// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc. All rights reserved.
// https://developers.google.com/protocol-buffers/
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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 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
// overriden 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));
}
}