Merge pull request matplotlib#27466 from shriyakalakata/eventplot

Add test_eventplot to test_datetime.py

Author: QuLogic

lib/matplotlib/tests/test_datetime.py

@@ -330,11 +330,50 @@ def test_errorbar(self):
                      uplims=True, xuplims=True,
                      label='Data')
 
-    @pytest.mark.xfail(reason="Test for eventplot not written yet")
     @mpl.style.context("default")
     def test_eventplot(self):
-        fig, ax = plt.subplots()
-        ax.eventplot(...)
+        mpl.rcParams["date.converter"] = "concise"
+
+        fig, (ax1, ax2, ax3) = plt.subplots(3, 1, layout="constrained")
+
+        x_dates1 = np.array([datetime.datetime(2020, 6, 30),
+                             datetime.datetime(2020, 7, 22),
+                             datetime.datetime(2020, 8, 3),
+                             datetime.datetime(2020, 9, 14),],
+                            dtype=np.datetime64,
+                            )
+
+        ax1.eventplot(x_dates1)
+
+        np.random.seed(19680801)
+
+        start_date = datetime.datetime(2020, 7, 1)
+        end_date = datetime.datetime(2020, 10, 15)
+        date_range = end_date - start_date
+
+        dates1 = start_date + np.random.rand(30) * date_range
+        dates2 = start_date + np.random.rand(10) * date_range
+        dates3 = start_date + np.random.rand(50) * date_range
+
+        colors1 = ['C1', 'C2', 'C3']
+        lineoffsets1 = np.array([1, 6, 8])
+        linelengths1 = [5, 2, 3]
+
+        ax2.eventplot([dates1, dates2, dates3],
+                      colors=colors1,
+                      lineoffsets=lineoffsets1,
+                      linelengths=linelengths1)
+
+        lineoffsets2 = np.array([
+            datetime.datetime(2020, 7, 1),
+            datetime.datetime(2020, 7, 15),
+            datetime.datetime(2020, 8, 1)
+        ], dtype=np.datetime64)
+
+        ax3.eventplot([dates1, dates2, dates3],
+                      colors=colors1,
+                      lineoffsets=lineoffsets2,
+                      linelengths=linelengths1)
 
     @mpl.style.context("default")
     def test_fill(self):