revert others changes

salt/modules/netmiko_mod.py

@@ -576,7 +576,10 @@ def send_config(
     config_commands = [line for line in file_str.splitlines() if line.strip()]
     kwargs = clean_kwargs(**kwargs)
     if "netmiko.conn" in __proxy__:
-        conn = __proxy__["netmiko.conn"]()
+        if __proxy__["netmiko.conn"]().is_alive():
+            conn = __proxy__["netmiko.conn"]()
+        else:
+            conn, kwargs = _prepare_connection(**__proxy__["netmiko.args"]())
     else:
         conn, kwargs = _prepare_connection(**kwargs)
     if commit:

tests/unit/modules/test_netmiko_mod.py

@@ -0,0 +1,48 @@
+import salt.modules.netmiko_mod as netmiko_mod
+from tests.support.mixins import LoaderModuleMockMixin
+from tests.support.unit import TestCase
+
+
+class MockNetmikoConnection:
+    def is_alive(self):
+        return False
+
+    def send_config_set(self, *args, **kwargs):
+        return args, kwargs
+
+
+def mock_netmiko_args():
+    return {"user": "salt", "password": "password"}
+
+
+def mock_prepare_connection(**kwargs):
+    return MockNetmikoConnection(), kwargs
+
+
+def mock_file_apply_template_on_contents(*args):
+    return args[0]
+
+
+class NetmikoTestCase(TestCase, LoaderModuleMockMixin):
+    def setup_loader_modules(self):
+        return {
+            netmiko_mod: {
+                "__salt__": {
+                    "file.apply_template_on_contents": mock_file_apply_template_on_contents
+                },
+                "__proxy__": {
+                    "netmiko.conn": MockNetmikoConnection,
+                    "netmiko.args": mock_netmiko_args,
+                },
+                "_prepare_connection": mock_prepare_connection,
+            }
+        }
+
+    def test_send_config(self):
+        """
+        Test netmiko.send_config function
+        """
+        _, ret = netmiko_mod.send_config(config_commands=["ls", "echo hello world"])
+        self.assertEqual(ret.get("config_commands"), ["ls", "echo hello world"])
+        self.assertEqual(ret.get("user"), "salt")
+        self.assertEqual(ret.get("password"), "password")