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Diffstat (limited to 'third_party/protobuf/3.4.0/java/core/src/test/java/com/google/protobuf/LiteEqualsAndHashTest.java')
-rw-r--r-- | third_party/protobuf/3.4.0/java/core/src/test/java/com/google/protobuf/LiteEqualsAndHashTest.java | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/third_party/protobuf/3.4.0/java/core/src/test/java/com/google/protobuf/LiteEqualsAndHashTest.java b/third_party/protobuf/3.4.0/java/core/src/test/java/com/google/protobuf/LiteEqualsAndHashTest.java new file mode 100644 index 0000000000..4764ca1bbc --- /dev/null +++ b/third_party/protobuf/3.4.0/java/core/src/test/java/com/google/protobuf/LiteEqualsAndHashTest.java @@ -0,0 +1,125 @@ +// 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.lite_equals_and_hash.LiteEqualsAndHash.Bar; +import protobuf_unittest.lite_equals_and_hash.LiteEqualsAndHash.BarPrime; +import protobuf_unittest.lite_equals_and_hash.LiteEqualsAndHash.Foo; +import protobuf_unittest.lite_equals_and_hash.LiteEqualsAndHash.TestOneofEquals; +import protobuf_unittest.lite_equals_and_hash.LiteEqualsAndHash.TestRecursiveOneof; + +import junit.framework.TestCase; + +/** + * Test generate equal and hash methods for the lite runtime. + * + * @author pbogle@google.com Phil Bogle + */ +public class LiteEqualsAndHashTest extends TestCase { + + public void testEquals() throws Exception { + // Since the generated equals and hashCode methods for lite messages are a + // mostly complete subset of those for regular messages, we can mostly assume + // that the generated methods are already thoroughly tested by the regular tests. + + // This test mostly just verifies is that a proto with + // optimize_for = LITE_RUNTIME and java_generates_equals_and_hash_compiles + // correctly when linked only against the lite library. + + // We do however do some basic testing to make sure that equals is actually + // overridden to test for value equality rather than simple object equality. + + // Check that two identical objs are equal. + Foo foo1a = Foo.newBuilder() + .setValue(1) + .addBar(Bar.newBuilder().setName("foo1")) + .build(); + Foo foo1b = Foo.newBuilder() + .setValue(1) + .addBar(Bar.newBuilder().setName("foo1")) + .build(); + Foo foo2 = Foo.newBuilder() + .setValue(1) + .addBar(Bar.newBuilder().setName("foo2")) + .build(); + + // Check that equals is doing value rather than object equality. + assertEquals(foo1a, foo1b); + assertEquals(foo1a.hashCode(), foo1b.hashCode()); + + // Check that a diffeent object is not equal. + assertFalse(foo1a.equals(foo2)); + + // Check that two objects which have different types but the same field values are not + // considered to be equal. + Bar bar = Bar.newBuilder().setName("bar").build(); + BarPrime barPrime = BarPrime.newBuilder().setName("bar").build(); + assertFalse(bar.equals(barPrime)); + } + + public void testOneofEquals() throws Exception { + TestOneofEquals.Builder builder = TestOneofEquals.newBuilder(); + TestOneofEquals message1 = builder.build(); + // Set message2's name field to default value. The two messages should be different when we + // check with the oneof case. + builder.setName(""); + TestOneofEquals message2 = builder.build(); + assertFalse(message1.equals(message2)); + } + + public void testEqualsAndHashCodeWithUnknownFields() throws InvalidProtocolBufferException { + Foo fooWithOnlyValue = Foo.newBuilder() + .setValue(1) + .build(); + + Foo fooWithValueAndExtension = fooWithOnlyValue.toBuilder() + .setValue(1) + .setExtension(Bar.fooExt, Bar.newBuilder() + .setName("name") + .build()) + .build(); + + Foo fooWithValueAndUnknownFields = Foo.parseFrom(fooWithValueAndExtension.toByteArray()); + + assertEqualsAndHashCodeAreFalse(fooWithOnlyValue, fooWithValueAndUnknownFields); + assertEqualsAndHashCodeAreFalse(fooWithValueAndExtension, fooWithValueAndUnknownFields); + } + + private void assertEqualsAndHashCodeAreFalse(Object o1, Object o2) { + assertFalse(o1.equals(o2)); + assertFalse(o1.hashCode() == o2.hashCode()); + } + + public void testRecursiveHashcode() { + // This tests that we don't infinite loop. + TestRecursiveOneof.getDefaultInstance().hashCode(); + } +} |