def test_complex():
"""Ensure we tokenize complex numbers properly"""
# This is a regression test for #143
entry = tokenize("(1j)")[0][0]
assert entry == BComplex("1.0j")
entry = tokenize("(j)")[0][0]
assert entry == BSymbol("j")
def test_lex_expression_float():
""" Make sure expressions can produce floats """
objs = tokenize("(foo 2.)")
assert objs == [BExpression([BSymbol("foo"), BFloat(2.)])]
objs = tokenize("(foo -0.5)")
assert objs == [BExpression([BSymbol("foo"), BFloat(-0.5)])]
objs = tokenize("(foo 1.e7)")
assert objs == [BExpression([BSymbol("foo"), BFloat(1.e7)])]
def test_lex_expression_complex():
""" Make sure expressions can produce complex """
objs = tokenize("(foo 2.j)")
assert objs == [BExpression([BSymbol("foo"), BComplex(2.j)])]
objs = tokenize("(foo -0.5j)")
assert objs == [BExpression([BSymbol("foo"), BComplex(-0.5j)])]
objs = tokenize("(foo 1.e7j)")
assert objs == [BExpression([BSymbol("foo"), BComplex(1.e7j)])]
objs = tokenize("(foo j)")
assert objs == [BExpression([BSymbol("foo"), BSymbol("j")])]
def test_unbalanced_exception():
"""Ensure the tokenization fails on unbalanced expressions"""
try:
tokenize("(bar))")
assert True is False
except LexException:
pass
try:
tokenize("(baz [quux]])")
assert True is False
except LexException:
pass
def test_lex_line_counting_multi_inner():
""" Make sure we can do multi-line tokenization (inner) """
entry = tokenize("""(foo
bar)""")[0]
inner = entry[0]
assert inner.start_line == 1
assert inner.start_column == 2
inner = entry[1]
assert inner.start_line == 2
assert inner.start_column == 5
def test_lex_line_counting():
""" Make sure we can count lines / columns """
entry = tokenize("(foo (one two))")[0]
assert entry.start_line == 1
assert entry.start_column == 1
assert entry.end_line == 1
assert entry.end_column == 15
entry = entry[1]
assert entry.start_line == 1
assert entry.start_column == 6
assert entry.end_line == 1
assert entry.end_column == 14
def test_nospace():
""" Ensure we can tokenize without spaces if we have to """
entry = tokenize("(foo(one two))")[0]
assert entry.start_line == 1
assert entry.start_column == 1
assert entry.end_line == 1
assert entry.end_column == 14
entry = entry[1]
assert entry.start_line == 1
assert entry.start_column == 5
assert entry.end_line == 1
assert entry.end_column == 13
def test_lex_line_counting_multi():
""" Make sure we can do multi-line tokenization """
entries = tokenize("""
(foo (one two))
(foo bar)
""")
entry = entries[0]
assert entry.start_line == 2
assert entry.start_column == 1
assert entry.end_line == 2
assert entry.end_column == 15
entry = entries[1]
assert entry.start_line == 3
assert entry.start_column == 1
assert entry.end_line == 3
assert entry.end_column == 9
def test_lex_exception():
""" Ensure tokenize throws a fit on a partial input """
try:
tokenize("(foo")
assert True is False
except PrematureEndOfInput:
pass
try:
tokenize("{foo bar")
assert True is False
except LexException: # wrong error
pass
try:
tokenize("(defn foo [bar]")
assert True is False
except LexException: # wrong error
pass
def test_lex_integers():
""" Make sure that integers are valid expressions"""
objs = tokenize("42 ")
assert objs == [BInteger(42)]
def test_lex_symbols():
""" Make sure that symbols are valid expressions"""
objs = tokenize("foo ")
assert objs == [BSymbol("foo")]
def test_lex_expression_integer():
""" Make sure expressions can produce integers """
objs = tokenize("(foo 2)")
assert objs == [BExpression([BSymbol("foo"), BInteger(2)])]
def test_lex_expression_symbols():
""" Make sure that expressions produce symbols """
objs = tokenize("(foo bar)")
assert objs == [BExpression([BSymbol("foo"), BSymbol("bar")])]