我想测试活动中的插入和删除功能。 插入工作（testdata在表中），但抛出异常删除函数不起作用。 所以测试没有通过。 我在Logcat中有“列不唯一”错误，如果我在insert（）上设置断点 - TestActivity和debug的功能，“评估期间的错误”和“assertNotNull无法解析”的出现者。 我正在使用Activity（SourceActivity），TestActivity（SourceActivityTest）和Helper（RegisterHelper）。 SourceActivity：
public class SourceActivity extends Activity {
private String sortRuleGerman="< a,A < b,B < c,C < d,D < e,E < f,F < g,G < h,H < i,I"
+"< j,J < k,K < l,L < m,M < n,N < o,O < p,P < q,Q < r,R"
+"< s,S < t,T < u,U < v,V < w,W < x,X < y,Y < z,Z";
private String returnSourceIdentifier="testReturnValue";
private RegisterHelper helper;
private SQLiteDatabase registerDB;
public SQLiteDatabase getRegisterDB(){ return registerDB; }
private static final String TAG = SourceActivity.class.getSimpleName();
private AutoCompleteTextView autocompleteTvIdentifiers;
private ArrayAdapter<String> adapter;
private TextView tv_autoren;
private TextView tv_titelquelle;
private TextView tv_herkunft;
private TextView tv_pubdat;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_source);
if(helper == null)
helper = new RegisterHelper(this);
Button btReturn = (Button) this.findViewById(R.id.bt_quellezurueck);
btReturn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View view) {
//
// identifier auch für Callback speichern!
returnSourceIdentifier = autocompleteTvIdentifiers.getText().toString();
//insert ausführen
SourceActivity.this.insert(
returnSourceIdentifier,
tv_autoren.getText().toString(),
tv_titelquelle.getText().toString(),
tv_herkunft.getText().toString(),
tv_pubdat.getText().toString());
SourceActivity.this.callback();
SourceActivity.this.finish();
}
});
tv_autoren= (TextView) this.findViewById(R.id.tv_autoren);
tv_titelquelle = (TextView) this.findViewById(R.id.tv_titelquelle);
tv_herkunft = (TextView) this.findViewById(R.id.tv_herkunft);
tv_pubdat = (TextView) this.findViewById(R.id.tv_pubdat);
autocompleteTvIdentifiers = (AutoCompleteTextView) this.findViewById(R.id.autocomplete_identifier);
//adapter = new ArrayAdapter<String>(this, R.layout.list_item, sourceIdentifiers);
//this.sortArrayAdapter();
autocompleteTvIdentifiers.setAdapter(adapter);
initializeAdapterFromDB();
}
private void sortArrayAdapter() {
try {
adapter.sort(new RuleBasedCollator(sortRuleGerman));
} catch (ParseException pe){
Log.e(TAG,"AdapterArray sortieren-"+ pe.toString());
}
}
private void initializeAdapterFromDB(){
String selectSQL ="SELECT shortdesc " + "FROM Sources ORDER BY shortdesc";
//Datenbank öffnen:
registerDB = helper.getReadableDatabase();
try{
Cursor cursor = registerDB.rawQuery(selectSQL,null);
//die neue Liste aus der Datenbank:
String[] identifiers = new String[cursor.getCount()];
int index = 0;
while(cursor.moveToNext()){
String temp = cursor.getString(0);
identifiers[index] = temp;
Log.d(TAG, "Stichwort" + index + "; \"" + temp + "\"");
index++;
}
cursor.close();
//Adapter aus DB initialisieren:
adapter = new ArrayAdapter<String> (this, R.layout.list_item);
}
catch (Exception e){
Log.e(TAG, "Fehler beim Lesen der Kurzbezeichner. " + e.toString());
}finally {
//Datenbank wieder schliessen:
registerDB.close();
}
}
public boolean insert(String identifier, String authors, String titel, String publisher, String text){
