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Android example source code file (ContentProviderOperationTest.java)
This example Android source code file (ContentProviderOperationTest.java) is included in the DevDaily.com
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The ContentProviderOperationTest.java Android example source code
/*
* Copyright (C) 2009 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.content;
import android.content.ContentValues;
import android.database.Cursor;
import android.database.MatrixCursor;
import android.net.Uri;
import android.os.Parcel;
import android.test.suitebuilder.annotation.SmallTest;
import android.text.TextUtils;
import junit.framework.TestCase;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.util.HashMap;
import java.util.Set;
import java.util.Map;
import java.util.Map.Entry;
@SmallTest
public class ContentProviderOperationTest extends TestCase {
private final static Uri sTestUri1 = Uri.parse("content://authority/blah");
private final static ContentValues sTestValues1;
private final static Class<ContentProviderOperation.Builder> CLASS_BUILDER =
ContentProviderOperation.Builder.class;
private final static Class<ContentProviderOperation> CLASS_OPERATION =
ContentProviderOperation.class;
static {
sTestValues1 = new ContentValues();
sTestValues1.put("a", 1);
sTestValues1.put("b", "two");
}
public void testInsert() throws OperationApplicationException {
ContentProviderOperation op1 = ContentProviderOperation.newInsert(sTestUri1)
.withValues(sTestValues1)
.build();
ContentProviderResult result = op1.apply(new TestContentProvider() {
public Uri insert(Uri uri, ContentValues values) {
assertEquals(sTestUri1.toString(), uri.toString());
assertEquals(sTestValues1.toString(), values.toString());
return uri.buildUpon().appendPath("19").build();
}
}, null, 0);
assertEquals(sTestUri1.buildUpon().appendPath("19").toString(), result.uri.toString());
}
public void testInsertNoValues() throws OperationApplicationException {
ContentProviderOperation op1 = ContentProviderOperation.newInsert(sTestUri1)
.build();
ContentProviderResult result = op1.apply(new TestContentProvider() {
public Uri insert(Uri uri, ContentValues values) {
assertEquals(sTestUri1.toString(), uri.toString());
assertNull(values);
return uri.buildUpon().appendPath("19").build();
}
}, null, 0);
assertEquals(sTestUri1.buildUpon().appendPath("19").toString(), result.uri.toString());
}
public void testInsertFailed() {
ContentProviderOperation op1 = ContentProviderOperation.newInsert(sTestUri1)
.withValues(sTestValues1)
.build();
try {
op1.apply(new TestContentProvider() {
public Uri insert(Uri uri, ContentValues values) {
assertEquals(sTestUri1.toString(), uri.toString());
assertEquals(sTestValues1.toString(), values.toString());
return null;
}
}, null, 0);
fail("the apply should have thrown an OperationApplicationException");
} catch (OperationApplicationException e) {
// this is the expected case
}
}
public void testInsertWithBackRefs() throws OperationApplicationException {
ContentProviderResult[] previousResults = new ContentProviderResult[4];
previousResults[0] = new ContentProviderResult(100);
previousResults[1] = new ContentProviderResult(101);
previousResults[2] = new ContentProviderResult(102);
previousResults[3] = new ContentProviderResult(103);
ContentProviderOperation op1 = ContentProviderOperation.newInsert(sTestUri1)
.withValues(sTestValues1)
.withValueBackReference("a1", 3)
.withValueBackReference("a2", 1)
.build();
