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MethodDeclarationTest.java
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MethodDeclarationTest.java
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/*
* Copyright (C) 2007-2010 Júlio Vilmar Gesser.
* Copyright (C) 2011, 2013-2019 The JavaParser Team.
*
* This file is part of JavaParser.
*
* JavaParser can be used either under the terms of
* a) the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* b) the terms of the Apache License
*
* You should have received a copy of both licenses in LICENCE.LGPL and
* LICENCE.APACHE. Please refer to those files for details.
*
* JavaParser is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*/
package com.github.javaparser.ast.body;
import org.junit.jupiter.api.Test;
import static com.github.javaparser.StaticJavaParser.parseBodyDeclaration;
import static org.junit.jupiter.api.Assertions.*;
class MethodDeclarationTest {
@Test
void annotationsAllowedAfterGenericsAndBeforeReturnType() {
parseBodyDeclaration("public <T> @Abc String method() {return null;}");
}
@Test
void annotationsAllowedBeforeGenerics() {
parseBodyDeclaration("public @Abc <T> String method() {return null;}");
}
@Test
void explicitReceiverParameters1() {
MethodDeclaration method = parseBodyDeclaration("void InnerInner(@mypackage.Anno Source.@mypackage.Anno Inner Source.Inner.this) { }").asMethodDeclaration();
assertEquals("Source.Inner.this", method.getReceiverParameter().get().getNameAsString());
}
@Test
void explicitReceiverParameters2() {
MethodDeclaration method = parseBodyDeclaration("void x(A this) { }").asMethodDeclaration();
assertEquals("this", method.getReceiverParameter().get().getNameAsString());
}
@Test
void explicitReceiverParameters3() {
MethodDeclaration method = parseBodyDeclaration("void x(A that) { }").asMethodDeclaration();
assertFalse(method.getReceiverParameter().isPresent());
}
@Test
void signaturesEqual() {
MethodDeclaration method1 = parseBodyDeclaration("void x(String a) { }").asMethodDeclaration();
MethodDeclaration method2 = parseBodyDeclaration("int x(String z);").asMethodDeclaration();
assertEquals(method1.getSignature(), method2.getSignature());
}
@Test
void signaturesEqualWhenGenericsDiffer() {
MethodDeclaration method1 = parseBodyDeclaration("void x(List<Long> a) { }").asMethodDeclaration();
MethodDeclaration method2 = parseBodyDeclaration("void x(List<Integer> a) { }").asMethodDeclaration();
assertEquals(method1.getSignature(), method2.getSignature());
}
@Test
void signaturesEqualWhenAnnotationsDiffer() {
MethodDeclaration method1 = parseBodyDeclaration("void x(@A @B List a) { }").asMethodDeclaration();
MethodDeclaration method2 = parseBodyDeclaration("void x(@C List a) { }").asMethodDeclaration();
assertEquals(method1.getSignature(), method2.getSignature());
}
@Test
void signaturesDifferentName() {
MethodDeclaration method1 = parseBodyDeclaration("void x(String a) { }").asMethodDeclaration();
MethodDeclaration method2 = parseBodyDeclaration("int y(String z);").asMethodDeclaration();
assertNotEquals(method1.getSignature(), method2.getSignature());
}
@Test
void signaturesDifferentTypes() {
MethodDeclaration method1 = parseBodyDeclaration("void x(String a) { }").asMethodDeclaration();
MethodDeclaration method2 = parseBodyDeclaration("int x(int z);").asMethodDeclaration();
assertNotEquals(method1.getSignature(), method2.getSignature());
}
@Test
void signaturesDifferentVarargs() {
MethodDeclaration method1 = parseBodyDeclaration("int x(int z);").asMethodDeclaration();
MethodDeclaration method2 = parseBodyDeclaration("int x(int... z);").asMethodDeclaration();
assertNotEquals(method1.getSignature(), method2.getSignature());
}
@Test
void signatureToString() {
MethodDeclaration method1 = parseBodyDeclaration("int x(int z, String q);").asMethodDeclaration();
assertEquals("x(int, String)", method1.getSignature().toString());
}
@Test
void isVariableArityMethod() {
MethodDeclaration method1 = parseBodyDeclaration("int x(int... z);").asMethodDeclaration();
assertTrue(method1.isVariableArityMethod());
MethodDeclaration method2 = parseBodyDeclaration("int x(int i, int... z);").asMethodDeclaration();
assertTrue(method2.isVariableArityMethod());
}
@Test
void isFixedArityMethod() {
MethodDeclaration method1 = parseBodyDeclaration("int x(int z);").asMethodDeclaration();
assertTrue(method1.isFixedArityMethod());
MethodDeclaration method2 = parseBodyDeclaration("int x();").asMethodDeclaration();
assertTrue(method2.isFixedArityMethod());
}
}