Test overriding ports works properly

test/acceptance/port_forward_test.rb

@@ -20,25 +20,7 @@ describe "vagrant port forwarding" do
     env.execute("vagrant", "box", "add", "base", box_path("default")).should succeed
   end
 
-  it "forwards ports properly" do
-    initialize_environment
-
-    guest_port = 3000
-    host_port  = 5000
-
-    environment.workdir.join("Vagrantfile").open("w+") do |f|
-      f.puts(<<VFILE)
-Vagrant::Config.run do |config|
-  config.vm.box = "base"
-  config.vm.forward_port #{guest_port}, #{host_port}
-end
-VFILE
-    end
-
-    assert_execute("vagrant", "up")
-
-    thr = nil
-    begin
+  def assert_port_forwarded_properly(guest_port, host_port)
     # Start up a web server in another thread by SSHing into the VM.
     thr = Thread.new do
       assert_execute("vagrant", "ssh", "-c", "python -m SimpleHTTPServer #{guest_port}")
@@ -55,6 +37,44 @@ VFILE
     # The server needs to die. This is how.
     thr.kill if thr
   end
+
+  it "forwards ports properly" do
+    initialize_environment
+
+    guest_port = 3000
+    host_port  = 5000
+
+    environment.workdir.join("Vagrantfile").open("w+") do |f|
+      f.puts(<<VFILE)
+Vagrant::Config.run do |config|
+  config.vm.box = "base"
+  config.vm.forward_port #{guest_port}, #{host_port}
+end
+VFILE
+    end
+
+    assert_execute("vagrant", "up")
+    assert_port_forwarded_properly(guest_port, host_port)
+  end
+
+  it "properly overrides port forwarding from the same port" do
+    initialize_environment
+
+    guest_port = 3000
+    host_port  = 5000
+
+    environment.workdir.join("Vagrantfile").open("w+") do |f|
+      f.puts(<<VFILE)
+Vagrant::Config.run do |config|
+  config.vm.box = "base"
+  config.vm.forward_port #{guest_port}, #{host_port - 1}
+  config.vm.forward_port #{guest_port}, #{host_port}
+end
+VFILE
+    end
+
+    assert_execute("vagrant", "up")
+    assert_port_forwarded_properly(guest_port, host_port)
   end
 
   it "detects and corrects port collisions" do