ContentProviderResult result = op1.apply(new TestContentProvider() {
public Uri insert(Uri uri, ContentValues values) {
assertEquals(sTestUri1.toString(), uri.toString());
ContentValues expected = new ContentValues(sTestValues1);
expected.put("a1", 103);
expected.put("a2", 101);
assertEquals(expected.toString(), values.toString());
return uri.buildUpon().appendPath("19").build();
}
}, previousResults, previousResults.length);
assertEquals(sTestUri1.buildUpon().appendPath("19").toString(), result.uri.toString());
}
public void testUpdate() throws OperationApplicationException {
ContentProviderOperation op1 = ContentProviderOperation.newInsert(sTestUri1)
.withValues(sTestValues1)
.build();
ContentProviderResult[] backRefs = new ContentProviderResult[2];
ContentProviderResult result = op1.apply(new TestContentProvider() {
public Uri insert(Uri uri, ContentValues values) {
assertEquals(sTestUri1.toString(), uri.toString());
assertEquals(sTestValues1.toString(), values.toString());
return uri.buildUpon().appendPath("19").build();
}
}, backRefs, 1);
assertEquals(sTestUri1.buildUpon().appendPath("19").toString(), result.uri.toString());
}
public void testAssert() {
// Build an operation to assert values match provider
ContentProviderOperation op1 = ContentProviderOperation.newAssertQuery(sTestUri1)
.withValues(sTestValues1).build();
try {
// Assert that values match from cursor
ContentProviderResult result = op1.apply(new TestContentProvider() {
public Cursor query(Uri uri, String[] projection, String selection,
String[] selectionArgs, String sortOrder) {
// Return cursor over specific set of values
return getCursor(sTestValues1, 1);
}
}, null, 0);
} catch (OperationApplicationException e) {
fail("newAssert() failed");
}
}
public void testAssertNoValues() {
// Build an operation to assert values match provider
ContentProviderOperation op1 = ContentProviderOperation.newAssertQuery(sTestUri1)
.withExpectedCount(1).build();
try {
// Assert that values match from cursor
ContentProviderResult result = op1.apply(new TestContentProvider() {
public Cursor query(Uri uri, String[] projection, String selection,
String[] selectionArgs, String sortOrder) {
// Return cursor over specific set of values
return getCursor(sTestValues1, 1);
}
}, null, 0);
} catch (OperationApplicationException e) {
fail("newAssert() failed");
}
ContentProviderOperation op2 = ContentProviderOperation.newAssertQuery(sTestUri1)
.withExpectedCount(0).build();
try {
// Assert that values match from cursor
ContentProviderResult result = op2.apply(new TestContentProvider() {
public Cursor query(Uri uri, String[] projection, String selection,
String[] selectionArgs, String sortOrder) {
// Return cursor over specific set of values
return getCursor(sTestValues1, 0);
}
}, null, 0);
} catch (OperationApplicationException e) {
fail("newAssert() failed");
}
ContentProviderOperation op3 = ContentProviderOperation.newAssertQuery(sTestUri1)
.withExpectedCount(2).build();
try {
// Assert that values match from cursor
ContentProviderResult result = op3.apply(new TestContentProvider() {
public Cursor query(Uri uri, String[] projection, String selection,
String[] selectionArgs, String sortOrder) {
// Return cursor over specific set of values
return getCursor(sTestValues1, 5);
}
}, null, 0);
fail("we expect the exception to be thrown");
} catch (OperationApplicationException e) {
}
}
/**
* Build a {@link Cursor} with a single row that contains all values
* provided through the given {@link ContentValues}.
