/*
 * Copyright (c) 2024 Meshtastic LLC
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

package com.geeksville.mesh

import androidx.room.Room
import androidx.room.testing.MigrationTestHelper
import androidx.test.ext.junit.runners.AndroidJUnit4
import androidx.test.platform.app.InstrumentationRegistry
import com.geeksville.mesh.database.MeshtasticDatabase
import org.junit.Rule
import org.junit.Test
import org.junit.runner.RunWith
import java.io.IOException

@RunWith(AndroidJUnit4::class)
class MeshtasticDatabaseTest {

    companion object {
        private const val TEST_DB = "migration-test"
    }

    @get:Rule
    val helper: MigrationTestHelper = MigrationTestHelper(
        InstrumentationRegistry.getInstrumentation(),
        MeshtasticDatabase::class.java,
    )

    @Test
    @Throws(IOException::class)
    fun migrateAll() {
        // Create earliest version of the database.
        helper.createDatabase(TEST_DB, 3).apply {
            close()
        }

        // Open latest version of the database. Room validates the schema
        // once all migrations execute.
        Room.databaseBuilder(
            InstrumentationRegistry.getInstrumentation().targetContext,
            MeshtasticDatabase::class.java,
            TEST_DB
        ).build().apply {
            openHelper.writableDatabase.close()
        }
    }
}