SQLite Android Bindings
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Overview
Comment:Add modified versions of some of the test files from the Android Compatibility Test Suite (https://android.googlesource.com/platform/cts/).
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | experimental
Files: files | file ages | folders
SHA1: 2574c498b9a320bc320d92aa7b1df600757838b5
User & Date: dan 2017-11-13 21:02:26
Context
2017-11-14
21:13
Add further cts tests to this project. check-in: 09d6816449 user: dan tags: experimental
2017-11-13
21:02
Add modified versions of some of the test files from the Android Compatibility Test Suite (https://android.googlesource.com/platform/cts/). check-in: 2574c498b9 user: dan tags: experimental
18:48
Upgrade to gradle 3.0. Remove ApplicationTest class (not required?). check-in: df18f25465 user: dan tags: experimental
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Added sqlite3/src/androidTest/java/org/sqlite/database/SQLiteAbortExceptionTest.java.

























































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/*
 * 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 org.sqlite.database;

import org.sqlite.database.sqlite.SQLiteAbortException;
import android.test.AndroidTestCase;

public class SQLiteAbortExceptionTest extends AndroidTestCase {
    public void testConstructor() {
        new SQLiteAbortException();

        new SQLiteAbortException("error");
    }
}

Added sqlite3/src/androidTest/java/org/sqlite/database/SQLiteClosableTest.java.























































































































































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/*
 * 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 org.sqlite.database;

import org.sqlite.database.sqlite.SQLiteClosable;
import android.test.AndroidTestCase;

public class SQLiteClosableTest extends AndroidTestCase {
    private class MockSQLiteClosable extends SQLiteClosable {
        private boolean mOnAllReferencesReleasedCalled = false;
        private boolean mOnAllReferencesReleasedFromContainerCalled = false;

        @Override
        protected void onAllReferencesReleased() {
            mOnAllReferencesReleasedCalled = true;
        }

        protected void onAllReferencesReleasedFromContainer() {
            mOnAllReferencesReleasedFromContainerCalled = true;
        }

        public boolean isOnAllReferencesReleasedCalled() {
            return mOnAllReferencesReleasedCalled;
        }

        public boolean isOnAllReferencesReleasedFromContainerCalled() {
            return mOnAllReferencesReleasedFromContainerCalled;
        }
    }

    public void testAcquireReference() {
        MockSQLiteClosable closable = new MockSQLiteClosable();

        closable.acquireReference();
        closable.releaseReference();

        assertFalse(closable.isOnAllReferencesReleasedCalled());
        closable.releaseReference();
        // the reference count is 0 now.
        assertTrue(closable.isOnAllReferencesReleasedCalled());

        try {
            closable.acquireReference();
            fail("should throw IllegalStateException.");
        } catch (IllegalStateException e) {
        }
    }

    public void testReleaseReferenceFromContainer() {
        MockSQLiteClosable closable = new MockSQLiteClosable();

        closable.acquireReference();
        closable.releaseReferenceFromContainer();

        // the reference count is 1 now.
        assertFalse(closable.isOnAllReferencesReleasedFromContainerCalled());
        closable.releaseReferenceFromContainer();
        // the reference count is 0 now.
        assertTrue(closable.isOnAllReferencesReleasedFromContainerCalled());
    }
}

Added sqlite3/src/androidTest/java/org/sqlite/database/SQLiteCursorTest.java.

































































































































































































































































































































































































































































































































































































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/*
 * 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 org.sqlite.database;


import android.content.Context;
import android.database.AbstractCursor;
import android.database.Cursor;
import android.database.CursorWindow;
import android.database.DataSetObserver;
import android.database.StaleDataException;
import org.sqlite.database.sqlite.SQLiteCursor;
import org.sqlite.database.sqlite.SQLiteDatabase;
import org.sqlite.database.sqlite.SQLiteDirectCursorDriver;
import android.test.AndroidTestCase;

import java.io.File;
import java.util.Arrays;

