extend test_eq_type

previously this would pass tests when comparting tensors with different dtypes

example: `test_eq_type(torch.zeros(10), torch.zeros(10, dtype=torch.float64))`  would pass

now it does not

Author: ddobrinskiy

fastcore/_modidx.py

@@ -594,4 +594,4 @@
                                 'fastcore.xtras.truncstr': ('xtras.html#truncstr', 'fastcore/xtras.py'),
                                 'fastcore.xtras.untar_dir': ('xtras.html#untar_dir', 'fastcore/xtras.py'),
                                 'fastcore.xtras.utc2local': ('xtras.html#utc2local', 'fastcore/xtras.py'),
-                                'fastcore.xtras.walk': ('xtras.html#walk', 'fastcore/xtras.py')}}}
+                                'fastcore.xtras.walk': ('xtras.html#walk', 'fastcore/xtras.py')}}}

fastcore/test.py

@@ -41,7 +41,8 @@ def test_eq_type(a,b):
     "`test` that `a==b` and are same type"
     test_eq(a,b)
     test_eq(type(a),type(b))
-    if isinstance(a,(list,tuple)): test_eq(map(type,a),map(type,b))
+    if isinstance(a,(list,tuple)): test_eq(map(type,a),map(type,b)) # type of each element
+    if isinstance(a, (torch.Tensor, pd.Series, np.ndarray)): test_eq(a.dtype, b.dtype) # dtypes of both tensors
 
 # %% ../nbs/00_test.ipynb 27
 def test_ne(a,b):