use ./.env as default

lib/foreman.rb

@@ -5,7 +5,7 @@ module Foreman
   class AppDoesNotExist < Exception; end
 
   # load contents of env_file into ENV
-  def self.load!(env_file)
+  def self.load!(env_file = './.env')
     require 'foreman/engine'
     Foreman::Engine.load_env(env_file)
   end

spec/foreman_spec.rb

@@ -10,16 +10,24 @@ describe Foreman do
 
   describe "::load!(env_file)" do
     before do
-      File.open("/tmp/env1", "w") { |f| f.puts("FOO=bar") }
+      FakeFS.activate!
     end
 
     after do
+      FakeFS.deactivate!
       ENV['FOO'] = nil
     end
 
     it "should load env_file into ENV" do
+      File.open("/tmp/env1", "w") { |f| f.puts("FOO=bar") }
       Foreman.load!("/tmp/env1")
       ENV['FOO'].should == 'bar'
     end 
+
+    it "should assume env_file in ./.env" do
+      File.open("./.env", "w") { |f| f.puts("FOO=bar") }
+      Foreman.load!
+      ENV['FOO'].should == 'bar'
+    end
   end
 end