1 /* 2 * Copyright 2022 Google LLC 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.google.android.libraries.mobiledatadownload.internal.util; 17 18 import static com.google.common.truth.Truth.assertThat; 19 import static org.junit.Assert.assertThrows; 20 21 import android.content.Context; 22 import android.net.Uri; 23 import androidx.test.core.app.ApplicationProvider; 24 import com.google.android.libraries.mobiledatadownload.file.backends.AndroidUri; 25 import com.google.common.base.Optional; 26 import org.junit.Before; 27 import org.junit.Test; 28 import org.junit.runner.RunWith; 29 import org.robolectric.RobolectricTestRunner; 30 31 /** Unit tests for {@link DirectoryUtil}. */ 32 @RunWith(RobolectricTestRunner.class) 33 public class DirectoryUtilTest { 34 35 private Context context; 36 37 @Before setUp()38 public void setUp() { 39 context = ApplicationProvider.getApplicationContext(); 40 } 41 42 @Test getBaseDownloadDirectory()43 public void getBaseDownloadDirectory() { 44 // No instanceid 45 Uri uri = AndroidUri.builder(context).setModule(DirectoryUtil.MDD_STORAGE_MODULE).build(); 46 assertThat(DirectoryUtil.getBaseDownloadDirectory(context, Optional.absent())).isEqualTo(uri); 47 48 // valid instanceid 49 uri = 50 AndroidUri.builder(context) 51 .setModule("instanceid") 52 .setRelativePath(DirectoryUtil.MDD_STORAGE_MODULE) 53 .build(); 54 assertThat(DirectoryUtil.getBaseDownloadDirectory(context, Optional.of("instanceid"))) 55 .isEqualTo(uri); 56 57 // invalid instanceid. InstanceId must be [a-z]. 58 assertThrows( 59 IllegalArgumentException.class, 60 () -> DirectoryUtil.getBaseDownloadDirectory(context, Optional.of("InstanceId"))); 61 } 62 63 @Test buildFilename_buildsFilenameWithInstanceId()64 public void buildFilename_buildsFilenameWithInstanceId() { 65 assertThat(DirectoryUtil.buildFilename("prefix", "suffix", Optional.absent())) 66 .isEqualTo("prefix.suffix"); 67 68 assertThat(DirectoryUtil.buildFilename("prefix", "suffix", Optional.of("myinstance"))) 69 .isEqualTo("prefixmyinstance.suffix"); 70 } 71 } 72