怎么在 android 中做单元测试

如何在 android 中做单元测试
单元测试是软件开发中一项用来保证软件质量的重要技术，单元测试的好处我的不说了，呵呵，前段时间我写了一个个税计算器，把里面的一些业务方法都写了单元测试，因为在网上这方面的资料不多，只好啃自带的文档，里面有些东西写的比较简单，真正在做单元测试的时候还有些不够用

package com.wnmc.android.test;import android.test.ActivityInstrumentationTestCase2;import android.view.KeyEvent;import android.widget.Button;import android.widget.EditText;import android.widget.Spinner;import com.wnmc.android.Culcultor;import com.wnmc.android.R;public class CulcultorTest extends ActivityInstrumentationTestCase2<Culcultor> {private Culcultor mActivity;private EditText mTaxPayable;private EditText mTakeHomeMoney;private EditText mMoneyShouldPayTax;private EditText mTaxThreshold;private EditText mInsuranceAndPension;private EditText mIncome;private Button rest;private Button ok;private Spinner mIncomeType;public CulcultorTest() {super("com.wnmc.android.Culcultor", Culcultor.class);}@Overridepublic Culcultor getActivity() {// TODO Auto-generated method stubreturn super.getActivity();}@Overrideprotected void setUp() throws Exception {// TODO Auto-generated method stubsuper.setUp();mActivity = getActivity();mIncomeType = (Spinner) mActivity.findViewById(R.id.CategoriesOfIncome_type);mIncome = (EditText) mActivity.findViewById(R.id.income);rest = (Button) mActivity.findViewById(R.id.reset);ok = (Button) mActivity.findViewById(R.id.ok);mTaxThreshold = (EditText) mActivity.findViewById(R.id.tax_threshold);mInsuranceAndPension = (EditText) mActivity.findViewById(R.id.insurance_and_pension);mTaxPayable = (EditText) mActivity.findViewById(R.id.taxPayable);mTakeHomeMoney = (EditText) mActivity.findViewById(R.id.takehomemoney);mMoneyShouldPayTax = (EditText) mActivity.findViewById(R.id.money_should_payTax);}public void testPreconditions() {// assertTrue(resultViewStub != null);assertTrue(mIncome != null);assertTrue(mTaxThreshold != null);assertTrue(mInsuranceAndPension != null);assertTrue(mTaxPayable != null);assertTrue(mMoneyShouldPayTax != null);assertTrue(mTakeHomeMoney != null);// assertTrue(wagesAndSalariesViewStub!=null);}public void testWagesAndSalaries() {// 0~2000mActivity.runOnUiThread(new Runnable() {public void run() {mIncome.setText("1800");ok.requestFocus();}});this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);assertEquals(0, mActivity.getType());// 2000~4000mActivity.runOnUiThread(new Runnable() {public void run() {mIncome.setText("2500");ok.requestFocus();}});this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);assertEquals("2475.0", mTakeHomeMoney.getText().toString());// 4000~7000mActivity.runOnUiThread(new Runnable() {public void run() {mIncome.setText("6800");ok.requestFocus();}});this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);assertEquals("6205.0", mTakeHomeMoney.getText().toString());// 7000~22000mActivity.runOnUiThread(new Runnable() {public void run() {mIncome.setText("20100");ok.requestFocus();}});this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);assertEquals("16855.0", mTakeHomeMoney.getText().toString());// 22000~42000mActivity.runOnUiThread(new Runnable() {public void run() {mIncome.setText("39000");ok.requestFocus();}});this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);assertEquals("31125.0", mTakeHomeMoney.getText().toString());// 42000~62000mActivity.runOnUiThread(new Runnable() {public void run() {mIncome.setText("58000");ok.requestFocus();}});this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);assertEquals("44575.0", mTakeHomeMoney.getText().toString());// 62000~82000mActivity.runOnUiThread(new Runnable() {public void run() {mIncome.setText("74000");ok.requestFocus();}});this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);assertEquals("55175.0", mTakeHomeMoney.getText().toString());// 82000~102000mActivity.runOnUiThread(new Runnable() {public void run() {mIncome.setText("98000");ok.requestFocus();}});this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);assertEquals("69975.0", mTakeHomeMoney.getText().toString());// 