentationWatcher, this key
247      * identifies the name of the current test.  This is sent with any status message
248      * describing a specific test being started or completed.
249      */
250     public static final String REPORT_KEY_NAME_TEST = "test";
251     /**
252      * If included in the status or final bundle sent to an IInstrumentationWatcher, this key
253      * reports the run time in seconds of the current test.
254      */
255     private static final String REPORT_KEY_RUN_TIME = "runtime";
256     /**
257      * If included in the status or final bundle sent to an IInstrumentationWatcher, this key
258      * reports the number of total iterations of the current test.
259      */
260     private static final String REPORT_KEY_NUM_ITERATIONS = "numiterations";
261     /**
262      * If included in the status or final bundle sent to an IInstrumentationWatcher, this key
263      * reports the guessed suite assignment for the current test.
264      */
265     private static final String REPORT_KEY_SUITE_ASSIGNMENT = "suiteassignment";
266     /**
267      * If included in the status or final bundle sent to an IInstrumentationWatcher, this key
268      * identifies the path to the generated code coverage file.
269      */
270     private static final String REPORT_KEY_COVERAGE_PATH = "coverageFilePath";
271 
272     /**
273      * The test is starting.
274      */
275     public static final int REPORT_VALUE_RESULT_START = 1;
276     /**
277      * The test completed successfully.
278      */
279     public static final int REPORT_VALUE_RESULT_OK = 0;
280     /**
281      * The test completed with an error.
282      */
283     public static final int REPORT_VALUE_RESULT_ERROR = -1;
284     /**
285      * The test completed with a failure.
286      */
287     public static final int REPORT_VALUE_RESULT_FAILURE = -2;
288     /**
289      * If included in the status bundle sent to an IInstrumentationWatcher, this key
290      * identifies a stack trace describing an error or failure.  This is sent with any status
291      * message describing a specific test being completed.
292      */
293     public static final String REPORT_KEY_STACK = "stack";
294 
295     // Default file name for code coverage
296     private static final String DEFAULT_COVERAGE_FILE_NAME = "coverage.ec";
297 
298     private static final String LOG_TAG = "InstrumentationTestRunner";
299 
300     private final Bundle mResults = new Bundle();
301     private Bundle mArguments;
302     private AndroidTestRunner mTestRunner;
303     private boolean mDebug;
304     private boolean mJustCount;
305     private boolean mSuiteAssignmentMode;
306     private int mTestCount;
307     private String mPackageOfTests;
308     private boolean mCoverage;
309     private String mCoverageFilePath;
310     private int mDelayMsec;
311 
312     @Override
onCreate(Bundle arguments)313     public void onCreate(Bundle arguments) {
314         super.onCreate(arguments);
315         mArguments = arguments;
316 
317         // Apk paths used to search for test classes when using TestSuiteBuilders.
318         String[] apkPaths =
319                 {getTargetContext().getPackageCodePath(), getContext().getPackageCodePath()};
320         ClassPathPackageInfoSource.setApkPaths(apkPaths);
321 
322         Predicate<TestMethod> testSizePredicate = null;
323         Predicate<TestMethod> testAnnotationPredicate = null;
324         Predicate<TestMethod> testNotAnnotationPredicate = null;
325         String testClassesArg = null;
326         boolean logOnly = false;
327 
328         if (arguments != null) {
329             // Test class name passed as an argument should override any meta-data declaration.
