assertEquals("foobar", Ascii.truncate("foobar", 6, "…"));
    assertEquals("foob…", Ascii.truncate("foobar", 5, "…"));
    assertEquals("foo", Ascii.truncate("foobar", 3, ""));
    assertEquals("", Ascii.truncate("", 5, ""));
    assertEquals("", Ascii.truncate("", 5, "..."));
    assertEquals("", Ascii.truncate("", 0, ""));
  }

  public void testTruncateIllegalArguments() {
    try {
      Ascii.truncate("foobar", 2, "...");

   * the sequence will be returned as a string with no changes to the content.
   *
   * <p>Examples:
   *
   * <pre>{@code
   * Ascii.truncate("foobar", 7, "..."); // returns "foobar"
   * Ascii.truncate("foobar", 5, "..."); // returns "fo..."
   * }</pre>
   *
   * <p><b>Note:</b> This method <i>may</i> work with certain non-ASCII text but is not safe for use

    assertEquals("foobar", Ascii.truncate("foobar", 6, "…"));
    assertEquals("foob…", Ascii.truncate("foobar", 5, "…"));
    assertEquals("foo", Ascii.truncate("foobar", 3, ""));
    assertEquals("", Ascii.truncate("", 5, ""));
    assertEquals("", Ascii.truncate("", 5, "..."));
    assertEquals("", Ascii.truncate("", 0, ""));
  }

  public void testTruncateIllegalArguments() {
    try {
      Ascii.truncate("foobar", 2, "...");

  @Override
  public boolean wasStreamClosed() {
    return outputStreamClosed;
  }

  @Override
  public OutputStream openStream() throws IOException {
    outputStreamOpened = true;
    bytes.reset(); // truncate
    return new Out();
  }

  private final class Out extends TestOutputStream {

    public Out() throws IOException {
      super(bytes, options);
    }

    @Override

  @Override
  public boolean wasStreamClosed() {
    return outputStreamClosed;
  }

  @Override
  public OutputStream openStream() throws IOException {
    outputStreamOpened = true;
    bytes.reset(); // truncate
    return new Out();
  }

  private final class Out extends TestOutputStream {

    public Out() throws IOException {
      super(bytes, options);
    }

    @Override

   * the sequence will be returned as a string with no changes to the content.
   *
   * <p>Examples:
   *
   * <pre>{@code
   * Ascii.truncate("foobar", 7, "..."); // returns "foobar"
   * Ascii.truncate("foobar", 5, "..."); // returns "fo..."
   * }</pre>
   *
   * <p><b>Note:</b> This method <i>may</i> work with certain non-ASCII text but is not safe for use

import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;

/**
 * Modes for opening a file for writing. The default when mode when none is specified is to truncate
 * the file before writing.
 *
 * @author Colin Decker
 */
@J2ktIncompatible
@GwtIncompatible
@ElementTypesAreNonnullByDefault
public enum FileWriteMode {

   * bits, returns the low 32 bits of the result.
   *
   * @since 14.0
   */
  @J2ktIncompatible
  @GwtIncompatible // Does not truncate correctly
  public UnsignedInteger times(UnsignedInteger val) {
    // TODO(lowasser): make this GWT-compatible
    return fromIntBits(value * checkNotNull(val).value);
  }

  /**

  public void testBuildKeepingLast_shortTable() {
    Builder<Integer, String> builder = ImmutableMap.builder();
    Map<Integer, String> expected = new LinkedHashMap<>();
    for (int i = 0; i < 1000; i++) {
      // Truncate to even key, so we have put(0, "0") then put(0, "1"). Half the entries are
      // duplicates.
      Integer key = i & ~1;
      String value = String.valueOf(i);
      builder.put(key, value);

        .containsExactly("a:1", "b:2", "c:3")
        .inOrder();
  }

  public void testZipInfiniteWithInfinite() {
    // zip is doing an infinite zip, but we truncate the result so we can actually test it
    // but we want the zip itself to work
    assertThat(
            Streams.zip(
                    Stream.iterate(1, i -> i + 1).map(String::valueOf),