| // Protocol Buffers - Google's data interchange format |
| // Copyright 2008 Google Inc. All rights reserved. |
| // https://developers.google.com/protocol-buffers/ |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following disclaimer |
| // in the documentation and/or other materials provided with the |
| // distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| package com.google.protobuf; |
| |
| import static com.google.common.truth.Truth.assertThat; |
| |
| import protobuf_unittest.Engine; |
| import protobuf_unittest.TimingBelt; |
| import protobuf_unittest.Vehicle; |
| import protobuf_unittest.Wheel; |
| import java.util.ArrayList; |
| import java.util.List; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| /** |
| * Test cases that exercise end-to-end use cases involving {@link SingleFieldBuilder} and {@link |
| * RepeatedFieldBuilder}. |
| */ |
| @RunWith(JUnit4.class) |
| public class NestedBuildersTest { |
| |
| @Test |
| public void test3LayerPropagationWithIntermediateClear() { |
| Vehicle.Builder vehicleBuilder = Vehicle.newBuilder(); |
| vehicleBuilder.getEngineBuilder().getTimingBeltBuilder(); |
| |
| // This step detaches the TimingBelt.Builder (though it leaves a SingleFieldBuilder in place) |
| vehicleBuilder.getEngineBuilder().clear(); |
| |
| // These steps build the middle and top level messages, it used to leave the vestigial |
| // TimingBelt.Builder in a state where further changes didn't propagate anymore |
| Object unused = vehicleBuilder.getEngineBuilder().build(); |
| unused = vehicleBuilder.build(); |
| |
| TimingBelt expected = TimingBelt.newBuilder().setNumberOfTeeth(124).build(); |
| vehicleBuilder.getEngineBuilder().setTimingBelt(expected); |
| // Testing that b/254158939 is fixed. It used to be that the setTimingBelt call above didn't |
| // propagate a change notification and the call below would return a stale version of the timing |
| // belt. |
| assertThat(vehicleBuilder.getEngine().getTimingBelt()).isEqualTo(expected); |
| } |
| |
| @Test |
| public void testMessagesAndBuilders() { |
| Vehicle.Builder vehicleBuilder = Vehicle.newBuilder(); |
| vehicleBuilder.addWheelBuilder().setRadius(4).setWidth(1); |
| vehicleBuilder.addWheelBuilder().setRadius(4).setWidth(2); |
| vehicleBuilder.addWheelBuilder().setRadius(4).setWidth(3); |
| vehicleBuilder.addWheelBuilder().setRadius(4).setWidth(4); |
| vehicleBuilder.getEngineBuilder().setLiters(10); |
| |
| Vehicle vehicle = vehicleBuilder.build(); |
| assertThat(vehicle.getWheelCount()).isEqualTo(4); |
| for (int i = 0; i < 4; i++) { |
| Wheel wheel = vehicle.getWheel(i); |
| assertThat(wheel.getRadius()).isEqualTo(4); |
| assertThat(wheel.getWidth()).isEqualTo(i + 1); |
| } |
| assertThat(vehicle.getEngine().getLiters()).isEqualTo(10); |
| |
| for (int i = 0; i < 4; i++) { |
| vehicleBuilder.getWheelBuilder(i).setRadius(5).setWidth(i + 10); |
| } |
| Engine.Builder engineBuilder = vehicleBuilder.getEngineBuilder().setLiters(20); |
| |
| vehicle = vehicleBuilder.build(); |
| for (int i = 0; i < 4; i++) { |
| Wheel wheel = vehicle.getWheel(i); |
| assertThat(wheel.getRadius()).isEqualTo(5); |
| assertThat(wheel.getWidth()).isEqualTo(i + 10); |
| } |
