TestConstantInliner.java example

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/**
 * Copyright (C) 2010-2017 Gordon Fraser, Andrea Arcuri and EvoSuite
 * contributors
 *
 * This file is part of EvoSuite.
 *
 * EvoSuite is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation, either version 3.0 of the License, or
 * (at your option) any later version.
 *
 * EvoSuite 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 Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with EvoSuite. If not, see <http://www.gnu.org/licenses/>.
 */
package org.evosuite.testcase;

import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;

import java.util.ArrayList;
import java.util.List;

import com.examples.with.different.packagename.TrivialInt;
import org.evosuite.testcase.statements.*;
import org.evosuite.testcase.variable.ArrayIndex;
import org.evosuite.testcase.variable.ArrayReference;
import org.evosuite.testcase.variable.VariableReference;
import org.evosuite.utils.generic.GenericConstructor;
import org.evosuite.utils.generic.GenericMethod;
import org.junit.Test;

import com.examples.with.different.packagename.ObjectParameter;
import com.examples.with.different.packagename.StringConstantInliningExample;

public class TestConstantInliner {

	@Test
	public void testArrayIndexInlining() throws NoSuchMethodException, SecurityException {
		DefaultTestCase test = new DefaultTestCase();
		ConstructorStatement cs = new ConstructorStatement(test, new GenericConstructor(Object.class.getConstructor(), Object.class), new ArrayList<VariableReference>());
		VariableReference objectVar = test.addStatement(cs);
		
		ArrayStatement as = new ArrayStatement(test, Object[].class, 3);
		test.addStatement(as);
		
		ArrayReference arrayVar = as.getArrayReference();
		
		ArrayIndex ai0 = new ArrayIndex(test, arrayVar, 0);
		ArrayIndex ai1 = new ArrayIndex(test, arrayVar, 1);
		ArrayIndex ai2 = new ArrayIndex(test, arrayVar, 2);
		test.addStatement(new AssignmentStatement(test, ai0, objectVar));
		test.addStatement(new AssignmentStatement(test, ai1, objectVar));
		test.addStatement(new AssignmentStatement(test, ai2, objectVar));
		
		ConstructorStatement sutCS = new ConstructorStatement(test, new GenericConstructor(ObjectParameter.class.getConstructor(), ObjectParameter.class), new ArrayList<VariableReference>());
		VariableReference sut = test.addStatement(sutCS);

		List<VariableReference> parameters = new ArrayList<VariableReference>();
		parameters.add(ai0);
		test.addStatement(new MethodStatement(test, new GenericMethod(ObjectParameter.class.getMethods()[0], ObjectParameter.class), sut, parameters));
		parameters = new ArrayList<VariableReference>();
		parameters.add(ai1);
		test.addStatement(new MethodStatement(test, new GenericMethod(ObjectParameter.class.getMethods()[0], ObjectParameter.class), sut, parameters));
		parameters = new ArrayList<VariableReference>();
		parameters.add(ai2);
		test.addStatement(new MethodStatement(test, new GenericMethod(ObjectParameter.class.getMethods()[0], ObjectParameter.class), sut, parameters));
		System.out.println(test.toCode());
		
		ConstantInliner inliner = new ConstantInliner();
		inliner.inline(test);
		
		String code = test.toCode();
		assertFalse(code.contains("objectParameter0.testMe(objectArray0"));
	}

	@Test
	public void testNumericArrayIndexInlining() throws NoSuchMethodException, SecurityException {
		DefaultTestCase test = new DefaultTestCase();
		PrimitiveStatement<?> primitiveStatement = PrimitiveStatement.getPrimitiveStatement(test, int.class);
		VariableReference intVar = test.addStatement(primitiveStatement);

		ArrayStatement as = new ArrayStatement(test, int[].class, 3);
		test.addStatement(as);

		ArrayReference arrayVar = as.getArrayReference();

