public void RemoveCustomHeader_RemoveCustomHeader_ReturnsTrue()
        {
            SimpleHttpClient.SimpleClientConfig model = Mockup.GetMockupConfigWithCustomHeader();
            var result = model.RemoveCustomHeader(Mockup.MockCustomHeaderKey);

            Assert.IsTrue(result);
        }
        public void RemoveCustomHeader_RemoveNonExistantCustomHeader_ReturnsFalse()
        {
            SimpleHttpClient.SimpleClientConfig model = Mockup.GetMockupConfigWithCustomHeader();
            var result = model.RemoveCustomHeader("ThisKeyDoesNotExist");

            Assert.IsFalse(result);
        }
        public void AddCustomHeader_AddAlreadyExistingCustomHeader_ReturnsFalse()
        {
            SimpleHttpClient.SimpleClientConfig model = Mockup.GetMockupConfigWithCustomHeader();
            var result = model.AddCustomHeader(Mockup.MockCustomHeaderKey, "value");

            Assert.IsFalse(result);
        }