diff --git a/pandas/tests/indexes/numeric/test_numeric.py b/pandas/tests/indexes/numeric/test_numeric.py
index 4416034795463..c1b21c5731684 100644
--- a/pandas/tests/indexes/numeric/test_numeric.py
+++ b/pandas/tests/indexes/numeric/test_numeric.py
@@ -12,14 +12,17 @@
 class TestFloatNumericIndex:
     @pytest.fixture(params=[np.float64, np.float32])
     def dtype(self, request):
+        """Returns floating point dtypes (64 or 32 bit)"""
         return request.param
 
     @pytest.fixture
     def mixed_index(self, dtype):
+        """Takes a list of mixed data types and turns it into list of floating point indices"""
         return Index([1.5, 2, 3, 4, 5], dtype=dtype)
 
     @pytest.fixture
     def float_index(self, dtype):
+        """Takes a list of floating data types and turns it into a list of indices"""
         return Index([0.0, 2.5, 5.0, 7.5, 10.0], dtype=dtype)
 
     @pytest.mark.parametrize(
@@ -233,10 +236,12 @@ def test_logical_compat(self, dtype):
 class TestNumericInt:
     @pytest.fixture
     def dtype(self, any_int_numpy_dtype):
+        """Returns any numpy integer dtype signed or unsigned"""
         return np.dtype(any_int_numpy_dtype)
 
     @pytest.fixture
     def simple_index(self, dtype):
+        """Fixture returns an range of indices from 0 to 20 incrementing by 2 as integers"""
         return Index(range(0, 20, 2), dtype=dtype)
 
     def test_is_monotonic(self):
@@ -325,6 +330,7 @@ def test_prevent_casting(self, simple_index):
 class TestIntNumericIndex:
     @pytest.fixture(params=[np.int64, np.int32, np.int16, np.int8])
     def dtype(self, request):
+        """Returns singned integer dtype (64, 32, 16, or 8 bit)"""
         return request.param
 
     def test_constructor_from_list_no_dtype(self):