test: add CI coverage for a standard user journey

primarily this is to exercise the rake tasks.

Author: flavorjones

.github/workflows/ci.yml

@@ -33,3 +33,19 @@ jobs:
 
       - name: Run tests
         run: bin/test
+
+  user-journey:
+    strategy:
+      fail-fast: false
+      matrix:
+        plat: ["ubuntu", "windows", "macos"]
+    runs-on: ${{matrix.plat}}-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: "3.1"
+          bundler-cache: true
+          bundler: latest
+      - run: test/integration/user_journey_test.sh
+        shell: bash

test/integration/user_journey_test.sh

@@ -0,0 +1,27 @@
+#! /usr/bin/env bash
+# reproduce the documented user journey for installing and running tailwindcss-rails
+# this is run in the CI pipeline, non-zero exit code indicates a failure
+
+set -o pipefail
+set -eux
+
+# fetch the upstream executables
+bundle exec rake download
+
+# create a rails app in a directory with spaces in the name (#176, #184)
+rm -rf "Has A Space"
+mkdir "Has A Space"
+pushd "Has A Space"
+
+gem install rails
+rails new test-app --skip-bundle
+pushd test-app
+
+# install tailwindcss-rails
+echo 'gem "tailwindcss-rails", path: "../.."' >> Gemfile
+bundle install
+
+bin/rails tailwindcss:install
+
+# ensure rake tasks don't exec (#188)
+bin/rails tailwindcss:build about | grep "About your application"