From 7c060c065888ccdd4599e9d38507702f0029ac7d Mon Sep 17 00:00:00 2001
From: WillCodeForCats <48533968+WillCodeForCats@users.noreply.github.com>
Date: Tue, 18 Aug 2026 13:29:34 -0700
Subject: [PATCH 1/5] Update .gitignore

---
 .gitignore | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.gitignore b/.gitignore
index f0ccd54e..f8c2f2a0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 .DS_Store
 solaredge-modbus-multi.bbprojectd
 /megalinter-reports
+*.pyc

From cc44c498f8901b3699c00d173b120083a75abefc Mon Sep 17 00:00:00 2001
From: WillCodeForCats <48533968+WillCodeForCats@users.noreply.github.com>
Date: Tue, 18 Aug 2026 13:34:03 -0700
Subject: [PATCH 2/5] Fix incorrect use of 'or' comparison for ipaddress

---
 custom_components/solaredge_modbus_multi/helpers.py | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/custom_components/solaredge_modbus_multi/helpers.py b/custom_components/solaredge_modbus_multi/helpers.py
index 92b4e0f0..7ca394e9 100644
--- a/custom_components/solaredge_modbus_multi/helpers.py
+++ b/custom_components/solaredge_modbus_multi/helpers.py
@@ -51,9 +51,7 @@ def update_accum(self, accum_value: int) -> None:
 def host_valid(host):
     """Return True if hostname or IP address is valid."""
     try:
-        if ipaddress.ip_address(host).version == (4 or 6):
-            return True
-
+        return ipaddress.ip_address(host).version in (4, 6)
     except ValueError:
         return DOMAIN_REGEX.match(host)
 

From 708eaade84240663bf8415ae8a8a793c84d657ae Mon Sep 17 00:00:00 2001
From: WillCodeForCats <48533968+WillCodeForCats@users.noreply.github.com>
Date: Tue, 18 Aug 2026 13:38:03 -0700
Subject: [PATCH 3/5] Add pytest-homeassistant-custom-component

---
 requirements-test.txt | 2 ++
 tests/conftest.py     | 3 +++
 2 files changed, 5 insertions(+)
 create mode 100644 tests/conftest.py

diff --git a/requirements-test.txt b/requirements-test.txt
index 582ad801..2a2093f4 100644
--- a/requirements-test.txt
+++ b/requirements-test.txt
@@ -1,2 +1,4 @@
 pytest>=8.0.0
 awesomeversion>=25.5.0
+pymodbus>=3.8.3
+pytest-homeassistant-custom-component>=0.13.0
diff --git a/tests/conftest.py b/tests/conftest.py
new file mode 100644
index 00000000..79a6b013
--- /dev/null
+++ b/tests/conftest.py
@@ -0,0 +1,3 @@
+"""Activate pytest-homeassistant-custom-component for all tests."""
+
+pytest_plugins = "pytest_homeassistant_custom_component"

From 1f06b143b76394cc2151cca154e2d09f85ae615a Mon Sep 17 00:00:00 2001
From: WillCodeForCats <48533968+WillCodeForCats@users.noreply.github.com>
Date: Tue, 18 Aug 2026 13:38:11 -0700
Subject: [PATCH 4/5] Update pyproject.toml

---
 pyproject.toml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pyproject.toml b/pyproject.toml
index a8b297ce..5224e1ac 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,3 +4,8 @@ line-length = 88
 [tool.ruff.lint]
 extend-select = ["I"]
 ignore = ["E701"]
+
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+pythonpath = ["."]
+asyncio_mode = "auto"

From b76ee18f7be8fa134136789e566e23cf7e53ae82 Mon Sep 17 00:00:00 2001
From: WillCodeForCats <48533968+WillCodeForCats@users.noreply.github.com>
Date: Tue, 18 Aug 2026 13:42:01 -0700
Subject: [PATCH 5/5] Create test_sensor_scale_factor.py

---
 tests/test_sensor_scale_factor.py | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 tests/test_sensor_scale_factor.py

diff --git a/tests/test_sensor_scale_factor.py b/tests/test_sensor_scale_factor.py
new file mode 100644
index 00000000..e4f5df64
--- /dev/null
+++ b/tests/test_sensor_scale_factor.py
@@ -0,0 +1,19 @@
+"""Tests for SolarEdgeSensorBase.scale_factor in sensor.py."""
+
+import pytest
+
+from custom_components.solaredge_modbus_multi.sensor import SolarEdgeSensorBase
+
+
+@pytest.mark.parametrize(
+    "value, sf, expected",
+    [
+        (100, -2, 1.0),
+        (500, 1, 5000),
+        (0, -3, 0.0),
+        (-250, -1, -25.0),
+        (1, 0, 1),
+    ],
+)
+def test_scale_factor(value, sf, expected):
+    assert SolarEdgeSensorBase.scale_factor(None, value, sf) == expected