func TestFIXDecimalRead(t *testing.T) {
var tests = []struct {
bytes string
expected decimal.Decimal
expectError bool
}{
{bytes: "15", expected: decimal.New(15, 0)},
{bytes: "15.000", expected: decimal.New(15, 0)},
{bytes: "15.001", expected: decimal.New(15001, -3)},
{bytes: "-15.001", expected: decimal.New(-15001, -3)},
{bytes: "blah", expectError: true},
{bytes: "+200.00", expected: decimal.New(200, 0)},
}
for _, test := range tests {
var field FIXDecimal
err := field.Read([]byte(test.bytes))
require.Equal(t, test.expectError, err != nil)
if !test.expectError {
assert.True(t, test.expected.Equals(field.Decimal), "Expected %s got %s", test.expected, field.Decimal)
}
}
}
func Example_orders() {
virtex := &CaVirtex{
APIKey: "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
APIToken: "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb",
}
status, id, err := virtex.PlaceOrder(
cavirtex.ORDER_SELL,
decimal.New(5, -2),
decimal.New(1, 3),
"BTC", "CAD",
)
if err != nil {
log.Println("Error placing order:", err)
os.Exit(1)
}
fmt.Println("Got order reply, status:", status, "id:", id)
time.Sleep(1 * time.Second)
err = virtex.CancelOrder(id)
if err != nil {
log.Println("Error canceling order:", err)
}
fmt.Println("Canceled order", id)
}
func DecimalToString(res decimal.Decimal, min int32, max int32) string {
if res.Cmp(decimal.New(10, min)) <= 0 || res.Cmp(decimal.New(10, max)) >= 0 {
f, _ := res.Float64()
return strconv.FormatFloat(f, 'G', -1, 64)
}
return res.String()
}
func Parse(s string) (time.Duration, error) {
var d time.Duration
var p parser
if s == "0" {
return d, nil
}
if s[len(s)-1] == 's' {
switch c := s[len(s)-2]; c {
case 'n': //ns
p = parsers[0]
case 'µ': //µs
p = parsers[1]
case 'm': //ms
p = parsers[2]
default:
if '0' <= c && c <= '9' { //s
p = parsers[3]
} else {
return d, ErrMalformed
}
}
} else {
return d, ErrMalformed
}
sub := p.re.FindStringSubmatch(s)
// fmt.Println(len(sub), sub)
switch len(sub) {
case 5:
i, _ := strconv.Atoi(sub[2])
d += time.Duration(i) * time.Hour
i, _ = strconv.Atoi(sub[3])
d += time.Duration(i) * time.Minute
f, err := decimal.NewFromString(sub[4])
if err != nil {
panic(err)
}
f = f.Mul(decimal.New(int64(p.unit), 0))
d += time.Duration(f.IntPart())
case 3:
f, err := decimal.NewFromString(sub[2])
if err != nil {
panic(err)
}
f = f.Mul(decimal.New(int64(p.unit), 0))
d += time.Duration(f.IntPart())
default:
return d, ErrMalformed
}
if sub[1] != "-" {
return d, nil
} else {
return -d, nil
}
}
func main() {
counter := decimal.New(0, 0)
inc := decimal.New(1, -2)
fmt.Println("Increment: ", inc)
for i := 0; i < 1000; i++ {
counter = counter.Add(inc)
}
fmt.Println("Total: ", counter)
counter = counter.Add(decimal.New(1, 16))
fmt.Println("Total: ", counter)
counter = counter.Add(decimal.New(1, -10))
fmt.Println("Total: ", counter)
}
func TestFIXDecimalWrite(t *testing.T) {
var tests = []struct {
decimal FIXDecimal
expected string
}{
{decimal: FIXDecimal{Decimal: decimal.New(-1243456, -4), Scale: 4}, expected: "-124.3456"},
{decimal: FIXDecimal{Decimal: decimal.New(-1243456, -4), Scale: 5}, expected: "-124.34560"},
{decimal: FIXDecimal{Decimal: decimal.New(-1243456, -4), Scale: 0}, expected: "-124"},
}
for _, test := range tests {
b := test.decimal.Write()
assert.Equal(t, test.expected, string(b))
}
}
// Scan populates `row` from `ent`.
