Tests work better when a Rakefile is present...

.puppet-lint.rc

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+--no-class_inherits_from_params_class-check

.rspec

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+--format documentation
+--color
+--tty

Rakefile

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+require 'rubygems'
+require 'puppetlabs_spec_helper/rake_tasks'
+require 'puppet-lint/tasks/puppet-lint'
+
+begin
+  require 'puppet_blacksmith/rake_tasks'
+rescue LoadError
+end
+
+exclude_paths = [
+  "pkg/**/*",
+  "vendor/**/*",
+  "spec/**/*",
+]
+
+PuppetLint.configuration.fail_on_warnings = true
+PuppetLint.configuration.ignore_paths = exclude_paths
+PuppetLint.configuration.log_format = "%{path}:%{linenumber}:%{check}:%{KIND}:%{message}"
+
+PuppetSyntax.exclude_paths = exclude_paths
+
+desc "Validate manifests, templates, and ruby files"
+task :validate do
+  Dir['manifests/**/*.pp'].each do |manifest|
+    sh "puppet parser validate --noop #{manifest}"
+  end
+  Dir['spec/**/*.rb','lib/**/*.rb'].each do |ruby_file|
+    sh "ruby -c #{ruby_file}" unless ruby_file =~ /spec\/fixtures/
+  end
+  Dir['templates/**/*.erb'].each do |template|
+    sh "erb -P -x -T '-' #{template} | ruby -c"
+  end
+end
+
+task :tests do
+  Rake::Task[:lint].invoke
+  Rake::Task[:validate].invoke
+  Rake::Task[:spec].invoke
+end