add test for label validation

machines_test.go

@@ -22,6 +22,40 @@ func TestIsValidRole(t *testing.T) {
 	}
 }
 
+func TestIsValidLabelName(t *testing.T) {
+	t.Parallel()
+
+	validNames := []string{"valid_name1", "valid-name2", "valid/name3"}
+	for _, vn := range validNames {
+		if !IsValidLabelName(vn) {
+			t.Error("validator should return true:", vn)
+		}
+	}
+	invalidNames := []string{"^in;valid name\\1", "in$valid#name&2", "invalid@name=3"}
+	for _, ivn := range invalidNames {
+		if IsValidLabelName(ivn) {
+			t.Error("validator should return false:", ivn)
+		}
+	}
+}
+
+func TestIsValidLabelValue(t *testing.T) {
+	t.Parallel()
+
+	validVals := []string{"^valid value@1", "valid$value-=2", "%valid':value;3"}
+	for _, vv := range validVals {
+		if !IsValidLabelValue(vv) {
+			t.Error("validator should return true:", vv)
+		}
+	}
+	invalidVals := []string{`inválidvaluõ1`, `iñvalidvålue`}
+	for _, ivv := range invalidVals {
+		if IsValidLabelValue(ivv) {
+			t.Error("validator should return false:", ivv)
+		}
+	}
+}
+
 func TestMachine(t *testing.T) {
 	t.Parallel()