ZeroInstall.Publish.FeedUtilsTest.TestSignFeed C# (CSharp) Method

        public void TestSignFeed()
        {
            using (var stream = new MemoryStream())
            {
                var feed = FeedTest.CreateTestFeed();
                const string passphrase = "passphrase123";
                var signature = new byte[] {1, 2, 3};
                var secretKey = new OpenPgpSecretKey(keyID: 123, fingerprint: new byte[] {1, 2, 3}, userID: "user");

                var openPgpMock = CreateMock<IOpenPgp>();
                openPgpMock.Setup(x => x.Sign(It.IsAny<byte[]>(), secretKey, passphrase))
                    .Returns(signature);
                feed.SaveXml(stream);
                FeedUtils.SignFeed(stream, secretKey, passphrase, openPgpMock.Object);

                string signedFeed = stream.ReadToString();
                string expectedFeed = feed.ToXmlString() + Store.Feeds.FeedUtils.SignatureBlockStart +
                                      Convert.ToBase64String(signature) + "\n" + Store.Feeds.FeedUtils.SignatureBlockEnd;
                signedFeed.Should().Be(expectedFeed, because: "Feed should remain unchanged except for appended XML signatre");
            }
        }
    }