Add VenueController tests

backend/LeedsBeerQuest.API/LeedsBeerQuest.API.Tests/Controllers/VenueControllerTests.cs

@@ -1,3 +1,14 @@
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using LeedsBeerQuest.API.Controllers;
+using LeedsBeerQuest.API.Data.Models;
+using LeedsBeerQuest.API.Data.Services.Interfaces;
+using LeedsBeerQuest.API.Tests.Data.Services;
+using LeedsBeerQuest.API.Tests.TestHelpers;
+using Microsoft.AspNetCore.Mvc;
+using NSubstitute;
+using NSubstitute.ReturnsExtensions;
 using NUnit.Framework;
 
 namespace LeedsBeerQuest.API.Tests.Controllers;
@@ -5,5 +16,65 @@ namespace LeedsBeerQuest.API.Tests.Controllers;
 [TestFixture]
 public class VenueControllerTests
 {
-    
+    private IVenueService _venueService;
+    private VenueController _venueController;
+
+    [SetUp]
+    public void SetUp()
+    {
+        _venueService = Substitute.For<IVenueService>();
+        _venueController = new VenueController(_venueService);
+    }
+
+    [Test]
+    public async Task GetAll_ReturnsAllVenues_WhenNoVenueIdIsPassed()
+    {
+        _venueService.GetAllVenues().Returns(TestData.VenueTestData);
+
+        var result = await _venueController.GetAll();
+        var resultValue = ControllerTestHelper.ActionResultToOkResultValue<IEnumerable<Venue>>(result);
+
+        Assert.NotNull(resultValue);
+        Assert.AreEqual(1, resultValue.Count());
+    }
+
+    [Test]
+    public async Task GetVenue_ReturnsVenue_WhenVenueIdIsPassedAndIsReturnedFromService()
+    {
+        var venueTestData = TestData.VenueTestData.ToArray();
+        _venueService.GetVenue(Arg.Any<int>()).Returns(venueTestData[0]);
+
+        var result = await _venueController.GetVenue(1);
+        var resultValue = ControllerTestHelper.ActionResultToOkResultValue<Venue>(result);
+
+        Assert.AreEqual(venueTestData[0].Id, resultValue.Id);
+        Assert.AreEqual(venueTestData[0].Name, resultValue.Name);
+    }
+
+    [TestCase(0)]
+    [TestCase(-1)]
+    [TestCase(-1000)]
+    public async Task GetVenue_ReturnsBadRequest_WhenVenueIdPassedIsInvalid(int venueId)
+    {
+        var result = await _venueController.GetVenue(-1);
+
+        var badRequestResult = result as BadRequestObjectResult;
+        Assert.NotNull(badRequestResult);
+
+        var badRequestString = badRequestResult.Value as string;
+        Assert.NotNull(badRequestString);
+
+        Assert.AreEqual("Requested venue ID must be more than zero", badRequestString);
+    }
+
+    [Test]
+    public async Task GetVenue_ReturnsNotFound_WhenVenueIsNotReturnedFromService()
+    {
+        _venueService.GetVenue(Arg.Any<int>()).ReturnsNull();
+
+        var result = await _venueController.GetVenue(1);
+        var notFoundResult = result as NotFoundResult;
+
+        Assert.NotNull(notFoundResult);
+    }
 }