PCRB follow up client side logic

MesaFabApproval.API.Test/ApprovalServiceTests.cs

@@ -0,0 +1,55 @@
+using System;
+using System.Threading.Tasks;
+
+using MesaFabApproval.API.Services;
+using MesaFabApproval.Shared.Models;
+
+using Microsoft.Extensions.Caching.Memory;
+using Microsoft.Extensions.Logging;
+
+using Moq;
+
+using Xunit;
+
+namespace MesaFabApproval.API.Test;
+
+public class ApprovalServiceTests {
+    private readonly Mock<ILogger<ApprovalService>> _loggerMock;
+    private readonly Mock<IMemoryCache> _cacheMock;
+    private readonly Mock<IDalService> _dalServiceMock;
+    private readonly Mock<IUserService> _userServiceMock;
+    private readonly ApprovalService _approvalService;
+
+    public ApprovalServiceTests() {
+        _loggerMock = new Mock<ILogger<ApprovalService>>();
+        _cacheMock = new Mock<IMemoryCache>();
+        _dalServiceMock = new Mock<IDalService>();
+        _userServiceMock = new Mock<IUserService>();
+        _approvalService = new ApprovalService(_loggerMock.Object, _cacheMock.Object, _dalServiceMock.Object, _userServiceMock.Object);
+    }
+
+    [Fact]
+    public async Task DeleteApproval_ValidApprovalID_DeletesApproval() {
+        int approvalID = 1;
+        _dalServiceMock.Setup(d => d.ExecuteAsync(It.IsAny<string>(), It.IsAny<object>())).ReturnsAsync(1);
+
+        await _approvalService.DeleteApproval(approvalID);
+
+        _dalServiceMock.Verify(d => d.ExecuteAsync(It.IsAny<string>(), It.IsAny<object>()), Times.Once);
+    }
+
+    [Fact]
+    public async Task DeleteApproval_InvalidApprovalID_ThrowsArgumentException() {
+        int approvalID = 0;
+
+        await Assert.ThrowsAsync<ArgumentException>(() => _approvalService.DeleteApproval(approvalID));
+    }
+
+    [Fact]
+    public async Task DeleteApproval_DeletionFails_ThrowsException() {
+        int approvalID = 1;
+        _dalServiceMock.Setup(d => d.ExecuteAsync(It.IsAny<string>(), It.IsAny<object>())).ReturnsAsync(0);
+
+        await Assert.ThrowsAsync<Exception>(() => _approvalService.DeleteApproval(approvalID));
+    }
+}