Add tests for geometry/curve

harryzcy · harryzcy · commit 17d7b268e518 · 2020-10-14T19:24:17.000+08:00
diff --git a/sympy/geometry/tests/test_curve.py b/sympy/geometry/tests/test_curve.py
@@ -33,6 +33,7 @@ def test_curve():
     assert c.plot_interval() == [t, 0, 2]
     assert c.plot_interval(z) == [z, 0, 2]
 
+    assert Curve([x, x], (x, 0, 1)).rotate(pi/2) == Curve([-x, x], (x, 0, 1))
     assert Curve([x, x], (x, 0, 1)).rotate(pi/2, (1, 2)).scale(2, 3).translate(
         1, 3).arbitrary_point(s) == \
         Line((0, 0), (1, 1)).rotate(pi/2, (1, 2)).scale(2, 3).translate(
