public void testReplace_specialCharacters()
 {
     FindAndReplace newFindAndReplace = new FindAndReplace("He said #BlackLivesMatter!", "BlackLivesMatter", "BLM");
       Assert.Equal(newFindAndReplace.Replace(), "He said #BLM!");
 }
 public void testReplace_helloworldworlduniversehelloworld_hellouniverse()
 {
     FindAndReplace newFindAndReplace = new FindAndReplace("hello world", "world", "universe");
       Assert.Equal(newFindAndReplace.Replace(), "hello universe");
 }
 public void testReplace_hellotheworldworlduniverse_hellothereworld()
 {
     FindAndReplace newFindAndReplace = new FindAndReplace ("hello the world", "the", "there");
       Assert.Equal(newFindAndReplace.Replace(), "hello there world");
 }
 public void testReplace_helloworldworlduniversehelloworld_helloplanet()
 {
     FindAndReplace newFindAndReplace = new FindAndReplace("hello world.", "world", "planet");
       Assert.Equal(newFindAndReplace.Replace(), "hello planet.");
 }
 public void testReplace_ellohelloworldellothere_goodhelloworld()
 {
     FindAndReplace newFindAndReplace = new FindAndReplace("ello hello world", "ello", "good");
       Assert.Equal(newFindAndReplace.Replace(), "good hello world");
 }