/**
 * Test {@link AbstractCursor}.
 */
public class SQLiteCursorTest extends AndroidTestCase {
    private SQLiteDatabase mDatabase;
    private static final String[] COLUMNS = new String[] { "_id", "number_1", "number_2" };
    private static final String TABLE_NAME = "test";
    private static final String TABLE_COLUMNS = " number_1 INTEGER, number_2 INTEGER";
    private static final int DEFAULT_TABLE_VALUE_BEGINS = 1;
    private static final int TEST_COUNT = 10;
    private static final String TEST_SQL = "SELECT * FROM test ORDER BY number_1";
    private static final String DATABASE_FILE = "database_test.db";

    @Override
    protected void setUp() throws Exception {
        super.setUp();
        System.loadLibrary("sqliteX");
        File f = mContext.getDatabasePath(MyHelper.DATABASE_NAME);
        f.mkdirs();
        if (f.exists()) { f.delete(); }
        mDatabase = SQLiteDatabase.openOrCreateDatabase(f, null);
        createTable(TABLE_NAME, TABLE_COLUMNS);
        addValuesIntoTable(TABLE_NAME, DEFAULT_TABLE_VALUE_BEGINS, TEST_COUNT);
    }

    @Override
    protected void tearDown() throws Exception {
        mDatabase.close();
        getContext().deleteDatabase(DATABASE_FILE);
        super.tearDown();
    }

    public void testConstructor() {
        SQLiteDirectCursorDriver cursorDriver = new SQLiteDirectCursorDriver(mDatabase,
                TEST_SQL, TABLE_NAME, null);
        try {
            new SQLiteCursor(mDatabase, cursorDriver, TABLE_NAME, null);
            fail("constructor didn't throw IllegalArgumentException when SQLiteQuery is null");
        } catch (IllegalArgumentException e) {
        }

        // get SQLiteCursor by querying database
        SQLiteCursor cursor = getCursor();
        assertNotNull(cursor);
    }

    public void testClose() {
        SQLiteCursor cursor = getCursor();
        assertTrue(cursor.moveToFirst());
        assertFalse(cursor.isClosed());
        assertTrue(cursor.requery());
        cursor.close();
        assertFalse(cursor.requery());
        try {
            cursor.moveToFirst();
            fail("moveToFirst didn't throw IllegalStateException after closed.");
        } catch (IllegalStateException e) {
        }
        assertTrue(cursor.isClosed());
    }

    public void testRegisterDataSetObserver() {
        SQLiteCursor cursor = getCursor();
        MockCursorWindow cursorWindow = new MockCursorWindow(false);

        MockObserver observer = new MockObserver();

        cursor.setWindow(cursorWindow);
        // Before registering, observer can't be notified.
        assertFalse(observer.hasInvalidated());
        cursor.moveToLast();
        assertFalse(cursorWindow.isClosed());
        cursor.deactivate();
        assertFalse(observer.hasInvalidated());
        // deactivate() will close the CursorWindow
        assertTrue(cursorWindow.isClosed());

        // test registering DataSetObserver
        assertTrue(cursor.requery());
        cursor.registerDataSetObserver(observer);
        assertFalse(observer.hasInvalidated());
        cursor.moveToLast();
        assertEquals(TEST_COUNT, cursor.getInt(1));
        cursor.deactivate();
        // deactivate method can invoke invalidate() method, can be observed by DataSetObserver.
        assertTrue(observer.hasInvalidated());

        try {
            cursor.getInt(1);
            fail("After deactivating, cursor cannot execute getting value operations.");
        } catch (StaleDataException e) {
        }

        assertTrue(cursor.requery());
        cursor.moveToLast();
        assertEquals(TEST_COUNT, cursor.getInt(1));

        // can't register a same observer twice.
        try {
            cursor.registerDataSetObserver(observer);
            fail("didn't throw IllegalStateException when register existed observer");
        } catch (IllegalStateException e) {
        }