| assertThat(vehicle.getEngine().getLiters()).isEqualTo(20); |
| assertThat(vehicle.hasEngine()).isTrue(); |
| |
| engineBuilder.setLiters(50); |
| assertThat(vehicleBuilder.getEngine().getLiters()).isEqualTo(50); |
| } |
| |
| @Test |
| public void testMessagesAreCached() { |
| Vehicle.Builder vehicleBuilder = Vehicle.newBuilder(); |
| vehicleBuilder.addWheelBuilder().setRadius(1).setWidth(2); |
| vehicleBuilder.addWheelBuilder().setRadius(3).setWidth(4); |
| vehicleBuilder.addWheelBuilder().setRadius(5).setWidth(6); |
| vehicleBuilder.addWheelBuilder().setRadius(7).setWidth(8); |
| |
| // Make sure messages are cached. |
| List<Wheel> wheels = new ArrayList<Wheel>(vehicleBuilder.getWheelList()); |
| for (int i = 0; i < wheels.size(); i++) { |
| assertThat(wheels.get(i)).isSameInstanceAs(vehicleBuilder.getWheel(i)); |
| } |
| |
| // Now get builders and check they didn't change. |
| for (int i = 0; i < wheels.size(); i++) { |
| vehicleBuilder.getWheel(i); |
| } |
| for (int i = 0; i < wheels.size(); i++) { |
| assertThat(wheels.get(i)).isSameInstanceAs(vehicleBuilder.getWheel(i)); |
| } |
| |
| // Change just one |
| vehicleBuilder.getWheelBuilder(3).setRadius(20).setWidth(20); |
| |
| // Now get wheels and check that only that one changed |
| for (int i = 0; i < wheels.size(); i++) { |
| if (i < 3) { |
| assertThat(wheels.get(i)).isSameInstanceAs(vehicleBuilder.getWheel(i)); |
| } else { |
| assertThat(wheels.get(i)).isNotSameInstanceAs(vehicleBuilder.getWheel(i)); |
| } |
| } |
| } |
| |
| @Test |
| public void testRemove_WithNestedBuilders() { |
| Vehicle.Builder vehicleBuilder = Vehicle.newBuilder(); |
| vehicleBuilder.addWheelBuilder().setRadius(1).setWidth(1); |
| vehicleBuilder.addWheelBuilder().setRadius(2).setWidth(2); |
| vehicleBuilder.removeWheel(0); |
| |
| assertThat(vehicleBuilder.getWheelCount()).isEqualTo(1); |
| assertThat(vehicleBuilder.getWheel(0).getRadius()).isEqualTo(2); |
| } |
| |
| @Test |
| public void testRemove_WithNestedMessages() { |
| Vehicle.Builder vehicleBuilder = Vehicle.newBuilder(); |
| vehicleBuilder.addWheel(Wheel.newBuilder().setRadius(1).setWidth(1)); |
| vehicleBuilder.addWheel(Wheel.newBuilder().setRadius(2).setWidth(2)); |
| vehicleBuilder.removeWheel(0); |
| |
| assertThat(vehicleBuilder.getWheelCount()).isEqualTo(1); |
| assertThat(vehicleBuilder.getWheel(0).getRadius()).isEqualTo(2); |
| } |
| |
| @Test |
| public void testMerge() { |
| Vehicle vehicle1 = |
| Vehicle.newBuilder() |
| .addWheel(Wheel.newBuilder().setRadius(1).build()) |
| .addWheel(Wheel.newBuilder().setRadius(2).build()) |
| .build(); |
| |
| Vehicle vehicle2 = Vehicle.newBuilder().mergeFrom(vehicle1).build(); |
| // List should be the same -- no allocation |
| assertThat(vehicle1.getWheelList()).isSameInstanceAs(vehicle2.getWheelList()); |
| |
| Vehicle vehicle3 = vehicle1.toBuilder().build(); |
| assertThat(vehicle1.getWheelList()).isSameInstanceAs(vehicle3.getWheelList()); |
| } |
| |
| @Test |
| public void testGettingBuilderMarksFieldAsHaving() { |
| Vehicle.Builder vehicleBuilder = Vehicle.newBuilder(); |
| vehicleBuilder.getEngineBuilder(); |
| Vehicle vehicle = vehicleBuilder.buildPartial(); |
| assertThat(vehicle.hasEngine()).isTrue(); |
| } |
| } |