add support for process environments

spec/foreman/engine_spec.rb

@@ -37,17 +37,17 @@ describe "Foreman::Engine" do
   describe "start" do
     it "forks the processes" do
       write_procfile
-      mock(subject).fork(subject.processes["alpha"], {})
-      mock(subject).fork(subject.processes["bravo"], {})
+      mock(subject).fork(subject.processes["alpha"], {}, {})
+      mock(subject).fork(subject.processes["bravo"], {}, {})
       mock(subject).watch_for_termination
       subject.start
     end
 
     it "handles concurrency" do
       write_procfile
-      mock(subject).fork_individual(subject.processes["alpha"], 1, 5000)
-      mock(subject).fork_individual(subject.processes["alpha"], 2, 5001)
-      mock(subject).fork_individual(subject.processes["bravo"], 1, 5100)
+      mock(subject).fork_individual(subject.processes["alpha"], 1, 5000, {})
+      mock(subject).fork_individual(subject.processes["alpha"], 2, 5001, {})
+      mock(subject).fork_individual(subject.processes["bravo"], 1, 5100, {})
       mock(subject).watch_for_termination
       subject.start(:concurrency => "alpha=2")
     end
@@ -56,9 +56,34 @@ describe "Foreman::Engine" do
   describe "execute" do
     it "runs the processes" do
       write_procfile
-      mock(subject).fork(subject.processes["alpha"], {})
+      mock(subject).fork(subject.processes["alpha"], {}, {})
       mock(subject).watch_for_termination
       subject.execute("alpha")
     end
   end
+
+  describe "environment" do
+    before(:each) do
+      write_procfile
+      stub(Process).fork
+      stub(subject).info
+      mock(subject).watch_for_termination
+    end
+
+    it "should read if specified" do
+      File.open("/tmp/env", "w") { |f| f.puts("FOO=baz") }
+      subject.execute("alpha", :env => "/tmp/env")
+    end
+
+    it "should fail if specified and doesnt exist" do
+      mock(subject).error("No such file: /tmp/env")
+      subject.execute("alpha", :env => "/tmp/env")
+    end
+
+    it "should read .env if none specified" do
+      File.open(".env", "w") { |f| f.puts("FOO=qoo") }
+      mock(subject).fork_individual(anything, anything, anything, { "FOO" => "qoo" })
+      subject.execute("bravo")
+    end
+  end
 end