func (row *Payment) Scan(ent entity.Payment) (err error) {
row.PagingToken = ent.PagingToken
row.From = string(ent.From)
row.To = string(ent.To)
row.Memo.Scan(ent.Memo)
row.Asset.Scan(ent.Asset)
row.Amount = ent.Amount.Mul(decimal.New(1, 7)).IntPart()
return
}
func (s *Share) GetValue() {
// 15-min delayed full quote for Apple.
q, err := finance.GetQuote(s.Code)
if err != nil {
log.Println(q)
}
qty := decimal.New(s.Qty, 0)
s.Value = q.LastTradePrice.Mul(qty)
}
func powInt(d decimal.Decimal, n int) decimal.Decimal {
tmp := n
res := decimal.New(1, 0)
factor := d
for tmp > 0 {
if (tmp % 2) == 1 {
res = res.Mul(factor)
}
tmp /= 2
factor = factor.Mul(factor)
}
return res
}
func UpdateSale(w http.ResponseWriter, r *http.Request) {
zero, _ := decimal.NewFromString("0")
vars := mux.Vars(r)
UserId := vars["id"]
TransId := vars["PurchaseId"]
//get User Account Information
db, uid, found, _ := getDatabaseUserId(UserId)
if found == false {
writeResponse(w, http.StatusOK, "User Account Does Not Exist")
return
}
Guid := getNewGuid()
//Find last Sell Command
LatestPendingrows, err := db.Query(getLatestPendingSale, uid)
defer LatestPendingrows.Close()
if err != nil {
writeResponse(w, http.StatusOK, "Error Getting Last Sale: "+err.Error())
return
}
var id string
var stock string
var num_shares int
var share_price string
var requested_at time.Time
var expires_at time.Time
found = false
for LatestPendingrows.Next() {
found = true
err = LatestPendingrows.Scan(&id, &uid, &stock, &num_shares, &share_price, &requested_at, &expires_at)
}
if found == false {
writeResponse(w, http.StatusOK, "No Recent Sell Commands")
return
}
strOldPrice := strings.TrimPrefix(share_price, "$")
strOldPrice = strings.Replace(strOldPrice, ",", "", -1)
OldPrice, err := decimal.NewFromString(strOldPrice)
if err != nil {
writeResponse(w, http.StatusBadRequest, err.Error()+strOldPrice)
return
}
//Get and Verify Quote
var strPrice string
strPrice, _ = getStockPrice(TransId, "true", UserId, stock, Guid.String())
var quotePrice decimal.Decimal
quotePrice, err = decimal.NewFromString(strPrice)
if err != nil {
writeResponse(w, http.StatusBadRequest, err.Error())
return
}
if quotePrice.Cmp(zero) != 1 {
writeResponse(w, http.StatusBadRequest, "Quote is not a valid number")
return
}
totalAmount := decimal.New(int64(num_shares), 0).Mul(OldPrice)
newShareNum := totalAmount.Div(quotePrice).IntPart()
diffShares := int(newShareNum) - num_shares
_, err = db.Exec(updateSale, TransId, int(newShareNum), strPrice, int(diffShares), time.Now().Add(time.Duration(60)*time.Second))
if err != nil {
writeResponse(w, http.StatusBadRequest, "Unable to update Sale")
return
}
type return_struct struct {
Error bool
SaleId string
Price string
NumShares int64
Expiration time.Duration
}
//Build Response
rtnStruct := return_struct{false, id, strPrice, newShareNum, -1}
strRtnStruct, err := json.Marshal(rtnStruct)
writeResponse(w, http.StatusOK, string(strRtnStruct))
return
}
package functions
import (
"math"
"github.com/gpahal/calc/operators"
"github.com/shopspring/decimal"
)
var (
one = decimal.New(1, 0)
