我在ContentProvider上进行了大约十次测试,只使用了sqlite; all pass保存在Content Provider的query()方法中通过queryBuilder.query()的两个.
正在测试的方法在实际应用中起作用！
这是API 17 r2和RoboLectric：
robolectric-2.0-α-3-20130417.013705-46-罐与 – dependencies.jar
@Override
public Cursor query(Uri uri,String[] projection,String selection,String[] selectionArgs,String sortOrder) {
Log.d(Constants.TAG,"MyContentProvider.query()");
switch(matcher.match(uri)) {
case ITEM: // OK
selection = "_id = ?";
selectionArgs = new String[]{ Long.toString(ContentUris.parseId(uri)) };
case ITEMS: // OK
break;
default:
throw new IllegalArgumentException("Did not recognize URI " + uri);
}
// build the query with sqliteQueryBuilder
sqliteQueryBuilder qBuilder = new sqliteQueryBuilder();
qBuilder.setTables(TABLE_NAME);
// query the database and get result in cursor
final sqliteDatabase db = mDatabase.getReadableDatabase();
Cursor resultCursor = qBuilder.query(db,// Line 112 in trace
projection,selection,selectionArgs,null,sortOrder,null);
resultCursor.setNotificationUri(getContext().getContentResolver(),uri);
return resultCursor;
}
这是追溯：
java.lang.RuntimeException: java.lang.InstantiationException at org.robolectric.bytecode.ShadowWrangler.createShadowFor(ShadowWrangler.java:300) at org.robolectric.bytecode.ShadowWrangler.initializing(ShadowWrangler.java:74) at org.robolectric.bytecode.RobolectricInternals.initializing(RobolectricInternals.java:90) at android.database.sqlite.sqliteQuery.$$robo$init(sqliteQuery.java) at android.database.sqlite.sqliteClosable.<init>(sqliteClosable.java:26) at android.database.sqlite.sqliteProgram.<init>(sqliteProgram.java:41) at android.database.sqlite.sqliteQuery.<init>(sqliteQuery.java:37) at android.database.sqlite.sqliteDirectCursorDriver.query(sqliteDirectCursorDriver.java:44) at android.database.sqlite.sqliteDatabase.rawQueryWithFactory(sqliteDatabase.java:1314) at android.database.sqlite.sqliteQueryBuilder.query(sqliteQueryBuilder.java:400) at android.database.sqlite.sqliteQueryBuilder.query(sqliteQueryBuilder.java:333) at com.example.readingsprovider.ReadingsContentProvider.query(ReadingsContentProvider.java:112) at com.example.readingsprovider.test.ContentProviderTest.testUpdateMultipleWithoutWhere(ContentProviderTest.java:110) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20) at org.robolectric.RobolectricTestRunner$2.evaluate(RobolectricTestRunner.java:267) at org.junit.runners.BlockJUnit4ClassRunner.runNotIgnored(BlockJUnit4ClassRunner.java:79) at org.junit.runners.BlockJUnit4ClassRunner.runchild(BlockJUnit4ClassRunner.java:71) at org.junit.runners.BlockJUnit4ClassRunner.runchild(BlockJUnit4ClassRunner.java:49) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52) at org.junit.runners.ParentRunner.runchildren(ParentRunner.java:191) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184) at org.robolectric.RobolectricTestRunner$1.evaluate(RobolectricTestRunner.java:202) at org.junit.runners.ParentRunner.run(ParentRunner.java:236) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197) Caused by: java.lang.InstantiationException at sun.reflect.InstantiationExceptionConstructorAccessorImpl.newInstance(InstantiationExceptionConstructorAccessorImpl.java:30) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at java.lang.class.newInstance0(Class.java:357) at java.lang.class.newInstance(Class.java:310) at org.robolectric.bytecode.ShadowWrangler.createShadowFor(ShadowWrangler.java:293) at org.robolectric.bytecode.ShadowWrangler.initializing(ShadowWrangler.java:74) at org.robolectric.bytecode.RobolectricInternals.initializing(RobolectricInternals.java:90) at android.database.sqlite.sqliteQuery.$$robo$init(sqliteQuery.java) at android.database.sqlite.sqliteClosable.<init>(sqliteClosable.java:26) at android.database.sqlite.sqliteProgram.<init>(sqliteProgram.java:41) at android.database.sqlite.sqliteQuery.<init>(sqliteQuery.java:37) at android.database.sqlite.sqliteDirectCursorDriver.$$robo$$sqliteDirectCursorDriver_7ac1_query(sqliteDirectCursorDriver.java:44) at android.database.sqlite.sqliteDirectCursorDriver.query(sqliteDirectCursorDriver.java) at android.database.sqlite.sqliteDatabase.$$robo$$sqliteDatabase_ab15_rawQueryWithFactory(sqliteDatabase.java:1314) at android.database.sqlite.sqliteDatabase.rawQueryWithFactory(sqliteDatabase.java) at android.database.sqlite.sqliteQueryBuilder.$$robo$$sqliteQueryBuilder_ba4d_query(sqliteQueryBuilder.java:400) at android.database.sqlite.sqliteQueryBuilder.query(sqliteQueryBuilder.java) at android.database.sqlite.sqliteQueryBuilder.$$robo$$sqliteQueryBuilder_ba4d_query(sqliteQueryBuilder.java:333) at android.database.sqlite.sqliteQueryBuilder.query(sqliteQueryBuilder.java) at com.example.readingsprovider.ReadingsContentProvider.query(ReadingsContentProvider.java:112) at com.example.readingsprovider.test.ContentProviderTest.testUpdateMultipleWithoutWhere(ContentProviderTest.java:110) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) ... 21 more
可以告诉我这是否是Robolectric的限制,还是我的不好？非常感谢！
附：如果Reflection API将失败的类名放在InstantiationException消息中,难道不是梦幻般的吗？
解决方法
我的项目有同样的问题,终于能够用一些谷歌搜索和U Avalos的前一个答案来解决它
@Implements(value = sqliteDatabase.class,inheritImplementationMethods = true) public class CustomsqliteShadow extends ShadowsqliteDatabase { @Implementation public Cursor rawQueryWithFactory (sqliteDatabase.CursorFactory cursorFactory,String sql,String editTable,CancellationSignal cancellationSignal) { return rawQueryWithFactory(cursorFactory,sql,editTable); } }
要使用自定义阴影类,可以在robolectric2中使用@Config注释
@RunWith(RobolectricTestRunner.class) @Config( shadows = {CustomsqliteShadow.class}) public class ContentProviderTest {
参考
http://robolectric.blogspot.co.at/2013/05/configuring-robolectric-20.html
