public void EnsureFileExtensionIsDotHtml()
{
//Act:
bool emptyResult = _fileExtensionChecker.IsHtmlFile(_emptyString);
bool htmlResult = _fileExtensionChecker.IsHtmlFile(_htmlFileName);
bool exeResult = _fileExtensionChecker.IsHtmlFile(_exeFileName);
bool wordResult = _fileExtensionChecker.IsHtmlFile(_wordFileName);
//Assert:
Assert.IsFalse(emptyResult);
Assert.IsTrue(htmlResult);
Assert.IsFalse(exeResult);
Assert.IsFalse(wordResult);
}
private void btnSelectFile_Click(object sender, RoutedEventArgs e)
{
OpenFileDialog openFileDialog = new OpenFileDialog();
if (openFileDialog.ShowDialog() == true)
{
if (_fileExtensionChecker.IsHtmlFile(openFileDialog.FileName))
{
txtSelectedFile.Text = openFileDialog.FileName;
_fileIsValid = true;
btnProcessFile.IsEnabled = true;
}
else
{
txtSelectedFile.Text = string.Empty;
txtFeedback.Text = _invalidFileMessage;
btnProcessFile.IsEnabled = false;
}
}
}