| /* |
| * Copyright 2022 Google LLC |
| * |
| * 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.google.android.libraries.mobiledatadownload.file.openers; |
| |
| import static com.google.common.truth.Truth.assertThat; |
| import static org.junit.Assert.assertThrows; |
| |
| import android.net.Uri; |
| import com.google.android.libraries.mobiledatadownload.file.SynchronousFileStorage; |
| import com.google.android.libraries.mobiledatadownload.file.backends.JavaFileBackend; |
| import com.google.android.libraries.mobiledatadownload.file.common.testing.TemporaryUri; |
| import com.google.android.libraries.mobiledatadownload.file.transforms.CompressTransform; |
| import com.google.android.libraries.mobiledatadownload.file.transforms.TransformProtos; |
| import com.google.android.libraries.storage.file.common.testing.TestMessageProto.ExtendableProto; |
| import com.google.android.libraries.storage.file.common.testing.TestMessageProto.ExtensionProto; |
| import com.google.android.libraries.storage.file.common.testing.TestMessageProto.FooProto; |
| import com.google.protobuf.ExtensionRegistryLite; |
| import com.google.protobuf.InvalidProtocolBufferException; |
| import java.util.Arrays; |
| import org.junit.Before; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.robolectric.RobolectricTestRunner; |
| |
| @RunWith(RobolectricTestRunner.class) |
| public final class ReadProtoOpenerTest { |
| |
| private static final FooProto TEST_PROTO = |
| FooProto.newBuilder().setText("foo text").setBoolean(true).build(); |
| |
| private SynchronousFileStorage storage; |
| |
| @Rule public TemporaryUri tmpUri = new TemporaryUri(); |
| |
| @Before |
| public void setUpStorage() throws Exception { |
| storage = |
| new SynchronousFileStorage( |
| Arrays.asList(new JavaFileBackend()), Arrays.asList(new CompressTransform())); |
| } |
| |
| @Test |
| public void create_fromMessageParser_returnsOpenerWithCorrectGenericType() throws Exception { |
| Uri uri = tmpUri.newUri(); |
| storage.open(uri, WriteProtoOpener.create(TEST_PROTO)); |
| |
| ReadProtoOpener<FooProto> opener = ReadProtoOpener.create(FooProto.parser()); |
| FooProto unusedToCheckCompilation = storage.open(uri, opener); |
| |
| // Ensure Java compiler can infer the correct generic when Opener is passed in directly |
| unusedToCheckCompilation = storage.open(uri, ReadProtoOpener.create(FooProto.parser())); |
| } |
| |
| @Test |
| public void create_fromMessageInstance_returnsOpenerWithCorrectGenericType() throws Exception { |
| Uri uri = tmpUri.newUri(); |
| storage.open(uri, WriteProtoOpener.create(TEST_PROTO)); |
| |
| ReadProtoOpener<FooProto> opener = ReadProtoOpener.create(TEST_PROTO); |
| FooProto unusedToCheckCompilation = storage.open(uri, opener); |
| |
| // Ensure Java compiler can infer the correct generic when Opener is passed in directly |
| unusedToCheckCompilation = storage.open(uri, ReadProtoOpener.create(TEST_PROTO)); |
| } |
| |
| @Test |
| public void open_readsFullProtoFromFile() throws Exception { |
| Uri uri = tmpUri.newUri(); |
| storage.open(uri, WriteProtoOpener.create(TEST_PROTO)); |
| |
| assertThat(storage.open(uri, ReadProtoOpener.create(FooProto.parser()))).isEqualTo(TEST_PROTO); |
| assertThat(storage.open(uri, ReadProtoOpener.create(TEST_PROTO))).isEqualTo(TEST_PROTO); |
| } |
| |
| @Test |
| public void open_readsEmptyProtoFromFile() throws Exception { |
| FooProto emptyProto = FooProto.getDefaultInstance(); |
| Uri uri = tmpUri.newUri(); |
| storage.open(uri, WriteProtoOpener.create(emptyProto)); |
| |
| assertThat(storage.open(uri, ReadProtoOpener.create(FooProto.parser()))).isEqualTo(emptyProto); |
| } |
| |
| @Test |
| public void open_invokesTransforms() throws Exception { |
| Uri uri = tmpUri.newUriBuilder().withTransform(TransformProtos.DEFAULT_COMPRESS_SPEC).build(); |
| storage.open(uri, WriteProtoOpener.create(TEST_PROTO)); |
| |
| assertThat(storage.open(uri, ReadProtoOpener.create(FooProto.parser()))).isEqualTo(TEST_PROTO); |
| } |
| |
| @Test |
| public void open_throwsIOExceptionOnBadParse() throws Exception { |
| Uri uri = tmpUri.newUri(); |
| storage.open(uri, WriteStringOpener.create("not a proto")); |
| |
| assertThrows( |
| InvalidProtocolBufferException.class, |
| () -> storage.open(uri, ReadProtoOpener.create(FooProto.parser()))); |
| } |
| |
| @Test |
| public void withRegistry_readsExtension() throws Exception { |
| Uri uri = tmpUri.newUri(); |
| ExtendableProto extendable = createProtoWithExtension(); |
| storage.open(uri, WriteProtoOpener.create(extendable)); |
| |
| ReadProtoOpener<ExtendableProto> opener = |
| ReadProtoOpener.create(ExtendableProto.parser()) |
| .withExtensionRegistry(ExtensionRegistryLite.getGeneratedRegistry()); |
| |
| ExtendableProto actualExtendable = storage.open(uri, opener); |
| assertThat(actualExtendable.hasExtension(ExtensionProto.extension)).isTrue(); |
| assertThat(actualExtendable.getExtension(ExtensionProto.extension).getFoo().getText()) |
| .isEqualTo("foo text"); |
| } |
| |
| @Test |
| public void withOutRegistry_failsToReadsExtension() throws Exception { |
| Uri uri = tmpUri.newUri(); |
| ExtendableProto extendable = createProtoWithExtension(); |
| storage.open(uri, WriteProtoOpener.create(extendable)); |
| |
| ReadProtoOpener<ExtendableProto> opener = ReadProtoOpener.create(ExtendableProto.parser()); |
| |
| ExtendableProto actualExtendable = storage.open(uri, opener); |
| assertThat(actualExtendable.hasExtension(ExtensionProto.extension)).isFalse(); |
| } |
| |
| private ExtendableProto createProtoWithExtension() { |
| ExtendableProto extendable = |
| ExtendableProto.newBuilder() |
| .setExtension( |
| ExtensionProto.extension, ExtensionProto.newBuilder().setFoo(TEST_PROTO).build()) |
| .build(); |
| return extendable; |
| } |
| } |