		ArrayIndex ai0 = new ArrayIndex(test, arrayVar, 0);
		ArrayIndex ai1 = new ArrayIndex(test, arrayVar, 1);
		ArrayIndex ai2 = new ArrayIndex(test, arrayVar, 2);
		test.addStatement(new AssignmentStatement(test, ai0, intVar));
		test.addStatement(new AssignmentStatement(test, ai1, intVar));
		test.addStatement(new AssignmentStatement(test, ai2, intVar));

		ConstructorStatement sutCS = new ConstructorStatement(test, new GenericConstructor(TrivialInt.class.getConstructor(), TrivialInt.class), new ArrayList<>());
		VariableReference sut = test.addStatement(sutCS);

		List<VariableReference> parameters = new ArrayList<VariableReference>();
		parameters.add(ai0);
		test.addStatement(new MethodStatement(test, new GenericMethod(TrivialInt.class.getMethods()[0], TrivialInt.class), sut, parameters));
		parameters = new ArrayList<>();
		parameters.add(ai1);
		test.addStatement(new MethodStatement(test, new GenericMethod(TrivialInt.class.getMethods()[0], TrivialInt.class), sut, parameters));
		parameters = new ArrayList<>();
		parameters.add(ai2);
		test.addStatement(new MethodStatement(test, new GenericMethod(TrivialInt.class.getMethods()[0], TrivialInt.class), sut, parameters));
		System.out.println(test.toCode());

		ConstantInliner inliner = new ConstantInliner();
		inliner.inline(test);

		String code = test.toCode();
		System.out.println(test.toCode());
		assertFalse(code.contains("trivialInt0.testMe(int"));
	}


	@Test
	public void testStringQuoting() throws NoSuchMethodException, SecurityException {
		DefaultTestCase test = new DefaultTestCase();
		ConstructorStatement cs = new ConstructorStatement(test, new GenericConstructor(StringConstantInliningExample.class.getConstructor(), StringConstantInliningExample.class), new ArrayList<VariableReference>());
		VariableReference objectVar = test.addStatement(cs);
		
		StringPrimitiveStatement stringStatement = new StringPrimitiveStatement(test, "EXAMPLE");
		VariableReference stringParam = test.addStatement(stringStatement);
		
		List<VariableReference> parameters = new ArrayList<VariableReference>();
		parameters.add(stringParam);
		test.addStatement(new MethodStatement(test, new GenericMethod(StringConstantInliningExample.class.getMethods()[0], StringConstantInliningExample.class), objectVar, parameters));
		System.out.println(test.toCode());
		
		ConstantInliner inliner = new ConstantInliner();
		inliner.inline(test);
		
		String code = test.toCode();
		System.out.println(code);
		assertFalse(code.contains("foo(EXAMPLE)"));
		assertTrue(code.contains("foo(\"EXAMPLE\")"));
	}
	
	@Test
	public void testStringEndingWithClass() throws NoSuchMethodException, SecurityException {
		DefaultTestCase test = new DefaultTestCase();
		ConstructorStatement cs = new ConstructorStatement(test, new GenericConstructor(StringConstantInliningExample.class.getConstructor(), StringConstantInliningExample.class), new ArrayList<VariableReference>());
		VariableReference objectVar = test.addStatement(cs);
		
		StringPrimitiveStatement stringStatement = new StringPrimitiveStatement(test, "test.class");
		VariableReference stringParam = test.addStatement(stringStatement);
		
		List<VariableReference> parameters = new ArrayList<VariableReference>();
		parameters.add(stringParam);
		test.addStatement(new MethodStatement(test, new GenericMethod(StringConstantInliningExample.class.getMethods()[0], StringConstantInliningExample.class), objectVar, parameters));
		System.out.println(test.toCode());
		
		ConstantInliner inliner = new ConstantInliner();
		inliner.inline(test);
		
		String code = test.toCode();
		System.out.println(code);
		assertFalse(code.contains("foo(test.class)"));
		assertTrue(code.contains("foo(\"test.class\")"));
	}
	
	
	
}