src/test/java/com/intellij/lang/ognl/psi/LambdaExpressionPsiTest.java

/*
 * Copyright 2014 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.OgnlTypes;
import com.intellij.psi.PsiTypes;
import org.intellij.lang.annotations.Language;

/**
 * @author Yann Cébron
 */
public class LambdaExpressionPsiTest extends PsiTestCase {

  public void testSimpleLiteral() {
    final OgnlLambdaExpression lambdaExpression = parse(":[ 12 ]");

    final OgnlExpression expression = lambdaExpression.getExpression();
    assertElementType(OgnlTypes.LITERAL_EXPRESSION, expression);
    assertEquals(PsiTypes.intType(), expression.getType());
  }

  public void testLanguageGuideSample() {
    final OgnlLambdaExpression lambdaExpression = parse(":[#this<=1 ? 1 : #this * 2]");

    final OgnlExpression expression = lambdaExpression.getExpression();
    assertElementType(OgnlTypes.CONDITIONAL_EXPRESSION, expression);
  }


  private OgnlLambdaExpression parse(@Language(value = OgnlLanguage.ID,
    prefix = OgnlLanguage.EXPRESSION_PREFIX,
    suffix = OgnlLanguage.EXPRESSION_SUFFIX) final String expression) {
    return (OgnlLambdaExpression)parseSingleExpression(expression);
  }
}