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Diffstat (limited to 'java/src/test/java/com/google/protobuf/NestedBuildersTest.java')
| -rw-r--r-- | java/src/test/java/com/google/protobuf/NestedBuildersTest.java | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/java/src/test/java/com/google/protobuf/NestedBuildersTest.java b/java/src/test/java/com/google/protobuf/NestedBuildersTest.java new file mode 100644 index 0000000..2365312 --- /dev/null +++ b/java/src/test/java/com/google/protobuf/NestedBuildersTest.java @@ -0,0 +1,185 @@ +// 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 protobuf_unittest.Vehicle; +import protobuf_unittest.Wheel; + +import junit.framework.TestCase; + +import java.util.List; +import java.util.ArrayList; + +/** + * Test cases that exercise end-to-end use cases involving + * {@link SingleFieldBuilder} and {@link RepeatedFieldBuilder}. + * + * @author jonp@google.com (Jon Perlow) + */ +public class NestedBuildersTest extends TestCase { + + 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(); + assertEquals(4, vehicle.getWheelCount()); + for (int i = 0; i < 4; i++) { + Wheel wheel = vehicle.getWheel(i); + assertEquals(4, wheel.getRadius()); + assertEquals(i + 1, wheel.getWidth()); + } + assertEquals(10, vehicle.getEngine().getLiters()); + + for (int i = 0; i < 4; i++) { + vehicleBuilder.getWheelBuilder(i) + .setRadius(5) + .setWidth(i + 10); + } + vehicleBuilder.getEngineBuilder().setLiters(20); + + vehicle = vehicleBuilder.build(); + for (int i = 0; i < 4; i++) { + Wheel wheel = vehicle.getWheel(i); + assertEquals(5, wheel.getRadius()); + assertEquals(i + 10, wheel.getWidth()); + } + assertEquals(20, vehicle.getEngine().getLiters()); + assertTrue(vehicle.hasEngine()); + } + + 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++) { + assertSame(wheels.get(i), 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++) { + assertSame(wheels.get(i), 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) { + assertSame(wheels.get(i), vehicleBuilder.getWheel(i)); + } else { + assertNotSame(wheels.get(i), vehicleBuilder.getWheel(i)); + } + } + } + + public void testRemove_WithNestedBuilders() { + Vehicle.Builder vehicleBuilder = Vehicle.newBuilder(); + vehicleBuilder.addWheelBuilder() + .setRadius(1) + .setWidth(1); + vehicleBuilder.addWheelBuilder() + .setRadius(2) + .setWidth(2); + vehicleBuilder.removeWheel(0); + + assertEquals(1, vehicleBuilder.getWheelCount()); + assertEquals(2, vehicleBuilder.getWheel(0).getRadius()); + } + + 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); + + assertEquals(1, vehicleBuilder.getWheelCount()); + assertEquals(2, vehicleBuilder.getWheel(0).getRadius()); + } + + 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 + assertSame(vehicle1.getWheelList(), vehicle2.getWheelList()); + + Vehicle vehicle3 = vehicle1.toBuilder().build(); + assertSame(vehicle1.getWheelList(), vehicle3.getWheelList()); + } + + public void testGettingBuilderMarksFieldAsHaving() { + Vehicle.Builder vehicleBuilder = Vehicle.newBuilder(); + vehicleBuilder.getEngineBuilder(); + Vehicle vehicle = vehicleBuilder.buildPartial(); + assertTrue(vehicle.hasEngine()); + } +} |