refact

test/isnd.tests/UnitTestWebHost.cs

@@ -0,0 +1,55 @@
+using System;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.AspNetCore;
+using isn;
+using Xunit;
+using isn.Data;
+using Microsoft.Extensions.Options;
+using isn.Entities;
+using System.Threading.Tasks;
+using Microsoft.EntityFrameworkCore;
+using System.Diagnostics;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging;
+
+namespace nuget.host.tests
+{
+    public class UnitTestWebHost
+    {
+        const string testingUrl = "http://localhost:5000";
+
+
+        [Fact]
+        public void TestHaveTestDbContext()
+        {
+            string envVar = Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT");
+            Assert.Equal("Development", envVar);
+            IWebHost webhost = BuildWebHost(new string[] { "--urls", testingUrl });
+
+            using (var serviceScope = webhost.Services.CreateScope())
+            {
+                var services = serviceScope.ServiceProvider;
+
+                try
+                {
+                    var myDependency = services.GetRequiredService<ApplicationDbContext>();
+                    myDependency.Database.Migrate();
+                }
+                catch (Exception ex)
+                {
+                    var logger = services.GetRequiredService<ILogger<Program>>();
+                    logger.LogError(ex, "An error occurred.");
+                }
+            }
+
+        }
+
+
+
+        public static IWebHost BuildWebHost(string[] args) =>
+            WebHost.CreateDefaultBuilder(args)
+                .UseStartup<Startup>()
+                .Build();
+
+    }
+}