TST: suppress deprecation warnings for compress (#22064)

Author: jorisvandenbossche

pandas/core/series.py

@@ -519,7 +519,8 @@ def compress(self, condition, *args, **kwargs):
         numpy.ndarray.compress
         """
         msg = ("Series.compress(condition) is deprecated. "
-               "Use Series[condition] instead.")
+               "Use 'Series[condition]' or "
+               "'np.asarray(series).compress(condition)' instead.")
         warnings.warn(msg, FutureWarning, stacklevel=2)
         nv.validate_compress(args, kwargs)
         return self[condition]

pandas/tests/series/test_analytics.py

@@ -595,15 +595,17 @@ def test_numpy_compress(self):
                    index=list('abcde'), name='foo')
         expected = Series(s.values.compress(cond),
                           index=list('ac'), name='foo')
-        tm.assert_series_equal(np.compress(cond, s), expected)
+        with tm.assert_produces_warning(FutureWarning, check_stacklevel=False):
+            tm.assert_series_equal(np.compress(cond, s), expected)
 
-        msg = "the 'axis' parameter is not supported"
-        tm.assert_raises_regex(ValueError, msg, np.compress,
-                               cond, s, axis=1)
+        with tm.assert_produces_warning(FutureWarning, check_stacklevel=False):
+            msg = "the 'axis' parameter is not supported"
+            tm.assert_raises_regex(ValueError, msg, np.compress,
+                                   cond, s, axis=1)
 
-        msg = "the 'out' parameter is not supported"
-        tm.assert_raises_regex(ValueError, msg, np.compress,
-                               cond, s, out=s)
+            msg = "the 'out' parameter is not supported"
+            tm.assert_raises_regex(ValueError, msg, np.compress,
+                                   cond, s, out=s)
 
     def test_round(self):
         self.ts.index.name = "index_name"

pandas/tests/series/test_api.py

@@ -424,19 +424,23 @@ def f(x):
         # compress
         # GH 6658
         s = Series([0, 1., -1], index=list('abc'))
-        result = np.compress(s > 0, s)
+        with tm.assert_produces_warning(FutureWarning, check_stacklevel=False):
+            result = np.compress(s > 0, s)
         tm.assert_series_equal(result, Series([1.], index=['b']))
 
-        result = np.compress(s < -1, s)
+        with tm.assert_produces_warning(FutureWarning, check_stacklevel=False):
+            result = np.compress(s < -1, s)
         # result empty Index(dtype=object) as the same as original
         exp = Series([], dtype='float64', index=Index([], dtype='object'))
         tm.assert_series_equal(result, exp)
 
         s = Series([0, 1., -1], index=[.1, .2, .3])
-        result = np.compress(s > 0, s)
+        with tm.assert_produces_warning(FutureWarning, check_stacklevel=False):
+            result = np.compress(s > 0, s)
         tm.assert_series_equal(result, Series([1.], index=[.2]))
 
-        result = np.compress(s < -1, s)
+        with tm.assert_produces_warning(FutureWarning, check_stacklevel=False):
+            result = np.compress(s < -1, s)
         # result empty Float64Index as the same as original
         exp = Series([], dtype='float64', index=Index([], dtype='float64'))
         tm.assert_series_equal(result, exp)