func TestMoneyFormatUSD(t *testing.T) {
symbolUSD := "$"
codeUSD := "USD"
valStrExpect := "1234.56"
valStr2Expect := "1234,56"
val := int64(123456)
val2 := float64(1234.56)
mon := money.Money{M: 123456}
mf, _ := mon.Format("USD")
if mf.Symbol != symbolUSD {
t.Error("wanted '$' but got", mf.Symbol)
}
if mf.IsoCode != codeUSD {
t.Error("wanted 'USD' but got", mf.IsoCode)
}
if mf.MoneyVal.StringD() != valStrExpect {
t.Error("wanted '1234.56' but got", mf.MoneyVal.StringD())
}
if mf.MoneyVal.StringC() != valStr2Expect {
t.Error("wanted '1234,56' but got", mf.MoneyVal.StringC())
}
if mf.MoneyVal.Valuei() != val {
t.Error("wanted int64 '123456' but got", mf.MoneyVal.Valuei())
}
if mf.MoneyVal.Valuef() != val2 {
t.Error("wanted float64 '123456' but got", mf.MoneyVal.Valuef())
}
}
func TestMoneyUpdateIsMoneyType(t *testing.T) {
m := money.Money{}
var val1 int64 = 7868
res := m.Updatei(val1)
if res.Valuei() != val1 {
t.Error("should be '7868'", res.Valuei())
}
typ := fmt.Sprintf("%T", m)
typPointer := fmt.Sprintf("%T", res)
printValue := fmt.Sprintf("%v", m.M)
if typ != "money.Money" {
t.Error("should be money type, instead it is: ", typ)
}
if typPointer != "*money.Money" {
t.Error("should be money type, instead it is: ", typPointer)
}
if printValue != "7868" {
t.Error("default print value for money Updatei() int64 '7868' should be '7868', but got", printValue)
}
printValued := fmt.Sprintf("%d", m)
//if printValued != "{7868 0}" {
if printValued != "{7868}" {
//t.Error("base 10 print format of money struct should be base value '{7868 0}'", printValued)
t.Error("base 10 print format of money struct should be base value '{7868}'", printValued)
}
}
func TestMoneyVarsNotChanging(t *testing.T) {
var val1 int64 = 67
var val2 int64 = 6700
m1 := money.Money{M: val1}
m2 := money.Money{M: val2}
if m1.Valuei() != val1 {
t.Error("expected '67' got: ", m1.Valuei())
}
if m2.Valuei() != val2 {
t.Error("expected '6700' got: ", m2.Valuei())
}
}
func TestMoneyFormatBRL(t *testing.T) {
symbolBRL := "R$"
codeBRL := "BRL"
//valStrExpect := "R$1.234,56 BRL"
mon := money.Money{M: 123456}
mf, _ := mon.Format("BRL") // "pt-BR" also works
if mf.Symbol != symbolBRL {
t.Error("wanted 'R$' but got", mf.Symbol)
}
if mf.IsoCode != codeBRL {
t.Error("wanted 'BRL' but got", mf.IsoCode)
}
}
func TestMoneyUpdateChangesOriginalValue(t *testing.T) {
m := money.Money{M: 67}
m.Updatei(int64(6700))
if m.Valuei() != int64(6700) {
t.Error("original vlaue should be updated to '67.00' but got: ", m.Valuei())
}
}
// division with a large denominator
func TestMoneyDivLargeDenom(t *testing.T) {
m1 := money.Money{M: 67} //67 cents!!
