ENH: Make sure to return int for indices

Author: jseabold

pandas/util/testing.py

@@ -941,8 +941,8 @@ def _gen_unique_rand(rng, _extra_size):
         extra_size *= 1.05
         ind = _gen_unique_rand(random_state, extra_size)
 
-    j = np.floor(ind * 1. / nrows)
-    i = (ind - j * nrows)
+    j = np.floor(ind * 1. / nrows).astype(int)
+    i = (ind - j * nrows).astype(int)
     return i.tolist(), j.tolist()