func testMode() (environ.TestEnv, func()) {
prevWorld, prevComp := World, compression
tw := environ.NewTest(3)
World, compression = tw, gzip.NoCompression
return tw, func() {
World, compression = prevWorld, prevComp
}
}
func testMode(r environ.TestRun) (environ.TestEnv, func()) {
p1, p2, p3, p4 := World, tarball.World, vcs.World, gotool.World
tw := environ.NewTest(3)
tw.SetRun(r)
World, tarball.World, vcs.World, gotool.World = tw, tw, tw, tw
return tw, func() {
World, tarball.World, vcs.World, gotool.World = p1, p2, p3, p4
}
}