diff --git a/lib/matplotlib/tests/test_datetime.py b/lib/matplotlib/tests/test_datetime.py
index 276b7c179afe..ca8b746bad0d 100644
--- a/lib/matplotlib/tests/test_datetime.py
+++ b/lib/matplotlib/tests/test_datetime.py
@@ -32,11 +32,42 @@ def test_axhline(self):
fig, ax = plt.subplots()
ax.axhline(...)
- @pytest.mark.xfail(reason="Test for axhspan not written yet")
@mpl.style.context("default")
def test_axhspan(self):
- fig, ax = plt.subplots()
- ax.axhspan(...)
+ mpl.rcParams["date.converter"] = 'concise'
+
+ start_date = datetime.datetime(2023, 1, 1)
+ dates = [start_date + datetime.timedelta(days=i) for i in range(31)]
+ numbers = list(range(1, 32))
+
+ fig, (ax1, ax2, ax3) = plt.subplots(3, 1,
+ constrained_layout=True,
+ figsize=(10, 12))
+
+ ax1.plot(dates, numbers, marker='o', color='blue')
+ for i in range(0, 31, 2):
+ ax1.axhspan(ymin=i+1, ymax=i+2, facecolor='green', alpha=0.5)
+ ax1.set_title('Datetime vs. Number')
+ ax1.set_xlabel('Date')
+ ax1.set_ylabel('Number')
+
+ ax2.plot(numbers, dates, marker='o', color='blue')
+ for i in range(0, 31, 2):
+ ymin = start_date + datetime.timedelta(days=i)
+ ymax = ymin + datetime.timedelta(days=1)
+ ax2.axhspan(ymin=ymin, ymax=ymax, facecolor='green', alpha=0.5)
+ ax2.set_title('Number vs. Datetime')
+ ax2.set_xlabel('Number')
+ ax2.set_ylabel('Date')
+
+ ax3.plot(dates, dates, marker='o', color='blue')
+ for i in range(0, 31, 2):
+ ymin = start_date + datetime.timedelta(days=i)
+ ymax = ymin + datetime.timedelta(days=1)
+ ax3.axhspan(ymin=ymin, ymax=ymax, facecolor='green', alpha=0.5)
+ ax3.set_title('Datetime vs. Datetime')
+ ax3.set_xlabel('Date')
+ ax3.set_ylabel('Date')
@pytest.mark.xfail(reason="Test for axline not written yet")
@mpl.style.context("default")
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