// 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())
}
}
// 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 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())
}
}
// 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())
}
}
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())
}
}
// 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())
}
}