add test step for go.

go/detect/detect.go

@@ -30,8 +30,8 @@ var ProjectTypes = []*Project{
	&Project{"docker/fig", Commands{"build": "fig build", "run": "fig up"}, matchFile("fig.yml")},
	&Project{"docker/default", Commands{"build": "docker build ."}, matchFile("Dockerfile")},
	&Project{"executable", Commands{"run": "{file}"}, executableDefault},
	&Project{"go/default", Commands{"build": "go build {file}", "run": "go build $(basename {file}) && ./$(basename {file} .go)"},
		matchPattern("*.go")},
	&Project{"go/default", Commands{"build": "go build {file}", "run": "go build $(basename {file}) && ./$(basename {file} .go)",
		"test": "go test"}, matchPattern("*.go")},
	&Project{"haskell/cabal", Commands{"build": "cabal build", "run": "cabal run", "test": "cabal test"},
		matchPattern("*.cabal")},
	&Project{"haskell/default", Commands{"run": "runhaskell {file}"}, haskellDefault},