public void GivenAB_ReturnsPairWithKeyAB()
{
var preprocessor = new DefaultStationPreprocessor();
var result = preprocessor.GetStationBeginnings("ab");
Assert.That(result.SingleOrDefault(x => x.Key == "ab"), Is.Not.Null);
}
public void GivenAB_ReturnsPairWithKeyAMappedToAB()
{
var preprocessor = new DefaultStationPreprocessor();
var result = preprocessor.GetStationBeginnings("ab");
Assert.That(result.SingleOrDefault(x => x.Key == "a").Value, Is.EqualTo("ab"));
}
public void GivenA_Returns1KeyValuePair()
{
var preprocessor = new DefaultStationPreprocessor();
var result = preprocessor.GetStationBeginnings("a");
Assert.That(result.Count, Is.EqualTo(1));
}
public void GivenAB_Returns2Pairs()
{
var preprocessor = new DefaultStationPreprocessor();
var result = preprocessor.GetStationBeginnings("ab");
Assert.That(result.Count, Is.EqualTo(2));
}
public void GivenTokyo_Returns5Pairs()
{
var preprocessor = new DefaultStationPreprocessor();
Dictionary<string, List<string>> result = preprocessor.GetStationsLookups(new List<string> { "Tokyo" });
Assert.That(result.Count(), Is.EqualTo(5));
}
public void GivenTokyoAndTibet_ReturnsTWithTwoValues()
{
var preprocessor = new DefaultStationPreprocessor();
Dictionary<string, List<string>> result = preprocessor.GetStationsLookups(new List<string> { "Tokyo", "Tibet" });
Assert.That(result["t"].Count, Is.EqualTo(2) );
}
public void GivenNull_ThrowsArgNullException()
{
var preprocessor = new DefaultStationPreprocessor();
Assert.Throws<ArgumentNullException>(() => preprocessor.GetStationsLookups(null));
}
public void GivenWhitespace_ReturnsEmptyList()
{
var preprocessor = new DefaultStationPreprocessor();
var result = preprocessor.GetStationBeginnings(" \t \n ");
Assert.That(result, Is.Empty);
}
public void GivenListOf2StationsWith1Letter_ReturnsLastStationWithCorrectValue()
{
var preprocessor = new DefaultStationPreprocessor();
Dictionary<string, List<string>> result = preprocessor.GetStationsLookups(new List<string> { "a", "b" });
Assert.That(result.SingleOrDefault(x => x.Value.Contains("b")), Is.Not.Null);
}
public void GivenListOf2StationsWith1Letter_Returns2KeyValuePairs()
{
var preprocessor = new DefaultStationPreprocessor();
Dictionary<string, List<string>> result = preprocessor.GetStationsLookups(new List<string> { "a", "b" });
Assert.That(result.Count, Is.EqualTo(2));
}
public void GivenListOf1StationNameWith1Letter_ReturnsCorrectValue()
{
var preprocessor = new DefaultStationPreprocessor();
string expected = "a";
Dictionary<string, List<string>> result = preprocessor.GetStationsLookups(new List<string> { expected });
Assert.That(result.Single().Value.Single(), Is.EqualTo(expected));
}
public void GivenListOf1StationNameWith1Letter_ReturnsCorrectKey()
{
var preprocessor = new DefaultStationPreprocessor();
Dictionary<string, List<string>> result = preprocessor.GetStationsLookups(new List<string> { "a" });
Assert.That(result.Single().Key, Is.EqualTo("a"));
}
public void GivenEmptyList_ThrowsArgumentExceptionWithUsefulMessage()
{
var preprocessor = new DefaultStationPreprocessor();
ArgumentException exception = null;
try
{
preprocessor.GetStationsLookups(new List<string>());
}
catch (ArgumentException e)
{
exception = e;
}
Assert.That(exception.Message, Is.StringContaining("The list of stations was empty. We cannot possibly query an empty list of station names."));
}
public void GivenEmptyList_ThrowsArgumentException()
{
var preprocessor = new DefaultStationPreprocessor();
Assert.Throws<ArgumentException>(() => preprocessor.GetStationsLookups(new List<string>()));
}
public void GivenLowecaseA_ResultIsCaseInsensetive()
{
var preprocessor = new DefaultStationPreprocessor();
Dictionary<string, List<string>> result = preprocessor.GetStationsLookups(new List<string> { "a" });
Assert.That(result.ContainsKey("A"));
}
public void GivenA_ReturnsWithValueA()
{
var preprocessor = new DefaultStationPreprocessor();
var result = preprocessor.GetStationBeginnings("a");
Assert.That(result.Single().Value, Is.EqualTo("a"));
}
public void GivenEmptyString_ReturnsEmptyList()
{
var preprocessor = new DefaultStationPreprocessor();
var result = preprocessor.GetStationBeginnings(string.Empty);
Assert.That(result, Is.Empty);
}