Add a test for int/float parameter type checking (#16741)

A parameter of type int should accept int and string, but not float.
A parameter of type float should accept float, int, and string.

Also reset the arguments in another test so that it runs cleanly.  This
agrees with what all the other tests are doing.

test/units/module_utils/test_basic.py

@@ -353,6 +353,51 @@ class TestModuleUtilsBasic(unittest.TestCase):
                 supports_check_mode=True,
             )
 
+    def test_module_utils_basic_ansible_module_type_check(self):
+        from ansible.module_utils import basic
+
+        arg_spec = dict(
+            foo = dict(type='float'),
+            foo2 = dict(type='float'),
+            foo3 = dict(type='float'),
+            bar = dict(type='int'),
+            bar2 = dict(type='int'),
+        )
+
+        # should test ok
+        args = json.dumps(dict(ANSIBLE_MODULE_ARGS={
+            "foo": 123.0, # float
+            "foo2": 123, # int
+            "foo3": "123", # string
+            "bar": 123, # int
+            "bar2": "123", # string
+        }))
+
+        with swap_stdin_and_argv(stdin_data=args):
+            basic._ANSIBLE_ARGS = None
+            am = basic.AnsibleModule(
+                argument_spec = arg_spec,
+                no_log=True,
+                check_invalid_arguments=False,
+                add_file_common_args=True,
+                supports_check_mode=True,
+            )
+
+        # fail, because bar does not accept floating point numbers
+        args = json.dumps(dict(ANSIBLE_MODULE_ARGS={"bar": 123.0}))
+
+        with swap_stdin_and_argv(stdin_data=args):
+            basic._ANSIBLE_ARGS = None
+            self.assertRaises(
+                SystemExit,
+                basic.AnsibleModule,
+                argument_spec = arg_spec,
+                no_log=True,
+                check_invalid_arguments=False,
+                add_file_common_args=True,
+                supports_check_mode=True,
+            )
+
     def test_module_utils_basic_ansible_module_load_file_common_arguments(self):
         from ansible.module_utils import basic
         basic._ANSIBLE_ARGS = None
@@ -603,6 +648,7 @@ class TestModuleUtilsBasic(unittest.TestCase):
 
     def test_module_utils_basic_ansible_module_user_and_group(self):
         from ansible.module_utils import basic
+        basic._ANSIBLE_ARGS = None
 
         am = basic.AnsibleModule(
             argument_spec = dict(),