### Question:
TextSignatureRemover { public static String stripSignature(String content) { if (DASH_SIGNATURE_PLAIN.matcher(content).find()) { content = DASH_SIGNATURE_PLAIN.matcher(content).replaceFirst("\r\n"); } return content; }  static String stripSignature(String content);  }### Answer:
@Test public void shouldStripSignature() throws Exception { String text = "This is the body text\r\n" + "\r\n" + "-- \r\n" + "Sent from my Android device with K-9 Mail. Please excuse my brevity."; String withoutSignature = TextSignatureRemover.stripSignature(text); assertEquals("This is the body text\r\n\r\n", withoutSignature); }