*/
private Cursor getCursor(ContentValues contentValues, int numRows) {
final Set<Entry valueSet = contentValues.valueSet();
final String[] keys = new String[valueSet.size()];
final Object[] values = new Object[valueSet.size()];
int i = 0;
for (Entry<String, Object> entry : valueSet) {
keys[i] = entry.getKey();
values[i] = entry.getValue();
i++;
}
final MatrixCursor cursor = new MatrixCursor(keys);
for (i = 0; i < numRows; i++) {
cursor.addRow(values);
}
return cursor;
}
public void testValueBackRefs() {
ContentValues values = new ContentValues();
values.put("a", "in1");
values.put("a2", "in2");
values.put("b", "in3");
values.put("c", "in4");
ContentProviderResult[] previousResults = new ContentProviderResult[4];
previousResults[0] = new ContentProviderResult(100);
previousResults[1] = new ContentProviderResult(101);
previousResults[2] = new ContentProviderResult(102);
previousResults[3] = new ContentProviderResult(103);
ContentValues expectedValues = new ContentValues(values);
expectedValues.put("a1", (long) 103);
expectedValues.put("a2", (long) 101);
expectedValues.put("a3", (long) 102);
ContentProviderOperation op1 = ContentProviderOperation.newInsert(sTestUri1)
.withValues(values)
.withValueBackReference("a1", 3)
.withValueBackReference("a2", 1)
.withValueBackReference("a3", 2)
.build();
ContentValues v2 = op1.resolveValueBackReferences(previousResults, previousResults.length);
assertEquals(expectedValues, v2);
}
public void testSelectionBackRefs() {
ContentProviderResult[] previousResults = new ContentProviderResult[4];
previousResults[0] = new ContentProviderResult(100);
previousResults[1] = new ContentProviderResult(101);
previousResults[2] = new ContentProviderResult(102);
previousResults[3] = new ContentProviderResult(103);
String[] selectionArgs = new String[]{"a", null, null, "b", null};
final ContentValues values = new ContentValues();
values.put("unused", "unused");
ContentProviderOperation op1 = ContentProviderOperation.newUpdate(sTestUri1)
.withSelectionBackReference(1, 3)
.withSelectionBackReference(2, 1)
.withSelectionBackReference(4, 2)
.withSelection("unused", selectionArgs)
.withValues(values)
.build();
String[] s2 = op1.resolveSelectionArgsBackReferences(
previousResults, previousResults.length);
assertEquals("a,103,101,b,102", TextUtils.join(",", s2));
}
public void testParcelingOperation() throws NoSuchFieldException, IllegalAccessException,
NoSuchMethodException, InvocationTargetException, InstantiationException {
Parcel parcel = Parcel.obtain();
ContentProviderOperation op1;
ContentProviderOperation op2;
HashMap<Integer, Integer> selArgsBackRef = new HashMap();
selArgsBackRef.put(1, 2);
selArgsBackRef.put(3, 4);
ContentValues values = new ContentValues();
values.put("v1", "val1");
values.put("v2", "43");
ContentValues valuesBackRef = new ContentValues();
values.put("v3", "val3");
values.put("v4", "44");
try {
ContentProviderOperation.Builder builder = ContentProviderOperation.newInsert(
Uri.parse("content://goo/bar"));
builderSetExpectedCount(builder, 42);
builderSetSelection(builder, "selection");
builderSetSelectionArgs(builder, new String[]{"a", "b"});
builderSetSelectionArgsBackReferences(builder, selArgsBackRef);
builderSetValues(builder, values);
builderSetValuesBackReferences(builder, valuesBackRef);
op1 = newOperationFromBuilder(builder);
op1.writeToParcel(parcel, 0);
parcel.setDataPosition(0);
op2 = ContentProviderOperation.CREATOR.createFromParcel(parcel);
assertEquals(ContentProviderOperation.TYPE_INSERT, operationGetType(op2));
assertEquals("content://goo/bar", operationGetUri(op2).toString());
assertEquals(Integer.valueOf(42), operationGetExpectedCount(op2));
assertEquals("selection", operationGetSelection(op2));
assertEquals(2, operationGetSelectionArgs(op2).length);
assertEquals("a", operationGetSelectionArgs(op2)[0]);
assertEquals("b", operationGetSelectionArgs(op2)[1]);
assertEquals(values, operationGetValues(op2));
