def test_basic_parser():
link(A, B)
link(A, C)
link(B, C)
set_angle('ABC', 90)
set_angle('ACB', 30)
assert get_angle('BAC') == 60
clear()
def test_parser_example2():
link(A, B, C, E)
link(B, D)
link(D, E)
set_angle('ABD', 120)
set_angle('BDE', 30)
set_length('BD', 210)
result = get_length('DE')
assert abs(result - (3**(1/2) / 2) * 210) < 1e-6
clear()
def test_parser_example3():
link(A, B)
link(A, F)
link(A, D)
link(A, C)
link(B, F, D, C)
set_angle('ABC', 36)
set_angle('ACB', 76)
split_angle('BAC', 'AF', ratio=0.5)
set_common_vertex_angles('A', ['B', 'F', 'D', 'C'])
perpendicular('AD', 'BC')
assert round(get_angle('DAF'), 6) == 20
clear()
def test_advanced_parser():
link(A, D, B)
link(A, E, C)
link(D, F, C)
link(B, F, E)
link(B, C)
set_angle('BAC', 45)
set_angle('ABE', 40)
set_angle('ACD', 20)
assert round(get_angle('EFC'), 6) == 75
clear()
def test_parser_example1():
link(A, D)
link(A, B)
link(A, E, C)
link(B, E, D)
link(B, C)
set_angle('BAC', 60)
set_angle('ACB', 30)
set_angle('ADB', 45)
set_angle('ABD', 45)
set_angle('BAD', 90)
set_angle('ABC', 90)
assert round(get_angle('AEB'), 6) == 75
clear()