* with a CR+LF pair</a> on any non-file inputs before escaping them with this escaper.
   *
   * <p>When escaping a String, the following rules apply:
   *
   * <ul>
   *   <li>The alphanumeric characters "a" through "z", "A" through "Z" and "0" through "9" remain
   *       the same.
   *   <li>The special characters ".", "-", "*", and "_" remain the same.

package cmd

import (
	"testing"
)

func TestNewRequestID(t *testing.T) {
	// Ensure that it returns an alphanumeric result of length 16.
	id := mustGetRequestID(UTCNow())

	if len(id) != 16 {
		t.Fail()
	}

	var e rune
	for _, char := range id {
		e = char

		// Ensure that it is alphanumeric, in this case, between 0-9 and A-Z.
		if !(('0' <= e && e <= '9') || ('A' <= e && e <= 'Z')) {
			t.Fail()
		}
	}

    } catch (NullPointerException expected) {
      // pass
    }
  }

  /**
   * Tests that specifying any alphanumeric characters as 'safe' causes an {@link
   * IllegalArgumentException}.
   */
  public void testBadArguments_badchars() {
    String msg =
        "Alphanumeric characters are always 'safe' " + "and should not be explicitly specified";
    try {
      new PercentEscaper("-+#abc.!", false);

    } catch (NullPointerException expected) {
      // pass
    }
  }

  /**
   * Tests that specifying any alphanumeric characters as 'safe' causes an {@link
   * IllegalArgumentException}.
   */
  public void testBadArguments_badchars() {
    String msg =
        "Alphanumeric characters are always 'safe' " + "and should not be explicitly specified";
    try {
      new PercentEscaper("-+#abc.!", false);

  // Name must either be an empty string or pass DNS_LABEL validation:
  // * must be no more than 63 characters long.
  // * must consist of lower case alphanumeric characters or '-'.
  // * must start and end with an alphanumeric character.
  // Default is empty string.
  optional string name = 1;

  // protocol represents the IP protocol for this port.
  // Must be UDP, TCP, or SCTP.

  // Name must either be an empty string or pass DNS_LABEL validation:
  // * must be no more than 63 characters long.
  // * must consist of lower case alphanumeric characters or '-'.
  // * must start and end with an alphanumeric character.
  // Default is empty string.
  optional string name = 1;

  // protocol represents the IP protocol for this port.
  // Must be UDP, TCP, or SCTP.

    // TODO(dbeaumont): Support escapers where alphanumeric chars are not safe.
    checkNotNull(safeChars); // eager for GWT.
    // Avoid any misunderstandings about the behavior of this escaper
    if (safeChars.matches(".*[0-9A-Za-z].*")) {
      throw new IllegalArgumentException(
          "Alphanumeric characters are always 'safe' and should not be explicitly specified");
    }

  // as well as providing an identifier for logging purposes. A good name should be descriptive of
  // the associated expression.
  // Name must be a qualified name consisting of alphanumeric characters, '-', '_' or '.', and
  // must start and end with an alphanumeric character (e.g. 'MyName',  or 'my.name',  or
  // '123-abc', regex used for validation is '([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9]') with an

  // as well as providing an identifier for logging purposes. A good name should be descriptive of
  // the associated expression.
  // Name must be a qualified name consisting of alphanumeric characters, '-', '_' or '.', and
  // must start and end with an alphanumeric character (e.g. 'MyName',  or 'my.name',  or
  // '123-abc', regex used for validation is '([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9]') with an

  // as well as providing an identifier for logging purposes. A good name should be descriptive of
  // the associated expression.
  // Name must be a qualified name consisting of alphanumeric characters, '-', '_' or '.', and
  // must start and end with an alphanumeric character (e.g. 'MyName',  or 'my.name',  or
  // '123-abc', regex used for validation is '([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9]') with an