public void TestGetRangeOfWordsWithValidRange()
{
InputFileReader reader = InputFileReader.GetReader(TestFileNameContents.Example2FileName);
//Have to read before we can get the range of words
reader.ReadUntilNextKeyword("the", "man");
Assert.AreEqual(2, reader.GetRangeOfWords(2).Length);
Assert.AreEqual("the", reader.GetRangeOfWords(2)[0]);
Assert.AreEqual("man", reader.GetRangeOfWords(2)[1]);
}
public void TestGetRangeOfWordsWithoutReading()
{
InputFileReader reader = InputFileReader.GetReader(TestFileNameContents.Example2FileName);
try
{
reader.GetRangeOfWords(2);
}
catch (InvalidOperationException e)
{
Assert.AreEqual(ErrorMessageConstants.InputFileReaderGetRangeWithoutReadingErrorMessage, e.Message);
}
}
/// <summary>
/// Main search method, initializes the reader and loops from keyword to keyword
/// in the InputFile while keeping track of the proximityCount
/// </summary>
public int Search()
{
reader = InputFileReader.GetReader(this.file);
//Get the first keyword in the file
string currentWord = reader.ReadUntilNextKeyword(keywordOne, keywordTwo);
int proximityCount = 0;
do
{
//Calculate the proximity of the range of words from the current position
proximityCount += CalculateProximity(reader.GetRangeOfWords(range));
//Get the next keyword in the file
currentWord = reader.ReadUntilNextKeyword(keywordOne, keywordTwo);
}while (!string.IsNullOrEmpty(currentWord)); //ReadUntilNextKeyword returns an empty string, we have reached the end of the file and can stop looping
return(proximityCount);
}
