Dissolve gerrit-test-util top-level directory

Change-Id: I3be9943f8eb9c0b125bea49660b38eea467f0240

java/com/google/gerrit/extensions/BUILD

@@ -0,0 +1,11 @@
+java_library(
+    name = "extensions",
+    testonly = 1,
+    srcs = glob(["**/*.java"]),
+    visibility = ["//visibility:public"],
+    deps = [
+        "//gerrit-extension-api:api",
+        "//java/com/google/gerrit/truth",
+        "//lib:truth",
+    ],
+)

java/com/google/gerrit/extensions/client/RangeSubject.java

@@ -0,0 +1,63 @@
+// Copyright (C) 2016 The Android Open Source Project
+//
+// 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.gerrit.extensions.client;
+
+import static com.google.common.truth.Truth.assertAbout;
+
+import com.google.common.truth.FailureMetadata;
+import com.google.common.truth.IntegerSubject;
+import com.google.common.truth.Subject;
+import com.google.common.truth.Truth;
+
+public class RangeSubject extends Subject<RangeSubject, Comment.Range> {
+
+  public static RangeSubject assertThat(Comment.Range range) {
+    return assertAbout(RangeSubject::new).that(range);
+  }
+
+  private RangeSubject(FailureMetadata failureMetadata, Comment.Range range) {
+    super(failureMetadata, range);
+  }
+
+  public IntegerSubject startLine() {
+    return Truth.assertThat(actual().startLine).named("startLine");
+  }
+
+  public IntegerSubject startCharacter() {
+    return Truth.assertThat(actual().startCharacter).named("startCharacter");
+  }
+
+  public IntegerSubject endLine() {
+    return Truth.assertThat(actual().endLine).named("endLine");
+  }
+
+  public IntegerSubject endCharacter() {
+    return Truth.assertThat(actual().endCharacter).named("endCharacter");
+  }
+
+  public void isValid() {
+    isNotNull();
+    if (!actual().isValid()) {
+      fail("is valid");
+    }
+  }
+
+  public void isInvalid() {
+    isNotNull();
+    if (actual().isValid()) {
+      fail("is invalid");
+    }
+  }
+}

java/com/google/gerrit/extensions/common/CommitInfoSubject.java

@@ -0,0 +1,53 @@
+// Copyright (C) 2017 The Android Open Source Project
+//
+// 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.gerrit.extensions.common;
+
+import static com.google.common.truth.Truth.assertAbout;
+
+import com.google.common.truth.FailureMetadata;
+import com.google.common.truth.StringSubject;
+import com.google.common.truth.Subject;
+import com.google.common.truth.Truth;
+import com.google.gerrit.truth.ListSubject;
+
+public class CommitInfoSubject extends Subject<CommitInfoSubject, CommitInfo> {
+
+  public static CommitInfoSubject assertThat(CommitInfo commitInfo) {
+    return assertAbout(CommitInfoSubject::new).that(commitInfo);
+  }
+
+  private CommitInfoSubject(FailureMetadata failureMetadata, CommitInfo commitInfo) {
+    super(failureMetadata, commitInfo);
+  }
+
+  public StringSubject commit() {
+    isNotNull();
+    CommitInfo commitInfo = actual();
+    return Truth.assertThat(commitInfo.commit).named("commit");
+  }
+
+  public ListSubject<CommitInfoSubject, CommitInfo> parents() {
+    isNotNull();
+    CommitInfo commitInfo = actual();
+    return ListSubject.assertThat(commitInfo.parents, CommitInfoSubject::assertThat)
+        .named("parents");
+  }
+
+  public GitPersonSubject committer() {
+    isNotNull();
+    CommitInfo commitInfo = actual();
+    return GitPersonSubject.assertThat(commitInfo.committer).named("committer");
+  }
+}

