@@ -100,3 +100,21 @@ func grepFile(t *testing.T, path string, pattern string) {

 	}

 	t.Fatalf("grepFile: pattern \"%s\" not found in \"%s\"", pattern, path)

 }

+

+func TestEscapeFstabSpaces(t *testing.T) {

+	var testInputs = map[string]string{

+		" ":                      "\\040",

+		"":                       "",

+		"/double  space":         "/double\\040\\040space",

+		"/some long test string": "/some\\040long\\040test\\040string",

+		"/var/lib/docker":        "/var/lib/docker",

+		" leading":               "\\040leading",

+		"trailing ":              "trailing\\040",

+	}

+	for in, exp := range testInputs {

+		if out := escapeFstabSpaces(in); exp != out {

+			t.Logf("Expected %s got %s", exp, out)

+			t.Fail()

+		}

+	}

+}