added test_loglog in test_datetime.py

dchen2438 · dchen2438 · commit f5fd5fbac337 · 2023-12-04T03:57:52.000Z
diff --git a/lib/matplotlib/tests/test_datetime.py b/lib/matplotlib/tests/test_datetime.py
@@ -426,11 +426,15 @@ def test_imshow(self):
         fig, ax = plt.subplots()
         ax.imshow(...)
 
-    @pytest.mark.xfail(reason="Test for loglog not written yet")
     @mpl.style.context("default")
     def test_loglog(self):
-        fig, ax = plt.subplots()
-        ax.loglog(...)
+        mpl.rcParams["date.converter"] = 'concise'
+        fig, (ax1, ax2, ax3) = plt.subplots(3, 1, layout='constrained')
+        x = np.arange(np.datetime64('2023-12-01'), np.datetime64('2023-12-06'))
+        y = 10 ** np.arange(5)
+        ax1.loglog(x, y)
+        ax2.loglog(y, x)
+        ax3.loglog(x, x)
 
     @pytest.mark.xfail(reason="Test for matshow not written yet")
     @mpl.style.context("default")
