// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc. All rights reserved.
// https://developers.google.com/protocol-buffers/
//
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//
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package com.google.protobuf;
import static com.google.common.truth.Truth.assertThat;
import static com.google.common.truth.Truth.assertWithMessage;
import protobuf_unittest.UnittestProto.TestAllTypes;
import protobuf_unittest.UnittestProto.TestAllTypesOrBuilder;
import java.util.Collections;
import java.util.List;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/**
* Tests for {@link RepeatedFieldBuilderV3}. This tests basic functionality. More extensive testing is
* provided via other tests that exercise the builder.
*/
@RunWith(JUnit4.class)
public class RepeatedFieldBuilderV3Test {
@Test
public void testBasicUse() {
TestUtil.MockBuilderParent mockParent = new TestUtil.MockBuilderParent();
RepeatedFieldBuilderV3<TestAllTypes, TestAllTypes.Builder, TestAllTypesOrBuilder> builder =
newRepeatedFieldBuilderV3(mockParent);
builder.addMessage(TestAllTypes.newBuilder().setOptionalInt32(0).build());
builder.addMessage(TestAllTypes.newBuilder().setOptionalInt32(1).build());
assertThat(builder.getMessage(0).getOptionalInt32()).isEqualTo(0);
assertThat(builder.getMessage(1).getOptionalInt32()).isEqualTo(1);
List<TestAllTypes> list = builder.build();
assertThat(list).hasSize(2);
assertThat(list.get(0).getOptionalInt32()).isEqualTo(0);
assertThat(list.get(1).getOptionalInt32()).isEqualTo(1);
assertIsUnmodifiable(list);
// Make sure it doesn't change.
List<TestAllTypes> list2 = builder.build();
assertThat(list).isSameInstanceAs(list2);
assertThat(mockParent.getInvalidationCount()).isEqualTo(0);
}
@Test
public void testGoingBackAndForth() {
TestUtil.MockBuilderParent mockParent = new TestUtil.MockBuilderParent();
RepeatedFieldBuilderV3<TestAllTypes, TestAllTypes.Builder, TestAllTypesOrBuilder> builder =
newRepeatedFieldBuilderV3(mockParent);
builder.addMessage(TestAllTypes.newBuilder().setOptionalInt32(0).build());
builder.addMessage(TestAllTypes.newBuilder().setOptionalInt32(1).build());
assertThat(builder.getMessage(0).getOptionalInt32()).isEqualTo(0);
assertThat(builder.getMessage(1).getOptionalInt32()).isEqualTo(1);
// Convert to list
List<TestAllTypes> list = builder.build();
assertThat(list).hasSize(2);
assertThat(list.get(0).getOptionalInt32()).isEqualTo(0);
assertThat(list.get(1).getOptionalInt32()).isEqualTo(1);
assertIsUnmodifiable(list);
// Update 0th item
assertThat(mockParent.getInvalidationCount()).isEqualTo(0);
builder.getBuilder(0).setOptionalString("foo");
assertThat(mockParent.getInvalidationCount()).isEqualTo(1);
list = builder.build();
assertThat(list).hasSize(2);
assertThat(list.get(0).getOptionalInt32()).isEqualTo(0);
assertThat(list.get(0).getOptionalString()).isEqualTo("foo");
assertThat(list.get(1).getOptionalInt32()).isEqualTo(1);
assertIsUnmodifiable(list);
assertThat(mockParent.getInvalidationCount()).isEqualTo(1);
}
@Test
public void testVariousMethods() {
TestUtil.MockBuilderParent mockParent = new TestUtil.MockBuilderParent();
RepeatedFieldBuilderV3<TestAllTypes, TestAllTypes.Builder, TestAllTypesOrBuilder> builder =
newRepeatedFieldBuilderV3(mockParent);
builder.addMessage(TestAllTypes.newBuilder().setOptionalInt32(1).build());
builder.addMessage(TestAllTypes.newBuilder().setOptionalInt32(2).build());
builder.addBuilder(0, TestAllTypes.getDefaultInstance()).setOptionalInt32(0);
builder.addBuilder(TestAllTypes.getDefaultInstance()).setOptionalInt32(3);
assertThat(builder.getMessage(0).getOptionalInt32()).isEqualTo(0);
assertThat(builder.getMessage(1).getOptionalInt32()).isEqualTo(1);
assertThat(builder.getMessage(2).getOptionalInt32()).isEqualTo(2);
assertThat(builder.getMessage(3).getOptionalInt32()).isEqualTo(3);
assertThat(mockParent.getInvalidationCount()).isEqualTo(0);
List<TestAllTypes> messages = builder.build();
assertThat(messages).hasSize(4);
assertThat(messages).isSameInstanceAs(builder.build()); // expect same list
// Remove a message.