大于102000mActivity.runOnUiThread(new Runnable() {public void run() {mIncome.setText("150000");ok.requestFocus();}});this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);assertEquals("98775.0", mTakeHomeMoney.getText().toString());}public void testSelfEmployedAndCommercial() {mActivity.runOnUiThread(new Runnable() {public void run() {mIncomeType.requestFocus();}});// 选中Spinner下拉列表的第二项this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);this.sendKeys(KeyEvent.KEYCODE_DPAD_DOWN);this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);assertEquals(1, mActivity.getType());// 不超过5000元的mActivity.runOnUiThread(new Runnable() {public void run() {mIncome.setText("4500");ok.requestFocus();}});this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);assertEquals("4275.0", mTakeHomeMoney.getText().toString());// 不超过10,000元mActivity.runOnUiThread(new Runnable() {public void run() {mIncome.setText("9000");ok.requestFocus();}});this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);assertEquals("8350.0", mTakeHomeMoney.getText().toString());// 不超过30,000元mActivity.runOnUiThread(new Runnable() {public void run() {mIncome.setText("23000");ok.requestFocus();}});this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);assertEquals("19650.0", mTakeHomeMoney.getText().toString());// 不超过50,000元mActivity.runOnUiThread(new Runnable() {public void run() {mIncome.setText("46000");ok.requestFocus();}});this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);assertEquals("36450.0", mTakeHomeMoney.getText().toString());// 超过50,000元mActivity.runOnUiThread(new Runnable() {public void run() {mIncome.setText("76000");ok.requestFocus();}});this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);assertEquals("56150.0", mTakeHomeMoney.getText().toString());}public void providingServices() {// 选中Spinner下拉列表的第四项mActivity.runOnUiThread(new Runnable() {public void run() {mIncomeType.requestFocus();}});this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);this.sendKeys(KeyEvent.KEYCODE_DPAD_DOWN);this.sendKeys(KeyEvent.KEYCODE_DPAD_DOWN);this.sendKeys(KeyEvent.KEYCODE_DPAD_DOWN);this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);assertEquals(3, mActivity.getType());// 不超过20000元的mActivity.runOnUiThread(new Runnable() {public void run() {mIncome.setText("18000");ok.requestFocus();}});this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);assertEquals("15120.0", mTakeHomeMoney.getText().toString());// 不超过50000元的mActivity.runOnUiThread(new Runnable() {public void run() {mIncome.setText("48000");ok.requestFocus();}});this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);assertEquals("38480.0", mTakeHomeMoney.getText().toString());// 超过50000元的mActivity.runOnUiThread(new Runnable() {public void run() {mIncome.setText("80000");ok.requestFocus();}});this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);assertEquals("62800.0", mTakeHomeMoney.getText().toString());}public void testAuthorRemuneration() {// 选中Spinner下拉列表的第五项mActivity.runOnUiThread(new Runnable() {public void run() {mIncomeType.requestFocus();}});this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);for (int i = 0; i < 4; i++) {this.sendKeys(KeyEvent.KEYCODE_DPAD_DOWN);}this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);assertEquals(4, mActivity.getType());// 不超过4000元mActivity.runOnUiThread(new Runnable() {public void run() {mIncome.setText("3900");ok.requestFocus();}});this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);assertEquals("3466.0", mTakeHomeMoney.getText().toString());// 超过4000元mActivity.runOnUiThread(new Runnable() {public void run() {mIncome.setText("8900");ok.requestFocus();}});this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);assertEquals("7903.2", mTakeHomeMoney.getText().toString());}public void testRoyalites() {// 