feat: add bsd-mailx package

CHANGELOG.md

@@ -4,6 +4,7 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 Which is based on [Keep A Changelog](http://keepachangelog.com/)
 
 ## [Unreleased]
+- feat: add bsd-mailx package
 
 ## [v1.0.0] - 2019-03-07
 - first version

tasks/main.yml

@@ -1,7 +1,11 @@
 ---
-- name: install package
+- name: install packages
   apt:
-    name: postfix
+    name: '{{ packages }}'
+  vars:
+    packages:
+      - postfix
+      - bsd-mailx
   tags: postfix
 
 - name: copy file configuration

test/integration/default/serverspec/default_spec.rb

@@ -7,8 +7,10 @@ puts '================================'
 puts %x(ansible --version)
 puts '================================'
 
-describe package('postfix') do
-  it { should be_installed }
+%w[postfix bsd-mailx].each do |name|
+  describe package(name) do
+    it { should be_installed }
+  end
 end
 
 describe file('/etc/postfix/main.cf') do