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export MustNew
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Rekseto authored and Rekseto committed Jun 28, 2023
1 parent 0a8722b commit 708cba7
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Showing 2 changed files with 87 additions and 84 deletions.
10 changes: 10 additions & 0 deletions money.go
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Original file line number Diff line number Diff line change
Expand Up @@ -308,3 +308,13 @@ func (m Money) Allocate(rs ...int) ([]Money, error) {

return ms, nil
}

// It panics if error occurs.
func MustNew(amount int64, code CurrencyCode) Money {
m, err := New(amount, code)
if err != nil {
panic(err)
}

return m
}
161 changes: 77 additions & 84 deletions money_test.go
View file
Original file line number Diff line number Diff line change
Expand Up @@ -3,22 +3,15 @@ package monies_test
import (
"encoding/json"
"fmt"

"github.com/Craftserve/monies"

"testing"

"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"testing"
)

func MustNew(amount int64, code monies.CurrencyCode) monies.Money {
m, err := monies.New(amount, code)
if err != nil {
panic(err)
}

return m
}

func TestNew(t *testing.T) {
type testCase struct {
Name string
Expand Down Expand Up @@ -90,9 +83,9 @@ func TestEquals(t *testing.T) {
Expected bool
ExpectedErr error
}{
{"SUCCESS", MustNew(100, monies.EUR), MustNew(100, monies.EUR), true, nil},
{"FAIL_OTHER_CURRENCIES", MustNew(100, monies.USD), MustNew(100, monies.EUR), false, monies.ErrCurrencyMismatch},
{"FAIL_OTHER_AMOUNTS", MustNew(50, monies.EUR), MustNew(100, monies.EUR), false, nil},
{"SUCCESS", monies.MustNew(100, monies.EUR), monies.MustNew(100, monies.EUR), true, nil},
{"FAIL_OTHER_CURRENCIES", monies.MustNew(100, monies.USD), monies.MustNew(100, monies.EUR), false, monies.ErrCurrencyMismatch},
{"FAIL_OTHER_AMOUNTS", monies.MustNew(50, monies.EUR), monies.MustNew(100, monies.EUR), false, nil},
}

for _, tC := range testCases {
Expand All @@ -115,9 +108,9 @@ func TestLess(t *testing.T) {
Expected bool
ExpectedErr error
}{
{"SUCCESS", MustNew(50, monies.EUR), MustNew(100, monies.EUR), true, nil},
{"FAIL_OTHER_CURRENCIES", MustNew(100, monies.USD), MustNew(100, monies.EUR), false, monies.ErrCurrencyMismatch},
{"FAIL_OTHER_AMOUNTS", MustNew(150, monies.EUR), MustNew(100, monies.EUR), false, nil},
{"SUCCESS", monies.MustNew(50, monies.EUR), monies.MustNew(100, monies.EUR), true, nil},
{"FAIL_OTHER_CURRENCIES", monies.MustNew(100, monies.USD), monies.MustNew(100, monies.EUR), false, monies.ErrCurrencyMismatch},
{"FAIL_OTHER_AMOUNTS", monies.MustNew(150, monies.EUR), monies.MustNew(100, monies.EUR), false, nil},
}

for _, tC := range testCases {
Expand All @@ -138,8 +131,8 @@ func TestIsZero(t *testing.T) {
Money monies.Money
Expected bool
}{
{"SUCCESS", MustNew(0, monies.EUR), true},
{"NOT_ZERO", MustNew(1, monies.USD), false},
{"SUCCESS", monies.MustNew(0, monies.EUR), true},
{"NOT_ZERO", monies.MustNew(1, monies.USD), false},
}

for _, tC := range testCases {
Expand All @@ -156,9 +149,9 @@ func TestIsNegative(t *testing.T) {
Money monies.Money
Expected bool
}{
{"SUCCESS", MustNew(-1, monies.EUR), true},
{"POSITIVE", MustNew(1, monies.EUR), false},
{"ZERO", MustNew(0, monies.EUR), false},
{"SUCCESS", monies.MustNew(-1, monies.EUR), true},
{"POSITIVE", monies.MustNew(1, monies.EUR), false},
{"ZERO", monies.MustNew(0, monies.EUR), false},
}

for _, tC := range testCases {
Expand All @@ -175,9 +168,9 @@ func TestIsPositive(t *testing.T) {
Money monies.Money
Expected bool
}{
{"SUCCESS", MustNew(1, monies.EUR), true},
{"NEGATIVE", MustNew(-1, monies.EUR), false},
{"ZERO", MustNew(0, monies.EUR), false},
{"SUCCESS", monies.MustNew(1, monies.EUR), true},
{"NEGATIVE", monies.MustNew(-1, monies.EUR), false},
{"ZERO", monies.MustNew(0, monies.EUR), false},
}

