1 files changed, 87 insertions, 0 deletions
diff --git a/src/test/java/com/code_intelligence/jazzer/mutation/mutator/proto/BuilderAdaptersTest.java b/src/test/java/com/code_intelligence/jazzer/mutation/mutator/proto/BuilderAdaptersTest.java
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+++ b/src/test/java/com/code_intelligence/jazzer/mutation/mutator/proto/BuilderAdaptersTest.java
@@ -0,0 +1,87 @@
+/*
+ * Copyright 2023 Code Intelligence GmbH
+ *
+ * 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.code_intelligence.jazzer.mutation.mutator.proto;
+
+import static com.code_intelligence.jazzer.mutation.mutator.proto.BuilderAdapters.makeMutableRepeatedFieldView;
+import static com.google.common.truth.Truth.assertThat;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+
+import com.code_intelligence.jazzer.protobuf.Proto3.RepeatedIntegralField3;
+import com.google.protobuf.Descriptors.FieldDescriptor;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+import org.junit.jupiter.api.Test;
+
+class BuilderAdaptersTest {
+  @Test
+  void testMakeMutableRepeatedFieldView() {
+    RepeatedIntegralField3.Builder builder = RepeatedIntegralField3.newBuilder();
+    FieldDescriptor someField = builder.getDescriptorForType().findFieldByNumber(1);
+    assertThat(someField).isNotNull();
+
+    List<Integer> view = makeMutableRepeatedFieldView(builder, someField);
+    assertThat(builder.build().getSomeFieldList()).isEmpty();
+
+    assertThat(view.add(1)).isTrue();
+    assertThat(view.get(0)).isEqualTo(1);
+    assertThat(view).hasSize(1);
+    assertThat(builder.build().getSomeFieldList()).containsExactly(1).inOrder();
+    assertThrows(IndexOutOfBoundsException.class, () -> view.get(1));
+
+    assertThat(view.add(2)).isTrue();
+    assertThat(view.add(3)).isTrue();
+    assertThat(view).hasSize(3);
+    assertThat(builder.build().getSomeFieldList()).containsExactly(1, 2, 3).inOrder();
+    assertThrows(IndexOutOfBoundsException.class, () -> view.get(3));
+
+    assertThat(view.set(1, 4)).isEqualTo(2);
+    assertThat(view).hasSize(3);
+    assertThat(builder.build().getSomeFieldList()).containsExactly(1, 4, 3).inOrder();
+
+    assertThat(view.set(1, 5)).isEqualTo(4);
+    assertThat(view).hasSize(3);
+    assertThat(builder.build().getSomeFieldList()).containsExactly(1, 5, 3).inOrder();
+
+    assertThat(view.remove(1)).isEqualTo(5);
+    assertThat(view).hasSize(2);
+    assertThat(builder.build().getSomeFieldList()).containsExactly(1, 3).inOrder();
+
+    assertThrows(IndexOutOfBoundsException.class, () -> view.remove(-1));
+    assertThrows(IndexOutOfBoundsException.class, () -> view.remove(2));
+
+    assertThat(view.addAll(1, Collections.emptyList())).isFalse();
+    assertThat(view).hasSize(2);
+    assertThat(builder.build().getSomeFieldList()).containsExactly(1, 3).inOrder();
+
+    assertThat(view.addAll(1, Arrays.asList(6, 7, 8))).isTrue();
+    assertThat(view).hasSize(5);
+    assertThat(builder.build().getSomeFieldList()).containsExactly(1, 6, 7, 8, 3).inOrder();
+
+    view.subList(2, 4).clear();
+    assertThat(view).hasSize(3);
+    assertThat(builder.build().getSomeFieldList()).containsExactly(1, 6, 3).inOrder();
+
+    assertThat(view.addAll(3, Arrays.asList(9, 10))).isTrue();
+    assertThat(view).hasSize(5);
+    assertThat(builder.build().getSomeFieldList()).containsExactly(1, 6, 3, 9, 10).inOrder();
+
+    view.clear();
+    assertThat(view).hasSize(0);
+    assertThat(builder.build().getSomeFieldList()).isEmpty();
+  }
+}