added generic user lookup and foreground processes

lookup_test.go

@@ -0,0 +1,25 @@
+// Copyright (C) 2017 Marius Schellenberger
+
+package godrop
+
+import "testing"
+
+func TestUserID(t *testing.T) {
+	uid, err := userID("root")
+	if err != nil {
+		t.Error(err)
+	}
+	if uid != 0 {
+		t.Error("expected uid '0' got", uid)
+	}
+}
+
+func TestGroupID(t *testing.T) {
+	gid, err := groupID("root")
+	if err != nil {
+		t.Error(err)
+	}
+	if gid != 0 {
+		t.Error("expected gid '0' got", gid)
+	}
+}