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.file.openers; 17 18 import static com.google.common.truth.Truth.assertThat; 19 import static org.junit.Assert.assertThrows; 20 21 import android.net.Uri; 22 import com.google.android.libraries.mobiledatadownload.file.SynchronousFileStorage; 23 import com.google.android.libraries.mobiledatadownload.file.backends.JavaFileBackend; 24 import com.google.android.libraries.mobiledatadownload.file.common.testing.TemporaryUri; 25 import com.google.android.libraries.mobiledatadownload.file.transforms.CompressTransform; 26 import com.google.android.libraries.mobiledatadownload.file.transforms.TransformProtos; 27 import com.google.android.libraries.storage.file.common.testing.TestMessageProto.ExtendableProto; 28 import com.google.android.libraries.storage.file.common.testing.TestMessageProto.ExtensionProto; 29 import com.google.android.libraries.storage.file.common.testing.TestMessageProto.FooProto; 30 import com.google.protobuf.ExtensionRegistryLite; 31 import com.google.protobuf.InvalidProtocolBufferException; 32 import java.util.Arrays; 33 import org.junit.Before; 34 import org.junit.Rule; 35 import org.junit.Test; 36 import org.junit.runner.RunWith; 37 import org.robolectric.RobolectricTestRunner; 38 39 @RunWith(RobolectricTestRunner.class) 40 public final class ReadProtoOpenerTest { 41 42 private static final FooProto TEST_PROTO = 43 FooProto.newBuilder().setText("foo text").setBoolean(true).build(); 44 45 private SynchronousFileStorage storage; 46 47 @Rule public TemporaryUri tmpUri = new TemporaryUri(); 48 49 @Before setUpStorage()50 public void setUpStorage() throws Exception { 51 storage = 52 new SynchronousFileStorage( 53 Arrays.asList(new JavaFileBackend()), Arrays.asList(new CompressTransform())); 54 } 55 56 @Test create_fromMessageParser_returnsOpenerWithCorrectGenericType()57 public void create_fromMessageParser_returnsOpenerWithCorrectGenericType() throws Exception { 58 Uri uri = tmpUri.newUri(); 59 storage.open(uri, WriteProtoOpener.create(TEST_PROTO)); 60 61 ReadProtoOpener<FooProto> opener = ReadProtoOpener.create(FooProto.parser()); 62 FooProto unusedToCheckCompilation = storage.open(uri, opener); 63 64 // Ensure Java compiler can infer the correct generic when Opener is passed in directly 65 unusedToCheckCompilation = storage.open(uri, ReadProtoOpener.create(FooProto.parser())); 66 } 67 68 @Test create_fromMessageInstance_returnsOpenerWithCorrectGenericType()69 public void create_fromMessageInstance_returnsOpenerWithCorrectGenericType() throws Exception { 70 Uri uri = tmpUri.newUri(); 71 storage.open(uri, WriteProtoOpener.create(TEST_PROTO)); 72 73 ReadProtoOpener<FooProto> opener = ReadProtoOpener.create(TEST_PROTO); 74 FooProto unusedToCheckCompilation = storage.open(uri, opener); 75 76 // Ensure Java compiler can infer the correct generic when Opener is passed in directly 77 unusedToCheckCompilation = storage.open(uri, ReadProtoOpener.create(TEST_PROTO)); 78 } 79 80 @Test open_readsFullProtoFromFile()81 public void open_readsFullProtoFromFile() throws Exception { 82 Uri uri = tmpUri.newUri(); 83 storage.open(uri, WriteProtoOpener.create(TEST_PROTO)); 84 85 assertThat(storage.open(uri, ReadProtoOpener.create(FooProto.parser()))).isEqualTo(TEST_PROTO); 86 assertThat(storage.open(uri, ReadProtoOpener.create(TEST_PROTO))).isEqualTo(TEST_PROTO); 87 } 88 89 @Test open_readsEmptyProtoFromFile()90 public void open_readsEmptyProtoFromFile() throws Exception { 91 FooProto emptyProto = FooProto.getDefaultInstance(); 92 Uri uri = tmpUri.newUri(); 93 storage.open(uri, WriteProtoOpener.create(emptyProto)); 94 95 assertThat(storage.open(uri, ReadProtoOpener.create(FooProto.parser()))).isEqualTo(emptyProto); 96 } 97 98 @Test open_invokesTransforms()99 public void open_invokesTransforms() throws Exception { 100 Uri uri = tmpUri.newUriBuilder().withTransform(TransformProtos.DEFAULT_COMPRESS_SPEC).build(); 101 storage.open(uri, WriteProtoOpener.create(TEST_PROTO)); 102 103 assertThat(storage.open(uri, ReadProtoOpener.create(FooProto.parser()))).isEqualTo(TEST_PROTO); 104 } 105 106 @Test open_throwsIOExceptionOnBadParse()107 public void open_throwsIOExceptionOnBadParse() throws Exception { 108 Uri uri = tmpUri.newUri(); 109 storage.open(uri, WriteStringOpener.create("not a proto")); 110 111 assertThrows( 112 InvalidProtocolBufferException.class, 113 () -> storage.open(uri, ReadProtoOpener.create(FooProto.parser()))); 114 } 115 116 @Test withRegistry_readsExtension()117 public void withRegistry_readsExtension() throws Exception { 118 Uri uri = tmpUri.newUri(); 119 ExtendableProto extendable = createProtoWithExtension(); 120 storage.open(uri, WriteProtoOpener.create(extendable)); 121 122 ReadProtoOpener<ExtendableProto> opener = 123 ReadProtoOpener.create(ExtendableProto.parser()) 124 .withExtensionRegistry(ExtensionRegistryLite.getGeneratedRegistry()); 125 126 ExtendableProto actualExtendable = storage.open(uri, opener); 127 assertThat(actualExtendable.hasExtension(ExtensionProto.extension)).isTrue(); 128 assertThat(actualExtendable.getExtension(ExtensionProto.extension).getFoo().getText()) 129 .isEqualTo("foo text"); 130 } 131 132 @Test withOutRegistry_failsToReadsExtension()133 public void withOutRegistry_failsToReadsExtension() throws Exception { 134 Uri uri = tmpUri.newUri(); 135 ExtendableProto extendable = createProtoWithExtension(); 136 storage.open(uri, WriteProtoOpener.create(extendable)); 137 138 ReadProtoOpener<ExtendableProto> opener = ReadProtoOpener.create(ExtendableProto.parser()); 139 140 ExtendableProto actualExtendable = storage.open(uri, opener); 141 assertThat(actualExtendable.hasExtension(ExtensionProto.extension)).isFalse(); 142 } 143 createProtoWithExtension()144 private ExtendableProto createProtoWithExtension() { 145 ExtendableProto extendable = 146 ExtendableProto.newBuilder() 147 .setExtension( 148 ExtensionProto.extension, ExtensionProto.newBuilder().setFoo(TEST_PROTO).build()) 149 .build(); 150 return extendable; 151 } 152 } 153