Move util to test, contextual errors to util (#575)

test/logger.go

@@ -0,0 +1,29 @@
+package test
+
+import (
+	"io/ioutil"
+	"os"
+
+	"github.com/sirupsen/logrus"
+)
+
+func NewLogger() *logrus.Logger {
+	l := logrus.New()
+
+	v := os.Getenv("TEST_LOGS")
+	if v == "" {
+		l.SetOutput(ioutil.Discard)
+		return l
+	}
+
+	switch v {
+	case "2":
+		l.SetLevel(logrus.DebugLevel)
+	case "3":
+		l.SetLevel(logrus.TraceLevel)
+	default:
+		l.SetLevel(logrus.InfoLevel)
+	}
+
+	return l
+}