def test_directions():
assert_equal(lex.scan_lexicon("north"), [("direction", "north")])
result = lex.scan_lexicon("north south east")
assert_equal(result, [("direction", "north"), ("direction", "south"),
("direction", "east")])
def test_errors():
result = lex.scan_lexicon("bitch f**k nuts")
assert_equal(result, [("error", "bitch"), ("error", "f**k"),
("error", "nuts")])
def test_numbers():
result = lex.scan_lexicon("91 100 24")
assert_equal(result, [("number", "91"), ("number", "100"),
("number", "24")])
def test_stops():
result = lex.scan_lexicon("of the in")
assert_equal(result, [("stop", "of"), ("stop", "the"), ("stop", "in")])
def test_nouns():
assert_equal(lex.scan_lexicon("princess"), [("noun", "princess")])
result = lex.scan_lexicon("princess door cabinet")
assert_equal(result, [("noun", "princess"), ("noun", "door"),
("noun", "cabinet")])
def test_verbs():
assert_equal(lex.scan_lexicon("go"), [("verb", "go")])
result = lex.scan_lexicon("go eat kill")
assert_equal(result, [("verb", "go"), ("verb", "eat"), ("verb", "kill")])