330             testClassesArg = arguments.getString(ARGUMENT_TEST_CLASS);
331             mDebug = getBooleanArgument(arguments, "debug");
332             mJustCount = getBooleanArgument(arguments, "count");
333             mSuiteAssignmentMode = getBooleanArgument(arguments, "suiteAssignment");
334             mPackageOfTests = arguments.getString(ARGUMENT_TEST_PACKAGE);
335             testSizePredicate = getSizePredicateFromArg(
336                     arguments.getString(ARGUMENT_TEST_SIZE_PREDICATE));
337             testAnnotationPredicate = getAnnotationPredicate(
338                     arguments.getString(ARGUMENT_ANNOTATION));
339             testNotAnnotationPredicate = getNotAnnotationPredicate(
340                     arguments.getString(ARGUMENT_NOT_ANNOTATION));
341 
342             logOnly = getBooleanArgument(arguments, ARGUMENT_LOG_ONLY);
343             mCoverage = getBooleanArgument(arguments, "coverage");
344             mCoverageFilePath = arguments.getString("coverageFile");
345 
346             try {
347                 Object delay = arguments.get(ARGUMENT_DELAY_MSEC);  // Accept either string or int
348                 if (delay != null) mDelayMsec = Integer.parseInt(delay.toString());
349             } catch (NumberFormatException e) {
350                 Log.e(LOG_TAG, "Invalid delay_msec parameter", e);
351             }
352         }
353 
354         TestSuiteBuilder testSuiteBuilder = new TestSuiteBuilder(getClass().getName(),
355                 getTargetContext().getClassLoader());
356 
357         if (testSizePredicate != null) {
358             testSuiteBuilder.addRequirements(testSizePredicate);
359         }
360         if (testAnnotationPredicate != null) {
361             testSuiteBuilder.addRequirements(testAnnotationPredicate);
362         }
363         if (testNotAnnotationPredicate != null) {
364             testSuiteBuilder.addRequirements(testNotAnnotationPredicate);
365         }
366 
367         if (testClassesArg == null) {
368             if (mPackageOfTests != null) {
369                 testSuiteBuilder.includePackages(mPackageOfTests);
370             } else {
371                 TestSuite testSuite = getTestSuite();
372                 if (testSuite != null) {
373                     testSuiteBuilder.addTestSuite(testSuite);
374                 } else {
375                     // no package or class bundle arguments were supplied, and no test suite
376                     // provided so add all tests in application
377                     testSuiteBuilder.includePackages("");
378                 }
379             }
380         } else {
381             parseTestClasses(testClassesArg, testSuiteBuilder);
382         }
383 
384         testSuiteBuilder.addRequirements(getBuilderRequirements());
385 
386         mTestRunner = getAndroidTestRunner();
387         mTestRunner.setContext(getTargetContext());
388         mTestRunner.setInstrumentation(this);
389         mTestRunner.setSkipExecution(logOnly);
390         mTestRunner.setTest(testSuiteBuilder.build());
391         mTestCount = mTestRunner.getTestCases().size();
392         if (mSuiteAssignmentMode) {
393             mTestRunner.addTestListener(new SuiteAssignmentPrinter());
394         } else {
395             WatcherResultPrinter resultPrinter = new WatcherResultPrinter(mTestCount);
396             mTestRunner.addTestListener(new TestPrinter("TestRunner", false));
397             mTestRunner.addTestListener(resultPrinter);
398         }
399         start();
400     }
401 
402     /**
403      * Get the arguments passed to this instrumentation.
404      *
405      * @return the Bundle object
406      */
getArguments()407     public Bundle getArguments() {
408         return mArguments;
409     }
410 
411     /**
412      * Add a {@link TestListener}
413      * @hide
414      */
addTestListener(TestListener listener)415     protected void addTestListener(TestListener listener){
416         if(mTestRunner!=null && listener!=null){
417             mTestRunner.addTestListener(listener);
418         }
419     }
420 
getBuilderRequirements()421     List<Predicate<TestMethod>> getBuilderRequirements() {
422         return new ArrayList<Predicate<TestMethod>>();
423     }
424 
425     /**
426      * Parses and loads the specified set of test classes
427      *
428      * @param testClassArg - comma-separated list of test classes and methods
429      * @param testSuiteBuilder - builder to add tests to
430      */
parseTestClasses(String testClassArg, TestSuiteBuilder testSuiteBuilder)431     private void parseTestClasses(String testClassArg, TestSuiteBuilder testSuiteBuilder) {
432         String[] testClasses = testClassArg.split(",");
433         for (String testClass : testClasses) {
434             parseTestClass(testClass, testSuiteBuilder);
435         }
436     }
437 
438     /**
439      * Parse and load the given test class and, optionally, method
440      *
441      * @param testClassName - full package name of test class and optionally method to add.
