Tests: Add BillingTest.Test_01_NoActiveAreaCommitments()

Tests/DatabaseSetup.cs

@@ -1,4 +1,5 @@
 using Elwig.Helpers;
+using Elwig.Helpers.Billing;
 using Microsoft.Data.Sqlite;
 using System.Reflection;
 
@@ -16,6 +17,11 @@ namespace Tests {
             await AppDbContext.ExecuteEmbeddedScript(Connection, Assembly.GetExecutingAssembly(), "Tests.Resources.Insert.sql");
         }
 
+        [OneTimeSetUp]
+        public async Task SetupBillingData() {
+            await BillingData.Init();
+        }
+
         [OneTimeTearDown]
         public async Task TeardownDatabase() {
             AppDbContext.ConnectionStringOverride = null;