java/com/google/gerrit/extensions/common/ContentEntrySubject.java

@@ -0,0 +1,71 @@
+// Copyright (C) 2017 The Android Open Source Project
+//
+// 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.gerrit.extensions.common;
+
+import static com.google.common.truth.Truth.assertAbout;
+
+import com.google.common.truth.FailureMetadata;
+import com.google.common.truth.StringSubject;
+import com.google.common.truth.Subject;
+import com.google.common.truth.Truth;
+import com.google.gerrit.extensions.common.DiffInfo.ContentEntry;
+import com.google.gerrit.truth.ListSubject;
+
+public class ContentEntrySubject extends Subject<ContentEntrySubject, ContentEntry> {
+
+  public static ContentEntrySubject assertThat(ContentEntry contentEntry) {
+    return assertAbout(ContentEntrySubject::new).that(contentEntry);
+  }
+
+  private ContentEntrySubject(FailureMetadata failureMetadata, ContentEntry contentEntry) {
+    super(failureMetadata, contentEntry);
+  }
+
+  public void isDueToRebase() {
+    isNotNull();
+    ContentEntry contentEntry = actual();
+    Truth.assertWithMessage("Entry should be marked 'dueToRebase'")
+        .that(contentEntry.dueToRebase)
+        .named("dueToRebase")
+        .isTrue();
+  }
+
+  public void isNotDueToRebase() {
+    isNotNull();
+    ContentEntry contentEntry = actual();
+    Truth.assertWithMessage("Entry should not be marked 'dueToRebase'")
+        .that(contentEntry.dueToRebase)
+        .named("dueToRebase")
+        .isNull();
+  }
+
+  public ListSubject<StringSubject, String> commonLines() {
+    isNotNull();
+    ContentEntry contentEntry = actual();
+    return ListSubject.assertThat(contentEntry.ab, Truth::assertThat).named("common lines");
+  }
+
+  public ListSubject<StringSubject, String> linesOfA() {
+    isNotNull();
+    ContentEntry contentEntry = actual();
+    return ListSubject.assertThat(contentEntry.a, Truth::assertThat).named("lines of 'a'");
+  }
+
+  public ListSubject<StringSubject, String> linesOfB() {
+    isNotNull();
+    ContentEntry contentEntry = actual();
+    return ListSubject.assertThat(contentEntry.b, Truth::assertThat).named("lines of 'b'");
+  }
+}

java/com/google/gerrit/extensions/common/DiffInfoSubject.java

@@ -0,0 +1,48 @@
+// Copyright (C) 2017 The Android Open Source Project
+//
+// 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.gerrit.extensions.common;
+
+import static com.google.common.truth.Truth.assertAbout;
+
+import com.google.common.truth.ComparableSubject;
+import com.google.common.truth.FailureMetadata;
+import com.google.common.truth.Subject;
+import com.google.common.truth.Truth;
+import com.google.gerrit.extensions.common.DiffInfo.ContentEntry;
+import com.google.gerrit.truth.ListSubject;
+
+public class DiffInfoSubject extends Subject<DiffInfoSubject, DiffInfo> {
+
+  public static DiffInfoSubject assertThat(DiffInfo diffInfo) {
+    return assertAbout(DiffInfoSubject::new).that(diffInfo);
+  }
+
+  private DiffInfoSubject(FailureMetadata failureMetadata, DiffInfo diffInfo) {
+    super(failureMetadata, diffInfo);
+  }
+
+  public ListSubject<ContentEntrySubject, ContentEntry> content() {
+    isNotNull();
+    DiffInfo diffInfo = actual();
+    return ListSubject.assertThat(diffInfo.content, ContentEntrySubject::assertThat)
+        .named("content");
+  }
+
+  public ComparableSubject<?, ChangeType> changeType() {
+    isNotNull();
+    DiffInfo diffInfo = actual();
+    return Truth.assertThat(diffInfo.changeType).named("changeType");
+  }
+}

