Add test cases

Source/ProofOfConcept/Services/ZoneDeterminatorService.cs

@@ -1,3 +1,4 @@
+using System.Diagnostics;
 using Microsoft.Extensions.Options;
 using NetTopologySuite.Features;
 using NetTopologySuite.Geometries;
@@ -45,14 +46,21 @@ public class ZoneDeterminatorService
             return Result.Success(zone.Attributes["zoneid"].ToString()!);
     }
 
-    private async Task InitializeAsync(CancellationToken cancellationToken = default(CancellationToken))
+    public async Task InitializeAsync(CancellationToken cancellationToken = default(CancellationToken))
     {
         this.logger.LogTrace("Initializing...");
-        
+        Stopwatch sw = Stopwatch.StartNew();
+
+        this.logger.LogTrace("Reading file...");
         string geojson = await File.ReadAllTextAsync(this.configuration.ZoneFilePath, cancellationToken);
+        this.logger.LogTrace("File read in {Elapsed} ms", sw.ElapsedMilliseconds);
+        
+        this.logger.LogTrace("Parsing geojson...");
         GeoJsonReader reader = new GeoJsonReader();
         this.parkingZones = reader.Read<FeatureCollection>(geojson);
-
+        this.logger.LogTrace("Geojson parsed in {Elapsed} ms: {FeatureCount} features", sw.ElapsedMilliseconds, this.parkingZones.Count);
+        
+        this.initialized = true;
         this.logger.LogInformation("Initialized");
     }
 }