        // after unregistering, observer can't be notified.
        cursor.unregisterDataSetObserver(observer);
        observer.resetStatus();
        assertFalse(observer.hasInvalidated());
        cursor.deactivate();
        assertFalse(observer.hasInvalidated());
    }

    public void testRequery() {
        final String DELETE = "DELETE FROM " + TABLE_NAME + " WHERE number_1 =";
        final String DELETE_1 = DELETE + "1;";
        final String DELETE_2 = DELETE + "2;";

        mDatabase.execSQL(DELETE_1);
        // when cursor is created, it refreshes CursorWindow and populates cursor count
        SQLiteCursor cursor = getCursor();
        MockObserver observer = new MockObserver();
        cursor.registerDataSetObserver(observer);
        assertEquals(TEST_COUNT - 1, cursor.getCount());
        assertFalse(observer.hasChanged());

        mDatabase.execSQL(DELETE_2);
        // when getCount() has invoked once, it can no longer refresh CursorWindow.
        assertEquals(TEST_COUNT - 1, cursor.getCount());

        assertTrue(cursor.requery());
        // only after requery, getCount can get most up-to-date counting info now.
        assertEquals(TEST_COUNT - 2, cursor.getCount());
        assertTrue(observer.hasChanged());
    }

    public void testRequery2() {
        mDatabase.disableWriteAheadLogging();
        mDatabase.execSQL("create table testRequery2 (i int);");
        mDatabase.execSQL("insert into testRequery2 values(1);");
        mDatabase.execSQL("insert into testRequery2 values(2);");
        Cursor c = mDatabase.rawQuery("select * from testRequery2 order by i", null);
        assertEquals(2, c.getCount());
        assertTrue(c.moveToFirst());
        assertEquals(1, c.getInt(0));
        assertTrue(c.moveToNext());
        assertEquals(2, c.getInt(0));
        // add more data to the table and requery
        mDatabase.execSQL("insert into testRequery2 values(3);");
        assertTrue(c.requery());
        assertEquals(3, c.getCount());
        assertTrue(c.moveToFirst());
        assertEquals(1, c.getInt(0));
        assertTrue(c.moveToNext());
        assertEquals(2, c.getInt(0));
        assertTrue(c.moveToNext());
        assertEquals(3, c.getInt(0));
        // close the database and see if requery throws an exception
        mDatabase.close();
        assertFalse(c.requery());
    }

    public void testGetColumnIndex() {
        SQLiteCursor cursor = getCursor();

        for (int i = 0; i < COLUMNS.length; i++) {
            assertEquals(i, cursor.getColumnIndex(COLUMNS[i]));
        }

        assertTrue(Arrays.equals(COLUMNS, cursor.getColumnNames()));
    }

    public void testSetSelectionArguments() {
        final String SELECTION = "_id > ?";
        int TEST_ARG1 = 2;
        int TEST_ARG2 = 5;
        SQLiteCursor cursor = (SQLiteCursor) mDatabase.query(TABLE_NAME, null, SELECTION,
                new String[] { Integer.toString(TEST_ARG1) }, null, null, null);
        assertEquals(TEST_COUNT - TEST_ARG1, cursor.getCount());
        cursor.setSelectionArguments(new String[] { Integer.toString(TEST_ARG2) });
        cursor.requery();
        assertEquals(TEST_COUNT - TEST_ARG2, cursor.getCount());
    }

    public void testOnMove() {
        // Do not test this API. It is callback which:
        // 1. The callback mechanism has been tested in super class
        // 2. The functionality is implementation details, no need to test
    }

    private void createTable(String tableName, String columnNames) {
        String sql = "Create TABLE " + tableName + " (_id INTEGER PRIMARY KEY, "
                + columnNames + " );";
        mDatabase.execSQL(sql);
    }

    private void addValuesIntoTable(String tableName, int start, int end) {
        for (int i = start; i <= end; i++) {
            mDatabase.execSQL("INSERT INTO " + tableName + "(number_1) VALUES ('" + i + "');");
        }
    }

    private SQLiteCursor getCursor() {
        SQLiteCursor cursor = (SQLiteCursor) mDatabase.query(TABLE_NAME, null, null,
                null, null, null, null);
        return cursor;
    }

    private class MockObserver extends DataSetObserver {
        private boolean mHasChanged = false;
        private boolean mHasInvalidated = false;

        @Override
        public void onChanged() {
            super.onChanged();
            mHasChanged = true;
        }

