public void TestGetWordsInRangeWithValidRange()
{
int testRange = 2;
int testStartIndex = 0;
InputFile file = InputFile.GetInputFile(TestFileNameContents.Example2FileName);
string[] words = file.GetWordsInRange(testStartIndex, testRange);
Assert.AreEqual(testRange, words.Length);
Assert.AreEqual("the", words[0]);
Assert.AreEqual("man", words[1]);
}
public void TestGetWordsInRangeWithValidRangeThatExtendsPastEndOfTestFile()
{
int testRange = 6;
int testStartIndex = 19;
InputFile file = InputFile.GetInputFile(TestFileNameContents.Example2FileName);
string[] words = file.GetWordsInRange(testStartIndex, testRange);
Assert.AreEqual(2, words.Length);
Assert.AreEqual("canal", words[0]);
Assert.AreEqual("panama", words[1]);
}
public void TestGetWordsInRangeWithZeroRange()
{
int testRange = 0;
int testStartIndex = 0;
InputFile file = InputFile.GetInputFile(TestFileNameContents.Example2FileName);
try
{
file.GetWordsInRange(testStartIndex, testRange);
}
catch (ArgumentException e)
{
Assert.AreEqual(ErrorMessageConstants.InvalidInputFileIndexErrorMessage, e.Message);
}
}
public void TestGetWordsInRangeWithStartIndexGreaterThanNumberOfWordsInInputFile()
{
int testRange = 2;
int testStartIndexInvalid = 5000;
InputFile file = InputFile.GetInputFile(TestFileNameContents.Example2FileName);
try
{
file.GetWordsInRange(testStartIndexInvalid, testRange);
}
catch (ArgumentException e)
{
Assert.AreEqual(ErrorMessageConstants.InvalidInputFileIndexErrorMessage, e.Message);
}
}