442      *        Expected format: com.android.TestClass#testMethod
443      * @param testSuiteBuilder - builder to add tests to
444      */
parseTestClass(String testClassName, TestSuiteBuilder testSuiteBuilder)445     private void parseTestClass(String testClassName, TestSuiteBuilder testSuiteBuilder) {
446         int methodSeparatorIndex = testClassName.indexOf('#');
447         String testMethodName = null;
448 
449         if (methodSeparatorIndex > 0) {
450             testMethodName = testClassName.substring(methodSeparatorIndex + 1);
451             testClassName = testClassName.substring(0, methodSeparatorIndex);
452         }
453         testSuiteBuilder.addTestClassByName(testClassName, testMethodName, getTargetContext());
454     }
455 
getAndroidTestRunner()456     protected AndroidTestRunner getAndroidTestRunner() {
457         return new AndroidTestRunner();
458     }
459 
getBooleanArgument(Bundle arguments, String tag)460     private boolean getBooleanArgument(Bundle arguments, String tag) {
461         String tagString = arguments.getString(tag);
462         return tagString != null && Boolean.parseBoolean(tagString);
463     }
464 
465     /*
466      * Returns the size predicate object, corresponding to the "size" argument value.
467      */
getSizePredicateFromArg(String sizeArg)468     private Predicate<TestMethod> getSizePredicateFromArg(String sizeArg) {
469 
470         if (SMALL_SUITE.equals(sizeArg)) {
471             return SELECT_SMALL;
472         } else if (MEDIUM_SUITE.equals(sizeArg)) {
473             return SELECT_MEDIUM;
474         } else if (LARGE_SUITE.equals(sizeArg)) {
475             return SELECT_LARGE;
476         } else {
477             return null;
478         }
479     }
480 
481    /**
482     * Returns the test predicate object, corresponding to the annotation class value provided via
483     * the {@link #ARGUMENT_ANNOTATION} argument.
484     *
485     * @return the predicate or <code>null</code>
486     */
getAnnotationPredicate(String annotationClassName)487     private Predicate<TestMethod> getAnnotationPredicate(String annotationClassName) {
488         Class<? extends Annotation> annotationClass = getAnnotationClass(annotationClassName);
489         if (annotationClass != null) {
490             return hasAnnotation(annotationClass);
491         }
492         return null;
493     }
494 
495     /**
496      * Returns the negative test predicate object, corresponding to the annotation class value
497      * provided via the {@link #ARGUMENT_NOT_ANNOTATION} argument.
498      *
499      * @return the predicate or <code>null</code>
500      */
getNotAnnotationPredicate(String annotationClassName)501      private Predicate<TestMethod> getNotAnnotationPredicate(String annotationClassName) {
502          Class<? extends Annotation> annotationClass = getAnnotationClass(annotationClassName);
503          if (annotationClass != null) {
504              return TestPredicates.not(hasAnnotation(annotationClass));
505          }
506          return null;
507      }
508 
509     /**
510      * Helper method to return the annotation class with specified name
511      *
512      * @param annotationClassName the fully qualified name of the class
513      * @return the annotation class or <code>null</code>
514      */
getAnnotationClass(String annotationClassName)515     private Class<? extends Annotation> getAnnotationClass(String annotationClassName) {
516         if (annotationClassName == null) {
517             return null;
518         }
519         try {
520            Class<?> annotationClass = Class.forName(annotationClassName);
521            if (annotationClass.isAnnotation()) {
522                return (Class<? extends Annotation>)annotationClass;
523            } else {
524                Log.e(LOG_TAG, String.format("Provided annotation value %s is not an Annotation",
525                        annotationClassName));
526            }
527         } catch (ClassNotFoundException e) {
528             Log.e(LOG_TAG, String.format("Could not find class for specified annotation %s",
529                     annotationClassName));
530         }
531         return null;
532     }
533 
534     /**
535      * Initialize the current thread as a looper.
536      * <p/>
537      * Exposed for unit testing.
