Add upgrade_firmware for BOS miner.

tests/miners_tests/test_braiins_os.py

@@ -0,0 +1,24 @@
+import pytest
+from unittest.mock import patch, mock_open
+from pyasic.ssh.braiins_os import BOSMinerSSH
+
+@pytest.fixture
+def bosminer_ssh():
+    return BOSMinerSSH(ip="192.168.1.100")
+
+@pytest.mark.asyncio
+async def test_upgrade_firmware_with_valid_file_location(bosminer_ssh):
+    with patch("pyasic.ssh.braiins_os.os.path.exists") as mock_exists, \
+         patch("pyasic.ssh.braiins_os.open", mock_open(read_data="data")) as mock_file, \
+         patch("pyasic.ssh.braiins_os.requests.get") as mock_get, \
+         patch.object(bosminer_ssh, "send_command") as mock_send_command:
+
+        mock_exists.return_value = False
+        file_location = "/path/to/firmware.tar.gz"
+
+        result = await bosminer_ssh.upgrade_firmware(file_location=file_location)
+
+        mock_send_command.assert_any_call(f"scp {file_location} root@{bosminer_ssh.ip}:/tmp/firmware.tar.gz")
+        mock_send_command.assert_any_call("tar -xzf /tmp/firmware.tar.gz -C /tmp")
+        mock_send_command.assert_any_call("sh /tmp/upgrade_firmware.sh")
+        assert result is not None