feat: add tests

.github/workflows/ci.yml

@@ -2,15 +2,17 @@ name: 'Continuous Integration'
 
 on:
   push:
-    tags:
-      - '*.*.*'
+    branches: ['master']
+  pull_request:
+    branches: ['master']
+  workflow_call:
 
 jobs:
   push:
-    name: 'Push image'
+    name: 'Run tests'
     runs-on: 'ubuntu-latest'
     permissions:
-      contents: 'read'
+      contents: 'write'
     steps:
       - name: 'Checkout code'
         uses: 'actions/checkout@v4'
@@ -24,7 +26,13 @@ jobs:
       - name: 'Build'
         uses: 'docker/build-push-action@v5'
         with:
-          pull: false
-          push: true
-          tags: 'jeanberu/mailcatcher:${{ github.ref_name }},jeanberu/mailcatcher:latest'
+          pull: true
+          push: false
+          tags: 'jeanberu/mailcatcher:latest'
           platforms: 'linux/386,linux/amd64,linux/arm/v6,linux/arm/v7,linux/arm64/v8'
+      - name: 'Start mailcatcher'
+        run: 'docker run -d jeanberu/mailcatcher:latest'
+      - name: 'Install test dependencies'
+        run: 'gem install rspec net-smtp net-http'
+      - name: 'Run tests'
+        run: 'rspec spec/*'

.github/workflows/publish.yml

@@ -0,0 +1,33 @@
+name: 'Publish image'
+
+on:
+  push:
+    tags: ['*.*.*']
+
+jobs:
+  tests:
+    name: 'Run tests'
+    uses: './.github/workflows/ci.yml'
+  push:
+    name: 'Push image'
+    needs: ['tests']
+    runs-on: 'ubuntu-latest'
+    permissions:
+      contents: 'read'
+    steps:
+      - name: 'Checkout code'
+        uses: 'actions/checkout@v4'
+      - name: 'Log in to the Container registry'
+        uses: 'docker/login-action@v3'
+        with:
+          username: '${{ secrets.REGISTRY_USERNAME }}'
+          password: '${{ secrets.REGISTRY_PASSWORD }}'
+      - name: 'Set up Docker Buildx'
+        uses: 'docker/setup-buildx-action@v3'
+      - name: 'Build'
+        uses: 'docker/build-push-action@v5'
+        with:
+          pull: false
+          push: true
+          tags: 'jeanberu/mailcatcher:${{ github.ref_name }},jeanberu/mailcatcher:latest'
+          platforms: 'linux/386,linux/amd64,linux/arm/v6,linux/arm/v7,linux/arm64/v8'

spec/fixtures/mail.txt

@@ -0,0 +1,5 @@
+Subject: test message
+Date: Sat, 23 Jun 2001 16:26:43 +0900
+Message-Id: <[email protected]>
+
+This is a test message.

spec/test.rb

@@ -0,0 +1,28 @@
+require 'json'
+require 'net/http'
+require 'net/smtp'
+
+fixtures = File.dirname(__FILE__) + '/fixtures/'
+api = Net::HTTP.new('0.0.0.0', 1080)
+
+RSpec.describe 'Mailcatcher' do
+  before :all do
+    api.delete('/messages')
+  end
+
+  it "can receive an email" do
+    content = File.open(fixtures + 'mail.txt').read
+    Net::SMTP.start('0.0.0.0', 1025) do |smtp|
+      smtp.send_message content, '[email protected]', '[email protected]'
+    end
+
+    response = JSON.parse(api.get('/messages').body)
+
+    expect(response.count).to eq 1
+    expect(response[0]['id']).to eq 1
+    expect(response[0]['sender']).to eq '<[email protected]>'
+    expect(response[0]['recipients']).to eq ['<[email protected]>']
+    expect(response[0]['subject']).to eq 'test message'
+    expect(response[0]['size']).to eq "141"
+  end
+end