538      */
prepareLooper()539     void prepareLooper() {
540         Looper.prepare();
541     }
542 
543     @Override
onStart()544     public void onStart() {
545         prepareLooper();
546 
547         if (mJustCount) {
548             mResults.putString(Instrumentation.REPORT_KEY_IDENTIFIER, REPORT_VALUE_ID);
549             mResults.putInt(REPORT_KEY_NUM_TOTAL, mTestCount);
550             finish(Activity.RESULT_OK, mResults);
551         } else {
552             if (mDebug) {
553                 Debug.waitForDebugger();
554             }
555 
556             ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
557             PrintStream writer = new PrintStream(byteArrayOutputStream);
558             try {
559                 StringResultPrinter resultPrinter = new StringResultPrinter(writer);
560 
561                 mTestRunner.addTestListener(resultPrinter);
562 
563                 long startTime = System.currentTimeMillis();
564                 mTestRunner.runTest();
565                 long runTime = System.currentTimeMillis() - startTime;
566 
567                 resultPrinter.printResult(mTestRunner.getTestResult(), runTime);
568             } catch (Throwable t) {
569                 // catch all exceptions so a more verbose error message can be outputted
570                 writer.println(String.format("Test run aborted due to unexpected exception: %s",
571                                 t.getMessage()));
572                 t.printStackTrace(writer);
573             } finally {
574                 mResults.putString(Instrumentation.REPORT_KEY_STREAMRESULT,
575                         String.format("\nTest results for %s=%s",
576                         mTestRunner.getTestClassName(),
577                         byteArrayOutputStream.toString()));
578 
579                 if (mCoverage) {
580                     generateCoverageReport();
581                 }
582                 writer.close();
583 
584                 finish(Activity.RESULT_OK, mResults);
585             }
586         }
587     }
588 
getTestSuite()589     public TestSuite getTestSuite() {
590         return getAllTests();
591     }
592 
593     /**
594      * Override this to define all of the tests to run in your package.
595      */
getAllTests()596     public TestSuite getAllTests() {
597         return null;
598     }
599 
600     /**
601      * Override this to provide access to the class loader of your package.
602      */
getLoader()603     public ClassLoader getLoader() {
604         return null;
605     }
606 
generateCoverageReport()607     private void generateCoverageReport() {
608         // use reflection to call emma dump coverage method, to avoid
609         // always statically compiling against emma jar
610         String coverageFilePath = getCoverageFilePath();
611         java.io.File coverageFile = new java.io.File(coverageFilePath);
612         try {
613             Class<?> emmaRTClass = Class.forName("com.vladium.emma.rt.RT");
614             Method dumpCoverageMethod = emmaRTClass.getMethod("dumpCoverageData",
615                     coverageFile.getClass(), boolean.class, boolean.class);
616 
617             dumpCoverageMethod.invoke(null, coverageFile, false, false);
618             // output path to generated coverage file so it can be parsed by a test harness if
619             // needed
620             mResults.putString(REPORT_KEY_COVERAGE_PATH, coverageFilePath);
621             // also output a more user friendly msg
622             final String currentStream = mResults.getString(
623                     Instrumentation.REPORT_KEY_STREAMRESULT);
624             mResults.putString(Instrumentation.REPORT_KEY_STREAMRESULT,
625                 String.format("%s\nGenerated code coverage data to %s", currentStream,
626                 coverageFilePath));
627         } catch (ClassNotFoundException e) {
628             reportEmmaError("Is emma jar on classpath?", e);
629         } catch (SecurityException e) {
630             reportEmmaError(e);
631         } catch (NoSuchMethodException e) {
632             reportEmmaError(e);
633         } catch (IllegalArgumentException e) {
634             reportEmmaError(e);
635         } catch (IllegalAccessException e) {
636             reportEmmaError(e);
637         } catch (InvocationTargetException e) {
638             reportEmmaError(e);
639         }
640     }
641 
getCoverageFilePath()642     private String getCoverageFilePath() {
643         if (mCoverageFilePath == null) {
644             return getTargetContext().getFilesDir().getAbsolutePath() + File.separator +
645                    DEFAULT_COVERAGE_FILE_NAME;
646         } else {
647             return mCoverageFilePath;
648         }
649     }
650 
reportEmmaError(Exception e)651     private void reportEmmaError(Exception e) {
652         reportEmmaError("", e);
653     }
654 
reportEmmaError(String hint, Exception e)655     private void reportEmmaError(String hint, Exception e) {
656         String msg = "Failed to generate emma coverage. " + hint;
657         Log.e(LOG_TAG, msg, e);
658         mResults.putString(Instrumentation.REPORT_KEY_STREAMRESULT, "\nError: " + msg);
659     }
660 
661     // TODO kill this, use status() and prettyprint model for better output
662     private class StringResultPrinter extends ResultPrinter {
663 
StringResultPrinter(PrintStream writer)664         public StringResultPrinter(PrintStream writer) {
665             super(writer);
666         }
667 
printResult(TestResult result, long runTime)668         public synchronized void printResult(TestResult result, long runTime) {
669             printHeader(runTime);
670             printFooter(result);
671         }
672     }
673 
674     /**
675      * This class sends status reports back to the IInstrumentationWatcher about
676      * which suite each test belongs.