java/com/google/gerrit/extensions/common/EditInfoSubject.java

@@ -0,0 +1,52 @@
+// Copyright (C) 2017 The Android Open Source Project
+//
+// 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.gerrit.extensions.common;
+
+import static com.google.common.truth.Truth.assertAbout;
+
+import com.google.common.truth.FailureMetadata;
+import com.google.common.truth.StringSubject;
+import com.google.common.truth.Subject;
+import com.google.common.truth.Truth;
+import com.google.gerrit.truth.OptionalSubject;
+import java.util.Optional;
+
+public class EditInfoSubject extends Subject<EditInfoSubject, EditInfo> {
+
+  public static EditInfoSubject assertThat(EditInfo editInfo) {
+    return assertAbout(EditInfoSubject::new).that(editInfo);
+  }
+
+  public static OptionalSubject<EditInfoSubject, EditInfo> assertThat(
+      Optional<EditInfo> editInfoOptional) {
+    return OptionalSubject.assertThat(editInfoOptional, EditInfoSubject::assertThat);
+  }
+
+  private EditInfoSubject(FailureMetadata failureMetadata, EditInfo editInfo) {
+    super(failureMetadata, editInfo);
+  }
+
+  public CommitInfoSubject commit() {
+    isNotNull();
+    EditInfo editInfo = actual();
+    return CommitInfoSubject.assertThat(editInfo.commit).named("commit");
+  }
+
+  public StringSubject baseRevision() {
+    isNotNull();
+    EditInfo editInfo = actual();
+    return Truth.assertThat(editInfo.baseRevision).named("baseRevision");
+  }
+}

java/com/google/gerrit/extensions/common/FileInfoSubject.java

@@ -0,0 +1,52 @@
+// Copyright (C) 2017 The Android Open Source Project
+//
+// 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.gerrit.extensions.common;
+
+import static com.google.common.truth.Truth.assertAbout;
+
+import com.google.common.truth.ComparableSubject;
+import com.google.common.truth.FailureMetadata;
+import com.google.common.truth.IntegerSubject;
+import com.google.common.truth.Subject;
+import com.google.common.truth.Truth;
+
+public class FileInfoSubject extends Subject<FileInfoSubject, FileInfo> {
+
+  public static FileInfoSubject assertThat(FileInfo fileInfo) {
+    return assertAbout(FileInfoSubject::new).that(fileInfo);
+  }
+
+  private FileInfoSubject(FailureMetadata failureMetadata, FileInfo fileInfo) {
+    super(failureMetadata, fileInfo);
+  }
+
+  public IntegerSubject linesInserted() {
+    isNotNull();
+    FileInfo fileInfo = actual();
+    return Truth.assertThat(fileInfo.linesInserted).named("linesInserted");
+  }
+
+  public IntegerSubject linesDeleted() {
+    isNotNull();
+    FileInfo fileInfo = actual();
+    return Truth.assertThat(fileInfo.linesDeleted).named("linesDeleted");
+  }
+
+  public ComparableSubject<?, Character> status() {
+    isNotNull();
+    FileInfo fileInfo = actual();
+    return Truth.assertThat(fileInfo.status).named("status");
+  }
+}

java/com/google/gerrit/extensions/common/FixReplacementInfoSubject.java

@@ -0,0 +1,48 @@
+// Copyright (C) 2016 The Android Open Source Project
+//
+// 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.gerrit.extensions.common;
+
+import static com.google.common.truth.Truth.assertAbout;
+
+import com.google.common.truth.FailureMetadata;
+import com.google.common.truth.StringSubject;
+import com.google.common.truth.Subject;
+import com.google.common.truth.Truth;
+import com.google.gerrit.extensions.client.RangeSubject;
+
+public class FixReplacementInfoSubject
+    extends Subject<FixReplacementInfoSubject, FixReplacementInfo> {
+
+  public static FixReplacementInfoSubject assertThat(FixReplacementInfo fixReplacementInfo) {
+    return assertAbout(FixReplacementInfoSubject::new).that(fixReplacementInfo);
+  }
+
+  private FixReplacementInfoSubject(
+      FailureMetadata failureMetadata, FixReplacementInfo fixReplacementInfo) {
+    super(failureMetadata, fixReplacementInfo);
+  }
+
+  public StringSubject path() {
+    return Truth.assertThat(actual().path).named("path");
+  }
+
+  public RangeSubject range() {
+    return RangeSubject.assertThat(actual().range).named("range");
+  }
+
+  public StringSubject replacement() {
+    return Truth.assertThat(actual().replacement).named("replacement");
+  }
+}

