add Rule.WhenPost

Author: atwayne

src/TestServer/Rule.cs

@@ -49,6 +49,18 @@ public Rule WhenGet()
             return this;
         }
 
+        /// <summary>
+        /// Add a rule that the HttpRequest.Method is POST
+        /// </summary>
+        public Rule WhenPost()
+        {
+            Predictions.Add((request) =>
+            {
+                return request.Method == "POST";
+            });
+            return this;
+        }
+
         /// <summary>
         /// Add a rule that the request url matches a regex expression
         /// </summary>

test/TestServer.Tests/TestServerTests.cs

@@ -83,6 +83,23 @@ public async Task WhenPredictGet_GetAsync_ShouldSucceed()
             AssertOkResponse(actual);
         }
 
+        [Test]
+        public async Task WhenPredictPost_PostAsync_ShouldSucceed()
+        {
+            // Arrange
+            _server.CurrentRuleSet
+                .AddRule()
+                .WhenPost()
+                .SetOkResponse(_okResponse);
+            var client = _server.CreateClient();
+
+            // Act
+            var actual = await client.PostAsync("/", new StringContent("dummy"));
+
+            // Assert
+            AssertOkResponse(actual);
+        }
+
         [Test]
         public async Task WhenPredictGet_PostAsync_ShouldFail()
         {