public void TestV1(string file1, string file2, bool match)
        {
            const string resPrefix = "BananoMonkeyMatchEmulator.samples.v1_june2018.";

            using (var stream1 = Assembly.GetExecutingAssembly().GetManifestResourceStream(resPrefix + file1))
            {
                using (var stream2 = Assembly.GetExecutingAssembly().GetManifestResourceStream(resPrefix + file2))
                {
                    using (var image1 = Image.FromStream(stream1))
                    {
                        using (var image2 = Image.FromStream(stream2))
                        {
                            var equal = ImageComparer.AreEqual(image1, image2, out var similarity);
                            Assert.Equal(match, equal);
                        }
                    }
                }
            }
        }
        public async Task <int> FindMatchAsync(string prefix, string expected, string[] candidates)
        {
            var url = prefix + expected;

            using (var img = Image.FromStream(await secondaryHttpClient.GetStreamAsync(prefix + expected)))
            {
                for (var i = 0; i < candidates.Length; i++)
                {
                    using (var cand = Image.FromStream(await secondaryHttpClient.GetStreamAsync(prefix + candidates[i])))
                    {
                        var match = ImageComparer.AreEqual(img, cand, out var similarity);
                        logger.LogDebug($"Compare {expected} with {candidates[i]}: {similarity}{(match ? " MATCH" : string.Empty)}");
                        if (match)
                        {
                            return(i);
                        }
                    }
                }
            }

            return(-1);
        }