"sync"
	"testing"
)

func setMimeInit(fn func()) (cleanup func()) {
	once = sync.Once{}
	testInitMime = fn
	return func() {
		testInitMime = nil
		once = sync.Once{}
	}
}

func clearMimeTypes() {
	setMimeTypes(map[string]string{}, map[string]string{})
}

func setType(ext, typ string) {
	if !strings.HasPrefix(ext, ".") {
		panic("missing leading dot")
	}