Unit test improvements.

2026-07-30 12:35:33 +02:00
parent fe9b68dba0
commit 8145ff1054
22 changed files with 283 additions and 160 deletions
@@ -0,0 +1,57 @@
+using FinancialApi.Domain.Entities;
+using FinancialApi.Domain.Exceptions;
+using FluentAssertions;
+
+namespace FinancialApi.Domain.Tests;
+
+public class AccountTests
+{
+    [Theory]
+    [InlineData(AccountType.Credit)]
+    public void CreateCreditAccountType_ShouldAllowNegativeBalance(AccountType accountType)
+    {
+        var act = () => new Account(1, -100, accountType);
+
+        act()
+            .Balance.Should()
+            .BeNegative();
+    }
+
+    [Theory]
+    [InlineData(AccountType.Debit)]
+    [InlineData(AccountType.Revenue)]
+    [InlineData(AccountType.Liability)]
+    public void CreateDebitAccountType_ShouldNotAllowNegativeBalance(AccountType accountType)
+    {
+        var act = () => new Account(1, -100, accountType);
+
+        act.Should()
+            .Throw<InvalidStartingBalanceException>();
+    }
+
+    [Theory]
+    [InlineData(AccountType.Credit)]
+    public void GivenCreditAccountType_ShouldAllowNegativeBalance(AccountType accountType)
+    {
+        var account = new Account(1, 0, accountType);
+
+        var updatedAccount = account.ApplyPosting(100, EntryType.Debit);
+
+        updatedAccount.Balance.Should()
+            .BeNegative();
+    }
+
+    [Theory]
+    [InlineData(AccountType.Debit)]
+    [InlineData(AccountType.Revenue)]
+    [InlineData(AccountType.Liability)]
+    public void GivenDebitAccountType_ShouldNotAllowNegativeBalance(AccountType accountType)
+    {
+        var account = new Account(1, 0, accountType);
+
+        var act = () => account.ApplyPosting(100, EntryType.Debit);
+
+        act.Should()
+            .Throw<InsufficientFundsException>();
+    }
+}