Initial commit: Purrse personal finance app

Self-hosted, plugin-extensible personal finance manager built with ASP.NET Core 9.0, Vue 3 + Vuetify 3, and PostgreSQL 17. Backend (8 .NET projects): - Core: 19 domain models, 6 enums, 14 DTOs, 12 service interfaces - Data: EF Core DbContext, 16 entity configurations, category seeder - API: 14 controllers, 15 services, JWT auth, SignalR, middleware - Plugins: Abstractions + OFX/CSV/QIF file parsers - Tests: 28 xUnit tests (fingerprinting, duplicate detection, parsers) Frontend (Vue 3 + Vuetify 3 + TypeScript): - 13 views, Pinia stores, Axios API services with JWT interceptors - Dashboard, accounts, transactions, categories, imports, and more Deployment: - Docker Compose (PostgreSQL 17 + .NET API + nginx frontend) - Auto-migration on startup Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-08 08:56:46 -05:00
commit 6520ebf221
169 changed files with 7180 additions and 0 deletions
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+using FluentAssertions;
+using Microsoft.EntityFrameworkCore;
+using Purrse.Api.Services;
+using Purrse.Core.Enums;
+using Purrse.Core.Helpers;
+using Purrse.Core.Models;
+using Purrse.Data;
+
+namespace Purrse.Tests.Services;
+
+public class DuplicateDetectionServiceTests
+{
+    private PurrseDbContext CreateContext()
+    {
+        var options = new DbContextOptionsBuilder<PurrseDbContext>()
+            .UseInMemoryDatabase(Guid.NewGuid().ToString())
+            .Options;
+        return new PurrseDbContext(options);
+    }
+
+    [Fact]
+    public void CalculateConfidence_ExactMatch_ReturnsHighScore()
+    {
+        using var db = CreateContext();
+        var service = new DuplicateDetectionService(db);
+
+        var existing = new Transaction
+        {
+            Id = Guid.NewGuid(),
+            Amount = -42.50m,
+            Date = new DateTime(2024, 1, 15),
+            PayeeName = "WALMART STORE #1234",
+            CheckNumber = "1001"
+        };
+
+        var score = service.CalculateConfidence(existing, new DateTime(2024, 1, 15), -42.50m, "WALMART STORE #1234", null, "1001");
+
+        score.Should().BeGreaterOrEqualTo(0.85, "exact match on amount + date + payee + check# should auto-match");
+    }
+
+    [Fact]
+    public void CalculateConfidence_DifferentAmount_ReturnsLowScore()
+    {
+        using var db = CreateContext();
+        var service = new DuplicateDetectionService(db);
+
+        var existing = new Transaction
+        {
+            Id = Guid.NewGuid(),
+            Amount = -42.50m,
+            Date = new DateTime(2024, 1, 15),
+            PayeeName = "WALMART"
+        };
+
+        var score = service.CalculateConfidence(existing, new DateTime(2024, 1, 15), -100.00m, "TARGET", null, null);
+
+        score.Should().BeLessThan(0.50, "different amount and payee should not match");
+    }
+
+    [Fact]
+    public void CalculateConfidence_SameAmountDifferentDay_ReturnsMediumScore()
+    {
+        using var db = CreateContext();
+        var service = new DuplicateDetectionService(db);
+
+        var existing = new Transaction
+        {
+            Id = Guid.NewGuid(),
+            Amount = -42.50m,
+            Date = new DateTime(2024, 1, 15),
+            PayeeName = "WALMART"
+        };
+
+        var score = service.CalculateConfidence(existing, new DateTime(2024, 1, 16), -42.50m, "WALMART", null, null);
+
+        // Amount match (0.40) + 1-day date (0.20) + payee match (0.20) = 0.80
+        score.Should().BeGreaterOrEqualTo(0.50);
+    }
+
+    [Fact]
+    public async Task FindDuplicateAsync_ExactFingerprint_ReturnsMatch()
+    {
+        using var db = CreateContext();
+        var accountId = Guid.NewGuid();
+        var date = new DateTime(2024, 1, 15);
+        var amount = -42.50m;
+        var fitId = "FIT123";
+
+        var fingerprint = TransactionFingerprint.Generate(accountId, date, amount, fitId);
+
+        db.Transactions.Add(new Transaction
+        {
+            Id = Guid.NewGuid(),
+            AccountId = accountId,
+            Date = date,
+            Amount = amount,
+            FitId = fitId,
+            Fingerprint = fingerprint
+        });
+        await db.SaveChangesAsync();
+
+        var service = new DuplicateDetectionService(db);
+        var match = await service.FindDuplicateAsync(accountId, date, amount, null, fitId, null);
+
+        match.Should().NotBeNull();
+        match!.Confidence.Should().Be(1.0);
+    }
+
+    [Fact]
+    public async Task FindDuplicateAsync_NoMatch_ReturnsNull()
+    {
+        using var db = CreateContext();
+        var service = new DuplicateDetectionService(db);
+
+        var match = await service.FindDuplicateAsync(Guid.NewGuid(), DateTime.Now, -10m, "TEST", null, null);
+        match.Should().BeNull();
+    }
+}