| /* |
| * 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.android.libraries.mobiledatadownload.file.common.testing.StreamUtils.createFile; |
| import static com.google.common.truth.Truth.assertThat; |
| |
| 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.IntegrityTransform; |
| import com.google.android.libraries.mobiledatadownload.file.transforms.TransformProtoFragments; |
| import com.google.common.collect.ImmutableList; |
| import com.google.mobiledatadownload.TransformProto; |
| 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 IntegrityUriComputingOpenerTest { |
| |
| private static final String ORIGTEXT = "This is some regular old text ABC 123 !@#"; |
| private static final String ORIGTEXT_SHA256_B64 = "FoR1HrxdAhY05DE/gAUj0yjpzYpfWb0fJE+XBp8lY0o="; |
| private static final String ORIGTEXT_SHA256_B64_INCORRECT = "INCORRECT"; |
| |
| @Rule public TemporaryUri tmpUri = new TemporaryUri(); |
| |
| private SynchronousFileStorage storage; |
| |
| @Before |
| public void setUpStorage() throws Exception { |
| storage = |
| new SynchronousFileStorage( |
| ImmutableList.of(new JavaFileBackend()), ImmutableList.of(new IntegrityTransform())); |
| } |
| |
| @Test |
| public void integrityUriComputingOpener_shouldProduceCorrectChecksum() throws Exception { |
| |
| Uri initialUri = createTestFile(ORIGTEXT); |
| Uri uriWithChecksum = storage.open(initialUri, IntegrityUriComputingOpener.create()); |
| String digest = IntegrityTransform.getDigestIfPresent(uriWithChecksum); |
| |
| assertThat(digest).isEqualTo(ORIGTEXT_SHA256_B64); |
| } |
| |
| @Test |
| public void integrityUriComputingOpener_shouldIgnoreIncorrectInitialSpec() throws Exception { |
| TransformProto.Transform spec = |
| TransformProto.Transform.newBuilder() |
| .setIntegrity( |
| TransformProto.IntegrityTransform.newBuilder() |
| .setSha256(ORIGTEXT_SHA256_B64_INCORRECT)) |
| .build(); |
| Uri initialUri = TransformProtoFragments.addOrReplaceTransform(createTestFile(ORIGTEXT), spec); |
| Uri uriWithChecksum = storage.open(initialUri, IntegrityUriComputingOpener.create()); |
| String digest = IntegrityTransform.getDigestIfPresent(uriWithChecksum); |
| |
| assertThat(digest).isEqualTo(ORIGTEXT_SHA256_B64); |
| } |
| |
| @Test |
| public void integrityUriComputingOpener_shouldIgnoreIntegrityParamWithNoSubparam() |
| throws Exception { |
| TransformProto.Transform spec = |
| TransformProto.Transform.newBuilder() |
| .setIntegrity(TransformProto.IntegrityTransform.getDefaultInstance()) |
| .build(); |
| |
| Uri initialUri = TransformProtoFragments.addOrReplaceTransform(createTestFile(ORIGTEXT), spec); |
| Uri uriWithChecksum = storage.open(initialUri, IntegrityUriComputingOpener.create()); |
| String digest = IntegrityTransform.getDigestIfPresent(uriWithChecksum); |
| |
| assertThat(digest).isEqualTo(ORIGTEXT_SHA256_B64); |
| } |
| |
| private Uri createTestFile(String contents) throws Exception { |
| Uri uri = tmpUri.newUri(); |
| createFile(storage, uri, contents); |
| return uri; |
| } |
| } |