System.IO.Tests.BinaryWriterWithBufferedStream_Tests.BinaryWriter_FlushTests C# (CSharp) Méthode

        public override void BinaryWriter_FlushTests()
        {
            // [] Check that flush updates the underlying stream
            using (Stream memstr2 = CreateStream())
            using (BinaryWriter bw2 = new BinaryWriter(memstr2))
            {
                string str = "HelloWorld";
                int expectedLength = str.Length + 1; // 1 for 7-bit encoded length
                bw2.Write(str);
                Assert.Equal(expectedLength, memstr2.Length);
                bw2.Flush();
                Assert.Equal(expectedLength, memstr2.Length);
            }

            // [] Flushing a closed writer may throw an exception depending on the underlying stream
            using (Stream memstr2 = CreateStream())
            {
                BinaryWriter bw2 = new BinaryWriter(memstr2);
                bw2.Dispose();
                Assert.Throws<ObjectDisposedException>(() => bw2.Flush());
            }
        }
    }