        @Override
        public void onInvalidated() {
            super.onInvalidated();
            mHasInvalidated = true;
        }

        protected void resetStatus() {
            mHasChanged = false;
            mHasInvalidated = false;
        }

        protected boolean hasChanged() {
            return mHasChanged;
        }

        protected boolean hasInvalidated () {
            return mHasInvalidated;
        }
    }

    private class MockCursorWindow extends CursorWindow {
        private boolean mIsClosed = false;

        public MockCursorWindow(boolean localWindow) {
            super(localWindow);
        }

        @Override
        public void close() {
            super.close();
            mIsClosed = true;
        }

        public boolean isClosed() {
            return mIsClosed;
        }
    }
}

Added sqlite3/src/androidTest/java/org/sqlite/database/SQLiteFtsTest.java.

































































































































































































































































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/*
 * 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 org.sqlite.database;

import android.content.ContentValues;
import android.content.Context;
import android.content.res.Resources;
import android.database.Cursor;
import org.sqlite.database.sqlite.SQLiteDatabase;
import android.test.AndroidTestCase;

import java.io.File;

/**
 * Tests to verify FTS3/4 SQLite support.
 */
public class SQLiteFtsTest extends AndroidTestCase {

    private static final String TEST_TABLE = "cts_fts";

    private static final String[] TEST_CONTENT = {
            "Any sufficiently advanced TECHnology is indistinguishable from magic.",
            "Those who would give up Essential Liberty to purchase a little Temporary Safety, deserve neither Liberty nor Safety.",
            "It is poor civic hygiene to install technologies that could someday facilitate a police state.",
    };

    private SQLiteDatabase mDatabase;

    @Override
    public void setUp() throws Exception {
        super.setUp();
        System.loadLibrary("sqliteX");
        File f = mContext.getDatabasePath(MyHelper.DATABASE_NAME);
        f.mkdirs();
        if (f.exists()) { f.delete(); }
        mDatabase = SQLiteDatabase.openOrCreateDatabase(f,null);
    }

    @Override
    public void tearDown() throws Exception {
        try {
            final String path = mDatabase.getPath();
            mDatabase.close();
            SQLiteDatabase.deleteDatabase(new File(path));
        } finally {
            super.tearDown();
        }
    }

    public void testFts3Porter() throws Exception {
        prepareFtsTable(TEST_TABLE, "fts3", "tokenize=porter");

        // Porter should include stemmed words
        final Cursor cursor = queryFtsTable(TEST_TABLE, "technology");
        try {
            assertEquals(2, cursor.getCount());
            cursor.moveToPosition(0);
            assertTrue(cursor.getString(0).contains(">TECHnology<"));
            cursor.moveToPosition(1);
            assertTrue(cursor.getString(0).contains(">technologies<"));
        } finally {
            cursor.close();
        }
    }

    public void testFts3Simple() throws Exception {
        prepareFtsTable(TEST_TABLE, "fts3", "tokenize=simple");

        // Simple shouldn't include stemmed words
        final Cursor cursor = queryFtsTable(TEST_TABLE, "technology");
        try {
            assertEquals(1, cursor.getCount());
            cursor.moveToPosition(0);
            assertTrue(cursor.getString(0).contains(">TECHnology<"));
        } finally {
            cursor.close();
        }
    }

    public void testFts4Simple() throws Exception {
        prepareFtsTable(TEST_TABLE, "fts4", "tokenize=simple");

        // Simple shouldn't include stemmed words
        final Cursor cursor = queryFtsTable(TEST_TABLE, "technology");
        try {
            assertEquals(1, cursor.getCount());
            cursor.moveToPosition(0);
            assertTrue(cursor.getString(0).contains(">TECHnology<"));
        } finally {
            cursor.close();
        }
    }

    private void prepareFtsTable(String table, String ftsType, String options)
            throws Exception {
        mDatabase.execSQL(
                "CREATE VIRTUAL TABLE " + table + " USING " + ftsType
                + "(content TEXT, " + options + ");");

        final Resources res = getContext().getResources();
        final ContentValues values = new ContentValues();
        for (String content : TEST_CONTENT) {
            values.clear();
            values.put("content", content);
            mDatabase.insert(table, null, values);
        }
    }

    private Cursor queryFtsTable(String table, String match) {
        return mDatabase.query(table, new String[] { "snippet(" + table + ")" },
                "content MATCH ?", new String[] { match },
                null, null, "rowid ASC");
    }
}

