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Android Building, Testing and reversing
- The document discusses various topics around testing Android applications such as creating test projects, different types of tests (unit, integration, UI, etc.), testing frameworks like JUnit, using annotations, running and debugging tests. - It provides an overview of key concepts and tools required for testing including testing on emulators and real devices, using mocks, assertions and view assertions in tests. - The document demonstrates how to structure tests, write test cases with different assertions and annotations, and debug issues by running tests in Eclipse and from the command line.
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Android Building, Testing and reversing
- 2. Agenda: -Intro -Android Testing -Creating aproject -JUnit Testing -Mock Objects + UI Testing -Integration and acceptance test -Performance and system testing -Advance assertions -TDD -Real App Dev !
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- 4. Ego slide Mobile Developer@ Sixt M. Sc. UCM/RWTH CS Teacher at Alcalá University ! ! ! +EnriqueLópezMañas @eenriquelopez
- 5. Ego slide Mobile Developer@ Sixt M.Sc. Politehnica Timisoara ! ! ! +ami.antoch
- 6. Keywords Continuous Integration TDD JUnit /Unit Testing Instrumentation Behavior Driven Development Performance Testing Profiling
- 7. What you need •Java SE Version 1.6 • Android SDK Tools • Eclipse IDE for Java Developers • ADT • (Android Bundle)
- 8. Testing • Develop • Finding •Correcting
- 9. Is about productivity! $59.5billion annually ! 1/3 could be saved ! (National Institute of Standards and Technology (USA))
- 10. Why, what, how,when During, before ! Continuous Integration ! Classes, methods, lines, basic blocks..
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- 12. Activity lifecycle Databases andfilesystem operations
- 13. Activity lifecycle Databases andfilesystem operations Physical characteristics of the device
- 14. Activity lifecycle Databases andfilesystem operations Physical characteristics of the device (AVD and Genymotion)
- 15. UnitTests Written by programmersfor programmers JUnit
- 16. Elements of atest The fixture Method setUp() Method tearDown() Test preconditions (retrospection vs. annotations)
- 17. Assertions • assertEquals() • assertFalse() •assertNotNull() • assertNotSame() • assertNull() • assertSame() • assertTrue() • fail()
- 18. Mock objects Mimic objects •MockApplication • MockContentProvider • MockContentResolver • MockContext • MockCursor • MockDialogInterface • MockPackageManager • MockResources
- 19. UI Tests Annotation @UIThreadTest ClassTouchUtils • Click • Drag • LongClick • Scroll • Tap • Touch
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- 21. Instrumentation Foundation Control application undertest and permit injection
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- 25. Android Testing Best practice:test should live in a separate correlated project • Stripped (not included in main) • Easier to run in Emulator • Takes less time • Encourages code reusability
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- 34. Running from theemulator
- 35. Running from thecommand line
- 36. Running from thecommand line • All • From an specific test case • Specific test by name • By category • (create custom annotations)
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- 38. Summary • Created firstAndroid project • Followed best practice creating companion project • Simple test class • Eclipse • Command line options
- 39. Mockup • All Mockimplementations • All methods non functional • Throw UnsupportedOperationExceiption
- 40. UI Testing • AndroidSDK Tools, 21+ • API 16+ Tools • uiaumatorviewer • uiautomator
- 41. Integration tests Individual componentswork jointly
- 42. Integration tests Individual componentswork jointly Acceptance tests QA, Business language
- 43. Performance tests Performance behavior Systemtest • GUI Test • Smoke Tests • Performance • Installation
- 44. Benchmarking • Traditional loggingstatement methods • Creating Android performance tests • Using profiling tools • Microbenchmarks using Caliper
- 45. Benchmarking /* (non-Javadoc) * @seeandroid.text.TextWatcher#onTextChanged( * java.lang.CharSequence, int, int, int) */ public void onTextChanged(CharSequence s, int start, int before, int count) { if (!mDest.hasWindowFocus() || mDest.hasFocus() || s == null ) { return; } final String str = s.toString(); if ( "".equals(str) ) { mDest.setText(""); return; } final long t0; if ( BENCHMARK_TEMPERATURE_CONVERSION ) { t0 = System.currentTimeMillis(); } !
