Add and force unit tests in packer build process (with simple examples)

packer/base/tests/Gemfile

@@ -0,0 +1,4 @@
+source "https://rubygems.org"
+
+gem "rake"
+gem "serverspec", ">= 2.37.2"

packer/base/tests/Gemfile.lock

@@ -0,0 +1,47 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    diff-lcs (1.2.5)
+    multi_json (1.12.1)
+    net-scp (1.2.1)
+      net-ssh (>= 2.6.5)
+    net-ssh (3.2.0)
+    net-telnet (0.1.1)
+    rake (10.1.1)
+    rspec (3.5.0)
+      rspec-core (~> 3.5.0)
+      rspec-expectations (~> 3.5.0)
+      rspec-mocks (~> 3.5.0)
+    rspec-core (3.5.4)
+      rspec-support (~> 3.5.0)
+    rspec-expectations (3.5.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.5.0)
+    rspec-its (1.2.0)
+      rspec-core (>= 3.0.0)
+      rspec-expectations (>= 3.0.0)
+    rspec-mocks (3.5.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.5.0)
+    rspec-support (3.5.0)
+    serverspec (2.37.2)
+      multi_json
+      rspec (~> 3.0)
+      rspec-its
+      specinfra (~> 2.53)
+    sfl (2.3)
+    specinfra (2.66.0)
+      net-scp
+      net-ssh (>= 2.7, < 4.0)
+      net-telnet
+      sfl
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  rake
+  serverspec (>= 2.37.2)
+
+BUNDLED WITH
+   1.13.3

packer/base/tests/Rakefile

@@ -0,0 +1,6 @@
+require 'rake'
+require 'rspec/core/rake_task'
+
+RSpec::Core::RakeTask.new(:spec) do |t|
+  t.pattern = 'spec/*_spec.rb'
+end

packer/base/tests/spec/ntp_spec.rb

@@ -0,0 +1,10 @@
+require 'spec_helper'
+
+describe package('ntp') do
+  it { should be_installed }
+end
+
+describe service('ntp') do
+  it { should be_enabled   }
+  it { should be_running   }
+end

packer/base/tests/spec/spec_helper.rb

@@ -0,0 +1,3 @@
+require 'serverspec'
+
+set :backend, :exec

packer/ecs/tests/Gemfile

@@ -0,0 +1,4 @@
+source "https://rubygems.org"
+
+gem "rake"
+gem "serverspec", ">= 2.37.2"

packer/ecs/tests/Gemfile.lock

@@ -0,0 +1,47 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    diff-lcs (1.2.5)
+    multi_json (1.12.1)
+    net-scp (1.2.1)
+      net-ssh (>= 2.6.5)
+    net-ssh (3.2.0)
+    net-telnet (0.1.1)
+    rake (10.1.1)
+    rspec (3.5.0)
+      rspec-core (~> 3.5.0)
+      rspec-expectations (~> 3.5.0)
+      rspec-mocks (~> 3.5.0)
+    rspec-core (3.5.4)
+      rspec-support (~> 3.5.0)
+    rspec-expectations (3.5.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.5.0)
+    rspec-its (1.2.0)
+      rspec-core (>= 3.0.0)
+      rspec-expectations (>= 3.0.0)
+    rspec-mocks (3.5.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.5.0)
+    rspec-support (3.5.0)
+    serverspec (2.37.2)
+      multi_json
+      rspec (~> 3.0)
+      rspec-its
+      specinfra (~> 2.53)
+    sfl (2.3)
+    specinfra (2.66.0)
+      net-scp
+      net-ssh (>= 2.7, < 4.0)
+      net-telnet
+      sfl
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  rake
+  serverspec (>= 2.37.2)
+
+BUNDLED WITH
+   1.13.3

packer/ecs/tests/Rakefile

@@ -0,0 +1,6 @@
+require 'rake'
+require 'rspec/core/rake_task'
+
+RSpec::Core::RakeTask.new(:spec) do |t|
+  t.pattern = 'spec/*_spec.rb'
+end

packer/ecs/tests/spec/ecs_spec.rb

@@ -0,0 +1,5 @@
+require 'spec_helper'
+
+describe service('ecs-agent') do
+  it { should be_enabled }
+end

packer/ecs/tests/spec/spec_helper.rb

@@ -0,0 +1,3 @@
+require 'serverspec'
+
+set :backend, :exec

tools/pack-ami

@@ -252,6 +252,11 @@ class Template(object):
             content = BEGIN_SCRIPT,
         )
 
+        self.test = Script(
+            name = 'pack-test.sh',
+            content = TEST_SCRIPT,
+        )
+
         self.end = Script(
             name    = 'pack-end.sh',
             content = END_SCRIPT,
@@ -314,16 +319,23 @@ class Template(object):
         p1 = { 'type': 'shell', 'scripts': self.scripts() }
         ex = self.execute_command()
 
+        p2 = {
+            'type'        : 'file',
+            'source'      : 'tests',
+            'destination' : '/tmp',
+        }
+
         if ex is not None:
             p1['execute_command'] = ex
 
-        return [p0, p1]
+        return [p0, p1, p2]
 
     def scripts(self):
         scripts = [ ]
         scripts.append(self.begin.name)
         for s in self._scripts:
             scripts.append('scripts/' + s)
+        scripts.append(self.test.name)
         scripts.append(self.end.name)
         return scripts
 
@@ -369,10 +381,10 @@ class Template(object):
              open(os.path.join(pwd, 'stdout.log'), 'wb') as stdout, \
              open(os.path.join(pwd, 'stderr.log'), 'wb') as stderr:
 
-            for d in ('root', 'scripts'):
+            for d in ('root', 'scripts', 'tests'):
                 shutil.copytree(os.path.join(templates_dir, self.name, d), os.path.join(pwd, d))
 
-            for s in (self.begin, self.end):
+            for s in (self.begin, self.test, self.end):
                 with open(os.path.join(pwd, s.name), 'w') as f:
                     f.write(s.content)
 
@@ -443,6 +455,14 @@ fi
 systemctl daemon-reload
 """
 
+TEST_SCRIPT = """#!/bin/bash
+
+sudo gem install bundler --no-ri --no-rdoc
+cd /tmp/tests
+bundle install --path=vendor
+bundle exec rake spec
+"""
+
 END_SCRIPT = """#!/bin/bash
 set -e