add some tests

Author: myarichuk

Simple.HttpClientFactory.Tests/ExceptionTranslatorTests.cs

@@ -7,6 +7,7 @@
 using System.Threading.Tasks;
 using Polly;
 using Polly.Timeout;
+using Simple.HttpClientFactory.MessageHandlers;
 using WireMock.RequestBuilders;
 using WireMock.ResponseBuilders;
 using WireMock.Server;
@@ -44,6 +45,22 @@ public TestException(string message) : base(message)
             }
         }
 
+        [Fact]
+        public void Exception_messege_handler_ctor_should_validate_first_param() => 
+            Assert.Throws<ArgumentNullException>(() => new ExceptionTranslatorRequestMiddleware(null, e => e));
+
+        [Fact]
+        public void Exception_messege_handler_ctor_should_validate_second_param() => 
+            Assert.Throws<ArgumentNullException>(() => new ExceptionTranslatorRequestMiddleware(e => true, null));
+
+        [Fact]
+        public void Exception_messege_handler_ctor_should_validate_first_param_overload() => 
+            Assert.Throws<ArgumentNullException>(() => new ExceptionTranslatorRequestMiddleware(null, e => e, new ExceptionTranslatorRequestMiddleware(e => true, e => e)));
+
+        [Fact]
+        public void Exception_messege_handler_ctor_should_validate_second_param_overload() => 
+            Assert.Throws<ArgumentNullException>(() => new ExceptionTranslatorRequestMiddleware(e => true, null, new ExceptionTranslatorRequestMiddleware(e => true, e => e)));
+
         [Fact]
         public async Task Exception_translator_can_translate_exception_types()
         {
@@ -81,6 +98,24 @@ public async Task Exception_translator_should_not_change_unhandled_exceptions()
 
         }
 
+        [Fact]
+        public async Task Exception_translator_should_throw_original_exception_if_delegate_is_false()
+        {
+            var clientWithRetry = HttpClientFactory.Create()
+                .WithMessageExceptionHandler(ex => false, ex => ex)
+                .WithPolicy(
+                    Policy<HttpResponseMessage>
+                        .Handle<HttpRequestException>()
+                        .OrResult(result => (int)result.StatusCode >= 500 || result.StatusCode == HttpStatusCode.RequestTimeout)
+                        .WaitAndRetryAsync(3, retryAttempt => TimeSpan.FromSeconds(1)))
+                .WithPolicy(Policy.TimeoutAsync<HttpResponseMessage>(TimeSpan.FromSeconds(4), TimeoutStrategy.Optimistic))
+                .Build();
+
+            await Assert.ThrowsAsync<HttpRequestException>(() => clientWithRetry.GetAsync(_server.Urls[0] + "/timeout"));
+            Assert.Equal(4, _server.LogEntries.Count());
+            
+        }
+
         [Fact]
         public async Task Exception_translator_without_errors_should_not_affect_anything()
         {