assertEquals(valuesBackRef, operationGetValuesBackReferences(op2));
assertEquals(2, operationGetSelectionArgsBackReferences(op2).size());
assertEquals(Integer.valueOf(2), operationGetSelectionArgsBackReferences(op2).get(1));
assertEquals(Integer.valueOf(4), operationGetSelectionArgsBackReferences(op2).get(3));
} finally {
parcel.recycle();
}
try {
ContentProviderOperation.Builder builder = ContentProviderOperation.newUpdate(
Uri.parse("content://goo/bar"));
builderSetSelectionArgsBackReferences(builder, selArgsBackRef);
op1 = newOperationFromBuilder(builder);
op1.writeToParcel(parcel, 0);
parcel.setDataPosition(0);
op2 = ContentProviderOperation.CREATOR.createFromParcel(parcel);
assertEquals(ContentProviderOperation.TYPE_UPDATE, operationGetType(op2));
assertEquals("content://goo/bar", operationGetUri(op2).toString());
assertNull(operationGetExpectedCount(op2));
assertNull(operationGetSelection(op2));
assertNull(operationGetSelectionArgs(op2));
assertNull(operationGetValues(op2));
assertNull(operationGetValuesBackReferences(op2));
assertEquals(2, operationGetSelectionArgsBackReferences(op2).size());
assertEquals(Integer.valueOf(2), operationGetSelectionArgsBackReferences(op2).get(1));
assertEquals(Integer.valueOf(4), operationGetSelectionArgsBackReferences(op2).get(3));
} finally {
parcel.recycle();
}
try {
ContentProviderOperation.Builder builder = ContentProviderOperation.newDelete(
Uri.parse("content://goo/bar"));
op1 = newOperationFromBuilder(builder);
op1.writeToParcel(parcel, 0);
parcel.setDataPosition(0);
op2 = ContentProviderOperation.CREATOR.createFromParcel(parcel);
assertEquals(ContentProviderOperation.TYPE_DELETE, operationGetType(op2));
assertEquals("content://goo/bar", operationGetUri(op2).toString());
assertNull(operationGetExpectedCount(op2));
assertNull(operationGetSelection(op2));
assertNull(operationGetSelectionArgs(op2));
assertNull(operationGetValues(op2));
assertNull(operationGetValuesBackReferences(op2));
assertNull(operationGetSelectionArgsBackReferences(op2));
} finally {
parcel.recycle();
}
}
private static ContentProviderOperation newOperationFromBuilder(
ContentProviderOperation.Builder builder)
throws NoSuchMethodException, InstantiationException, IllegalAccessException,
InvocationTargetException {
final Constructor constructor = CLASS_OPERATION.getDeclaredConstructor(CLASS_BUILDER);
constructor.setAccessible(true);
return (ContentProviderOperation) constructor.newInstance(builder);
}
private void builderSetSelectionArgsBackReferences(
ContentProviderOperation.Builder builder, HashMap<Integer, Integer> selArgsBackRef)
throws NoSuchFieldException, IllegalAccessException {
Field field;
field = CLASS_BUILDER.getDeclaredField("mSelectionArgsBackReferences");
field.setAccessible(true);
field.set(builder, selArgsBackRef);
}
private void builderSetValuesBackReferences(
ContentProviderOperation.Builder builder, ContentValues valuesBackReferences)
throws NoSuchFieldException, IllegalAccessException {
Field field;
field = CLASS_BUILDER.getDeclaredField("mValuesBackReferences");
field.setAccessible(true);
field.set(builder, valuesBackReferences);
}
private void builderSetSelection(
ContentProviderOperation.Builder builder, String selection)
throws NoSuchFieldException, IllegalAccessException {
Field field;
field = CLASS_BUILDER.getDeclaredField("mSelection");
field.setAccessible(true);
field.set(builder, selection);
}
private void builderSetSelectionArgs(
ContentProviderOperation.Builder builder, String[] selArgs)
throws NoSuchFieldException, IllegalAccessException {
Field field;
field = CLASS_BUILDER.getDeclaredField("mSelectionArgs");
field.setAccessible(true);
field.set(builder, selArgs);
}
private void builderSetValues(
ContentProviderOperation.Builder builder, ContentValues values)
throws NoSuchFieldException, IllegalAccessException {
Field field;
field = CLASS_BUILDER.getDeclaredField("mValues");
field.setAccessible(true);
field.set(builder, values);
}
