Add tests for github.com/shopspring/decimal support (#1977)

Reviewed-on: https://gitea.com/xorm/xorm/pulls/1977
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-committed-by: Lunny Xiao <xiaolunwen@gmail.com>

go.mod

@@ -8,6 +8,7 @@ require (
 	github.com/json-iterator/go v1.1.11
 	github.com/lib/pq v1.7.0
 	github.com/mattn/go-sqlite3 v1.14.6
+	github.com/shopspring/decimal v1.2.0
 	github.com/stretchr/testify v1.4.0
 	github.com/syndtr/goleveldb v1.0.0
 	github.com/ziutek/mymysql v1.5.4

go.sum

@@ -45,6 +45,8 @@ github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZb
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/remyoudompheng/bigfft v0.0.0-20200410134404-eec4a21b6bb0 h1:OdAsTTz6OkFY5QxjkYwrChwuRruF69c169dPK26NUlk=
 github.com/remyoudompheng/bigfft v0.0.0-20200410134404-eec4a21b6bb0/go.mod h1:qqbHyh8v60DhA7CoWK5oRCqLrMHRGoxYCSS9EjAz6Eo=
+github.com/shopspring/decimal v1.2.0 h1:abSATXmQEYyShuxI4/vyW3tV1MrKAJzCZ/0zLUXYbsQ=
+github.com/shopspring/decimal v1.2.0/go.mod h1:DKyhrW/HYNuLGql+MJL6WCR6knT2jwCFRcu2hWCYk4o=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJyk=

integrations/session_get_test.go

@@ -17,6 +17,7 @@ import (
 	"xorm.io/xorm/contexts"
 	"xorm.io/xorm/schemas"
 
+	"github.com/shopspring/decimal"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -829,3 +830,54 @@ func TestGetBigFloat(t *testing.T) {
 		assert.True(t, gfs[0].Money.String() == gf2.Money.String(), "%v != %v", gfs[0].Money.String(), gf2.Money.String())
 	}
 }
+
+func TestGetDecimal(t *testing.T) {
+	type GetDecimal struct {
+		Id    int64
+		Money decimal.Decimal `xorm:"decimal(22,2)"`
+	}
+
+	assert.NoError(t, PrepareEngine())
+	assertSync(t, new(GetDecimal))
+
+	{
+		var gf = GetDecimal{
+			Money: decimal.NewFromFloat(999999.99),
+		}
+		_, err := testEngine.Insert(&gf)
+		assert.NoError(t, err)
+
+		var m decimal.Decimal
+		has, err := testEngine.Table("get_decimal").Cols("money").Where("id=?", gf.Id).Get(&m)
+		assert.NoError(t, err)
+		assert.True(t, has)
+		assert.True(t, m.String() == gf.Money.String(), "%v != %v", m.String(), gf.Money.String())
+		//fmt.Println(m.Cmp(gf.Money))
+		//assert.True(t, m.Cmp(gf.Money) == 0, "%v != %v", m.String(), gf.Money.String())
+	}
+
+	type GetDecimal2 struct {
+		Id    int64
+		Money *decimal.Decimal `xorm:"decimal(22,2)"`
+	}
+
+	assert.NoError(t, PrepareEngine())
+	assertSync(t, new(GetDecimal2))
+
+	{
+		v := decimal.NewFromFloat(999999.99)
+		var gf = GetDecimal2{
+			Money: &v,
+		}
+		_, err := testEngine.Insert(&gf)
+		assert.NoError(t, err)
+
+		var m decimal.Decimal
+		has, err := testEngine.Table("get_decimal2").Cols("money").Where("id=?", gf.Id).Get(&m)
+		assert.NoError(t, err)
+		assert.True(t, has)
+		assert.True(t, m.String() == gf.Money.String(), "%v != %v", m.String(), gf.Money.String())
+		//fmt.Println(m.Cmp(gf.Money))
+		//assert.True(t, m.Cmp(gf.Money) == 0, "%v != %v", m.String(), gf.Money.String())
+	}
+}