for _, tC := range testCases {
Expand All @@ -194,9 +187,9 @@ func TestAbsolute(t *testing.T) {
Money monies.Money
Expected int64
}{
{"POSITIVE", MustNew(1, monies.EUR), 1},
{"NEGATIVE", MustNew(-1, monies.EUR), 1},
{"ZERO", MustNew(0, monies.EUR), 0},
{"POSITIVE", monies.MustNew(1, monies.EUR), 1},
{"NEGATIVE", monies.MustNew(-1, monies.EUR), 1},
{"ZERO", monies.MustNew(0, monies.EUR), 0},
}

for _, tC := range testCases {
Expand All @@ -214,9 +207,9 @@ func TestNegative(t *testing.T) {
Money monies.Money
Expected int64
}{
{"POSITIVE", MustNew(1, monies.EUR), -1},
{"NEGATIVE", MustNew(-1, monies.EUR), -1},
{"ZERO", MustNew(0, monies.EUR), 0},
{"POSITIVE", monies.MustNew(1, monies.EUR), -1},
{"NEGATIVE", monies.MustNew(-1, monies.EUR), -1},
{"ZERO", monies.MustNew(0, monies.EUR), 0},
}

for _, tC := range testCases {
Expand All @@ -235,9 +228,9 @@ func TestAdd(t *testing.T) {
Expected monies.Money
ExpectedErr error
}{
{"POSITIVE_POSITIVE", MustNew(50, monies.EUR), MustNew(100, monies.EUR), MustNew(150, monies.EUR), nil},
{"POSITIVE_NEGATIVE", MustNew(100, monies.EUR), MustNew(-50, monies.EUR), MustNew(50, monies.EUR), nil},
{"CURRENCY_MISMATCH", MustNew(100, monies.EUR), MustNew(-50, monies.USD), MustNew(50, monies.USD), monies.ErrCurrencyMismatch},
{"POSITIVE_POSITIVE", monies.MustNew(50, monies.EUR), monies.MustNew(100, monies.EUR), monies.MustNew(150, monies.EUR), nil},
{"POSITIVE_NEGATIVE", monies.MustNew(100, monies.EUR), monies.MustNew(-50, monies.EUR), monies.MustNew(50, monies.EUR), nil},
{"CURRENCY_MISMATCH", monies.MustNew(100, monies.EUR), monies.MustNew(-50, monies.USD), monies.MustNew(50, monies.USD), monies.ErrCurrencyMismatch},
}

for _, tC := range testCases {
Expand All @@ -262,9 +255,9 @@ func TestSubstract(t *testing.T) {
Expected monies.Money
ExpectedErr error
}{
{"POSITIVE_POSITIVE", MustNew(100, monies.EUR), MustNew(100, monies.EUR), MustNew(0, monies.EUR), nil},
{"POSITIVE_NEGATIVE", MustNew(100, monies.EUR), MustNew(-50, monies.EUR), MustNew(150, monies.EUR), nil},
{"CURRENCY_MISMATCH", MustNew(100, monies.EUR), MustNew(-50, monies.USD), MustNew(50, monies.USD), monies.ErrCurrencyMismatch},
{"POSITIVE_POSITIVE", monies.MustNew(100, monies.EUR), monies.MustNew(100, monies.EUR), monies.MustNew(0, monies.EUR), nil},
{"POSITIVE_NEGATIVE", monies.MustNew(100, monies.EUR), monies.MustNew(-50, monies.EUR), monies.MustNew(150, monies.EUR), nil},
{"CURRENCY_MISMATCH", monies.MustNew(100, monies.EUR), monies.MustNew(-50, monies.USD), monies.MustNew(50, monies.USD), monies.ErrCurrencyMismatch},
}

for _, tC := range testCases {
Expand All @@ -285,9 +278,9 @@ func TestMultiply(t *testing.T) {
Multiplier int64
Expected monies.Money
}{
{"BY_ONE", MustNew(100, monies.EUR), 1, MustNew(100, monies.EUR)},
{"BY_ZERO", MustNew(100, monies.EUR), 0, MustNew(0, monies.EUR)},
{"SUCCESS", MustNew(100, monies.EUR), 2, MustNew(200, monies.EUR)},
{"BY_ONE", monies.MustNew(100, monies.EUR), 1, monies.MustNew(100, monies.EUR)},
{"BY_ZERO", monies.MustNew(100, monies.EUR), 0, monies.MustNew(0, monies.EUR)},
{"SUCCESS", monies.MustNew(100, monies.EUR), 2, monies.MustNew(200, monies.EUR)},
}