java/com/google/gerrit/extensions/common/FixSuggestionInfoSubject.java

@@ -0,0 +1,52 @@
+// Copyright (C) 2016 The Android Open Source Project
+//
+// 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.gerrit.extensions.common;
+
+import static com.google.common.truth.Truth.assertAbout;
+
+import com.google.common.truth.FailureMetadata;
+import com.google.common.truth.StringSubject;
+import com.google.common.truth.Subject;
+import com.google.common.truth.Truth;
+import com.google.gerrit.truth.ListSubject;
+
+public class FixSuggestionInfoSubject extends Subject<FixSuggestionInfoSubject, FixSuggestionInfo> {
+
+  public static FixSuggestionInfoSubject assertThat(FixSuggestionInfo fixSuggestionInfo) {
+    return assertAbout(FixSuggestionInfoSubject::new).that(fixSuggestionInfo);
+  }
+
+  private FixSuggestionInfoSubject(
+      FailureMetadata failureMetadata, FixSuggestionInfo fixSuggestionInfo) {
+    super(failureMetadata, fixSuggestionInfo);
+  }
+
+  public StringSubject fixId() {
+    return Truth.assertThat(actual().fixId).named("fixId");
+  }
+
+  public ListSubject<FixReplacementInfoSubject, FixReplacementInfo> replacements() {
+    return ListSubject.assertThat(actual().replacements, FixReplacementInfoSubject::assertThat)
+        .named("replacements");
+  }
+
+  public FixReplacementInfoSubject onlyReplacement() {
+    return replacements().onlyElement();
+  }
+
+  public StringSubject description() {
+    return Truth.assertThat(actual().description).named("description");
+  }
+}

java/com/google/gerrit/extensions/common/GitPersonSubject.java

@@ -0,0 +1,40 @@
+// Copyright (C) 2017 The Android Open Source Project
+//
+// 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.gerrit.extensions.common;
+
+import static com.google.common.truth.Truth.assertAbout;
+
+import com.google.common.truth.ComparableSubject;
+import com.google.common.truth.FailureMetadata;
+import com.google.common.truth.Subject;
+import com.google.common.truth.Truth;
+import java.sql.Timestamp;
+
+public class GitPersonSubject extends Subject<GitPersonSubject, GitPerson> {
+
+  public static GitPersonSubject assertThat(GitPerson gitPerson) {
+    return assertAbout(GitPersonSubject::new).that(gitPerson);
+  }
+
+  private GitPersonSubject(FailureMetadata failureMetadata, GitPerson gitPerson) {
+    super(failureMetadata, gitPerson);
+  }
+
+  public ComparableSubject<?, Timestamp> creationDate() {
+    isNotNull();
+    GitPerson gitPerson = actual();
+    return Truth.assertThat(gitPerson.date).named("creationDate");
+  }
+}

java/com/google/gerrit/extensions/common/PathSubject.java

@@ -0,0 +1,31 @@
+// Copyright (C) 2017 The Android Open Source Project
+//
+// 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.gerrit.extensions.common;
+
+import static com.google.common.truth.Truth.assertAbout;
+
+import com.google.common.truth.FailureMetadata;
+import com.google.common.truth.Subject;
+import java.nio.file.Path;
+
+public class PathSubject extends Subject<PathSubject, Path> {
+  private PathSubject(FailureMetadata failureMetadata, Path path) {
+    super(failureMetadata, path);
+  }
+
+  public static PathSubject assertThat(Path path) {
+    return assertAbout(PathSubject::new).that(path);
+  }
+}