String insertSQL="INSERT INTO Sources VALUES('" + identifier +"', '" + authors + "', '" + titel +"', '" +publisher +"','" + text + "');";
//Datenbank beschaffen
registerDB = helper.getWritableDatabase();
try{
registerDB.execSQL(insertSQL);
adapter.add(returnSourceIdentifier);
this.sortArrayAdapter();
Log.d(TAG, "Quelle zu \"" + returnSourceIdentifier + "\" in DB gespeichert");
return true;
} catch(Exception e) {
Log.e(TAG, "Fehler beim Speichern einer " + "Literaturquelle. " + e.toString());
} finally {
// ... und wieder schließen:
registerDB.close();
}
return false;
}
private void callback(){
Intent pushIntent = this.getIntent();
Bundle intentBundle = pushIntent.getExtras();
if(intentBundle == null)
Log.d(TAG,"Keine Extras im Push-Intent");
else{
String intentParam = intentBundle.getString(KeywordActivity.SOURCE_IDENTIFIER);
if(intentParam == null)
Log.d(TAG,"No Key=\"" + KeywordActivity.SOURCE_IDENTIFIER + "\" in intentBundle");
else
Log.d(TAG,"Key=\"" + KeywordActivity.SOURCE_IDENTIFIER + "\" /value=\"" + intentParam + "\" received.");
}
pushIntent.putExtra(KeywordActivity.SOURCE_IDENTIFIER, returnSourceIdentifier);
this.setResult(Activity.RESULT_OK, pushIntent);
Log.d(TAG,"SourceIdentifier\"" + returnSourceIdentifier + "\" returned.");
public boolean delete(String whereCondition){
String deleteSQL;
if (whereCondition == null)
deleteSQL="DELETE FROM Sources";
else deleteSQL="DELETE FROM Sources WHERE"+ whereCondition;
try {
registerDB.execSQL(deleteSQL);
return true;
}catch (Exception e){
Log.e(TAG, e.toString());
return false;
}
}
@Override
protected void onStop(){
super.onStop();
registerDB.close();
}
}
SourceActivityTest：
public class SourceActivityTest extends
ActivityInstrumentationTestCase2<SourceActivity> {
private SourceActivity activity;
private String[] testData ={"tword1","tword2","ttitel1","tword3","tDate"};
public SourceActivityTest(){
super(SourceActivity.class);
}
@Override
protected void setUp() throws Exception{
super.setUp();
activity=this.getActivity();
}
public void testPreconditions(){
assertNotNull(activity.getRegisterDB());
}
public void testInsert(){
assertTrue(activity.insert (testData[0], testData[1], testData[2], testData[3], testData[4]));
assertTrue(activity.delete (" shortdesc='" + testData[0] + "'"));
}
}
RegisterHelper：
public class RegisterHelper extends SQLiteOpenHelper {
private static final String DB_NAME = "Register";
private static final int DB_VERSION = 1;
private static final String TAG = RegisterHelper.class.getSimpleName();
private final String CREATE_SOURCES = "CREATE TABLE Sources ( shortdesc TEXT PRIMARY KEY , autoren TEXT NOT NULL , titel TEXT NOT NULL , verlag_ort_url TEXT NOT NULL , publikationsdatum TEXT );";
private final String CREATE_TIPWORDS = "CREATE TABLE Tipwords ( _id INTEGER PRIMARY KEY , stichwort TEXT NOT NULL , quelle TEXT NOT NULL , fundstelle TEXT NOT NULL , text TEXT NOT NULL , CONSTRAINT QuellFK FOREIGN KEY (quelle) REFERENCES Quellen(kurzbezeichnung) ON DELETE RESTRICT ON UPDATE CASCADE );";
public RegisterHelper(Context context){
super(context, DB_NAME, null, DB_VERSION);
}
@Override
public void onCreate(SQLiteDatabase db) {
try{
db.execSQL(CREATE_SOURCES);
db.execSQL(CREATE_TIPWORDS);
} catch(SQLException sqle){
// android.database.SQLException importieren!
