Add Profile load/write/append API

spec/foreman/procfile_entry_spec.rb

@@ -0,0 +1,13 @@
+require 'spec_helper'
+require 'foreman/procfile_entry'
+require 'pathname'
+require 'tmpdir'
+
+describe Foreman::ProcfileEntry do
+  subject { described_class.new('alpha', './alpha') }
+
+  it "stringifies as a Procfile line" do
+    subject.to_s.should == 'alpha: ./alpha'
+  end
+
+end

spec/foreman/procfile_spec.rb

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+require 'spec_helper'
+require 'foreman/procfile'
+require 'pathname'
+require 'tmpdir'
+
+describe Foreman::Procfile do
+  subject { described_class.new }
+
+  let(:testdir) { Pathname(Dir.tmpdir) }
+  let(:procfile) { testdir + 'Procfile' }
+
+  it "can have a process appended to it" do
+    subject << ['alpha', './alpha']
+    subject['alpha'].should be_a(Foreman::ProcfileEntry)
+  end
+
+  it "can write itself out to a file" do
+    subject << ['alpha', './alpha']
+    subject.write(procfile)
+    procfile.read.should == "alpha: ./alpha\n"
+  end
+
+  it "can re-read entries from a file" do
+    procfile.open('w') { |io| io.puts "gamma: ./radiation", "theta: ./rate" }
+    subject << ['alpha', './alpha']
+    subject.load(procfile)
+    subject.process_names.should have(2).members
+    subject.process_names.should include('gamma', 'theta')
+  end
+
+end