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codon/test/core/match.codon

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@test
def test_bool_match():
T, F = True, False
b = False
match T:
case True:
b = True
case False:
assert False
case _:
assert False
assert b
b = False
match F:
case True:
assert False
case False:
b = True
case _:
assert False
assert b
test_bool_match()
@test
def test_str_match():
s = 'abc'
t = 'xyz'
e = ''
b = False
match s:
case '':
assert False
case 'abc':
b = True
case _:
assert False
assert b
b = False
match e:
case '':
b = True
case 'abc':
assert False
case _:
assert False
assert b
b = False
match t:
case '':
assert False
case 'abc':
assert False
case _:
b = True
assert b
b = False
match t:
case '':
assert False
case x if len(x) >= 3:
b = True
case _:
assert False
assert b
test_str_match()
@test
def test_tuple_match():
t = (42, 99)
r = (12, 12)
b = False
match t:
case (0, 0):
assert False
case (42, 99):
b = True
case _:
assert False
assert b
b = False
match t:
case (0, 0):
assert False
case (42, 0):
assert False
case _:
b = True
assert b
b = False
match t:
case (0, 0):
assert False
case (0, 99):
assert False
case _:
b = True
assert b
b = False
match t:
case (0, 0):
assert False
case (a, _) if a == 42:
b = True
case _:
assert False
assert b
b = False
match t:
case (0, 0):
assert False
case (a, bb) if 40 < a < bb < 100:
b = True
case _:
assert False
assert b
b = False
match t:
case (0, 0):
assert False
case (a, bb) if a == bb:
assert False
case _:
b = True
assert b
b = False
match r:
case (0, 0):
assert False
case (a, bb) if a == bb:
b = True
case _:
assert False
assert b
b = False
match t:
case (0, 0):
assert False
case (41 ... 43, 98 ... 100):
b = True
case _:
assert False
assert b
b = False
match r:
case (0, 0):
assert False
case (41 ... 43, 98 ... 100):
assert False
case _:
b = True
assert b
b = False
match t:
case (0, 0):
assert False
case (41 ... 43, 99 | 10) | (11 ... 13, 11 ... 13) | (-1, -1):
b = True
case _:
assert False
assert b
b = False
match r:
case (0, 0):
assert False
case (-1, -1) | (41 ... 43, 10 | 99) | (12 | 11, 9 | 11 ... 13):
b = True
case _:
assert False
assert b
test_tuple_match()
@test
def test_int_match():
n = 42
m = -99
b = False
match n:
case 0:
assert False
case 1:
assert False
case _:
b = True
assert b
b = False
match n:
case 0:
assert False
case 42:
b = True
case 99:
assert False
case _:
assert False
assert b
b = False
match n:
case 0:
assert False
case 1:
assert False
case _:
b = True
assert b
b = False
match m:
case 0:
assert False
case 42:
assert False
case -99:
b = True
case _:
assert False
assert b
b = False
match m:
case 0 ... 10:
assert False
case 12 ... 42:
assert False
case 42:
assert False
case _:
b = True
assert b
b = False
match n:
case 0 ... 10:
assert False
case 42 ... 100:
b = True
case 42:
assert False
case _:
assert False
assert b
b = False
match n:
case t if t < 10:
assert False
case t if 41 < t < 43:
b = True
case _:
assert False
assert b
test_int_match()
@test
def test_list_match():
v = [1, 2, 3, 4, 5]
e = list[int]()
b = False
match v:
case []:
assert False
case [1, 2, 3, 4]:
assert False
case [1, 2, 3, 4, 5]:
b = True
case [1, 2, 3, 4, 5, 6]:
assert False
case _:
assert False
assert b
b = False
match e:
case []:
b = True
case [1, 2, 3, 4]:
assert False
case [1, 2, 3, 4, 5]:
assert False
case [1, 2, 3, 4, 5, 6]:
assert False
case _:
assert False
assert b
b = False
match e:
case [...]:
b = True
case [1, 2, 3, 4]:
assert False
case [1, 2, 3, 4, 5]:
assert False
case [1, 2, 3, 4, 5, 6]:
assert False
case _:
assert False
assert b
b = False
match e:
case [_]:
assert False
case [1, 2, 3, 4]:
assert False
case [1, 2, 3, 4, 5]:
assert False
case [1, 2, 3, 4, 5, 6]:
assert False
case _:
b = True
assert b
b = False
match v:
case []:
assert False
case [1, ..., 4]:
assert False
case [1, ..., 5]:
b = True
case [1, ..., 6]:
assert False
case _:
assert False
assert b
b = False
match v:
case []:
assert False
case [_, ..., 4]:
assert False
case [_, ..., 5]:
b = True
case [_, ..., 6]:
assert False
case _:
assert False
assert b
b = False
match [5]:
case []:
assert False
case [_, ..., 4]:
assert False
case [_, ..., 5]:
assert False
case [_, ..., 6]:
assert False
case _:
b = True
assert b
b = False
match v:
case []:
assert False
case [..., 4]:
assert False
case [..., 5]:
b = True
case [..., 6]:
assert False
case _:
assert False
assert b
b = False
match v:
case []:
assert False
case [1, ...]:
b = True
case [2, ...]:
assert False
case [3, ...]:
assert False
case _:
assert False
assert b
b = False
match v:
case []:
assert False
case [2, ..., a, bb] if (a,bb) == (4,5):
assert False
case [1, ..., a, bb] if (a,bb) == (4,5):
b = True
case [3, ..., a, bb] if (a,bb) == (4,5):
assert False
case _:
assert False
assert b
b = False
match v:
case []:
assert False
case [2, ..., a, _, bb] if (a,bb) == (3,5):
assert False
case [1, ..., a, _, bb] if (a,bb) == (3,5):
b = True
case [3, ..., a, _, bb] if (a,bb) == (3,5):
assert False
case _:
assert False
assert b
b = False
match v:
case []:
assert False
case [1, _, 3, _, 5]:
b = True
case [_, _]:
assert False
case [_]:
assert False
case _:
assert False
assert b
b = False
match [[v]]:
case [[[]]]:
assert False
case [[[..., 4]]]:
assert False
case [[[..., 5]]]:
b = True
case [[[..., 6]]]:
assert False
case _:
assert False
assert b
b = False
match [[v]]:
case [[[]]]:
assert False
case [[[1, _, 3, _, 5]]]:
b = True
case [[[_, _]]]:
assert False
case [[[_]]]:
assert False
case _:
assert False
assert b
test_list_match()
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