fixed regex pattern to match sklearn output

Author: pattplatt

aeon/anomaly_detection/whole_series/tests/test_rockad.py

@@ -59,8 +59,10 @@ def test_rockad_incorrect_input():
 
     with pytest.raises(
         ValueError,
-        match="""Expected n_neighbors <= n_samples_fit, but n_neighbors = 100,
-        n_samples_fit = 10, n_samples = 3""",
+        match=(
+            r"Expected n_neighbors <= n_samples_fit, but n_neighbors = 100, "
+            r"n_samples_fit = 10, n_samples = 3"
+        ),
     ):
         ad = ROCKAD(n_estimators=100, n_kernels=10, n_neighbors=100)
         ad.fit(train_series)