677      */
678     private class SuiteAssignmentPrinter implements TestListener {
679 
680         private Bundle mTestResult;
681         private long mStartTime;
682         private long mEndTime;
683         private boolean mTimingValid;
684 
SuiteAssignmentPrinter()685         public SuiteAssignmentPrinter() {
686         }
687 
688         /**
689          * send a status for the start of a each test, so long tests can be seen as "running"
690          */
startTest(Test test)691         public void startTest(Test test) {
692             mTimingValid = true;
693             mStartTime = System.currentTimeMillis();
694         }
695 
696         /**
697          * @see junit.framework.TestListener#addError(Test, Throwable)
698          */
addError(Test test, Throwable t)699         public void addError(Test test, Throwable t) {
700             mTimingValid = false;
701         }
702 
703         /**
704          * @see junit.framework.TestListener#addFailure(Test, AssertionFailedError)
705          */
addFailure(Test test, AssertionFailedError t)706         public void addFailure(Test test, AssertionFailedError t) {
707             mTimingValid = false;
708         }
709 
710         /**
711          * @see junit.framework.TestListener#endTest(Test)
712          */
endTest(Test test)713         public void endTest(Test test) {
714             float runTime;
715             String assignmentSuite;
716             mEndTime = System.currentTimeMillis();
717             mTestResult = new Bundle();
718 
719             if (!mTimingValid || mStartTime < 0) {
720                 assignmentSuite = "NA";
721                 runTime = -1;
722             } else {
723                 runTime = mEndTime - mStartTime;
724                 if (runTime < SMALL_SUITE_MAX_RUNTIME
725                         && !InstrumentationTestCase.class.isAssignableFrom(test.getClass())) {
726                     assignmentSuite = SMALL_SUITE;
727                 } else if (runTime < MEDIUM_SUITE_MAX_RUNTIME) {
728                     assignmentSuite = MEDIUM_SUITE;
729                 } else {
730                     assignmentSuite = LARGE_SUITE;
731                 }
732             }
733             // Clear mStartTime so that we can verify that it gets set next time.
734             mStartTime = -1;
735 
736             mTestResult.putString(Instrumentation.REPORT_KEY_STREAMRESULT,
737                     test.getClass().getName() + "#" + ((TestCase) test).getName()
738                     + "\nin " + assignmentSuite + " suite\nrunTime: "
739                     + String.valueOf(runTime) + "\n");
740             mTestResult.putFloat(REPORT_KEY_RUN_TIME, runTime);
741             mTestResult.putString(REPORT_KEY_SUITE_ASSIGNMENT, assignmentSuite);
742 
743             sendStatus(0, mTestResult);
744         }
745     }
746 
747     /**
748      * This class sends status reports back to the IInstrumentationWatcher
749      */
750     private class WatcherResultPrinter implements TestListener {
751         private final Bundle mResultTemplate;
752         Bundle mTestResult;
753         int mTestNum = 0;
754         int mTestResultCode = 0;
755         String mTestClass = null;
756 
WatcherResultPrinter(int numTests)757         public WatcherResultPrinter(int numTests) {
758             mResultTemplate = new Bundle();
759             mResultTemplate.putString(Instrumentation.REPORT_KEY_IDENTIFIER, REPORT_VALUE_ID);
760             mResultTemplate.putInt(REPORT_KEY_NUM_TOTAL, numTests);
761         }
762 
763         /**
764          * send a status for the start of a each test, so long tests can be seen
765          * as "running"
766          */
startTest(Test test)767         public void startTest(Test test) {
768             String testClass = test.getClass().getName();
769             String testName = ((TestCase)test).getName();
770             mTestResult = new Bundle(mResultTemplate);
771             mTestResult.putString(REPORT_KEY_NAME_CLASS, testClass);
