FileDiffs.java

/*
 * Created on Oct 10, 2012
 *
 * 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.
 *
 * Copyright @2013 the original author or authors.
 */
package org.fest.assertions.internal;

import java.util.List;

import org.fest.util.Lists;

/**
 * @author Joel Costigliola
 * @author Alex Ruiz
 * @author Yvonne Wang
 */
class FileDiffs {
  private final List<String> diffs = Lists.newArrayList();

  void add(String diff) {
    diffs.add(diff);
  }

  boolean isEmpty() {
    return diffs.isEmpty();
  }

  int size() {
    return diffs.size();
  }

  String get(int index) {
    return diffs.get(index);
  }

  @Override
  public String toString() {
    StringBuilder buffer = new StringBuilder();
    String lineSeparator = System.getProperty("line.separator");
    int diffCount = diffs.size();
    for (int i = 0; i < diffCount; i++) {
      buffer.append("  ").append(diffs.get(i));
      if (i < diffs.size() - 1) {
        buffer.append(lineSeparator);
      }
    }
    return buffer.toString();
  }
}