Fix few missed corrections

Author: HyukjinKwon

tests/cloudpickle_test.py

@@ -44,6 +44,7 @@
 from cloudpickle.cloudpickle import _find_module, _make_empty_cell, cell_set
 
 from .testutils import subprocess_pickle_echo
+from .testutils import assert_run_python_script
 
 
 HAVE_WEAKSET = hasattr(weakref, 'WeakSet')
@@ -766,30 +767,30 @@ def f3():
         def f4(x):
             return foo.method(x)
 
-        cloned = subprocess_pickle_echo(lambda x: x**2, protocol={protocol})
+        cloned = subprocess_pickle_echo(lambda x: x**2)
         assert cloned(3) == 9
 
-        cloned = subprocess_pickle_echo(f0, protocol={protocol})
+        cloned = subprocess_pickle_echo(f0)
         assert cloned(3) == 9
 
-        cloned = subprocess_pickle_echo(Foo, protocol={protocol})
+        cloned = subprocess_pickle_echo(Foo)
         assert cloned().method(2) == Foo().method(2)
 
-        cloned = subprocess_pickle_echo(Foo(), protocol={protocol})
+        cloned = subprocess_pickle_echo(Foo())
         assert cloned.method(2) == Foo().method(2)
 
-        cloned = subprocess_pickle_echo(f1, protocol={protocol})
+        cloned = subprocess_pickle_echo(f1)
         assert cloned()().method('a') == f1()().method('a')
 
-        cloned = subprocess_pickle_echo(f2, protocol={protocol})
+        cloned = subprocess_pickle_echo(f2)
         assert cloned(2) == f2(2)
 
-        cloned = subprocess_pickle_echo(f3, protocol={protocol})
+        cloned = subprocess_pickle_echo(f3)
         assert cloned() == f3()
 
-        cloned = subprocess_pickle_echo(f4, protocol={protocol})
+        cloned = subprocess_pickle_echo(f4)
         assert cloned(2) == f4(2)
-        """.format(protocol=self.protocol)
+        """
         assert_run_python_script(textwrap.dedent(code))
 
     @pytest.mark.skipif(sys.version_info >= (3, 0),

tests/testutils.py

@@ -28,7 +28,7 @@ def subprocess_pickle_echo(input_data):
     [1, 'a', None]
 
     """
-    pickled_input_data = dumps(input_data, protocol=protocol)
+    pickled_input_data = dumps(input_data)
     cmd = [sys.executable, __file__]  # run then pickle_echo() in __main__
     cloudpickle_repo_folder = op.normpath(
         op.join(op.dirname(__file__), '..'))