content: /*
   * Copyright 2010-2025 Hyland Software, Inc. and its affiliates.
   *
   * 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 org.activiti.core.el.juel.tree;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  import java.io.BufferedReader;
  import java.io.IOException;
  import java.io.PrintWriter;
  import java.io.StringReader;
  import java.io.StringWriter;
  import org.activiti.core.el.juel.test.TestCase;
  import org.activiti.core.el.juel.tree.impl.Builder;
  import org.junit.jupiter.api.Test;
  
  public class NodePrinterTest extends TestCase {
  
      @Test
      public void testDump() throws IOException {
          Tree tree = new Builder(Builder.Feature.METHOD_INVOCATIONS).build("${foo.bar[baz] + foobar}");
          StringWriter writer = new StringWriter();
          NodePrinter.dump(new PrintWriter(writer), tree.getRoot());
          String[] expected = {
              "+- ${...}",
              "   |",
              "   +- '+'",
              "      |",
              "      +- [...]",
              "      |  |",
              "      |  +- . bar",
              "      |  |  |",
              "      |  |  +- foo",
              "      |  |",
              "      |  +- baz",
              "      |",
              "      +- foobar",
              null,
          };
          BufferedReader reader = new BufferedReader(new StringReader(writer.toString()));
          for (String line : expected) {
              assertEquals(line, reader.readLine());
          }
      }
  }
  