m2 := money.Money{M: 6700} // 67 dollars
res := m1.Div(&m2)
finResi := int64(1)
finResf := float64(0.01)
if res.Valuei() != finResi {
t.Error("expected '1' got: ", res.Valuei())
}
if res.Valuef() != finResf {
t.Error("expected '0.01' got: ", res.Valuef())
}
if res.StringD() != "0.01" {
t.Error("expected '100' got: ", res.StringD())
}
}
// adding large numbers floats via an `Updatef`
func TestMoneyAddLarge(t *testing.T) {
var val1 float64 = 12390678659.32 //12390678659.32
var val2 float64 = 8937670084.36 // 8937670084.36
m1 := money.Money{}
m2 := money.Money{}
m1Set := m1.Updatef(val1)
m2Set := m2.Updatef(val2)
res := m1Set.Add(m2Set)
//12390678659.32 + 8937670084.36 = 21,328,348,743.68
if res.Valuef() != float64(21328348743.68) {
t.Error("expected negaitve '21328348743.68' got: ", res.Valuef())
}
if res.Valuei() != int64(2132834874368) {
t.Error("expected negaitve '2132834874368' got: ", res.Valuei())
}
if res.StringD() != "21328348743.68" {
t.Error("expected '21328348743.68' got: ", res.StringD())
}
//12390678659.32 + 8937670084.36 = 21,328,348,743.68
if res.StringC() != "21328348743,68" {
t.Error("expected '21328348743,68' got: ", res.StringC())
}
}
func TestMoneyOverflow(t *testing.T) {
flag.Parse()
if ovf == 0 {
t.Skip("Skip overflow no 'overflow' cli flag set: 'ovf=1 will run it'")
}
r := random(1, 25)
m1 := money.Money{M: money.MaxInt}
m2 := money.Money{M: money.MinInt}
if (r % 2) == 1 {
_ = m1.Add(&m1)
} else {
_ = m2.Sub(&m1)
}
/*
** this was testing using fields on the struct to check for overlfow errors
// overflow error should return value of struct attempting op
if res.Valuei() != int64(0) {
t.Error("expected overflow value to be zero", res.Valuei())
}
if res.OvfErr != true {
t.Error("expected ok to be false", res.OvfErr)
}
if len(res.Ovf) < 1 {
t.Error("need overflow message", res.Ovf)
}
*/
}
func TestMoneySmallNumberSubtractLarger(t *testing.T) {
var val1 int64 = 67 //0.67
var val2 int64 = 6700 //67.00
m1 := money.Money{}
m2 := money.Money{}
m1Set := m1.Updatei(val1)
m2Set := m2.Updatei(val2)
res := m1Set.Sub(m2Set)
if res.Valuei() != int64(-6633) {
t.Error("expected negative '-6633' got: ", res.Valuei())
}
if res.Valuef() != float64(-66.33) {
t.Error("expected negative '-66.33' got: ", res.Valuef())
}
}
func TestMoneyStringWithUpdate(t *testing.T) {
m := money.Money{M: 67}
if m.StringD() != "0.67" {
t.Error("wanted to see '0.67' cents but got: ", m.StringD())
}
var val2 int64 = 6700
m.Updatei(val2)
if m.StringD() != "67.00" {
t.Error("wanted to see '67.00' dollars but got: ", m.StringD())
}
}
// check multiplication is good but also that original values are not modified
func TestMoneyMul(t *testing.T) {
m1 := money.Money{M: 67} //67 cents!!
m2 := money.Money{M: 6700} // 67 dollars
res := m2.Mul(&m1)
finResi := int64(4489) // 44 dollars and 89 cents
finResf := float64(44.89) // 44 dollars and 89 cents
if res.Valuei() != finResi {
t.Error("expected '4489' got: ", res.Valuei())
}
if res.Valuef() != finResf {
t.Error("expected '44.89' got: ", res.Valuef())
}
if m1.Valuei() != int64(67) {
t.Error("expected '67' got: ", m1.Valuei())
}
if m2.Valuei() != int64(6700) {
t.Error("expected '6700' got: ", m2.Valuei())
}
if m1.Valuef() != float64(0.67) {
t.Error("expected '0.67' got: ", m1.Valuef())
}
if m2.Valuef() != float64(67.00) {
t.Error("expected '67.00' got: ", m2.Valuef())
}
if res.StringD() != "44.89" {
t.Error("expected '44.89' got: ", res.StringD())
}
}
// check subtraction is good but also that original values are not modified
func TestMoneySub(t *testing.T) {
m1 := money.Money{M: 67}
m2 := money.Money{M: 6700}
res := m2.Sub(&m1)
finResi := int64(6633)
finResf := float64(66.33)
if res.Valuei() != finResi {
