add github action for running the tests

Author: siadat

.github/workflows/test.yml

@@ -0,0 +1,21 @@
+name: Run tests
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Run make test
+        run: make test
+

Makefile

@@ -1,6 +1,6 @@
 test:
 	docker build . -f tests/Dockerfile --build-arg PLUGIN_NAME=shellpad.nvim -t shellpad/shellpad.nvim:tests
-	docker run -it shellpad/shellpad.nvim:tests
+	docker run shellpad/shellpad.nvim:tests
 
 test-highlight:
 	@echo 'shellpad: highlight {re: "\\(\\d\\+\\.\\)\\{3\\}\\d\\+", fg: "#66aa66", bg: "NONE"}'

README.md

@@ -1,5 +1,7 @@
 # 📜 shellpad.nvim
 
+[![Test Status](https://github.com/shellpad/shellpad.nvim/actions/workflows/test.yml/badge.svg)](https://github.com/shellpad/shellpad.nvim/actions/workflows/test.yml)
+
 Adds the :Shell command for running shell commands without a pty in a scratch buffer.
 
 ![Shellpad.nvim screenshot](https://raw.githubusercontent.com/siadat/public/master/shellpad.nvim.png)