def naive_trace_endpoint_test():
i_x_j_y = naive_trace(X0, Y0, X0+1, Y0+1)
ii, x, jj, y = zip(*i_x_j_y)
yield ok_, x[0] == X0
yield ok_, y[0] == Y0
yield ok_, x[-1] == X0+1
yield ok_, y[-1] == Y0+1
def naive_trace_endpoint_test():
i_x_j_y = naive_trace(X0, Y0, X0 + 1, Y0 + 1)
ii, x, jj, y = zip(*i_x_j_y)
yield ok_, x[0] == X0
yield ok_, y[0] == Y0
yield ok_, x[-1] == X0 + 1
yield ok_, y[-1] == Y0 + 1
def naive_trace_left_test():
path = naive_trace(X0, Y0, X0-1, Y0)
oracle = [
(4, 4.2, 1, 1.2),
(4, 4.0, 1, 1.2),
(3, 3.2, 1, 1.2), ]
for (pj, px, pi, py), (oj, ox, oi, oy) in zip(path, oracle):
yield ok_, pj == oj, "j doesn't match"
yield ok_, pi == oi, "i doesn't match"
yield assert_almost_equal, px, ox
yield assert_almost_equal, py, oy
def naive_trace_down_test():
path = naive_trace(X0, Y0, X0, Y0 - 1)
oracle = [
(4, 4.2, 1, 1.2),
(4, 4.2, 1, 1.0),
(4, 4.2, 0, 0.2),
]
for (pj, px, pi, py), (oj, ox, oi, oy) in zip(path, oracle):
yield ok_, pj == oj, "j doesn't match"
yield ok_, pi == oi, "i doesn't match"
yield assert_almost_equal, px, ox
yield assert_almost_equal, py, oy