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path: root/src/test/java/org/yaml/snakeyaml/serializer/SerializerTest.java
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/**
 * 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 org.yaml.snakeyaml.serializer;

import java.io.IOException;
import java.io.StringWriter;
import java.text.NumberFormat;
import junit.framework.TestCase;
import org.yaml.snakeyaml.DumperOptions;
import org.yaml.snakeyaml.emitter.Emitter;
import org.yaml.snakeyaml.nodes.ScalarNode;
import org.yaml.snakeyaml.nodes.Tag;
import org.yaml.snakeyaml.resolver.Resolver;

public class SerializerTest extends TestCase {

  private Serializer serializer;

  @Override
  protected void setUp() {
    DumperOptions config = new DumperOptions();
    StringWriter writer = new StringWriter();
    serializer = new Serializer(new Emitter(writer, config), new Resolver(), config, null);
  }

  public void testSerializerIsAlreadyOpened() throws IOException {
    serializer.open();
    try {
      serializer.open();
      fail();
    } catch (RuntimeException e) {
      assertEquals("serializer is already opened", e.getMessage());
    }
  }

  public void testSerializerIsClosed1() throws IOException {
    serializer.open();
    serializer.close();
    try {
      serializer.open();
      fail();
    } catch (RuntimeException e) {
      assertEquals("serializer is closed", e.getMessage());
    }
  }

  public void testSerializerIsClosed2() throws IOException {
    serializer.open();
    serializer.close();
    try {
      serializer.serialize(
          new ScalarNode(new Tag("!foo"), "bar", null, null, DumperOptions.ScalarStyle.PLAIN));
      fail();
    } catch (RuntimeException e) {
      assertEquals("serializer is closed", e.getMessage());
    }
  }

  public void testSerializerIsClosed3() throws IOException {
    serializer.open();
    serializer.close();
    serializer.close();// no problem to close twice
  }

  public void testSerializerIsNotOpened1() throws IOException {
    try {
      serializer.close();
      fail();
    } catch (RuntimeException e) {
      assertEquals("serializer is not opened", e.getMessage());
    }
  }

  public void testSerializerIsNotOpened2() throws IOException {
    try {
      serializer.serialize(
          new ScalarNode(new Tag("!foo"), "bar", null, null, DumperOptions.ScalarStyle.PLAIN));
      fail();
    } catch (RuntimeException e) {
      assertEquals("serializer is not opened", e.getMessage());
    }
  }

  public void testGenerateAnchor() {
    NumberFormat format = NumberFormat.getNumberInstance();
    format.setMinimumIntegerDigits(3);
    String anchor = format.format(3L);
    assertEquals("003", anchor);
  }
}