From 3259e0a2de653dd6c46d470db8f2d2caff23cf81 Mon Sep 17 00:00:00 2001
From: Ruben de Vries <ruben@rubensayshi.com>
Date: Tue, 12 Oct 2021 11:07:45 +0200
Subject: [PATCH] Add NewNullDecimal init method (#234)

---
 decimal.go      |  7 +++++++
 decimal_test.go | 12 ++++++++++++
 2 files changed, 19 insertions(+)

diff --git a/decimal.go b/decimal.go
index 9a80dc53..0287e3fc 100644
--- a/decimal.go
+++ b/decimal.go
@@ -1603,6 +1603,13 @@ type NullDecimal struct {
 	Valid   bool
 }
 
+func NewNullDecimal(d Decimal) NullDecimal {
+	return NullDecimal{
+		Decimal: d,
+		Valid:   true,
+	}
+}
+
 // Scan implements the sql.Scanner interface for database deserialization.
 func (d *NullDecimal) Scan(value interface{}) error {
 	if value == nil {
diff --git a/decimal_test.go b/decimal_test.go
index 686b8bbc..53d59a43 100644
--- a/decimal_test.go
+++ b/decimal_test.go
@@ -3269,6 +3269,18 @@ func TestTan(t *testing.T) {
 	}
 }
 
+func TestNewNullDecimal(t *testing.T) {
+	d := NewFromInt(1)
+	nd := NewNullDecimal(d)
+
+	if !nd.Valid {
+		t.Errorf("expected NullDecimal to be valid")
+	}
+	if nd.Decimal != d {
+		t.Errorf("expected NullDecimal to hold the provided Decimal")
+	}
+}
+
 func ExampleNewFromFloat32() {
 	fmt.Println(NewFromFloat32(123.123123123123).String())
 	fmt.Println(NewFromFloat32(.123123123123123).String())