Adding Flags API

tests/api/MicCheck.Api.Tests.Unit/Data/DatabaseUrlParserTests.cs

@@ -0,0 +1,52 @@
+using NUnit.Framework;
+using MicCheck.Api.Data;
+
+namespace MicCheck.Api.Tests.Unit.Data;
+
+[TestFixture]
+public class DatabaseUrlParserTests
+{
+    [Test]
+    public void WhenAFullDatabaseUrlIsParsed_ThenAllComponentsAreExtracted()
+    {
+        var url = "postgresql://miccheck:password@localhost:5432/miccheck";
+
+        var result = DatabaseUrlParser.ToNpgsqlConnectionString(url);
+
+        Assert.That(result, Does.Contain("Host=localhost"));
+        Assert.That(result, Does.Contain("Port=5432"));
+        Assert.That(result, Does.Contain("Database=miccheck"));
+        Assert.That(result, Does.Contain("Username=miccheck"));
+        Assert.That(result, Does.Contain("Password=password"));
+    }
+
+    [Test]
+    public void WhenADatabaseUrlWithNoExplicitPortIsParsed_ThenPortDefaultsTo5432()
+    {
+        var url = "postgresql://user:pass@db.example.com/mydb";
+
+        var result = DatabaseUrlParser.ToNpgsqlConnectionString(url);
+
+        Assert.That(result, Does.Contain("Port=5432"));
+    }
+
+    [Test]
+    public void WhenADatabaseUrlWithACustomPortIsParsed_ThenThatPortIsUsed()
+    {
+        var url = "postgresql://user:pass@db.example.com:5433/mydb";
+
+        var result = DatabaseUrlParser.ToNpgsqlConnectionString(url);
+
+        Assert.That(result, Does.Contain("Port=5433"));
+    }
+
+    [Test]
+    public void WhenADatabaseUrlContainsSpecialCharactersInPassword_ThenTheyArePreserved()
+    {
+        var url = "postgresql://user:s3cr3t@host:5432/db";
+
+        var result = DatabaseUrlParser.ToNpgsqlConnectionString(url);
+
+        Assert.That(result, Does.Contain("Password=s3cr3t"));
+    }
+}