1 files changed, 72 insertions, 0 deletions
diff --git a/spec/lib/sendmail_return_path_spec.rb b/spec/lib/sendmail_return_path_spec.rb
new file mode 100644
index 000000000..d279c5a0b
--- /dev/null
+++ b/spec/lib/sendmail_return_path_spec.rb
@@ -0,0 +1,72 @@
+# This is a test of the monkey patches in sendmail_return_path.rb
+
+require File.dirname(__FILE__) + '/../spec_helper'
+
+describe "when sending email with an altered return path" do
+
+    it "should default to delivery method test" do
+        ActionMailer::Base.delivery_method.should == :test
+    end
+
+    it "should let the helper change the method" do
+        with_delivery_method :smtp do
+            ActionMailer::Base.delivery_method.should == :smtp
+        end
+        ActionMailer::Base.delivery_method.should == :test
+    end
+
+    # Documentation for fancy mock functions: http://rspec.info/documentation/mocks/message_expectations.html
+    it "should set the return path when sending email using SMTP" do
+        mock_smtp = mock("smtp")
+        mock_smtp_session = mock("smtp_session")
+
+        mock_smtp.should_receive(:start).once.and_yield(mock_smtp_session)
+        # the second parameter to the SMTP session is the sender (return path)
+        mock_smtp_session.should_receive(:sendmail).once.with(anything(), ["test@localhost"], anything())
+
+        Net::SMTP.stub!(:new).and_return(mock_smtp)
+
+        with_delivery_method :smtp do
+            ContactMailer.deliver_message(
+                "Mr. Test", "test@localhost", "Test script spec/lib/sendmail_return_path_spec.rb",
+                "This is just a test for a test script", nil, nil, nil
+            )
+        end
+    end
+
+    it "should set the return path when sending email using sendmail" do
+        with_stub_popen do
+            IO.should_receive(:popen).once.with('/usr/sbin/sendmail -i -t -f "test@localhost"', "w+")
+            with_delivery_method :sendmail do
+                ContactMailer.deliver_message(
+                    "Mr. Test", "test@localhost", "Test script spec/lib/sendmail_return_path_spec.rb",
+                    "This is just a test for a test script", nil, nil, nil
+                )
+            end
+        end
+    end
+
+
+ protected
+    # Change the way Rails delivers memory, just for current scope
+    def with_delivery_method(new_delivery_method)
+        old_delivery_method, ActionMailer::Base.delivery_method = ActionMailer::Base.delivery_method, new_delivery_method
+        yield
+    ensure
+        ActionMailer::Base.delivery_method = old_delivery_method
+    end
+
+    # By default, we can't stub popen, presumably because it is a builtin written in C.
+    # Replace it entirely with a dummy function that just returns nil, so we can stub it.
+    def with_stub_popen()
+        old_popen = IO.method(:popen).unbind
+        IO.class_eval "def self.popen(a, b); nil; end"
+        yield
+    ensure
+        old_popen.bind(IO)
+    end
+
+
+end
+
+