really fix unit tests.

pkg/plugins/plugins_test.go

@@ -6,12 +6,14 @@ import (
 
 	"github.com/grafana/grafana/pkg/setting"
 	. "github.com/smartystreets/goconvey/convey"
+	"gopkg.in/ini.v1"
 )
 
 func TestPluginScans(t *testing.T) {
 
 	Convey("When scaning for plugins", t, func() {
-		setting.StaticRootPath = filepath.Abs("../../public/")
+		setting.StaticRootPath, _ = filepath.Abs("../../public/")
+		setting.Cfg = ini.Empty()
 		err := Init()
 
 		So(err, ShouldBeNil)