public void BuildFileShareSafeStreamWriter_InvalidDir_ThrowsArgumentException()
{
string testFile = Path.Combine(Directory.GetCurrentDirectory(), "UnitTesting", "TESTFILE.txt");
Directory.CreateDirectory(Path.GetDirectoryName(testFile));
Directory.Delete(Path.GetDirectoryName(testFile), true);
Assert.Throws <ArgumentException>(() => IoHelper.BuildFileShareSafeStreamWriter(testFile));
}
public void BuildFileShareSafeStreamWriter_InvalidFileName_ThrowsArgumentException()
{
string testFile = Path.Combine(Directory.GetCurrentDirectory(), "UnitTesting\\");
Directory.CreateDirectory(Path.GetDirectoryName(testFile));
testFile += new string(Path.GetInvalidFileNameChars().Take(6).ToArray());
Assert.Throws <ArgumentException>(() => IoHelper.BuildFileShareSafeStreamWriter(testFile));
}
public void BuildFileShareSafeStreamWriter_ValidFile_CannotOpenSecondStreamForReads()
{
string testFile = Path.Combine(Directory.GetCurrentDirectory(), "UnitTesting", "TESTFILE.txt");
Directory.CreateDirectory(Path.GetDirectoryName(testFile));
using (StreamWriter sw = IoHelper.BuildFileShareSafeStreamWriter(testFile))
{
Assert.Throws <IOException>(() => File.OpenRead(testFile));
}
}