/*
* Copyright 2011 The authors
* 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 com.intellij.lang.ognl.psi;
import com.intellij.lang.ognl.OgnlLanguage;
import com.intellij.lang.ognl.parsing.OgnlElementTypes;
import com.intellij.psi.PsiType;
import org.intellij.lang.annotations.Language;
/**
* @author Yann Cébron
*/
public class ParenthesizedExpressionPsiTest extends PsiTestCase {
public void testSimpleParentheses() {
final OgnlParenthesizedExpression parenthesizedExpression = parse("(3 + 4)");
final OgnlExpression expression = parenthesizedExpression.getExpression();
assertElementType(OgnlElementTypes.BINARY_EXPRESSION, expression);
assertEquals(PsiType.INT, expression.getType());
final OgnlBinaryExpression binaryExpression = (OgnlBinaryExpression) expression;
assertElementType(OgnlElementTypes.INTEGER_LITERAL, binaryExpression.getLeftOperand());
assertEquals(OgnlTokenTypes.PLUS, binaryExpression.getOperationSign());
assertElementType(OgnlElementTypes.INTEGER_LITERAL, binaryExpression.getRightOperand());
}
public void testNestedParentheses() {
final OgnlParenthesizedExpression parenthesizedExpression = parse("(3 + (4 * 5))");
final OgnlExpression expression = parenthesizedExpression.getExpression();
assertElementType(OgnlElementTypes.BINARY_EXPRESSION, expression);
final OgnlBinaryExpression binaryExpression = (OgnlBinaryExpression) expression;
assertElementType(OgnlElementTypes.INTEGER_LITERAL, binaryExpression.getLeftOperand());
assertEquals(OgnlTokenTypes.PLUS, binaryExpression.getOperationSign());
assertElementType(OgnlElementTypes.PARENTHESIZED_EXPRESSION, binaryExpression.getRightOperand());
final OgnlParenthesizedExpression nestedParenthesizedExpression = (OgnlParenthesizedExpression) binaryExpression.getRightOperand();
assertNotNull(nestedParenthesizedExpression);
assertElementType(OgnlElementTypes.BINARY_EXPRESSION, nestedParenthesizedExpression.getExpression());
final OgnlBinaryExpression nestedBinaryExpression = (OgnlBinaryExpression) nestedParenthesizedExpression.getExpression();
assertElementType(OgnlElementTypes.INTEGER_LITERAL, nestedBinaryExpression.getLeftOperand());
assertEquals(OgnlTokenTypes.MULTIPLY, nestedBinaryExpression.getOperationSign());
assertElementType(OgnlElementTypes.INTEGER_LITERAL, nestedBinaryExpression.getRightOperand());
}
public void testNestedParenthesesWithMethodCall() {
final OgnlParenthesizedExpression parenthesizedExpression = parse("(3 + ( multiply(4, 5)))");
assertEquals("(3 + ( multiply(4, 5)))", parenthesizedExpression.getText());
final OgnlExpression expression = parenthesizedExpression.getExpression();
assertElementType(OgnlElementTypes.BINARY_EXPRESSION, expression);
final OgnlBinaryExpression binaryExpression = (OgnlBinaryExpression) expression;
assertElementType(OgnlElementTypes.INTEGER_LITERAL, binaryExpression.getLeftOperand());
assertEquals(OgnlTokenTypes.PLUS, binaryExpression.getOperationSign());
assertElementType(OgnlElementTypes.PARENTHESIZED_EXPRESSION, binaryExpression.getRightOperand());
final OgnlParenthesizedExpression nestedParenthesizedExpression = (OgnlParenthesizedExpression) binaryExpression.getRightOperand();
assertNotNull(nestedParenthesizedExpression);
assertElementType(OgnlElementTypes.METHOD_CALL_EXPRESSION, nestedParenthesizedExpression.getExpression());
}
private OgnlParenthesizedExpression parse(@Language(value = OgnlLanguage.ID,
prefix = OgnlLanguage.EXPRESSION_PREFIX,
suffix = OgnlLanguage.EXPRESSION_SUFFIX) final String expression) {
return (OgnlParenthesizedExpression) parseSingleExpression(expression);
}
}