Added sqlite3/src/androidTest/java/org/sqlite/database/SQLiteStatementTest.java.





































































































































































































































































































































































































































































































































































































































































































































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/*
 * 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 org.sqlite.database;


import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.DatabaseUtils;
import org.sqlite.database.SQLException;
import org.sqlite.database.sqlite.SQLiteDatabase;
import org.sqlite.database.sqlite.SQLiteDoneException;
import org.sqlite.database.sqlite.SQLiteStatement;
import android.os.ParcelFileDescriptor;
import android.support.test.filters.Suppress;
import android.test.AndroidTestCase;
import android.test.MoreAsserts;

import java.io.IOException;
import java.io.InputStream;
import java.io.File;

public class SQLiteStatementTest extends AndroidTestCase {
    private static final String STRING1 = "this is a test";
    private static final String STRING2 = "another test";

    private static final byte[][] BLOBS = new byte [][] {
        parseBlob("86FADCF1A820666AEBD0789F47932151A2EF734269E8AC4E39630AB60519DFD8"),
        new byte[1],
        null,
        parseBlob("00"),
        parseBlob("FF"),
        parseBlob("D7B500FECF25F7A4D83BF823D3858690790F2526013DE6CAE9A69170E2A1E47238"),
    };

    private static final String DATABASE_NAME = "database_test.db";

    private static final int CURRENT_DATABASE_VERSION = 42;
    private SQLiteDatabase mDatabase;

    @Override
    protected void setUp() throws Exception {
        super.setUp();
        System.loadLibrary("sqliteX");
        getContext().deleteDatabase(DATABASE_NAME);
        File f = mContext.getDatabasePath(DATABASE_NAME);
        f.mkdirs();
        if (f.exists()) { f.delete(); }
        mDatabase = SQLiteDatabase.openOrCreateDatabase(f, null);
        assertNotNull(mDatabase);
        mDatabase.setVersion(CURRENT_DATABASE_VERSION);
    }

    @Override
    protected void tearDown() throws Exception {
        mDatabase.close();
        getContext().deleteDatabase(DATABASE_NAME);
        super.tearDown();
    }

    private void populateDefaultTable() {
        mDatabase.execSQL("CREATE TABLE test (_id INTEGER PRIMARY KEY, data TEXT);");
    }

    private void populateBlobTable() {
        mDatabase.execSQL("CREATE TABLE blob_test (_id INTEGER PRIMARY KEY, data BLOB)");
        for (int i = 0; i < BLOBS.length; i++) {
            ContentValues values = new ContentValues();
            values.put("_id", i);
            values.put("data", BLOBS[i]);
            mDatabase.insert("blob_test", null, values);
        }
    }

    public void testExecute() {
        mDatabase.disableWriteAheadLogging();
        populateDefaultTable();

        assertEquals(0, ExtraUtils.longForQuery(mDatabase, "select count(*) from test", null));

        // test update
        // insert 2 rows and then update them.
        SQLiteStatement statement1 = mDatabase.compileStatement(
                "INSERT INTO test (data) VALUES ('" + STRING2 + "')");
        assertEquals(1, statement1.executeInsert());
        assertEquals(2, statement1.executeInsert());
        SQLiteStatement statement2 =
                mDatabase.compileStatement("UPDATE test set data = 'a' WHERE _id > 0");
        assertEquals(2, statement2.executeUpdateDelete());
        statement2.close();
        // should still have 2 rows in the table
        assertEquals(2, ExtraUtils.longForQuery(mDatabase, "select count(*) from test", null));

