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ExpressionEqualsHashcodeTest.java
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ExpressionEqualsHashcodeTest.java
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/*
* Copyright 2020 Immutables Authors and Contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.immutables.criteria.expression;
import com.google.common.testing.EqualsTester;
import org.immutables.criteria.personmodel.Person;
import org.junit.jupiter.api.Test;
/**
* Validate equals / hashCode behaviour for {@link Expression} implementations
*/
@SuppressWarnings("UnstableApiUsage")
class ExpressionEqualsHashcodeTest {
@Test
void constant() {
// null
new EqualsTester()
.addEqualityGroup(Constant.ofType(null, String.class), Constant.ofType(null, String.class))
.addEqualityGroup(Constant.ofType(null, Boolean.class))
.testEquals();
// string
new EqualsTester()
.addEqualityGroup(Constant.of("a"), Constant.of("a"))
.addEqualityGroup(Constant.of(""))
.addEqualityGroup(Constant.ofType(null, String.class))
.testEquals();
// int
new EqualsTester()
.addEqualityGroup(Constant.of(1), Constant.of(1))
.addEqualityGroup(Constant.of(2))
.testEquals();
// boolean
new EqualsTester()
.addEqualityGroup(Constant.of(false), Constant.of(false))
.addEqualityGroup(Constant.of(true))
.testEquals();
}
@Test
void path() throws Exception {
Path id1 = Path.ofMember(Person.class.getDeclaredMethod("id"));
Path id2 = Path.ofMember(Person.class.getDeclaredMethod("id"));
Path fullName = Path.ofMember(Person.class.getDeclaredMethod("fullName"));
new EqualsTester()
.addEqualityGroup(id1, id2)
.addEqualityGroup(fullName)
.testEquals();
}
@Test
void call() throws Exception {
Path id1 = Path.ofMember(Person.class.getDeclaredMethod("id"));
Path id2 = Path.ofMember(Person.class.getDeclaredMethod("id"));
Expression e1 = Expressions.binaryCall(Operators.EQUAL, id1, Expressions.constant("1"));
Expression e2 = Expressions.binaryCall(Operators.EQUAL, id2, Expressions.constant("1"));
Expression e3 = Expressions.binaryCall(Operators.EQUAL, id1, Expressions.constant("2"));
Path fullName = Path.ofMember(Person.class.getDeclaredMethod("fullName"));
Expression e4 = Expressions.binaryCall(Operators.EQUAL, fullName, Expressions.constant("1"));
new EqualsTester()
.addEqualityGroup(e1, e2)
.addEqualityGroup(e3)
.addEqualityGroup(e4)
.testEquals();
}
}