772             mTestResult.putString(REPORT_KEY_NAME_TEST, testName);
773             mTestResult.putInt(REPORT_KEY_NUM_CURRENT, ++mTestNum);
774             // pretty printing
775             if (testClass != null && !testClass.equals(mTestClass)) {
776                 mTestResult.putString(Instrumentation.REPORT_KEY_STREAMRESULT,
777                         String.format("\n%s:", testClass));
778                 mTestClass = testClass;
779             } else {
780                 mTestResult.putString(Instrumentation.REPORT_KEY_STREAMRESULT, "");
781             }
782 
783             Method testMethod = null;
784             try {
785                 testMethod = test.getClass().getMethod(testName);
786                 // Report total number of iterations, if test is repetitive
787                 if (testMethod.isAnnotationPresent(RepetitiveTest.class)) {
788                     int numIterations = testMethod.getAnnotation(
789                         RepetitiveTest.class).numIterations();
790                     mTestResult.putInt(REPORT_KEY_NUM_ITERATIONS, numIterations);
791                 }
792             } catch (NoSuchMethodException e) {
793                 // ignore- the test with given name does not exist. Will be handled during test
794                 // execution
795             }
796 
797             // The delay_msec parameter is normally used to provide buffers of idle time
798             // for power measurement purposes. To make sure there is a delay before and after
799             // every test in a suite, we delay *after* every test (see endTest below) and also
800             // delay *before* the first test. So, delay test1 delay test2 delay.
801 
802             try {
803                 if (mTestNum == 1) Thread.sleep(mDelayMsec);
804             } catch (InterruptedException e) {
805                 throw new IllegalStateException(e);
806             }
807 
808             sendStatus(REPORT_VALUE_RESULT_START, mTestResult);
809             mTestResultCode = 0;
810         }
811 
812         /**
813          * @see junit.framework.TestListener#addError(Test, Throwable)
814          */
addError(Test test, Throwable t)815         public void addError(Test test, Throwable t) {
816             mTestResult.putString(REPORT_KEY_STACK, BaseTestRunner.getFilteredTrace(t));
817             mTestResultCode = REPORT_VALUE_RESULT_ERROR;
818             // pretty printing
819             mTestResult.putString(Instrumentation.REPORT_KEY_STREAMRESULT,
820                 String.format("\nError in %s:\n%s",
821                     ((TestCase)test).getName(), BaseTestRunner.getFilteredTrace(t)));
822         }
823 
824         /**
825          * @see junit.framework.TestListener#addFailure(Test, AssertionFailedError)
826          */
addFailure(Test test, AssertionFailedError t)827         public void addFailure(Test test, AssertionFailedError t) {
828             mTestResult.putString(REPORT_KEY_STACK, BaseTestRunner.getFilteredTrace(t));
829             mTestResultCode = REPORT_VALUE_RESULT_FAILURE;
830             // pretty printing
831             mTestResult.putString(Instrumentation.REPORT_KEY_STREAMRESULT,
832                 String.format("\nFailure in %s:\n%s",
833                     ((TestCase)test).getName(), BaseTestRunner.getFilteredTrace(t)));
834         }
835 
836         /**
837          * @see junit.framework.TestListener#endTest(Test)
838          */
endTest(Test test)839         public void endTest(Test test) {
840             if (mTestResultCode == 0) {
841                 mTestResult.putString(Instrumentation.REPORT_KEY_STREAMRESULT, ".");
842             }
843             sendStatus(mTestResultCode, mTestResult);
844 
845             try { // Sleep after every test, if specified
846                 Thread.sleep(mDelayMsec);
847             } catch (InterruptedException e) {
848                 throw new IllegalStateException(e);
849             }
850         }
851 
852         // TODO report the end of the cycle
853     }
854 }
855