        // test delete
        // insert 2 more rows and delete 3 of them
        assertEquals(3, statement1.executeInsert());
        assertEquals(4, statement1.executeInsert());
        statement1.close();
        statement2 = mDatabase.compileStatement("DELETE from test WHERE _id < 4");
        assertEquals(3, statement2.executeUpdateDelete());
        statement2.close();
        // should still have 1 row1 in the table
        assertEquals(1, ExtraUtils.longForQuery(mDatabase, "select count(*) from test", null));

        // if the SQL statement is something that causes rows of data to
        // be returned, executeUpdateDelete() (and execute()) throw an exception.
        statement2 = mDatabase.compileStatement("SELECT count(*) FROM test");
        try {
            statement2.executeUpdateDelete();
            fail("exception expected");
        } catch (SQLException e) {
            // expected
        } finally {
            statement2.close();
        }
    }

    public void testExecuteInsert() {
        populateDefaultTable();

        Cursor c = mDatabase.query("test", null, null, null, null, null, null);
        assertEquals(0, c.getCount());

        // test insert
        SQLiteStatement statement = mDatabase.compileStatement(
                "INSERT INTO test (data) VALUES ('" + STRING2 + "')");
        assertEquals(1, statement.executeInsert());
        statement.close();

        // try to insert another row with the same id. last inserted rowid should be -1
        statement = mDatabase.compileStatement("insert or ignore into test values(1, 1);");
        assertEquals(-1, statement.executeInsert());
        statement.close();

        c = mDatabase.query("test", null, null, null, null, null, null);
        assertEquals(1, c.getCount());

        c.moveToFirst();
        assertEquals(STRING2, c.getString(c.getColumnIndex("data")));
        c.close();

        // if the sql statement is something that causes rows of data to
        // be returned, executeInsert() throws an exception
        statement = mDatabase.compileStatement(
                "SELECT * FROM test WHERE data=\"" + STRING2 + "\"");
        try {
            statement.executeInsert();
            fail("exception expected");
        } catch (SQLException e) {
            // expected
        } finally {
            statement.close();

        }
    }

    public void testSimpleQueryForLong() {
        mDatabase.execSQL("CREATE TABLE test (num INTEGER NOT NULL, str TEXT NOT NULL);");
        mDatabase.execSQL("INSERT INTO test VALUES (1234, 'hello');");
        SQLiteStatement statement =
                mDatabase.compileStatement("SELECT num FROM test WHERE str = ?");

        // test query long
        statement.bindString(1, "hello");
        long value = statement.simpleQueryForLong();
        assertEquals(1234, value);

        // test query returns zero rows
        statement.bindString(1, "world");

        try {
            statement.simpleQueryForLong();
            fail("There should be a SQLiteDoneException thrown out.");
        } catch (SQLiteDoneException e) {
            // expected.
        }

        statement.close();
    }

    public void testSimpleQueryForString() {
        mDatabase.execSQL("CREATE TABLE test (num INTEGER NOT NULL, str TEXT NOT NULL);");
        mDatabase.execSQL("INSERT INTO test VALUES (1234, 'hello');");
        SQLiteStatement statement =
                mDatabase.compileStatement("SELECT str FROM test WHERE num = ?");

        // test query String
        statement.bindLong(1, 1234);
        String value = statement.simpleQueryForString();
        assertEquals("hello", value);

        // test query returns zero rows
        statement.bindLong(1, 5678);

        try {
            statement.simpleQueryForString();
            fail("There should be a SQLiteDoneException thrown out.");
        } catch (SQLiteDoneException e) {
            // expected.
        }

        statement.close();
    }

    @Suppress
    public void testSimpleQueryForBlobFileDescriptorSuccessNormal() throws IOException {
        doTestSimpleQueryForBlobFileDescriptorSuccess(0);
    }

    @Suppress
    public void testSimpleQueryForBlobFileDescriptorSuccessEmpty() throws IOException {
        doTestSimpleQueryForBlobFileDescriptorSuccess(1);
    }

    @Suppress
    public void testSimpleQueryForBlobFileDescriptorSuccessNull() {
        populateBlobTable();

        String sql = "SELECT data FROM blob_test WHERE _id = " + 2;
        SQLiteStatement stm = mDatabase.compileStatement(sql);
        assertNull(stm.simpleQueryForBlobFileDescriptor());
    }

