Why does UsingMethod check _callscount?

[robvangeloven]

When making this call:

                ._wireMockFixture
                .Server
                .Should()
                .HaveReceived(1)
                .Calls()
                .AtUrl(mockUrl)
                .And
                .UsingPost();

My expectation is that this will work, but I get the error:
Expected _wireMockFixture.Server to have been called using method "POST", but didn't find it among the methods {"GET", "POST", "POST"}.

However, I'm trying to check that there was a singular call that matches the specifics of the assert. And there is, but the UsingPost also checks the _callsCount for number of "POST" used.

[StefH]

@robvangeloven
Can you provide a failing unit-test ?

Because I cannot reproduce it in existing unit tests.

And also not in new unit tests (#816)

[robvangeloven]

@StefH Sure!

using System.Net;

using FluentAssertions;

using WireMock.FluentAssertions;
using WireMock.RequestBuilders;
using WireMock.ResponseBuilders;
using WireMock.Server;

var server = WireMockServer.Start();

server
    .Given(Request.Create().WithPath("/a").UsingGet())
    .RespondWith(Response.Create().WithBodyAsJson("A response").WithStatusCode(HttpStatusCode.OK));

server
    .Given(Request.Create().WithPath("/b").UsingPost())
    .RespondWith(Response.Create().WithBodyAsJson("B response").WithStatusCode(HttpStatusCode.OK));

server
    .Given(Request.Create().WithPath("/c").UsingPost())
    .RespondWith(Response.Create().WithBodyAsJson("C response").WithStatusCode(HttpStatusCode.OK));


var httpClient = new HttpClient();

await httpClient.GetAsync($"{server.Url}/a");

await httpClient.PostAsync($"{server.Url}/b", new StringContent("B"));

await httpClient.PostAsync($"{server.Url}/c", new StringContent("C"));

server
    .Should()
    .HaveReceived(1)
    .Calls()
    .AtUrl($"{server.Url}/c")
    .And
    .UsingPost();

server.Stop();

[StefH]

#816