xref: /aosp_15_r20/external/snakeyaml/src/test/java/examples/DumpExampleTest.java (revision ac2a7c1bf4e14d82f3bd566dcc2d76d5b42faf34)

/**
 * Copyright (c) 2008, SnakeYAML
 *
 * 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 examples;

import java.io.StringWriter;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import junit.framework.TestCase;
import org.yaml.snakeyaml.DumperOptions;
import org.yaml.snakeyaml.Yaml;

public class DumpExampleTest extends TestCase {

  public void testDump() {
    Map<String, Object> data = new HashMap<String, Object>();
    data.put("name", "Silenthand Olleander");
    data.put("race", "Human");
    data.put("traits", new String[] {"ONE_HAND", "ONE_EYE"});
    Yaml yaml = new Yaml();
    String output = yaml.dump(data);
    assertTrue(output.contains("name: Silenthand Olleander"));
    assertTrue(output.contains("race: Human"));
    assertTrue(output.contains("traits: [ONE_HAND, ONE_EYE]"));
  }

  public void testDumpWriter() {
    Map<String, Object> data = new HashMap<String, Object>();
    data.put("name", "Silenthand Olleander");
    data.put("race", "Human");
    data.put("traits", new String[] {"ONE_HAND", "ONE_EYE"});
    Yaml yaml = new Yaml();
    StringWriter writer = new StringWriter();
    yaml.dump(data, writer);
    assertTrue(writer.toString().contains("name: Silenthand Olleander"));
    assertTrue(writer.toString().contains("race: Human"));
    assertTrue(writer.toString().contains("traits: [ONE_HAND, ONE_EYE]"));
  }

  public void testDumpMany() {
    List<Integer> docs = new ArrayList<Integer>();
    for (int i = 1; i < 4; i++) {
      docs.add(i);
    }
    DumperOptions options = new DumperOptions();
    options.setExplicitStart(true);
    Yaml yaml = new Yaml(options);
    String result = yaml.dumpAll(docs.iterator());
    assertNotNull(result);
    assertTrue(result.contains("--- 2"));
  }

  public void testDumpCustomJavaClass() {
    Hero hero = new Hero("Galain Ysseleg", -3, 2);
    DumperOptions options = new DumperOptions();
    options.setAllowReadOnlyProperties(true);
    Yaml yaml = new Yaml(options);
    String output = yaml.dump(hero);
    assertEquals("!!examples.Hero {hp: -3, name: Galain Ysseleg, sp: 2}\n", output);
  }

  public void testDumperOptions() {
    List<Integer> data = new ArrayList<Integer>();
    for (int i = 0; i < 50; i++) {
      data.add(i);
    }
    Yaml yaml = new Yaml();
    String output = yaml.dump(data);
    assertTrue(output.contains("[0, 1, 2, 3, 4, 5, 6, 7, 8"));
    //
    DumperOptions options = new DumperOptions();
    options.setWidth(50);
    options.setIndent(4);
    yaml = new Yaml(options);
    output = yaml.dump(data);
    assertTrue(output.contains("1, 2"));
  }

  public void testDumperOptionsCanonical() {
    List<Integer> data = new ArrayList<Integer>();
    for (int i = 0; i < 5; i++) {
      data.add(i);
    }
    DumperOptions options = new DumperOptions();
    options.setCanonical(true);
    Yaml yaml = new Yaml(options);
    String output = yaml.dump(data);
    assertTrue(output.contains("---"));
    assertTrue(output.contains("!!seq ["));
    assertTrue(output.contains("!!int \"3\","));
  }

  public void testDumperOptionsFlowStyle() {
    List<Integer> data = new ArrayList<Integer>();
    for (int i = 0; i < 5; i++) {
      data.add(i);
    }
    DumperOptions options = new DumperOptions();
    options.setDefaultFlowStyle(DumperOptions.FlowStyle.BLOCK);
    Yaml yaml = new Yaml(options);
    String output = yaml.dump(data);
    assertTrue(output.contains("- 0\n"));
    assertTrue(output.contains("- 1\n"));
    assertTrue(output.contains("- 4\n"));
  }

  public void testDumperOptionsStyle() {
    List<Integer> data = new ArrayList<Integer>();
    for (int i = 0; i < 5; i++) {
      data.add(i);
    }
    DumperOptions options = new DumperOptions();
    options.setDefaultScalarStyle(DumperOptions.ScalarStyle.DOUBLE_QUOTED);
    Yaml yaml = new Yaml(options);
    String output = yaml.dump(data);
    assertTrue(output.contains("- !!int \"0\""));
    assertTrue(output.contains("- !!int \"1\""));
    assertTrue(output.contains("- !!int \"4\""));
  }
}