Merge remote-tracking branch 'upstream/master' into arrow-string-array-dtype

Author: simonjayhawkins

pandas/tests/extension/json/array.py

@@ -39,6 +39,7 @@
     ExtensionDtype,
 )
 from pandas.api.types import is_bool_dtype
+from pandas.core.arrays.string_arrow import ArrowStringDtype
 
 
 class JSONDtype(ExtensionDtype):
@@ -194,7 +195,7 @@ def astype(self, dtype, copy=True):
             if copy:
                 return self.copy()
             return self
-        elif isinstance(dtype, StringDtype):
+        elif isinstance(dtype, (StringDtype, ArrowStringDtype)):
             value = self.astype(str)  # numpy doesn'y like nested dicts
             return dtype.construct_array_type()._from_sequence(value, copy=False)