handling template parse failure

src/Stubbery/RequestMatching/RouteMatcher.cs

@@ -28,7 +28,12 @@ public RouteValueDictionary Match(string routeTemplate, string requestPath, IQue
                 }
             }
 
-            var template = TemplateParser.Parse(routeTemplate);
+            var (isSuccess, template) = TryParseTemplate(routeTemplate);
+
+            if (!isSuccess)
+            {
+                return null;
+            }
 
             var matcher = new TemplateMatcher(template, GetDefaults(template));
 
@@ -37,6 +42,18 @@ public RouteValueDictionary Match(string routeTemplate, string requestPath, IQue
             return matcher.TryMatch(requestPath, values) ? values : null;
         }
 
+        private static (bool IsSuccess, RouteTemplate Template) TryParseTemplate(string routeTemplate)
+        {
+            try
+            {
+                return (true, TemplateParser.Parse(routeTemplate));
+            }
+            catch
+            {
+                return (false, null);
+            }
+        }
+
         private RouteValueDictionary GetDefaults(RouteTemplate parsedTemplate)
         {
             var result = new RouteValueDictionary();

test/Stubbery.IntegrationTests/MultipleSetupsTest.cs

@@ -49,5 +49,28 @@ public async Task MultipleSetups_AllMatch_TheFirstOneReturned()
 
             Assert.Equal("testresponse1", resultString);
         }
+
+        [Fact]
+        public async Task MultipleSetups_OneHasWrongRoute_OthersStillMatch()
+        {
+            using var sut = new ApiStub();
+
+            sut.Get("/testget/one", (req, args) => "testresponse1");
+            sut.Get("/testget//two", (req, args) => "doesn't match");
+            sut.Get("/testget/three", (req, args) => "testresponse3");
+
+            sut.Start();
+
+            var result3 = await httpClient.GetAsync(new UriBuilder(new Uri(sut.Address))
+            {
+                Path = "/testget/three"
+            }.Uri);
+
+            Assert.Equal(HttpStatusCode.OK, result3.StatusCode);
+
+            var resultString = await result3.Content.ReadAsStringAsync();
+
+            Assert.Equal("testresponse3", resultString);
+        }
     }
 }