Core Tests (#1062)

* Added tests for SelfHostedAttribute

* Added Token Retrieval Tests

test/Core.Test/Utilities/SelfHostedAttributeTests.cs

@@ -0,0 +1,79 @@
+
+using Bit.Core.Utilities;
+using Bit.Core.Exceptions;
+using Microsoft.AspNetCore.Mvc.Filters;
+using Microsoft.Extensions.DependencyInjection;
+using NSubstitute;
+using Xunit;
+using System.Collections.Generic;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Routing;
+using Microsoft.AspNetCore.Mvc.Abstractions;
+
+namespace Bit.Core.Test.Utilities
+{
+    public class SelfHostedAttributeTests
+    {
+        [Fact]
+        public void NotSelfHosted_Throws_When_SelfHosted()
+        {
+            var sha = new SelfHostedAttribute { NotSelfHostedOnly = true };
+
+            Assert.Throws<BadRequestException>(() => sha.OnActionExecuting(GetContext(selfHosted: true)));
+        }
+
+        [Fact]
+        public void NotSelfHosted_Success_When_NotSelfHosted()
+        {
+            var sha = new SelfHostedAttribute { NotSelfHostedOnly = true };
+
+            sha.OnActionExecuting(GetContext(selfHosted: false));
+        }
+
+
+        [Fact]
+        public void SelfHosted_Success_When_SelfHosted()
+        {
+            var sha = new SelfHostedAttribute { SelfHostedOnly = true };
+
+            sha.OnActionExecuting(GetContext(selfHosted: true));
+        }
+
+        [Fact]
+        public void SelfHosted_Throws_When_NotSelfHosted()
+        {
+            var sha = new SelfHostedAttribute { SelfHostedOnly = true };
+
+            Assert.Throws<BadRequestException>(() => sha.OnActionExecuting(GetContext(selfHosted: false)));
+        }
+
+
+        // This generates a ActionExecutingContext with the needed injected
+        // service with the given value.
+        private ActionExecutingContext GetContext(bool selfHosted)
+        {
+            IServiceCollection services = new ServiceCollection();
+
+            var globalSettings = new GlobalSettings
+            {
+                SelfHosted = selfHosted
+            };
+
+            services.AddSingleton(globalSettings);
+
+            var httpContext = new DefaultHttpContext();
+            httpContext.RequestServices = services.BuildServiceProvider();
+
+            var context = Substitute.For<ActionExecutingContext>(
+                Substitute.For<ActionContext>(httpContext,
+                    new RouteData(),
+                    Substitute.For<ActionDescriptor>()), 
+                new List<IFilterMetadata>(), 
+                new Dictionary<string, object>(), 
+                Substitute.For<Controller>());
+
+            return context;
+        }
+    }
+}