/
Money_Spec.cs
96 lines (79 loc) · 3.02 KB
/
Money_Spec.cs
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using System;
using Marketplace.Ads.Domain.Shared;
using Xunit;
namespace Marketplace.ClassifiedAds.Tests
{
public class Money_Spec
{
static readonly ICurrencyLookup CurrencyLookup =
new FakeCurrencyLookup();
[Fact]
public void FromString_and_FromDecimal_should_be_equal()
{
var firstAmount = Money.FromDecimal(5, "EUR", CurrencyLookup);
var secondAmount = Money.FromString("5.00", "EUR", CurrencyLookup);
Assert.Equal(firstAmount, secondAmount);
}
[Fact]
public void Sum_of_money_gives_full_amount()
{
var coin1 = Money.FromDecimal(1, "EUR", CurrencyLookup);
var coin2 = Money.FromDecimal(2, "EUR", CurrencyLookup);
var coin3 = Money.FromDecimal(2, "EUR", CurrencyLookup);
var banknote = Money.FromDecimal(5, "EUR", CurrencyLookup);
Assert.Equal(banknote, coin1 + coin2 + coin3);
}
[Fact]
public void Throw_when_too_many_decimal_places()
=> Assert.Throws<ArgumentOutOfRangeException>(
() =>
Money.FromDecimal(100.123m, "EUR", CurrencyLookup)
);
[Fact]
public void Throws_on_adding_different_currencies()
{
var firstAmount = Money.FromDecimal(5, "USD", CurrencyLookup);
var secondAmount = Money.FromDecimal(5, "EUR", CurrencyLookup);
Assert.Throws<CurrencyMismatchException>(
() =>
firstAmount + secondAmount
);
}
[Fact]
public void Throws_on_substracting_different_currencies()
{
var firstAmount = Money.FromDecimal(5, "USD", CurrencyLookup);
var secondAmount = Money.FromDecimal(5, "EUR", CurrencyLookup);
Assert.Throws<CurrencyMismatchException>(
() =>
firstAmount - secondAmount
);
}
[Fact]
public void Two_of_same_amount_but_different_Currencies_should_not_be_equal()
{
var firstAmount = Money.FromDecimal(5, "EUR", CurrencyLookup);
var secondAmount = Money.FromDecimal(5, "USD", CurrencyLookup);
Assert.NotEqual(firstAmount, secondAmount);
}
[Fact]
public void Two_of_same_amount_should_be_equal()
{
var firstAmount = Money.FromDecimal(5, "EUR", CurrencyLookup);
var secondAmount = Money.FromDecimal(5, "EUR", CurrencyLookup);
Assert.Equal(firstAmount, secondAmount);
}
[Fact]
public void Unknown_currency_should_not_be_allowed()
=> Assert.Throws<ArgumentException>(
() =>
Money.FromDecimal(100, "WHAT?", CurrencyLookup)
);
[Fact]
public void Unused_currency_should_not_be_allowed()
=> Assert.Throws<ArgumentException>(
() =>
Money.FromDecimal(100, "DEM", CurrencyLookup)
);
}
}