TST: move generic/methods/ files to frame/methods/ (#38871)

Author: jbrockmendel

doc/source/development/test_writing.rst

@@ -149,13 +149,6 @@ be located.
             ``frame_or_series`` fixture, by convention it goes in the
             ``tests.frame`` file.
 
-      - tests.generic.methods.test_mymethod
-
-        .. note::
-
-           The generic/methods/ directory is only for methods with tests
-           that are fully parametrized over Series/DataFrame
-
 7. Is your test for an Index method, not depending on Series/DataFrame?
    This test likely belongs in one of:
 

pandas/tests/generic/methods/test_dot.py renamed to pandas/tests/frame/methods/test_dot.py

@@ -15,6 +15,15 @@
 
 
 class TestDataFrameToRecords:
+    def test_to_records_timeseries(self):
+        index = date_range("1/1/2000", periods=10)
+        df = DataFrame(np.random.randn(10, 3), index=index, columns=["a", "b", "c"])
+
+        result = df.to_records()
+        assert result["index"].dtype == "M8[ns]"
+
+        result = df.to_records(index=False)
+
     def test_to_records_dt64(self):
         df = DataFrame(
             [["one", "two", "three"], ["four", "five", "six"]],

pandas/tests/generic/methods/test_first_valid_index.py renamed to pandas/tests/frame/methods/test_first_valid_index.py

@@ -2221,15 +2221,6 @@ def test_frame_datetime64_mixed_index_ctor_1681(self):
         d = DataFrame({"A": "foo", "B": ts}, index=dr)
         assert d["B"].isna().all()
 
-    def test_frame_timeseries_to_records(self):
-        index = date_range("1/1/2000", periods=10)
-        df = DataFrame(np.random.randn(10, 3), index=index, columns=["a", "b", "c"])
-
-        result = df.to_records()
-        result["index"].dtype == "M8[ns]"
-
-        result = df.to_records(index=False)
-
     def test_frame_timeseries_column(self):
         # GH19157
         dr = date_range(start="20130101T10:00:00", periods=3, freq="T", tz="US/Eastern")