| /* |
| * Copyright (C) 2017 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 androidx.room |
| |
| import com.google.common.truth.Truth.assertThat |
| import java.util.Arrays |
| import kotlin.test.assertNull |
| import org.junit.Before |
| import org.junit.Test |
| import org.junit.runner.RunWith |
| import org.junit.runners.JUnit4 |
| |
| @RunWith(JUnit4::class) |
| class ObservedTableTrackerTest { |
| private lateinit var mTracker: InvalidationTracker.ObservedTableTracker |
| @Before |
| fun setup() { |
| mTracker = InvalidationTracker.ObservedTableTracker(TABLE_COUNT) |
| } |
| |
| @Test |
| fun basicAdd() { |
| mTracker.onAdded(2, 3) |
| assertThat( |
| mTracker.getTablesToSync() |
| ).isEqualTo( |
| createResponse( |
| 2, |
| InvalidationTracker.ObservedTableTracker.ADD, |
| 3, |
| InvalidationTracker.ObservedTableTracker.ADD |
| ) |
| ) |
| } |
| |
| @Test |
| fun basicRemove() { |
| initState(2, 3) |
| mTracker.onRemoved(3) |
| assertThat( |
| mTracker.getTablesToSync() |
| ).isEqualTo( |
| createResponse(3, InvalidationTracker.ObservedTableTracker.REMOVE) |
| ) |
| } |
| |
| @Test |
| fun noChange() { |
| initState(1, 3) |
| mTracker.onAdded(3) |
| assertNull( |
| mTracker.getTablesToSync() |
| ) |
| } |
| |
| @Test |
| fun multipleAdditionsDeletions() { |
| initState(2, 4) |
| mTracker.onAdded(2) |
| assertNull( |
| mTracker.getTablesToSync() |
| ) |
| mTracker.onAdded(2, 4) |
| assertNull( |
| mTracker.getTablesToSync() |
| ) |
| mTracker.onRemoved(2) |
| assertNull( |
| mTracker.getTablesToSync() |
| ) |
| mTracker.onRemoved(2, 4) |
| assertNull( |
| mTracker.getTablesToSync() |
| ) |
| mTracker.onAdded(1, 3) |
| mTracker.onRemoved(2, 4) |
| assertThat( |
| mTracker.getTablesToSync() |
| ).isEqualTo( |
| createResponse( |
| 1, |
| InvalidationTracker.ObservedTableTracker.ADD, |
| 2, |
| InvalidationTracker.ObservedTableTracker.REMOVE, |
| 3, |
| InvalidationTracker.ObservedTableTracker.ADD, |
| 4, |
| InvalidationTracker.ObservedTableTracker.REMOVE |
| ) |
| ) |
| } |
| |
| private fun initState(vararg tableIds: Int) { |
| mTracker.onAdded(*tableIds) |
| mTracker.getTablesToSync() |
| } |
| |
| companion object { |
| private const val TABLE_COUNT = 5 |
| private fun createResponse(vararg tuples: Int): IntArray { |
| val result = IntArray(TABLE_COUNT) |
| Arrays.fill(result, InvalidationTracker.ObservedTableTracker.NO_OP) |
| var i = 0 |
| while (i < tuples.size) { |
| result[tuples[i]] = tuples[i + 1] |
| i += 2 |
| } |
| return result |
| } |
| } |
| } |