- 46. Benchmarking try { final doubletemp = Double.parseDouble(str); final double result = (mOp == OP.C2F) ? TemperatureConverter.celsiusToFarenheit(temp); TemperatureConverter.fahrenheitToCelsius(temp); final String resultString = String.format("%.2f", result); mDest.setNumber(result); mDest.setSelection(resultString.length()); } catch (NumberFormatException e) { // WARNING // this is generated while a number is entered, // for example just a '-' // so we don't want to show the error } catch (Exception e) { mSource.setError("ERROR: " + e.getLocalizedMessage()); } if ( BENCHMARK_TEMPERATURE_CONVERSION ) { long t = System.currentTimeMillis() - t0; Log.i(TAG, "TemperatureConversion took " + t + " ms to complete."); } }
- 47. Android performance tests Classeshidden only for System apps :(
- 48. Assertions in depth •assertEquals • assertFalse • assertNotNull • assertNotSame • assertNull • assertSame • assertTrue • assertFail
- 49. Assertions in depth publicvoid testNotImplementedYet() { fail("Not implemented yet"); }
- 50. Assertions in depth } publicvoid testShouldThrowException() { try { MyFirstProjectActivity.methodThatShouldThrowException(); fail("Exception was not thrown"); } catch ( Exception ex ) { // do nothing }
- 51. Custom messages public voidtestMax() { final int a = 1; final int b = 2; final int expected = b; final int actual = Math.max(a, b); assertEquals("Expection " + expected + " but was " + actual, expected, actual); }
- 52. Static imports public voidtestAlignment() { final int margin = 0; ... android.test.ViewAsserts.assertRightAligned( mMessage, mCapitalize, margin); ! }
- 53. Static imports import staticandroid.test.ViewAsserts.assertRightAligned; public void testAlignment() { final int margin = 0; assertRightAligned(mMessage, mCapitalize, margin); }
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- 68. Example public void testUserInterfaceLayout(){ final int margin = 0; final View origin = mActivity.getWindow().getDecorView(); assertOnScreen(origin, mMessage); assertOnScreen(origin, mCapitalize); assertRightAligned(mMessage, mCapitalize, margin); }
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- 80. Example @UiThreadTest public void testNoErrorInCapitalization(){ final String msg = "this is a sample"; mMessage.setText(msg); mCapitalize.performClick(); final String actual = mMessage.getText().toString(); final String notExpectedRegexp = “(?i:ERROR)"; assertNotContainsRegex("Capitalization found error:", notExpectedRegexp, actual); }
- 81. assertActivityRequiresPermission public void testActivityPermission(){ final String PKG = "com.example.aatg.myfirstproject"; final String ACTIVITY = PKG + ".MyFirstProjectActivity"; final String PERMISSION = android.Manifest.permission.WRITE_EXTERNAL_STORAGE; assertActivityRequiresPermission(PKG, ACTIVITY, PERMISSION); }
- 82. assertReadingContentUriRequiresPermission } public void testReadingContacts(){ final Uri URI = ContactsContract.AUTHORITY_URI; final String PERMISSION = android.Manifest.permission.READ_CONTACTS; assertReadingContentUriRequiresPermission(URI, PERMISSION);
- 83. assertWritingContentUriRequiresPermission public void testWritingContacts(){ final Uri URI = ContactsContract.AUTHORITY_URI; final String PERMISSION = android.Manifest.permission.WRITE_CONTACTS; assertWritingContentUriRequiresPermission(URI, PERMISSION); }
- 84. ActivityMonitor } public void testFollowLink(){ final Instrumentation inst = getInstrumentation(); IntentFilter intentFilter = new IntentFilter(Intent.ACTION_VIEW); intentFilter.addDataScheme("http"); intentFilter.addCategory(Intent.CATEGORY_BROWSABLE); ActivityMonitor monitor = inst.addMonitor(intentFilter, null, false); assertEquals(0, monitor.getHits()); TouchUtils.clickView(this, mLink); monitor.waitForActivityWithTimeout(5000); assertEquals(1, monitor.getHits()); inst.removeMonitor(monitor);
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- 86. Summary Used several typesof assertion Explained mock objects Exemplified different tests
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- 89. Test Driven Development •Difficult to divert code • Focus NO SILVER BULLET
- 90. Example project -temperature converter
- 91. Requirements: • Application convertfrom Celsius to F. • … and viceversa • Two fields to input data • When temperature is entered, other field updates • Error displayed • Some space reserved keyboard • Entry fields start empty • Digits right aligned • Last entered values retained after onPause()
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- 94. From requirement totests
- 95. AVD and EmulatorOptions
- 96. Headless emulator emulator -avdtest -no-window -no-audio -no-boot-anim -port 5580 &
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- 98. Building with ant androidupdate project —path .
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- 102. Thank you ! +Enrique López Mañas @eenriquelopez