java/com/google/gerrit/extensions/common/RobotCommentInfoSubject.java

@@ -0,0 +1,49 @@
+// Copyright (C) 2016 The Android Open Source Project
+//
+// 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.gerrit.extensions.common;
+
+import static com.google.common.truth.Truth.assertAbout;
+
+import com.google.common.truth.FailureMetadata;
+import com.google.common.truth.Subject;
+import com.google.gerrit.truth.ListSubject;
+import java.util.List;
+
+public class RobotCommentInfoSubject extends Subject<RobotCommentInfoSubject, RobotCommentInfo> {
+
+  public static ListSubject<RobotCommentInfoSubject, RobotCommentInfo> assertThatList(
+      List<RobotCommentInfo> robotCommentInfos) {
+    return ListSubject.assertThat(robotCommentInfos, RobotCommentInfoSubject::assertThat)
+        .named("robotCommentInfos");
+  }
+
+  public static RobotCommentInfoSubject assertThat(RobotCommentInfo robotCommentInfo) {
+    return assertAbout(RobotCommentInfoSubject::new).that(robotCommentInfo);
+  }
+
+  private RobotCommentInfoSubject(
+      FailureMetadata failureMetadata, RobotCommentInfo robotCommentInfo) {
+    super(failureMetadata, robotCommentInfo);
+  }
+
+  public ListSubject<FixSuggestionInfoSubject, FixSuggestionInfo> fixSuggestions() {
+    return ListSubject.assertThat(actual().fixSuggestions, FixSuggestionInfoSubject::assertThat)
+        .named("fixSuggestions");
+  }
+
+  public FixSuggestionInfoSubject onlyFixSuggestion() {
+    return fixSuggestions().onlyElement();
+  }
+}

java/com/google/gerrit/extensions/restapi/BinaryResultSubject.java

@@ -0,0 +1,64 @@
+// Copyright (C) 2017 The Android Open Source Project
+//
+// 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.gerrit.extensions.restapi;
+
+import static com.google.common.truth.Truth.assertAbout;
+
+import com.google.common.truth.FailureMetadata;
+import com.google.common.truth.PrimitiveByteArraySubject;
+import com.google.common.truth.StringSubject;
+import com.google.common.truth.Subject;
+import com.google.common.truth.Truth;
+import com.google.gerrit.truth.OptionalSubject;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.util.Optional;
+
+public class BinaryResultSubject extends Subject<BinaryResultSubject, BinaryResult> {
+
+  public static BinaryResultSubject assertThat(BinaryResult binaryResult) {
+    return assertAbout(BinaryResultSubject::new).that(binaryResult);
+  }
+
+  public static OptionalSubject<BinaryResultSubject, BinaryResult> assertThat(
+      Optional<BinaryResult> binaryResultOptional) {
+    return OptionalSubject.assertThat(binaryResultOptional, BinaryResultSubject::assertThat);
+  }
+
+  private BinaryResultSubject(FailureMetadata failureMetadata, BinaryResult binaryResult) {
+    super(failureMetadata, binaryResult);
+  }
+
+  public StringSubject asString() throws IOException {
+    isNotNull();
+    // We shouldn't close the BinaryResult within this method as it might still
+    // be used afterwards. Besides, closing it doesn't have an effect for most
+    // implementations of a BinaryResult.
+    BinaryResult binaryResult = actual();
+    return Truth.assertThat(binaryResult.asString());
+  }
+
+  public PrimitiveByteArraySubject bytes() throws IOException {
+    isNotNull();
+    // We shouldn't close the BinaryResult within this method as it might still
+    // be used afterwards. Besides, closing it doesn't have an effect for most
+    // implementations of a BinaryResult.
+    BinaryResult binaryResult = actual();
+    ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
+    binaryResult.writeTo(byteArrayOutputStream);
+    byte[] bytes = byteArrayOutputStream.toByteArray();
+    return Truth.assertThat(bytes);
+  }
+}