Log.d(TAG, "DB erzeugt in: \""+ db.getPath() + "\"");
}
}
@Override //Callback Methode
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
// TODO Auto-generated method stub
}
}
编辑： 这是Test insert（）的LogCat：
01-17 12:38:14.508: I/TestRunner(1135): started: testInsert(android.and05_lektion3.test.SourceActivityTest)
01-17 12:38:14.558: I/ActivityManager(289): START u0 {act=android.intent.action.MAIN flg=0x10000000 cmp=android.and05_lektion3/.SourceActivity} from pid 1135
01-17 12:38:16.817: D/SourceActivity(1135): Stichwort0; "tword1"
01-17 12:38:18.367: I/Choreographer(1135): Skipped 352 frames! The application may be doing too much work on its main thread.
01-17 12:38:19.108: I/Choreographer(289): Skipped 31 frames! The application may be doing too much work on its main thread.
01-17 12:38:19.907: E/SourceActivity(1135): Fehler beim Speichern einer Literaturquelle. android.database.sqlite.SQLiteConstraintException: column shortdesc is not unique (code 19)
01-17 12:38:20.407: I/TestRunner(1135): failed: testInsert(android.and05_lektion3.test.SourceActivityTest)
01-17 12:38:20.407: I/TestRunner(1135): ----- begin exception -----
01-17 12:38:20.528: I/TestRunner(1135): junit.framework.AssertionFailedError
01-17 12:38:20.528: I/TestRunner(1135): at junit.framework.Assert.fail(Assert.java:48)
01-17 12:38:20.528: I/TestRunner(1135): at junit.framework.Assert.assertTrue(Assert.java:20)
01-17 12:38:20.528: I/TestRunner(1135): at junit.framework.Assert.assertTrue(Assert.java:27)
01-17 12:38:20.528: I/TestRunner(1135): at android.and05_lektion3.test.SourceActivityTest.testInsert(SourceActivityTest.java:26)
01-17 12:38:20.528: I/TestRunner(1135): at java.lang.reflect.Method.invokeNative(Native Method)
01-17 12:38:20.528: I/TestRunner(1135): at java.lang.reflect.Method.invoke(Method.java:511)
01-17 12:38:20.528: I/TestRunner(1135): at android.test.InstrumentationTestCase.runMethod(InstrumentationTestCase.java:214)
01-17 12:38:20.528: I/TestRunner(1135): at android.test.InstrumentationTestCase.runTest(InstrumentationTestCase.java:199)
01-17 12:38:20.528: I/TestRunner(1135): at android.test.ActivityInstrumentationTestCase2.runTest(ActivityInstrumentationTestCase2.java:192)
01-17 12:38:20.528: I/TestRunner(1135): at junit.framework.TestCase.runBare(TestCase.java:134)
01-17 12:38:20.528: I/TestRunner(1135): at junit.framework.TestResult$1.protect(TestResult.java:115)
01-17 12:38:20.528: I/TestRunner(1135): at junit.framework.TestResult.runProtected(TestResult.java:133)
01-17 12:38:20.528: I/TestRunner(1135): at junit.framework.TestResult.run(TestResult.java:118)
01-17 12:38:20.528: I/TestRunner(1135): at junit.framework.TestCase.run(TestCase.java:124)
01-17 12:38:20.528: I/TestRunner(1135): at android.test.AndroidTestRunner.runTest(AndroidTestRunner.java:190)
01-17 12:38:20.528: I/TestRunner(1135): at android.test.AndroidTestRunner.runTest(AndroidTestRunner.java:175)
01-17 12:38:20.528: I/TestRunner(1135): at android.test.InstrumentationTestRunner.onStart(InstrumentationTestRunner.java:555)
01-17 12:38:20.528: I/TestRunner(1135): at android.app.Instrumentation$InstrumentationThread.run(Instrumentation.java:1661)
01-17 12:38:20.528: I/TestRunner(1135): ----- end exception -----
01-17 12:38:20.627: I/TestRunner(1135): finished: testInsert(android.and05_lektion3.test.SourceActivityTest)
提前致谢！