def test_new_from_value():
s = Scalar.new_from_value(False)
assert s.dtype == bool
assert s.value == False
s2 = Scalar.new_from_value(-1.1)
assert s2.dtype == 'FP64'
assert s2.value == -1.1
def test_new_from_type():
s = Scalar.new_from_type(dtypes.INT8)
assert s.dtype == 'INT8'
assert s.value == 0 # must hold a value; initialized to 0
s2 = Scalar.new_from_type(bool)
assert s2.dtype == 'BOOL'
assert s2.value == False # must hold a value; initialized to False
def test_truthy(s):
assert s, 's did not register as truthy'
with pytest.raises(AssertionError):
assert not s
s2 = Scalar.new_from_value(True)
assert s2
with pytest.raises(AssertionError):
assert not s2
def test_clear(s):
assert s.value == 5
s.clear()
assert s.value == 0 # must hold a value; reset to 0
s2 = Scalar.new_from_value(True)
assert s2.value == True
s2.clear()
assert s2.value == False # must hold a value; reset to False
def test_assign_scalar(v):
result = Vector.new_from_values([1, 3, 4, 5, 6], [9, 9, 2, 9, 0])
w = Vector.new_from_existing(v)
w.assign[[1, 3, 5]] = 9
assert w == result
w = Vector.new_from_existing(v)
w.assign[1::2] = 9
assert w == result
w = Vector.new_from_values([0, 1, 2], [1, 1, 1])
s = Scalar.new_from_value(9)
w.assign[:] = s
assert w == Vector.new_from_values([0, 1, 2], [9, 9, 9])
def s():
return Scalar.new_from_value(5)
def test_new_from_existing(s):
s2 = Scalar.new_from_existing(s)
assert s2.dtype == s.dtype
assert s2.value == s.value