58 lines
1.8 KiB
Java
58 lines
1.8 KiB
Java
/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.test;
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import com.google.android.collect.Sets;
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import android.database.sqlite.SQLiteDatabase;
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import android.database.Cursor;
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import java.util.Set;
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/**
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* A collection of utilities for writing unit tests for database code.
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* @hide pending API council approval
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*/
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public class DatabaseTestUtils {
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/**
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* Compares the schema of two databases and asserts that they are equal.
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* @param expectedDb the db that is known to have the correct schema
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* @param db the db whose schema should be checked
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*/
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public static void assertSchemaEquals(SQLiteDatabase expectedDb, SQLiteDatabase db) {
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Set<String> expectedSchema = getSchemaSet(expectedDb);
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Set<String> schema = getSchemaSet(db);
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MoreAsserts.assertEquals(expectedSchema, schema);
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}
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private static Set<String> getSchemaSet(SQLiteDatabase db) {
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Set<String> schemaSet = Sets.newHashSet();
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Cursor entityCursor = db.rawQuery("SELECT sql FROM sqlite_master", null);
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try {
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while (entityCursor.moveToNext()) {
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String sql = entityCursor.getString(0);
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schemaSet.add(sql);
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}
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} finally {
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entityCursor.close();
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}
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return schemaSet;
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}
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}
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