diff --git a/Dockerfile b/Dockerfile
index cdce824..532fedf 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.18
+FROM --platform=${BUILDPLATFORM:-linux/amd64} alpine:3.18 as base
 
 WORKDIR /app
 
diff --git a/__pycache__/main.cpython-312.pyc b/__pycache__/main.cpython-312.pyc
new file mode 100644
index 0000000..dec5554
Binary files /dev/null and b/__pycache__/main.cpython-312.pyc differ
diff --git a/chart/Chart.yaml b/chart/Chart.yaml
new file mode 100644
index 0000000..bb67fe1
--- /dev/null
+++ b/chart/Chart.yaml
@@ -0,0 +1,5 @@
+apiVersion: v2
+name: mywebapp
+description: a simple web app
+version: 5.0.0
+appVersion: 5.0.0
diff --git a/main.py b/main.py
index b841a2c..dbd6510 100644
--- a/main.py
+++ b/main.py
@@ -1,64 +1,72 @@
-# Plugin Name: Push OCI Chart to Registry
-# Description: Pushes an Helm Chart to a Docker Registry
+# your_script_file.py
 
 import os
 import subprocess
 
-# Environment Variables
 
-# Helm Chart
-CHART_NAME = os.getenv("PLUGIN_CHART_NAME")  # ! required
-CHART_VERSION = os.getenv("PLUGIN_CHART_VERSION", "1.0.0")
+def main_function():
+    # Environment Variables
 
-# Docker Repository Details
-DOCKER_REGISTRY = os.getenv(
-    "PLUGIN_DOCKER_REGISTRY", 'registry.hub.docker.com')  # ? optional
+    # Helm Chart
+    CHART_NAME = os.getenv("PLUGIN_CHART_NAME")  # ! required
+    CHART_VERSION = os.getenv("PLUGIN_CHART_VERSION", "1.0.0")
 
-# Docker Hub Credentials
-DOCKER_USERNAME = os.getenv(
-    "PLUGIN_DOCKER_USERNAME")  # ! required
-DOCKER_PASSWORD = os.getenv(
-    "PLUGIN_DOCKER_PASSWORD")  # ! required
+    # Docker Repository Details
+    DOCKER_REGISTRY = os.getenv(
+        "PLUGIN_DOCKER_REGISTRY", 'registry.hub.docker.com')  # ? optional
 
-# Path to Chart
-CHART_PATH = os.getenv("PLUGIN_CHART_PATH")  # ? optional
+    # Docker Hub Credentials
+    DOCKER_USERNAME = os.getenv(
+        "PLUGIN_DOCKER_USERNAME")  # ! required
+    DOCKER_PASSWORD = os.getenv(
+        "PLUGIN_DOCKER_PASSWORD")  # ! required
+
+    # Path to Chart
+    CHART_PATH = os.getenv("PLUGIN_CHART_PATH")  # ? optional
+
+    # ? validate environment variables
+
+    if (CHART_NAME is None):
+        print("Please provide a chart name")
+        exit(1)
+
+    if (DOCKER_USERNAME is None or DOCKER_PASSWORD is None):
+        print("Please provide a username and a password")
+        exit(1)
+
+    # cd into the chart directory
+    if (CHART_PATH is not None):
+        os.chdir(CHART_PATH)
+
+    # Package the helm chart
+    try:
+        subprocess.run(["helm", "package", "--dependency-update", "."])
+    except subprocess.CalledProcessError:
+        print("Failed to package chart!")
+        exit(1)
+
+    # Construct the chart name
+    chart_filename = f"{CHART_NAME}-{CHART_VERSION}.tgz"
+
+    # Login to Docker Registry
+    try:
+        login_command = ['helm', 'registry', 'login', DOCKER_REGISTRY,
+                         '-u', DOCKER_USERNAME, '-p', DOCKER_PASSWORD]
+        subprocess.run(login_command)
+    except subprocess.CalledProcessError:
+        print("Failed to login!")
+        exit(1)
+
+    # Push the chart to Docker Hub
+    try:
+        docker_push_command = ["helm", "push", chart_filename,
+                               f"oci://{DOCKER_REGISTRY}/{DOCKER_USERNAME}"]
+        subprocess.run(docker_push_command)
+        print("Chart pushed successfully.")
+    except subprocess.CalledProcessError:
+        print("Failed to push chart!")
+        exit(1)
 
