public void TestGetValues()
        {
            var    requestHeaders = new CosmosRequestMessageHeaders();
            string value1         = Guid.NewGuid().ToString();

            requestHeaders.Add(Key, value1);
            IEnumerable <string> values = requestHeaders.GetValues(Key);

            Assert.AreEqual(1, values.Count());
        }
        public void TestAddAndGetAndSet()
        {
            string value1         = Guid.NewGuid().ToString();
            string value2         = Guid.NewGuid().ToString();
            var    requestHeaders = new CosmosRequestMessageHeaders();

            requestHeaders.Add(Key, value1);
            Assert.AreEqual(value1, requestHeaders.Get(Key));
            requestHeaders.Set(Key, value2);
            Assert.AreEqual(value2, requestHeaders.Get(Key));
        }