for _, tC := range testCases {
Expand All @@ -305,13 +298,13 @@ func TestRound(t *testing.T) {
Money monies.Money
Expected int64
}{
{"125_100", MustNew(125, monies.EUR), 100},
{"175_200", MustNew(175, monies.EUR), 200},
{"349_300", MustNew(349, monies.EUR), 300},
{"351_400", MustNew(351, monies.EUR), 400},
{"0_0", MustNew(0, monies.EUR), 0},
{"-1_0", MustNew(-1, monies.EUR), 0},
{"-75_-100", MustNew(-75, monies.EUR), -100},
{"125_100", monies.MustNew(125, monies.EUR), 100},
{"175_200", monies.MustNew(175, monies.EUR), 200},
{"349_300", monies.MustNew(349, monies.EUR), 300},
{"351_400", monies.MustNew(351, monies.EUR), 400},
{"0_0", monies.MustNew(0, monies.EUR), 0},
{"-1_0", monies.MustNew(-1, monies.EUR), 0},
{"-75_-100", monies.MustNew(-75, monies.EUR), -100},
}

for _, tC := range testCases {
Expand All @@ -330,13 +323,13 @@ func TestMoneySplit(t *testing.T) {
Expected []int64
ExpectedErr error
}{
{MustNew(100, monies.EUR), 3, []int64{34, 33, 33}, nil},
{MustNew(100, monies.EUR), 4, []int64{25, 25, 25, 25}, nil},
{MustNew(5, monies.EUR), 3, []int64{2, 2, 1}, nil},
{MustNew(-101, monies.EUR), 4, []int64{-26, -25, -25, -25}, nil},
{MustNew(-101, monies.EUR), 4, []int64{-26, -25, -25, -25}, nil},
{MustNew(-2, monies.EUR), 3, []int64{-1, -1, 0}, nil},
{MustNew(-2, monies.EUR), -1, []int64{-1, -1, 0}, monies.ErrNegativeSplit},
{monies.MustNew(100, monies.EUR), 3, []int64{34, 33, 33}, nil},
{monies.MustNew(100, monies.EUR), 4, []int64{25, 25, 25, 25}, nil},
{monies.MustNew(5, monies.EUR), 3, []int64{2, 2, 1}, nil},
{monies.MustNew(-101, monies.EUR), 4, []int64{-26, -25, -25, -25}, nil},
{monies.MustNew(-101, monies.EUR), 4, []int64{-26, -25, -25, -25}, nil},
{monies.MustNew(-2, monies.EUR), 3, []int64{-1, -1, 0}, nil},
{monies.MustNew(-2, monies.EUR), -1, []int64{-1, -1, 0}, monies.ErrNegativeSplit},
}

for index, tC := range testCases {
Expand All @@ -363,12 +356,12 @@ func TestMoneyAllocate(t *testing.T) {
Expected []int64
ExpectedErr error
}{
{MustNew(100, monies.EUR), []int{50, 50}, []int64{50, 50}, nil},
{MustNew(100, monies.EUR), []int{30, 30, 30}, []int64{34, 33, 33}, nil},
{MustNew(200, monies.EUR), []int{25, 25, 50}, []int64{50, 50, 100}, nil},
{MustNew(5, monies.EUR), []int{50, 25, 25}, []int64{3, 1, 1}, nil},
{MustNew(-101, monies.EUR), []int{50, 50}, []int64{-51, -50}, nil},
{MustNew(-101, monies.EUR), []int{}, []int64{-26, -25}, monies.ErrNoRatios},
{monies.MustNew(100, monies.EUR), []int{50, 50}, []int64{50, 50}, nil},
{monies.MustNew(100, monies.EUR), []int{30, 30, 30}, []int64{34, 33, 33}, nil},
{monies.MustNew(200, monies.EUR), []int{25, 25, 50}, []int64{50, 50, 100}, nil},
{monies.MustNew(5, monies.EUR), []int{50, 25, 25}, []int64{3, 1, 1}, nil},
{monies.MustNew(-101, monies.EUR), []int{50, 50}, []int64{-51, -50}, nil},
{monies.MustNew(-101, monies.EUR), []int{}, []int64{-26, -25}, monies.ErrNoRatios},
}