选中Spinner下拉列表的第六项mActivity.runOnUiThread(new Runnable() {public void run() {mIncomeType.requestFocus();}});this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);for (int i = 0; i < 5; i++) {this.sendKeys(KeyEvent.KEYCODE_DPAD_DOWN);}this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);assertEquals(5, mActivity.getType());// 不超过4000元mActivity.runOnUiThread(new Runnable() {public void run() {mIncome.setText("3900");ok.requestFocus();}});this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);assertEquals("3280.0", mTakeHomeMoney.getText().toString());// 超过4000元mActivity.runOnUiThread(new Runnable() {public void run() {mIncome.setText("8900");ok.requestFocus();}});this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);assertEquals("7476.0", mTakeHomeMoney.getText().toString());}public void testInterestDividendsBonuses() {// 选中Spinner下拉列表的第七项mActivity.runOnUiThread(new Runnable() {public void run() {mIncomeType.requestFocus();}});this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);for (int i = 0; i < 6; i++) {this.sendKeys(KeyEvent.KEYCODE_DPAD_DOWN);}this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);assertEquals(6, mActivity.getType());mActivity.runOnUiThread(new Runnable() {public void run() {mIncome.setText("8888");ok.requestFocus();}});this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);assertEquals("7110.4", mTakeHomeMoney.getText().toString());}public void testLeaseProperty() {// 选中Spinner下拉列表的第八项mActivity.runOnUiThread(new Runnable() {public void run() {mIncomeType.requestFocus();}});this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);for (int i = 0; i < 7; i++) {this.sendKeys(KeyEvent.KEYCODE_DPAD_DOWN);}this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);assertEquals(7, mActivity.getType());// 不超过4000元mActivity.runOnUiThread(new Runnable() {public void run() {mIncome.setText("3400");ok.requestFocus();}});this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);assertEquals("2880.0", mTakeHomeMoney.getText().toString());// 超过4000元mActivity.runOnUiThread(new Runnable() {public void run() {mIncome.setText("6400");ok.requestFocus();}});this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);assertEquals("5376.0", mTakeHomeMoney.getText().toString());}public void testTransferProperty() {// 选中Spinner下拉列表的第九项mActivity.runOnUiThread(new Runnable() {public void run() {mIncomeType.requestFocus();}});this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);for (int i = 0; i < 8; i++) {this.sendKeys(KeyEvent.KEYCODE_DPAD_DOWN);}this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);assertEquals(8, mActivity.getType());mActivity.runOnUiThread(new Runnable() {public void run() {mIncome.setText("50000");ok.requestFocus();}});this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);assertEquals("40000.0", mTakeHomeMoney.getText().toString());}public void testIncidentalIncome() {// 选中Spinner下拉列表的第十项mActivity.runOnUiThread(new Runnable() {public void run() {mIncomeType.requestFocus();}});this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);for (int i = 0; i < 9; i++) {this.sendKeys(KeyEvent.KEYCODE_DPAD_DOWN);}this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);assertEquals(9, mActivity.getType());mActivity.runOnUiThread(new Runnable() {public void run() {mIncome.setText("50000");ok.requestFocus();}});this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);assertEquals("40000.0", mTakeHomeMoney.getText().toString());}@Overrideprotected void tearDown() throws Exception {// TODO Auto-generated method stubsuper.tearDown();}}

这是我为个税器写的部分单元测试代码，还在不断完善当中，要参考原项目，请自己去下载 1 楼 yugiohboy 2011-06-02   其实我一直很想知道这是什么一回事。假设我的activity1的view上有button1 button2 button1的onclick是点击会打开activity2,activity2上有个button3，假如测试时getActivity得到的是activity1,貌似直到该testcase结束这个getactivity一直都是activity1,如何测试activity2呢？button1.requestFouce(),button.performClick就会触发onClick事件，这时会跳到activity2