private void builderSetExpectedCount(
ContentProviderOperation.Builder builder, Integer expectedCount)
throws NoSuchFieldException, IllegalAccessException {
Field field;
field = CLASS_BUILDER.getDeclaredField("mExpectedCount");
field.setAccessible(true);
field.set(builder, expectedCount);
}
private int operationGetType(ContentProviderOperation operation)
throws NoSuchFieldException, IllegalAccessException {
final Field field = CLASS_OPERATION.getDeclaredField("mType");
field.setAccessible(true);
return field.getInt(operation);
}
private Uri operationGetUri(ContentProviderOperation operation)
throws NoSuchFieldException, IllegalAccessException {
final Field field = CLASS_OPERATION.getDeclaredField("mUri");
field.setAccessible(true);
return (Uri) field.get(operation);
}
private String operationGetSelection(ContentProviderOperation operation)
throws NoSuchFieldException, IllegalAccessException {
final Field field = CLASS_OPERATION.getDeclaredField("mSelection");
field.setAccessible(true);
return (String) field.get(operation);
}
private String[] operationGetSelectionArgs(ContentProviderOperation operation)
throws NoSuchFieldException, IllegalAccessException {
final Field field = CLASS_OPERATION.getDeclaredField("mSelectionArgs");
field.setAccessible(true);
return (String[]) field.get(operation);
}
private ContentValues operationGetValues(ContentProviderOperation operation)
throws NoSuchFieldException, IllegalAccessException {
final Field field = CLASS_OPERATION.getDeclaredField("mValues");
field.setAccessible(true);
return (ContentValues) field.get(operation);
}
private Integer operationGetExpectedCount(ContentProviderOperation operation)
throws NoSuchFieldException, IllegalAccessException {
final Field field = CLASS_OPERATION.getDeclaredField("mExpectedCount");
field.setAccessible(true);
return (Integer) field.get(operation);
}
private ContentValues operationGetValuesBackReferences(ContentProviderOperation operation)
throws NoSuchFieldException, IllegalAccessException {
final Field field = CLASS_OPERATION.getDeclaredField("mValuesBackReferences");
field.setAccessible(true);
return (ContentValues) field.get(operation);
}
private Map<Integer, Integer> operationGetSelectionArgsBackReferences(
ContentProviderOperation operation)
throws NoSuchFieldException, IllegalAccessException {
final Field field = CLASS_OPERATION.getDeclaredField("mSelectionArgsBackReferences");
field.setAccessible(true);
return (Map<Integer, Integer>) field.get(operation);
}
public void testParcelingResult() {
Parcel parcel = Parcel.obtain();
ContentProviderResult result1;
ContentProviderResult result2;
try {
result1 = new ContentProviderResult(Uri.parse("content://goo/bar"));
result1.writeToParcel(parcel, 0);
parcel.setDataPosition(0);
result2 = ContentProviderResult.CREATOR.createFromParcel(parcel);
assertEquals("content://goo/bar", result2.uri.toString());
assertNull(result2.count);
} finally {
parcel.recycle();
}
parcel = Parcel.obtain();
try {
result1 = new ContentProviderResult(42);
result1.writeToParcel(parcel, 0);
parcel.setDataPosition(0);
result2 = ContentProviderResult.CREATOR.createFromParcel(parcel);
assertEquals(Integer.valueOf(42), result2.count);
assertNull(result2.uri);
} finally {
parcel.recycle();
}
}
static class TestContentProvider extends ContentProvider {
public boolean onCreate() {
throw new UnsupportedOperationException();
}
public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
String sortOrder) {
throw new UnsupportedOperationException();
}
public String getType(Uri uri) {
throw new UnsupportedOperationException();
}
public Uri insert(Uri uri, ContentValues values) {
throw new UnsupportedOperationException();
}
public int delete(Uri uri, String selection, String[] selectionArgs) {
throw new UnsupportedOperationException();
}
public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
throw new UnsupportedOperationException();
}
}
}
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