UnaryExpressionTests.java

/*******************************************************************************
* Copyright (c) 2016 Institute for Software, HSR Hochschule fuer Technik 
* Rapperswil, University of applied sciences and others
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*******************************************************************************/
package org.eclipse.cdt.core.parser.tests.ast2.constexprevaluation;

import junit.framework.TestSuite;

public class UnaryExpressionTests extends TestBase {
	public static class NonIndexing extends UnaryExpressionTests {
		public NonIndexing() {setStrategy(new NonIndexingTestStrategy());}
		public static TestSuite suite() {return suite(NonIndexing.class);}
	}
	
	public static class SingleProject extends UnaryExpressionTests {
		public SingleProject() {setStrategy(new SinglePDOMTestStrategy(true, false));}
		public static TestSuite suite() {return suite(SingleProject.class);}
	}
	
	// constexpr int doubleIncrement(int n) {
	//   ++n;
	//   ++n;
	//   return n;
	// }
	
	// constexpr int x = doubleIncrement(0);
	public void testSimpleSequence() throws Exception {
		assertEvaluationEquals(2);
	}
	
	// constexpr int function() { 
	//   int n { 0 };
	//   int m { n++ };
	//   int o { n++ };
	//   return n;
	// }
	
	// constexpr int x = function();
	public void testAssignmentWithPostfixIncrSideEffects() throws Exception {
		assertEvaluationEquals(2);
	}
	
	// constexpr int function() { 
	//   int n { 0 };
	//   int m { n-- };
	//   int o { n-- };
	//   return n;
	// }
	
	// constexpr int x = function();
	public void testAssignmentWithPostfixDecrSideEffects() throws Exception {
		assertEvaluationEquals(-2);
	}
	
	// constexpr int function() { 
	//   int n { 0 };
	//   int m { --n };
	//   int o { --n };
	//   return n;
	// }
	
	// constexpr int x = function();
	public void testAssignmentWithPrefixDecrSideEffects() throws Exception {
		assertEvaluationEquals(-2);
	}
	
	// constexpr int function() { 
	//   int n { 0 };
	//   int m { ++n };
	//   int o { ++n };
	//   return n;
	// }
	
	// constexpr int x = function();
	public void testAssignmentWithPrefixIncrSideEffects() throws Exception {
		assertEvaluationEquals(2);
	}
	
	// constexpr int function() { 
	//   int n { 0 };
	//   return n++;
	// }
	
	// constexpr int x = function();
	public void testPostfixIncrSemantics() throws Exception {
		assertEvaluationEquals(0);
	}
	
	// constexpr int function() { 
	//   int n { 0 };
	//   return n++;
	// }
	
	// constexpr int x = function();
	public void testPostfixDecrSemantics() throws Exception {
		assertEvaluationEquals(0);
	}
	
	// constexpr int function() { 
	//   int n { 0 };
	//   return ++n;
	// }
	
	// constexpr int x = function();
	public void testPrefixIncrSemantics() throws Exception {
		assertEvaluationEquals(1);
	}
	
	// constexpr int function() { 
	//   int n { 0 };
	//   return --n;
	// }
	
	// constexpr int x = function();
	public void testPrefixDecrSemantics() throws Exception {
		assertEvaluationEquals(-1);
	}
	
	//	constexpr int f() {
    //	  int x = 2;
    //	  ++(++x);
    //	  return x;
    //	}

    //	constexpr int x = f();	
    public void testPrefixIncrementReturnsLvalue() throws Exception {
      assertEvaluationEquals(4);
    }
}