1 files changed, 65 insertions, 0 deletions
diff --git a/java/com/google/gerrit/extensions/restapi/testing/BinaryResultSubject.java b/java/com/google/gerrit/extensions/restapi/testing/BinaryResultSubject.java
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+++ b/java/com/google/gerrit/extensions/restapi/testing/BinaryResultSubject.java
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+// 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.testing;
+
+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.extensions.restapi.BinaryResult;
+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);
+  }
+}