/*
* Starts the test set with the given information.
* If the files are read successfully, starts the test.
* Otherwise, displays an error dialog.
*/
private void startTestSet(Info.CategoryInfo categoryInfo, Info.TestSetInfo testSetInfo, int numRounds, int numQuestionsPerRound)
{
// Read the test set
TestSet testSet = TestFileReader.readTestSet(categoryInfo, testSetInfo);
// If the test set files were read successfully
if (testSet != null)
{
// Remove the bad questions
testSet.removeIncompleteOrInvalidQuestions();
// Randomize the questions
testSet.randomizeQuestions();
// Calculate the total number of questions
int numQuestions = numRounds * numQuestionsPerRound;
// If there are enough questions in the test set
if (numQuestions <= testSet.numQuestionsAvailable())
{
// Set the number of rounds and questions
testSet.numRounds = numRounds;
testSet.numQuestionsPerRound = numQuestionsPerRound;
// Go to the test start page
contentWindow.Content = new TestStartPage(contentWindow, testSet);
}
// If there are not enough questions in the test set
else
{
MessageBox.Show(
"Only " + testSet.numQuestionsAvailable() + " questions are available for \"" + testSetInfo.testSetStringLong + "\"." +
" You have selected " + numQuestions + " questions.",
"Not Enough Questions Available",
MessageBoxButton.OK,
MessageBoxImage.Warning
);
updatePage();
setDefaults(categoryInfo, testSetInfo);
}
}
// If the test set files were not read
else
{
MessageBox.Show(
"The test files for \"" + testSetInfo.testSetStringLong + "\" could not be found." +
"\n\nMake sure that the test files are located in the Tests folder." +
" If this error persists, redownload the application.",
"Test Files Not Found",
MessageBoxButton.OK,
MessageBoxImage.Error
);
updatePage();
setDefaults(categoryInfo);
}
}
/*
* Returns false if any of the question data is incomplete or invalid.
* (Does not check the user answer.)
*/
public bool isQuestionDataCompleteAndValid()
{
// Text
if (TestFileReader.IsNullOrWhiteSpace(text))
{
return(false);
}
if (text.Contains('\"'))
{
return(false);
}
// Answer options - keys
foreach (char answerOption in "abcd")
{
if (answerOptions.ContainsKey(answerOption) == false)
{
return(false);
}
}
// Answer options - values
foreach (String answerOption in answerOptions.Values)
{
if (TestFileReader.IsNullOrWhiteSpace(answerOption))
{
return(false);
}
if (answerOption.Contains('\"'))
{
return(false);
}
}
// Correct answer
if (answerOptions.Keys.Contains(correctAnswer) == false)
{
return(false);
}
// Correct answer explanation
if (TestFileReader.IsNullOrWhiteSpace(correctAnswerExplanation))
{
return(false);
}
if (correctAnswerExplanation.Contains('\"'))
{
return(false);
}
return(true);
}