Add a test and run in GitHub Actions

.github/workflows/ci.yml

@@ -0,0 +1,21 @@
+name: CI
+
+on: [push, pull_request]
+
+jobs:
+  run-tests:
+    strategy:
+      fail-fast: false
+      matrix:
+        st-version: [3, 4]
+        os: ["ubuntu-latest", "macOS-latest", "windows-latest"]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v2
+      - uses: SublimeText/UnitTesting/actions/setup@v1
+        with:
+          sublime-text-version: ${{ matrix.st-version }}
+      - uses: SublimeText/UnitTesting/actions/run-tests@v1
+        with:
+          coverage: true
+      - uses: codecov/codecov-action@v3

tests/test_phpcs.py

@@ -0,0 +1,21 @@
+import os
+import re
+import sys
+import sublime
+
+
+from unittesting import (
+    AWAIT_WORKER,
+    DeferrableTestCase,
+)
+from Phpcs.phpcs import Sniffer
+
+
+class TestDiffViewInternalFunctions(DeferrableTestCase):
+    def test_something(self):
+        php_path = "/bin/php"
+        s = sublime.load_settings("phpcs.sublime-settings")
+        s.set("phpcs_php_prefix_path", php_path)
+
+        args = Sniffer().get_executable_args()
+        self.assertIn(php_path, args)