platform/platform-tests/testSrc/com/intellij/openapi/diff/LineTokenizerTest.java

package com.intellij.openapi.diff;

import com.intellij.util.Assertion;
import junit.framework.TestCase;

public class LineTokenizerTest extends TestCase {
  private final Assertion CHECK = new Assertion();

  public void test() {
    CHECK.compareAll(new String[]{"a\n", "b\n", "c\n", "d\n"}, new LineTokenizer("a\nb\n\rc\rd\r\n").execute());
    CHECK.compareAll(new String[]{"a\n", "b"}, new LineTokenizer("a\nb").execute());
    LineTokenizer lineTokenizer = new LineTokenizer("a\n\r\r\nb");
    CHECK.compareAll(new String[]{"a\n", "\n", "b"}, lineTokenizer.execute());
    assertEquals("\n\r", lineTokenizer.getLineSeparator());
  }
}