Merge "Cache mechanism for Storage page" into tm-dev

tests/robotests/src/com/android/settings/deviceinfo/storage/StorageCacheHelperTest.java

@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2022 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 com.android.settings.deviceinfo.storage;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import android.content.Context;
+import android.os.UserHandle;
+
+import androidx.test.core.app.ApplicationProvider;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+@RunWith(AndroidJUnit4.class)
+public class StorageCacheHelperTest {
+    private static final long FAKE_IMAGES_SIZE = 7000L;
+    private static final long FAKE_VIDEOS_SIZE = 8900L;
+    private static final long FAKE_AUDIO_SIZE = 3500L;
+    private static final long FAKE_APPS_SIZE = 4000L;
+    private static final long FAKE_GAMES_SIZE = 5000L;
+    private static final long FAKE_DOCS_SIZE = 1500L;
+    private static final long FAKE_TRASH_SIZE = 500L;
+    private static final long FAKE_SYSTEM_SIZE = 2300L;
+    private static final long FAKE_TOTAL_SIZE = 256000L;
+    private static final long FAKE_USED_SIZE = 50000L;
+
+    private Context mContext;
+    private StorageCacheHelper mHelper;
+
+    @Before
+    public void setUp() {
+        mContext = ApplicationProvider.getApplicationContext();
+        mHelper = new StorageCacheHelper(mContext, UserHandle.myUserId());
+    }
+
+    @Test
+    public void hasCachedSizeInfo_noCacheData_shouldReturnFalse() {
+        assertThat(mHelper.hasCachedSizeInfo()).isFalse();
+    }
+
+    @Test
+    public void hasCachedSizeInfo_hasCacheData_shouldReturnTrue() {
+        mHelper.cacheSizeInfo(getFakeStorageCache());
+
+        assertThat(mHelper.hasCachedSizeInfo()).isTrue();
+    }
+
+    @Test
+    public void cacheSizeInfo_shouldSaveToSharedPreference() {
+        mHelper.cacheSizeInfo(getFakeStorageCache());
+
+        StorageCacheHelper.StorageCache storageCache = mHelper.retrieveCachedSize();
+
+        assertThat(storageCache.imagesSize).isEqualTo(FAKE_IMAGES_SIZE);
+        assertThat(storageCache.totalSize).isEqualTo(0);
+    }
+
+    @Test
+    public void cacheTotalSizeAndUsedSize_shouldSaveToSharedPreference() {
+        mHelper.cacheTotalSizeAndUsedSize(FAKE_TOTAL_SIZE, FAKE_USED_SIZE);
+
+        StorageCacheHelper.StorageCache storageCache = mHelper.retrieveCachedSize();
+
+        assertThat(storageCache.totalSize).isEqualTo(FAKE_TOTAL_SIZE);
+        assertThat(storageCache.usedSize).isEqualTo(FAKE_USED_SIZE);
+    }
+
+    private StorageCacheHelper.StorageCache getFakeStorageCache() {
+        StorageCacheHelper.StorageCache result = new StorageCacheHelper.StorageCache();
+        result.trashSize = FAKE_TRASH_SIZE;
+        result.systemSize = FAKE_SYSTEM_SIZE;
+        result.imagesSize = FAKE_IMAGES_SIZE;
+        result.documentsAndOtherSize = FAKE_DOCS_SIZE;
+        result.audioSize = FAKE_AUDIO_SIZE;
+        result.gamesSize = FAKE_GAMES_SIZE;
+        result.videosSize = FAKE_VIDEOS_SIZE;
+        result.allAppsExceptGamesSize = FAKE_APPS_SIZE;
+        return result;
+    }
+}