Proper GOPATH to include App Engine libraries from App Engine SDK?

Question

I'm trying to write an app for App Engine using the Go SDK, but it seems to have a funny relationship to unit testing. People have written libraries around this original, outdated set of tools, but every time I try to install them, depending on the Go command I use I run into one of two problems:

• From the standard go: Can't locate 'appengine' or 'appengine_internal'
• From the SDK's go: not allowed to build packages. I doubt I'm supposed to be using this.

My guess is that I have to manipulate my $GOPATH to include a directory somewhere in the SDK so that the appengine packages are visible, but I've tried many variations (such as $SDK/goroot, $SDK/goroot/src, etc.) and none of them seem to work.

-Generally-, what testing strategies might one suggest for App Engine for Go?

-Specifically-, how can I go about making those packages visible so that I may use the general Go tool to install libraries that depend on them (such as these testing packages) or otherwise run my own test suites?

Answer 1

This answer provides detailed installation instructions for the updated gae-go-testing. I did a quick run through and they do seem to work. Note that installation involves copying across appengine, appengine_internal and goprotobuf from the SDK to your local go install.