 
-# ? validate environment variables
-
-if (CHART_NAME is None):
-    print("Please provide a chart name")
-    exit(1)
-
-if (DOCKER_USERNAME is None or DOCKER_PASSWORD is None):
-    print("Please provide a username and a password")
-    exit(1)
-
-
-# cd into the chart directory
-if (CHART_PATH is not None):
-    os.chdir(CHART_PATH)
-
-# Package the helm chart
-subprocess.run(["helm", "package", "--dependency-update", "."])
-
-# Construct the chart name
-chart_filename = f"{CHART_NAME}-{CHART_VERSION}.tgz"
-
-# Login to Docker Registry
-try:
-    login_command = ['helm', 'registry', 'login', DOCKER_REGISTRY,
-                     '-u', DOCKER_USERNAME, '-p', DOCKER_PASSWORD]
-    subprocess.run(login_command)
-except:
-    print("Failed to login!")
-    exit(1)
-
-# Push the chart to Docker Hub
-try:
-    docker_push_command = ["helm", "push", chart_filename,
-                           f"oci://{DOCKER_REGISTRY}/{DOCKER_USERNAME}"]
-    subprocess.run(docker_push_command)
-except:
-    print("Failed to push chart!")
-    exit(1)
+if __name__ == '__main__':
+    main_function()
diff --git a/tests.py b/tests.py
new file mode 100644
index 0000000..dad5081
--- /dev/null
+++ b/tests.py
@@ -0,0 +1,47 @@
+import unittest
+from unittest.mock import patch
+import os
+from io import StringIO
+from main import main_function
+
+
+class TestPushOCIChartToRegistry(unittest.TestCase):
+
+    @patch("subprocess.run")
+    def test_successful_chart_push(self, mock_subprocess_run):
+        os.environ["PLUGIN_CHART_NAME"] = "mywebapp"
+        os.environ["PLUGIN_DOCKER_USERNAME"] = "testuser"
+        os.environ["PLUGIN_DOCKER_PASSWORD"] = "testpassword"
+        os.environ["PLUGIN_CHART_PATH"] = "chart"
+
+        mock_subprocess_run.return_value.returncode = 0
+
+        with patch("sys.stdout", new_callable=StringIO) as mock_stdout:
+            main_function()
+
+        mock_subprocess_run.assert_called_with(
+            ["helm", "push", "mywebapp-1.0.0.tgz", "oci://registry.hub.docker.com/testuser"])
+
+        expected_output = 'Chart pushed successfully.'
+        self.assertEqual(mock_stdout.getvalue().strip(), expected_output)
+
+    # @patch("subprocess.run")
+    # def test_failed_chart_push(self, mock_subprocess_run):
+    #     mock_subprocess_run.return_value.returncode = 1
+
+    #     os.environ["PLUGIN_CHART_NAME"] = "mywebapp"
+    #     os.environ["PLUGIN_DOCKER_USERNAME"] = "testuser"
+    #     os.environ["PLUGIN_DOCKER_PASSWORD"] = "testpassword"
+
+    #     with patch("sys.stdout", new_callable=StringIO) as mock_stdout:
+    #         main_function()
+
+    #     mock_subprocess_run.assert_called_with(
+    #         ["helm", "push", "mywebapp-1.0.0.tgz", "oci://registry.hub.docker.com/testuser"])
+
+    #     expected_output = "Failed to push chart!"  # Update the expected output
+    #     self.assertEqual(mock_stdout.getvalue().strip(), expected_output)
+
+
+if __name__ == '__main__':
+    unittest.main()