Tests.WorkTests.WorkWithLargeFileTest C# (CSharp) Метод

        public void WorkWithLargeFileTest()
        {
            var testfileRaw = Path.Combine(TestContext.CurrentContext.TestDirectory, "Testfiles", "largefile.dat");
            var testfileDecryptedFile = Path.Combine(TestContext.CurrentContext.TestDirectory, "Testfiles", "decrypted", "largefile.dat");
            var testfileDecryptedOutputDirectory = Path.Combine(TestContext.CurrentContext.TestDirectory, "Testfiles", "decrypted");
            const string outputDirectory = "Testfiles";
            const long testfileSizeGb = 1;
            const string privateKey = "31d9040b00a170532929b37db0afcb989e4175f96e5f9667ee8cbf5706679a71";
            const string publicKey = "6d0deec730700f9f60687a4e6e8755157ca22ea2f3815b9bf14b1fe9ae6a0b4d";
            var keyPair = new KeyPair(Utilities.HexToBinary(publicKey), Utilities.HexToBinary(privateKey));
            Console.Write("Generating {0} GB testfile . . .\n", testfileSizeGb);
            var testTimer = new Stopwatch();
            //generating
            testTimer.Start();
            var fs = new FileStream(testfileRaw, FileMode.CreateNew);
            fs.Seek((testfileSizeGb*1024)*1024*1024, SeekOrigin.Begin);
            fs.WriteByte(0);
            fs.Close();
            testTimer.Stop();
            var elapsedSeconds = testTimer.Elapsed.Seconds;
            Console.Write("Time to generate testfile: {0} s\n", elapsedSeconds);
            testTimer.Reset();
            //encrypting
            testTimer.Start();
            Console.Write("Encrypting testfile . . .\n");
            var encryptedFile = Cryptor.EncryptFileWithStream(keyPair, testfileRaw);
            testTimer.Stop();
            elapsedSeconds = testTimer.Elapsed.Seconds;
            Console.Write("Time to encrypt testfile: {0} s\n", elapsedSeconds);
            testTimer.Reset();
            //decrypting
            testTimer.Start();
            Console.Write("Decrypting testfile . . .\n");
            Cryptor.DecryptFileWithStream(keyPair, Path.Combine(TestContext.CurrentContext.TestDirectory, outputDirectory, encryptedFile),
                testfileDecryptedOutputDirectory);
            testTimer.Stop();
            elapsedSeconds = testTimer.Elapsed.Seconds;
            Console.Write("Time to decrypt testfile: {0} s\n", elapsedSeconds);
            testTimer.Reset();
            //checksum
            testTimer.Start();
            Console.Write("Get checksum of testfiles . . .\n");
            Assert.AreEqual(Utils.GetChecksum(testfileRaw), Utils.GetChecksum(testfileDecryptedFile));
            testTimer.Stop();
            elapsedSeconds = testTimer.Elapsed.Seconds;
            Console.Write("Time to generate testfile checksums: {0} s\n", elapsedSeconds);
            testTimer.Reset();
            //clear garbage 
            File.Delete(testfileRaw);
            File.Delete(Path.Combine(TestContext.CurrentContext.TestDirectory, outputDirectory, encryptedFile));
            File.Delete(testfileDecryptedFile);
        }
    }