public void testStripControlCharactersWithNull() {
try {
RenderUtils.stripControlCharacters(null);
fail("Expected exception with null input");
} catch (NullPointerException e) {
// Suceeded, do nothing
}
}
public void testStripControlCharactersWithOnlyControlCharacters() {
final String strippedContent = RenderUtils.stripControlCharacters(ONLY_CONTROL_CHARS);
assertEquals("", strippedContent);
}
public void testStripControlCharactersWithControlCharacters() {
final String strippedContent = RenderUtils.stripControlCharacters(WITH_CONTROL_CHARS);
assertEquals(WITHOUT_CONTROL_CHARS, strippedContent);
}