sin = &operators.Operator{
Name: "sin",
Precedence: 0,
Associativity: operators.L,
Args: 1,
Operation: func(args []decimal.Decimal) decimal.Decimal {
return operators.ConvertToDecimalUnary(math.Sin, args[0])
},
}
cos = &operators.Operator{
Name: "cos",
Precedence: 0,
Associativity: operators.L,
Args: 1,
Operation: func(args []decimal.Decimal) decimal.Decimal {
return operators.ConvertToDecimalUnary(math.Cos, args[0])
},
}
func setupPerson() ([]*Period, []*Person, []*Customer, []*CusRank, []*Employee) {
pr := make([]*Period, 12)
pr[0] = &Period{Year: 2015, Month: 1}
pr[1] = &Period{Year: 2015, Month: 2}
pr[2] = &Period{Year: 2015, Month: 3}
pr[3] = &Period{Year: 2015, Month: 4}
pr[4] = &Period{Year: 2015, Month: 5}
pr[5] = &Period{Year: 2015, Month: 6}
pr[6] = &Period{Year: 2015, Month: 7}
pr[7] = &Period{Year: 2015, Month: 8}
pr[8] = &Period{Year: 2015, Month: 9}
pr[9] = &Period{Year: 2015, Month: 10}
pr[10] = &Period{Year: 2015, Month: 11}
pr[11] = &Period{Year: 2015, Month: 12}
ps := make([]*Person, 5)
loc, _ := time.LoadLocation("Asia/Bangkok")
ps[0] = &Person{FName: "เกษม", LName: "อานนทวิลาศ", NName: "Tom", BDate: time.Date(1974, time.October, 4, 0, 0, 0, 0, loc)}
ps[1] = &Person{FName: "จิราภรณ์", LName: "อานนทวิลาศ", NName: "Jip", BDate: time.Date(1976, time.August, 12, 0, 0, 0, 0, time.Local)}
ps[2] = &Person{FName: "ทนัฐพร", LName: "อานนทวิลาศ", NName: "Tim", BDate: time.Date(1976, time.August, 31, 0, 0, 0, 0, time.Local)}
ps[3] = &Person{FName: "ธนันท์", LName: "อานนทวิลาศ", NName: "Tam", BDate: time.Date(1974, time.June, 7, 0, 0, 0, 0, time.Local)}
ps[4] = &Person{FName: "สาธิต", LName: "โฉมวัฒนา", NName: "น้อย", BDate: time.Date(1974, time.June, 10, 0, 0, 0, 0, time.Local)}
c := make([]*Customer, 5)
c[0] = &Customer{CusType: COMPANY, Contact: ps[0], Name: "Dummy Customer", debit: decimal.Zero, credit: decimal.Zero}
c[1] = &Customer{CusType: COMPANY, Contact: nil, Name: "บจก.เชียงใหม่คอนสตรัคชั่น"}
c[2] = &Customer{CusType: COMPANY, Contact: nil, Name: "บจก.ปาล์ม การ์เด้น เชียงใหม่"}
c[3] = &Customer{CusType: COMPANY, Contact: nil, Name: "บริษัท ส.เต็งไตรรัตน์(น่าน) จำกัด"}
cr := make([]*CusRank, 5)
cr[0] = &CusRank{Period: pr[0], Customer: c[0], Rank: A, KI1Continous: 4, KI2PaymentDue: 4, KI3Responsibility: 4, KI4Charactor: 4}
cr[1] = &CusRank{Period: pr[0], Customer: c[1], Rank: A, KI1Continous: 4, KI2PaymentDue: 4, KI3Responsibility: 4, KI4Charactor: 4}
cr[2] = &CusRank{Period: pr[0], Customer: c[2], Rank: A, KI1Continous: 4, KI2PaymentDue: 4, KI3Responsibility: 4, KI4Charactor: 4}
cr[3] = &CusRank{Period: pr[0], Customer: c[3], Rank: A, KI1Continous: 4, KI2PaymentDue: 4, KI3Responsibility: 4, KI4Charactor: 4}
cr[4] = &CusRank{Period: pr[0], Customer: c[4], Rank: A, KI1Continous: 4, KI2PaymentDue: 4, KI3Responsibility: 4, KI4Charactor: 4}
tt := make([]*Title, 7)
tt[0] = &Title{TH: "ประธานกรรมการ", EN: "Board of Director"}
tt[1] = &Title{Parent: tt[0], TH: "รองประธานกรรมการ", EN: "Director"}
tt[2] = &Title{Parent: tt[1], TH: "กรรมการผู้จัดการ", EN: "Managing Director"}
