| /* |
| * 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.transforms; |
| |
| import static com.google.common.truth.Truth.assertThat; |
| import static org.junit.Assert.assertThrows; |
| |
| import android.net.Uri; |
| import androidx.test.core.app.ApplicationProvider; |
| import com.google.common.collect.ImmutableList; |
| import com.google.mobiledatadownload.TransformProto; |
| import com.google.protobuf.contrib.android.ProtoParsers; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.robolectric.RobolectricTestRunner; |
| |
| @RunWith(RobolectricTestRunner.class) |
| public final class TransformProtosTest { |
| |
| @Test |
| public void emptyProto_producesEmptyTransform() throws Exception { |
| TransformProto.Transforms emptyTransforms = TransformProto.Transforms.getDefaultInstance(); |
| String fragment = TransformProtos.toEncodedFragment(emptyTransforms); |
| assertThat(fragment).isNull(); |
| assertThat( |
| Uri.parse("http://foo.bar#transform=foo") |
| .buildUpon() |
| .encodedFragment(fragment) |
| .build() |
| .toString()) |
| .isEqualTo("http://foo.bar"); |
| } |
| |
| @Test |
| public void missingTransform_throwsException() throws Exception { |
| TransformProto.Transforms invalidTransform = |
| TransformProto.Transforms.newBuilder() |
| .addTransform(TransformProto.Transform.getDefaultInstance()) |
| .build(); |
| |
| assertThrows( |
| IllegalArgumentException.class, () -> TransformProtos.toEncodedFragment(invalidTransform)); |
| } |
| |
| @Test |
| public void compressProto_producesCompressTransform() throws Exception { |
| TransformProto.Transforms transformsProto = |
| TransformProto.Transforms.newBuilder() |
| .addTransform( |
| TransformProto.Transform.newBuilder() |
| .setCompress(TransformProto.CompressTransform.getDefaultInstance())) |
| .build(); |
| String fragment = TransformProtos.toEncodedFragment(transformsProto); |
| assertThat(fragment).isEqualTo("transform=compress"); |
| } |
| |
| @Test |
| public void encryptProto_producesEncryptTransform() throws Exception { |
| TransformProto.Transforms transformsProto = |
| TransformProto.Transforms.newBuilder() |
| .addTransform( |
| TransformProto.Transform.newBuilder() |
| .setEncrypt(TransformProto.EncryptTransform.getDefaultInstance())) |
| .build(); |
| String fragment = TransformProtos.toEncodedFragment(transformsProto); |
| assertThat(fragment).isEqualTo("transform=encrypt"); |
| } |
| |
| @Test |
| public void integrityProto_producesIntegrityTransform() throws Exception { |
| TransformProto.Transforms transformsProto = |
| TransformProto.Transforms.newBuilder() |
| .addTransform( |
| TransformProto.Transform.newBuilder() |
| .setIntegrity(TransformProto.IntegrityTransform.getDefaultInstance())) |
| .build(); |
| String fragment = TransformProtos.toEncodedFragment(transformsProto); |
| assertThat(fragment).isEqualTo("transform=integrity"); |
| } |
| |
| @Test |
| public void zipProto_producesZipTransform() throws Exception { |
| TransformProto.Transforms transformsProto = |
| TransformProto.Transforms.newBuilder() |
| .addTransform( |
| TransformProto.Transform.newBuilder() |
| .setZip(TransformProto.ZipTransform.newBuilder().setTarget("abc"))) |
| .build(); |
| String fragment = TransformProtos.toEncodedFragment(transformsProto); |
| assertThat(fragment).isEqualTo("transform=zip(target=abc)"); |
| } |
| |
| @Test |
| public void customProto_producesCustomTransform() throws Exception { |
| TransformProto.Transforms transformsProto = |
| TransformProto.Transforms.newBuilder() |
| .addTransform( |
| TransformProto.Transform.newBuilder() |
| .setCustom( |
| TransformProto.CustomTransform.newBuilder() |
| .setName("custom") |
| .addAllSubparam( |
| ImmutableList.of( |
| TransformProto.CustomTransform.SubParam.newBuilder() |
| .setKey("key1") |
| .setValue("value1") |
| .build(), |
| TransformProto.CustomTransform.SubParam.newBuilder() |
| .setKey("key2") |
| .setValue("=?!") |
| .build())))) |
| .build(); |
| String fragment = TransformProtos.toEncodedFragment(transformsProto); |
| assertThat(fragment).isEqualTo("transform=custom(key1=value1,key2=%3D%3F%21)"); |
| } |
| |
| @Test |
| public void textProto_producesMultiTransform() throws Exception { |
| TransformProto.Transforms transformsProto = getTransformsFromTextProto(); |
| String fragment = TransformProtos.toEncodedFragment(transformsProto); |
| assertThat(fragment) |
| .isEqualTo("transform=compress+encrypt(aes_gcm_key=a%2Bbc)+integrity(sha256=ab%2Bc)"); |
| } |
| |
| @Test |
| public void canonicalExample_addProtoTransformToUri() throws Exception { |
| TransformProto.Transforms transformsProto = getTransformsFromTextProto(); |
| String fragment = TransformProtos.toEncodedFragment(transformsProto); |
| Uri uri = Uri.parse("file:/tmp/foo.txt").buildUpon().encodedFragment(fragment).build(); |
| assertThat(uri.toString()) |
| .isEqualTo( |
| "file:/tmp/foo.txt" |
| + "#transform=compress+encrypt(aes_gcm_key=a%2Bbc)+integrity(sha256=ab%2Bc)"); |
| } |
| |
| private TransformProto.Transforms getTransformsFromTextProto() { |
| return ProtoParsers.parseFromRawRes( |
| ApplicationProvider.getApplicationContext(), |
| TransformProto.Transforms.parser(), |
| R.raw.transforms_data_pb); |
| } |
| } |