    @Suppress
    public void testSimpleQueryForBlobFileDescriptorSuccess00() throws IOException {
        doTestSimpleQueryForBlobFileDescriptorSuccess(3);
    }

    @Suppress
    public void testSimpleQueryForBlobFileDescriptorSuccessFF() throws IOException {
        doTestSimpleQueryForBlobFileDescriptorSuccess(4);
    }

    @Suppress
    public void testSimpleQueryForBlobFileDescriptorSuccessEmbeddedNul() throws IOException {
        doTestSimpleQueryForBlobFileDescriptorSuccess(5);
    }

    @Suppress
    private void doTestSimpleQueryForBlobFileDescriptorSuccess(int i) throws IOException {
        populateBlobTable();

        String sql = "SELECT data FROM blob_test WHERE _id = " + i;
        SQLiteStatement stm = mDatabase.compileStatement(sql);
        ParcelFileDescriptor fd = stm.simpleQueryForBlobFileDescriptor();
        assertFileDescriptorContent(BLOBS[i], fd);
    }

    @Suppress
    public void testSimpleQueryForBlobFileDescriptorSuccessParam() throws IOException {
        populateBlobTable();

        String sql = "SELECT data FROM blob_test WHERE _id = ?";
        SQLiteStatement stm = mDatabase.compileStatement(sql);
        stm.bindLong(1, 0);
        ParcelFileDescriptor fd = stm.simpleQueryForBlobFileDescriptor();
        assertFileDescriptorContent(BLOBS[0], fd);
    }

    public void testGetBlobFailureNoParam() throws Exception {
        populateBlobTable();

        String sql = "SELECT data FROM blob_test WHERE _id = 100";
        SQLiteStatement stm = mDatabase.compileStatement(sql);
        ParcelFileDescriptor fd = null;
        SQLiteDoneException expectedException = null;
        try {
            fd = stm.simpleQueryForBlobFileDescriptor();
        } catch (SQLiteDoneException ex) {
            expectedException = ex;
        } finally {
            if (fd != null) {
                fd.close();
                fd = null;
            }
        }
        assertNotNull("Should have thrown SQLiteDoneException", expectedException);
    }

    public void testGetBlobFailureParam() throws Exception {
        populateBlobTable();

        String sql = "SELECT data FROM blob_test WHERE _id = ?";
        SQLiteStatement stm = mDatabase.compileStatement(sql);
        stm.bindLong(1, 100);
        ParcelFileDescriptor fd = null;
        SQLiteDoneException expectedException = null;
        try {
            fd = stm.simpleQueryForBlobFileDescriptor();
        } catch (SQLiteDoneException ex) {
            expectedException = ex;
        } finally {
            if (fd != null) {
                fd.close();
                fd = null;
            }
        }
        assertNotNull("Should have thrown SQLiteDoneException", expectedException);
    }

    /*
     * Convert string of hex digits to byte array.
     * Results are undefined for poorly formed string.
     *
     * @param src hex string
     */
    private static byte[] parseBlob(String src) {
        int len = src.length();
        byte[] result = new byte[len / 2];

        for (int i = 0; i < len/2; i++) {
            int val;
            char c1 = src.charAt(i*2);
            char c2 = src.charAt(i*2+1);
            int val1 = Character.digit(c1, 16);
            int val2 = Character.digit(c2, 16);
            val = (val1 << 4) | val2;
            result[i] = (byte)val;
        }
        return result;
    }

    private static void assertFileDescriptorContent(byte[] expected, ParcelFileDescriptor fd)
            throws IOException {
        assertInputStreamContent(expected, new ParcelFileDescriptor.AutoCloseInputStream(fd));
    }

    private static void assertInputStreamContent(byte[] expected, InputStream is)
            throws IOException {
        try {
            byte[] observed = new byte[expected.length];
            int count = is.read(observed);
            assertEquals(expected.length, count);
            assertEquals(-1, is.read());
            MoreAsserts.assertEquals(expected, observed);
        } finally {
            is.close();
        }
    }
}