for index, tC := range testCases {
Expand All @@ -394,11 +387,11 @@ func TestMoneyDisplay(t *testing.T) {
m monies.Money
expected string
}{
{MustNew(100, monies.GBP), "£1.00"},
{MustNew(100, monies.AED), "1.00 .\u062f.\u0625"},
{MustNew(-100, monies.GBP), "-£1.00"},
{MustNew(10, monies.GBP), "£0.10"},
{MustNew(100000, monies.GBP), "£1,000.00"},
{monies.MustNew(100, monies.GBP), "£1.00"},
{monies.MustNew(100, monies.AED), "1.00 .\u062f.\u0625"},
{monies.MustNew(-100, monies.GBP), "-£1.00"},
{monies.MustNew(10, monies.GBP), "£0.10"},
{monies.MustNew(100000, monies.GBP), "£1,000.00"},
}

for _, tC := range testCases {
Expand All @@ -412,10 +405,10 @@ func TestAsMajorUnits(t *testing.T) {
m monies.Money
expected float64
}{
{MustNew(100, monies.GBP), 1.00},
{MustNew(-100, monies.GBP), -1.00},
{MustNew(0, monies.GBP), 0},
{MustNew(0, monies.HUF), 0},
{monies.MustNew(100, monies.GBP), 1.00},
{monies.MustNew(-100, monies.GBP), -1.00},
{monies.MustNew(0, monies.GBP), 0},
{monies.MustNew(0, monies.HUF), 0},
}

for _, tC := range testCases {
Expand Down Expand Up @@ -482,7 +475,7 @@ func TestUnmarshalJSON(t *testing.T) {
Input: []byte(`{"amount": 100, "currency":"USD"}`),
UnexpectedErr: false,
ExpectedErr: nil,
Expected: MustNew(100, monies.USD),
Expected: monies.MustNew(100, monies.USD),
},
{
Name: "UNDEFINED_CURRENCY",
Expand Down Expand Up @@ -531,28 +524,28 @@ func TestTextMarshaller(t *testing.T) {
var testCases = []testCase{
{
Name: "SUCCESS",
Input: MustNew(100, monies.USD),
Input: monies.MustNew(100, monies.USD),
Expected: "1.00 USD",
},
{
Name: "SUCCESS",
Input: MustNew(150, monies.USD),
Input: monies.MustNew(150, monies.USD),
Expected: "1.50 USD",
},
{
Name: "SUCCESS",
Input: MustNew(1000, monies.USD),
Input: monies.MustNew(1000, monies.USD),
Expected: "10.00 USD",
},

{
Name: "SUCCESS",
Input: MustNew(10000, monies.USD),
Input: monies.MustNew(10000, monies.USD),
Expected: "100.00 USD",
},
{
Name: "SUCCESS",
Input: MustNew(10000, monies.VND),
Input: monies.MustNew(10000, monies.VND),
Expected: "10000.0 VND",
},
}
Expand All @@ -578,62 +571,62 @@ func TestTextUnmarshal(t *testing.T) {
var testCases = []testCase{
{
Name: "SUCCESS",
Expected: MustNew(100, monies.USD),
Expected: monies.MustNew(100, monies.USD),
Input: "1.00 USD",
ExpectedFail: false,
},
{
Name: "SUCCESS",
Expected: MustNew(150, monies.USD),
Expected: monies.MustNew(150, monies.USD),
Input: "1.50 USD",
ExpectedFail: false,
},
{
Name: "SUCCESS",
Expected: MustNew(100, monies.USD),
Expected: monies.MustNew(100, monies.USD),
Input: "1.00 USD",
ExpectedFail: false,
},
{
Name: "SUCCESS",
Expected: MustNew(1000, monies.USD),
Expected: monies.MustNew(1000, monies.USD),
Input: "10.00 USD",
ExpectedFail: false,
},
{
Name: "INVALID_TEXT",
Expected: MustNew(0, monies.USD),
Expected: monies.MustNew(0, monies.USD),
Input: "",
ExpectedFail: true,
},
{
Name: "SUCCESS",
Expected: MustNew(10000, monies.USD),
Expected: monies.MustNew(10000, monies.USD),
Input: "100.00 USD",
ExpectedFail: false,
},
{
Name: "SUCCESS",
Expected: MustNew(10000, monies.VND),
Expected: monies.MustNew(10000, monies.VND),
Input: "10000.0 VND",
ExpectedFail: false,
},
{
Name: "CURRENCY_NOT_FOUND",
Expected: MustNew(10000, monies.VND),
Expected: monies.MustNew(10000, monies.VND),
Input: "10000.0 UUU",
ExpectedFail: true,
},

{
Name: "WRONG_MINOR",
Expected: MustNew(10000, monies.VND),
Expected: monies.MustNew(10000, monies.VND),
Input: "10000.NULL USD",
ExpectedFail: true,
},
{
Name: "WRONG_MAJOR",
Expected: MustNew(10000, monies.VND),
Expected: monies.MustNew(10000, monies.VND),
Input: "NULL.0 USD",
ExpectedFail: true,
},
Expand Down

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