diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..609aebc
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,22 @@
+name: CI
+
+on: [pull_request]
+
+jobs:
+  run-tests:
+    strategy:
+      fail-fast: false
+      matrix:
+        st-version: [4]
+        # st-version: [3, 4]
+        # os: ["ubuntu-latest", "macOS-latest", "windows-latest"]
+        os: ["ubuntu-latest"]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v2
+      - uses: SublimeText/UnitTesting/actions/setup@v1
+        with:
+          # Details: https://github.com/SublimeText/UnitTesting/blob/master/actions/setup/action.yaml#L19
+          package-name: Phpcs
+          sublime-text-version: ${{ matrix.st-version }}
+      - uses: SublimeText/UnitTesting/actions/run-tests@v1
\ No newline at end of file
diff --git a/tests/test_phpcs.py b/tests/test_phpcs.py
new file mode 100644
index 0000000..de7cadf
--- /dev/null
+++ b/tests/test_phpcs.py
@@ -0,0 +1,30 @@
+import os
+import re
+import sys
+import sublime
+from unittest import TestCase
+
+
+from Phpcs.phpcs import Sniffer
+
+
+class TestDiffViewInternalFunctions(TestCase):
+    def test_we_can_build_up_the_correct_executable_string_when_we_prefix(self):
+        php_path = "/bin/php"
+        s = sublime.load_settings("phpcs.sublime-settings")
+
+        s.set("phpcs_php_prefix_path", php_path)
+        s.set("phpcs_commands_to_php_prefix", "Sniffer")
+
+        args = Sniffer().get_executable_args()
+        self.assertIn(php_path, args)
+
+    def test_we_can_build_up_the_correct_executable_string_when_we_dont_prefix(self):
+        s = sublime.load_settings("phpcs.sublime-settings")
+
+        s.set("phpcs_php_prefix_path", "/bin/php")
+        s.set("phpcs_commands_to_php_prefix", "")
+        s.set("phpcs_executable_path", "")
+
+        args = Sniffer().get_executable_args()
+        self.assertIn("phpcs", args)