builder.remove(2);
assertThat(mockParent.getInvalidationCount()).isEqualTo(1);
assertThat(builder.getCount()).isEqualTo(3);
assertThat(builder.getMessage(0).getOptionalInt32()).isEqualTo(0);
assertThat(builder.getMessage(1).getOptionalInt32()).isEqualTo(1);
assertThat(builder.getMessage(2).getOptionalInt32()).isEqualTo(3);
// Remove a builder.
builder.remove(0);
assertThat(mockParent.getInvalidationCount()).isEqualTo(1);
assertThat(builder.getCount()).isEqualTo(2);
assertThat(builder.getMessage(0).getOptionalInt32()).isEqualTo(1);
assertThat(builder.getMessage(1).getOptionalInt32()).isEqualTo(3);
// Test clear.
builder.clear();
assertThat(mockParent.getInvalidationCount()).isEqualTo(1);
assertThat(builder.getCount()).isEqualTo(0);
assertThat(builder.isEmpty()).isTrue();
}
@Test
public void testLists() {
TestUtil.MockBuilderParent mockParent = new TestUtil.MockBuilderParent();
RepeatedFieldBuilderV3<TestAllTypes, TestAllTypes.Builder, TestAllTypesOrBuilder> builder =
newRepeatedFieldBuilderV3(mockParent);
builder.addMessage(TestAllTypes.newBuilder().setOptionalInt32(1).build());
builder.addMessage(0, TestAllTypes.newBuilder().setOptionalInt32(0).build());
assertThat(builder.getMessage(0).getOptionalInt32()).isEqualTo(0);
assertThat(builder.getMessage(1).getOptionalInt32()).isEqualTo(1);
// Use list of builders.
List<TestAllTypes.Builder> builders = builder.getBuilderList();
assertThat(builders.get(0).getOptionalInt32()).isEqualTo(0);
assertThat(builders.get(1).getOptionalInt32()).isEqualTo(1);
builders.get(0).setOptionalInt32(10);
builders.get(1).setOptionalInt32(11);
// Use list of protos
List<TestAllTypes> protos = builder.getMessageList();
assertThat(protos.get(0).getOptionalInt32()).isEqualTo(10);
assertThat(protos.get(1).getOptionalInt32()).isEqualTo(11);
// Add an item to the builders and verify it's updated in both
builder.addMessage(TestAllTypes.newBuilder().setOptionalInt32(12).build());
assertThat(builders).hasSize(3);
assertThat(protos).hasSize(3);
}
private void assertIsUnmodifiable(List<?> list) {
if (list == Collections.emptyList()) {
// OKAY -- Need to check this b/c EmptyList allows you to call clear.
} else {
try {
list.clear();
assertWithMessage("List wasn't immutable").fail();
} catch (UnsupportedOperationException e) {
// good
}
}
}
private RepeatedFieldBuilderV3<TestAllTypes, TestAllTypes.Builder, TestAllTypesOrBuilder>
newRepeatedFieldBuilderV3(AbstractMessage.BuilderParent parent) {
return new RepeatedFieldBuilderV3<TestAllTypes, TestAllTypes.Builder, TestAllTypesOrBuilder>(
Collections.<TestAllTypes>emptyList(), false, parent, false);
}
}
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