Word Wrapper Behavior

word_wrapper_behavior

# assert_equal(expected, actual, msg = nil)

assert_equal "word", wrap("word",4)
assert_equal "word", wrap("word",100)

# within word
assert_equal "wor\nds", wrap("words",3)
assert_equal "word\ns", wrap("words",4)
assert_equal "word\nword", wrap("word word",4)

# with spaces
assert_equal "word", wrap("word ",4)
assert_equal "word\nword", wrap("word word ",4)

# others
assert_equal "word word\nword", wrap("word word word",9)
assert_equal "word word\nword", wrap("word word word",10)
assert_equal "word word w\nord", wrap("word word word",11)
assert_equal "word word wo\nrd", wrap("word word word",12)