def test7_all_negative():
"""Test 7"""
data = math_data()
x = -4
y = -3
p_x = -2
p_y = -1
assert [get_pdot_x(x, y, p_y),
get_pdot_y(x, y, p_x)] == pytest.approx(data["test7"])
def test6_all_positive():
"""Test 6"""
data = math_data()
x = 1
y = 2
p_x = 3
p_y = 4
assert [get_pdot_x(x, y, p_y),
get_pdot_y(x, y, p_x)] == pytest.approx(data["test6"])
def test5_py_negative():
"""Test 5"""
data = math_data()
x = 0
y = 0
p_x = 0
p_y = -5
assert [get_pdot_x(x, y, p_y),
get_pdot_y(x, y, p_x)] == pytest.approx(data["test5"])
def test4_px_positive():
"""Test 4"""
data = math_data()
x = 0
y = 0
p_x = 2
p_y = 0
assert [get_pdot_x(x, y, p_y),
get_pdot_y(x, y, p_x)] == pytest.approx(data["test4"])
def test1_zeros():
"""Test 1"""
data = math_data()
x = 0
y = 0
p_x = 0
p_y = 0
assert [get_pdot_x(x, y, p_y),
get_pdot_y(x, y, p_x)] == pytest.approx(data["test1"])
def test8_all_mixed():
"""Test 8"""
data = math_data()
x = -1
y = 1
p_x = -3
p_y = 4
assert [get_pdot_x(x, y, p_y),
get_pdot_y(x, y, p_x)] == pytest.approx(data["test8"])