t.Error("expected '6633' got: ", res.Valuei())
}
if res.Valuef() != finResf {
t.Error("expected '66.33' got: ", res.Valuef())
}
if m1.Valuei() != int64(67) {
t.Error("expected '67' got: ", m1.Valuei())
}
if m2.Valuei() != int64(6700) {
t.Error("expected '6700' got: ", m2.Valuei())
}
if m1.Valuef() != float64(0.67) {
t.Error("expected '0.67' got: ", m1.Valuef())
}
if m2.Valuef() != float64(67.00) {
t.Error("expected '67.00' got: ", m2.Valuef())
}
if res.StringD() != "66.33" {
t.Error("expected '66.33' got: ", res.StringD())
}
}
// verify subtracting negatives with updates does UPDATE and change original values
// and returns correct results
func TestMoneyNegativeSubUpdate(t *testing.T) {
var val1Neg int64 = -1 //-0.01 cents
var val2Pos int64 = 6700 //-67.00 dollars
m1Neg := money.Money{}
m2Pos := money.Money{}
m1SetNeg := m1Neg.Updatei(val1Neg)
m2SetPos := m2Pos.Updatei(val2Pos)
resNeg := m1SetNeg.Sub(m2SetPos)
vali := resNeg.Valuei()
valf := resNeg.Valuef()
if vali != int64(-6701) {
t.Error("expected negative '-6701' got: ", vali)
}
if valf != float64(-67.01) {
t.Error("expected negative '-67.01' got: ", valf)
}
// verify return values from update were set correctly
if m1SetNeg.Valuei() != val1Neg {
t.Error("expected negative '-1' got: ", m1SetNeg.Valuei())
}
if m2SetPos.Valuei() != val2Pos {
t.Error("expected negative '6700' got: ", m2SetPos.Valuei())
}
// verify original values for an update were updated
if m1Neg.Valuei() != val1Neg {
t.Error("expected negative '-1' got: ", m1Neg.Valuei())
}
if m2Pos.Valuei() != val2Pos {
t.Error("expected negative '6700' got: ", m2Pos.Valuei())
}
}
// check division is good but also that original values are not modified
func TestMoneyDiv(t *testing.T) {
m1 := money.Money{M: 67} //67 cents!!
m2 := money.Money{M: 6700} // 67 dollars
res := m2.Div(&m1)
finResi := int64(10000)
finResf := float64(100.00)
if res.Valuei() != finResi {
t.Error("expected '10000' got: ", res.Valuei())
}
if res.Valuef() != finResf {
t.Error("expected '100.00' got: ", res.Valuef())
}
if m1.Valuei() != int64(67) {
t.Error("expected '67' got: ", m1.Valuei())
}
if m2.Valuei() != int64(6700) {
t.Error("expected '6700' got: ", m2.Valuei())
}
if m1.Valuef() != float64(0.67) {
t.Error("expected '0.67' got: ", m1.Valuef())
}
if m2.Valuef() != float64(67.00) {
t.Error("expected '67.00' got: ", m2.Valuef())
}
if res.StringD() != "100.00" {
t.Error("expected '100.00' got: ", res.StringD())
}
}
func TestMoneyValueIntAndFloat(t *testing.T) {
val := money.Money{M: 123456}
if val.Valuei() != int64(123456) {
t.Error("Valuei() should be int64 '123456'", val.Valuei())
}
if val.Valuef() != float64(1234.56) {
t.Error("Valuef() should be float64 '123456'", val.Valuef())
}
if val.ValueiTrunc() != int64(1234) {
t.Error("ValueiTrunc() should be int64 '1234'", val.ValueiTrunc())
}
if val.StringD() != "1234.56" {
t.Error("money struct init StringD() should be value '1234.56'", val.StringD())
}
if val.StringC() != "1234,56" {
t.Error("money struct init StringC() should be value '1234,56'", val.StringC())
}
}
// Neg value make sure 'val' is not updated
func TestMoneyNegNotMutable(t *testing.T) {
val := money.Money{M: 123456}
neg := val.Neg()
if val.Valuei() != int64(123456) {
t.Error("val should be int64 '123456'", val.Valuei())
}
if val.Valuef() != float64(1234.56) {
t.Error("val should be int64 '1234.56'", val.Valuef())
}
if neg.Valuei() != int64(-123456) {
t.Error("neg.Valuei should be int64 '-123456'", neg.Valuei())
}
if neg.Valuef() != float64(-1234.56) {
t.Error("neg.Valuef should be float64 '-1234.56'", neg.Valuef())
}
if val.StringD() != "1234.56" {
t.Error("val.StringD() should be '1234.56'", val.StringD())
}
// TODO oddity for negative money values!!!!
