Fix unit tests (#54)

- Switch to httpbin to match other tests
- Manually install .NET Core 3.1 in GitHub Runner for CI

Author: Greybird

.github/workflows/ci.yml

@@ -106,8 +106,9 @@ jobs:
       - name: Install .NET SDK
         uses: actions/setup-dotnet@v3
         with:
-          # .NET 5 is deprecated and removed from GitHub Actions, we need to manually install it
+          # .NET Core 3.1 and .NET 5 are deprecated and removed from GitHub Actions, we need to manually install them
           dotnet-version: |
+            3.1.x
             5.x.x
             7.x.x
 

EasyVCR.Tests/ClientTest.cs

@@ -379,7 +379,7 @@ public async Task TestIgnoreElementsFailMatch()
 
             // record baseline request first
             var client = HttpClients.NewHttpClient(cassette, Mode.Record);
-            var _ = await client.PostAsync(FakeDataService.GetPreparedIPAddressDataUrl("json"), bodyData1);
+            var _ = await client.PostAsync(FakeDataService.GetPostManPostEchoServiceUrl(), bodyData1);
 
             // try to replay the request with different body data
             client = HttpClients.NewHttpClient(cassette, Mode.Replay, new AdvancedSettings
@@ -388,7 +388,7 @@ public async Task TestIgnoreElementsFailMatch()
             });
 
             // should fail since we're strictly in replay mode and there's no exact match
-            await Assert.ThrowsExceptionAsync<VCRException>(async () => await client.PostAsync(FakeDataService.GetPreparedIPAddressDataUrl("json"), bodyData2));
+            await Assert.ThrowsExceptionAsync<VCRException>(async () => await client.PostAsync(FakeDataService.GetPostManPostEchoServiceUrl(), bodyData2));
         }
 
         [TestMethod]
@@ -402,7 +402,7 @@ public async Task TestCustomMatchRule()
 
             // record baseline request first
             var client = HttpClients.NewHttpClient(cassette, Mode.Record);
-            var _ = await client.PostAsync(FakeDataService.GetPreparedIPAddressDataUrl("json"), bodyData1);
+            var _ = await client.PostAsync(FakeDataService.GetPostManPostEchoServiceUrl(), bodyData1);
 
             // try to replay the request with no custom match rule
             client = HttpClients.NewHttpClient(cassette, Mode.Replay, new AdvancedSettings()
@@ -411,7 +411,7 @@ public async Task TestCustomMatchRule()
             });
 
             // should pass since it passes the default match rules
-            await client.PostAsync(FakeDataService.GetPreparedIPAddressDataUrl("json"), bodyData1);
+            await client.PostAsync(FakeDataService.GetPostManPostEchoServiceUrl(), bodyData1);
 
             // try to replay the request with a custom match rule
             client = HttpClients.NewHttpClient(cassette, Mode.Replay, new AdvancedSettings
@@ -420,7 +420,7 @@ public async Task TestCustomMatchRule()
             });
 
             // should fail since the custom match rule always returns false and there's never a match
-            await Assert.ThrowsExceptionAsync<VCRException>(async () => await client.PostAsync(FakeDataService.GetPreparedIPAddressDataUrl("json"), bodyData2));
+            await Assert.ThrowsExceptionAsync<VCRException>(async () => await client.PostAsync(FakeDataService.GetPostManPostEchoServiceUrl(), bodyData2));
         }
 
         [TestMethod]
@@ -434,7 +434,7 @@ public async Task TestIgnoreElementsPassMatch()
 
             // record baseline request first
             var client = HttpClients.NewHttpClient(cassette, Mode.Record);
-            var _ = await client.PostAsync(FakeDataService.GetPreparedIPAddressDataUrl("json"), bodyData1);
+            var _ = await client.PostAsync(FakeDataService.GetPostManPostEchoServiceUrl(), bodyData1);
 
             // try to replay the request with different body data, but ignoring the differences
             var ignoreElements = new List<CensorElement>
@@ -447,7 +447,7 @@ public async Task TestIgnoreElementsPassMatch()
             });
 
             // should succeed since we're ignoring the differences
-            var response = await client.PostAsync(FakeDataService.GetPreparedIPAddressDataUrl("json"), bodyData2);
+            var response = await client.PostAsync(FakeDataService.GetPostManPostEchoServiceUrl(), bodyData2);
             Assert.IsNotNull(response);
             Assert.IsTrue(Utilities.ResponseCameFromRecording(response));
         }

EasyVCR.Tests/FakeDataService.cs

@@ -58,16 +58,21 @@ public async Task<HttpResponseMessage> GetIPAddressDataRawResponse()
             return await Client.GetAsync(GetPreparedIPAddressDataUrl(_format));
         }
 
-        protected abstract IPAddressData Convert(string responseBody);
-
         public static string GetPreparedIPAddressDataUrl(string? format)
         {
             return $"{GetIPAddressDataUrl()}?format={format}";
         }
 
+        protected abstract IPAddressData Convert(string responseBody);
+
         public static string GetIPAddressDataUrl()
         {
             return "https://api.ipify.org/";
         }
+
+        public static string GetPostManPostEchoServiceUrl()
+        {
+            return "http://httpbin.org/post";
+        }
     }
 }