tt[3] = &Title{Parent: tt[2], TH: "ผู้อำนวยการขาย", EN: "Sales Director"}
tt[4] = &Title{Parent: tt[2], TH: "ผู้อำนวยการบริหารสินค้า", EN: "Merchandise Director"}
tt[5] = &Title{Parent: tt[3], TH: "พนักงานขาย", EN: "Sales"}
fmt.Println("Title")
emp := make([]*Employee, 5)
emp[0] = &Employee{Person: ps[0], Title: tt[2], Code: "39001", salary: decimal.New(40000, 0)}
emp[1] = &Employee{Person: ps[1], Title: tt[3], Code: "48001", salary: decimal.New(30000, 0)}
emp[2] = &Employee{Person: ps[2], Title: tt[4], Code: "49001", salary: decimal.New(20000, 0)}
emp[3] = &Employee{Person: ps[3], Title: tt[4], Code: "50001", salary: decimal.New(20000, 0)}
emp[4] = &Employee{Person: ps[4], Title: tt[5], Code: "53001", salary: decimal.New(9000, 0)}
fmt.Println("Employee")
o := make([]*Org, 20)
o[0] = &Org{TH: "สำนักกรรมการผู้จัดการ", EN: "Managing Director Office", Short: "MD"}
o[1] = &Org{Parent: o[0], TH: "ขาย", EN: "Sales", Short: "SA"}
o[2] = &Org{Parent: o[1], TH: "หน้าร้านสาขา 1", EN: "Retail Store 1", Short: "S1"}
o[3] = &Org{Parent: o[1], TH: "หน้าร้านสาขา 2", EN: "Retail Store 2", Short: "S2"}
o[4] = &Org{Parent: o[1], TH: "โครงการ 1", EN: "Project1", Short: "PJ1"}
o[5] = &Org{Parent: o[1], TH: "โครงการ 2", EN: "Project2", Short: "PJ2"}
o[6] = &Org{Parent: o[1], TH: "ค้าส่ง", EN: "Wholesales", Short: "WS"}
o[7] = &Org{Parent: o[0], TH: "บริหารสินค้า", EN: "Merchandising", Short: "MC"}
o[8] = &Org{Parent: o[7], TH: "แผนกสินค้า1", EN: "Category1", Short: "CAT1"}
o[9] = &Org{Parent: o[7], TH: "แผนกสินค้า2", EN: "Category2", Short: "CAT2"}
o[10] = &Org{Parent: o[7], TH: "แผนกสินค้า1", EN: "Category1", Short: "CAT3"}
o[11] = &Org{Parent: o[7], TH: "แผนกสินค้า4", EN: "Category4", Short: "CAT4"}
o[12] = &Org{Parent: o[7], TH: "การตลาด", EN: "Marketing", Short: "CAT4"}
o[13] = &Org{Parent: o[7], TH: "พัฒนาระบบคุณภาพ", EN: "Quality Management Development", Short: "QMD"}
o[14] = &Org{Parent: o[7], TH: "พัฒนาระบบสาขา", EN: "Business Development", Short: "QMD"}
o[15] = &Org{Parent: o[7], TH: "พัฒนาระบบบริการลูกค้า", EN: "Customer Service Development", Short: "CSD"}
o[16] = &Org{Parent: o[7], TH: "Information Technology", EN: "Information Technology", Short: "IT"}
return pr, ps, c, cr, emp
}
"-3^2": StringToDecimal("-9"),
"2(1+1)4": StringToDecimal("16"),
"3*abs(1-5)": StringToDecimal("12"),
"ln(3^15)": StringToDecimal("16.47918433"),
"sqrt(10)": StringToDecimal("3.16227766"),
"abs(-3/2)": StringToDecimal("1.5"),
"1+2sin(-1024)tan(acos(1))^2": StringToDecimal("1"),
"tan(10)cos(20)": StringToDecimal("0.2645844"),
"2(e^3)": StringToDecimal("40.1710738464"),
"sin(pi*π)": StringToDecimal("-0.430301217"),
"3π": StringToDecimal("9.42477796"),
"0.1+0.2": StringToDecimal("0.3"),
"(0.1+0.4)^5": StringToDecimal("0.03125"),
}
var DELTA = decimal.New(1, -6)
func StringToDecimal(str string) decimal.Decimal {
d, err := decimal.NewFromString(str)
if err != nil {
panic(err)
}
return d
}
func TestEvaluate(t *testing.T) {
for expression, expected := range exps {
res, err := Evaluate(expression)
if err != nil {
t.Error(err)
} else if res.Sub(expected).Abs().Cmp(DELTA) > 0 {