=== ProfanityFilter Tests ===

-- isClean: clean words --
  PASS: 'RacerKing' is clean
  PASS: 'Thunder Pass' is clean
  PASS: 'SpeedDemon42' is clean
  PASS: 'HelloWorld' is clean
  PASS: 'Classic' is clean
  PASS: 'Assassin' is clean
  PASS: 'Bass' is clean
  PASS: 'Grasshopper' is clean

-- isClean: dirty words --
  PASS: 'fuck' is dirty
  PASS: 'FUCK' is dirty (case)
  PASS: 'Fuck' is dirty (mixed)
  PASS: 'shit' is dirty
  PASS: 'ass hole' is dirty

-- isClean: leet-speak substitutions --
  PASS: 'fvck' with no sub is clean
  PASS: 'sh1t' is dirty (1→i)
  PASS: 'a$$' is dirty ($→s)
  PASS: 'f_u_c_k' is dirty (seps)
  PASS: 'f.u.c.k' is dirty (dots)
  PASS: 'b1tch' is dirty (1→i)
  PASS: '@ss' is dirty (@→a)

-- isClean: edge cases --
  PASS: empty string is clean
  PASS: numbers '12345' clean
  PASS: single char 'a' clean

-- sanitize --
  PASS: sanitize replaces 'fuck'
  Result: 'What the **** is this'
  PASS: sanitize keeps clean text

=== Results: 25 passed, 0 failed ===