if neg.StringD() != "-1234.56" {
t.Error("neg.StringD() should be '-1234.56'", neg.StringD())
}
}
func TestMoneyDivByZero(t *testing.T) {
m1 := money.Money{}
m2 := money.Money{M: int64(1)}
m3 := money.Money{M: int64(72684839824903281)}
m4 := money.Money{}
m4.Updatef(float64(478326437489327489327838462381))
res1 := m2.Div(&m1)
res2 := m3.Div(&m1)
res3 := m4.Div(&m1)
if res1.Valuei() != int64(-9223372036854775807) {
t.Error("expected '-9223372036854775807' got: ", res1.Valuei())
}
if res2.Valuei() != int64(-9223372036854775807) {
t.Error("expected '-9223372036854775807' got: ", res2.Valuei())
}
if res3.Valuei() != int64(9223372036854775807) {
t.Error("expected '9223372036854775807' got: ", res3.Valuei())
}
if res1.Valuef() != float64(-9.223372036854776e+16) {
t.Error("expected '-9223372036854775807' got: ", res1.Valuef())
}
if res2.Valuef() != float64(-9.223372036854776e+16) {
t.Error("expected '-9223372036854775807' got: ", res2.Valuef())
}
if res3.Valuef() != float64(9.223372036854776e+16) {
t.Error("expected '9223372036854775807' got: ", res3.Valuef())
}
}
func TestMoneyAbs(t *testing.T) {
v1 := int64(7839)
v2 := float64(38261748.09)
m1 := money.Money{M: -v1}
m2 := money.Money{}
m2.Updatef(-v2)
m1abs := m1.Abs()
m2abs := m2.Abs()
m1pos := money.Money{M: v1}
m2pos := money.Money{}
m2pos.Updatef(v2)
if m1abs.Valuei() != m1pos.Valuei() {
t.Error("expected '7839' got: ", m1abs.Valuei())
}
if m2abs.Valuei() != m2pos.Valuei() {
t.Error("expected '3826174809' got: ", m2abs.Valuei())
}
if m1.Abs().Valuei() != m1pos.Valuei() {
t.Error("expected '7839' got: ", m1.Abs().Valuei())
}
if m2.Abs().Valuei() != m2pos.Valuei() {
t.Error("expected '3826174809' got:", m2.Abs().Valuei())
}
//verify original values are still negative
if m1.Valuei() != -m1pos.Valuei() {
t.Error("expected '-7839' got: ", m1.Valuei())
}
if m2.Valuei() != -m2pos.Valuei() {
t.Error("expected '-3826174809' got: ", m2.Valuei())
}
}
// check addition is good but also that original values are not modified
func TestMoneyAdd(t *testing.T) {
m1 := money.Money{M: int64(67)}
m2 := money.Money{M: int64(6700)}
res := m1.Add(&m2)
finResi := int64(6767)
finResf := float64(67.67)
if res.Valuei() != finResi {
t.Error("expected '6767' got: ", res.Valuei())
}
if res.Valuef() != finResf {
t.Error("expected '6767' got: ", res.Valuef())
}
if m1.Valuei() != int64(67) {
t.Error("expected '67' got: ", m1.Valuei())
}
if m2.Valuei() != int64(6700) {
t.Error("expected '6700' got: ", m2.Valuei())
}
if m1.Valuef() != float64(0.67) {
t.Error("expected '0.67' got: ", m1.Valuef())
}
if m2.Valuef() != float64(67.00) {
t.Error("expected '67.00' got: ", m2.Valuef())
}
if res.StringD() != "67.67" {
t.Error("expected '67.67' got: ", res.StringD())
}
if res.StringC() != "67,67" {
t.Error("expected '67,67' got: ", res.StringC())
}
}
func BenchmarkFormatUSD(b *testing.B) {
mon := money.Money{M: 123456}
for i := 0; i < b.N; i++ {
_, _ = mon.Format("USD")
}
}
func BenchmarkNegValueForMoney(b *testing.B) {
for i := 0; i < b.N; i++ {
val := money.Money{M: 123456}
val.Neg()
}
}