What version of Go are you using (go version)?

Go 1.10.3

Does this issue reproduce with the latest release?

No

What did you do?

Tried to load imports of a test package

a_test.go:

package a

import ( 
   "testing"
   "github.com/other/package"
)

Try to load packages with tests:

cfg := &packages.Config {
   Mode: packages.LoadImports,
   Tests: true,
}

pkgs, err := packages.Load(cfg, "a") 

What did you expect to see?

I expected imports of the package that included "a_test.go" to include "testing" and "github.com/other/pkg".

What did you see instead?

The test package does not have "testing" or "github.com/other/pkg" in Imports.

The fallback implementation does not load the dependencies of tests or xtests.