public void GetSingleAnalyzedCharacter_CorrectFrequency(char character, string sourceText,
decimal expectedFrequency, int decimalPlaceDelta)
{
var frequencyAnalyser = new CharFrequencyAnalyzer();
var actual = frequencyAnalyser.GetSingleAnalyzedCharacter(character, sourceText);
Assert.AreEqual(expectedFrequency, decimal.Round(actual.Frequency, decimalPlaceDelta));
}
public void GetAllAnalyzedCharacters_OccurenceCount_IsEqualToSourceTextLength(string sourceText)
{
var frequencyAnalyser = new CharFrequencyAnalyzer();
var analyzedCharacters = frequencyAnalyser.GetAllAnalyzedCharacters(sourceText);
var totalOccurenceCount = analyzedCharacters.Sum(analyzedCharacter => analyzedCharacter.OccurenceCount);
Assert.AreEqual(sourceText.Length, totalOccurenceCount);
}
public void GetSingleAnalyzedCharacter_NoContent_ThrowsArgumentOutOfRange(char character,
string sourceText)
{
var frequencyAnalyser = new CharFrequencyAnalyzer();
Assert.Throws <ArgumentOutOfRangeException>(() =>
{
frequencyAnalyser.GetSingleAnalyzedCharacter(character, sourceText);
});
}
public void GetSingleAnalyzedCharacter_HasContent_IsEqualToExpectedLength(char character,
string sourceText, int expectedCount)
{
var frequencyAnalyser = new CharFrequencyAnalyzer();
var analyzedCharacter = frequencyAnalyser.GetSingleAnalyzedCharacter(character, sourceText);
if (analyzedCharacter.OccurenceCount < 0)
{
Assert.Fail("Negative character occurence count");
}
Assert.AreEqual(expectedCount, analyzedCharacter.OccurenceCount);
}
public void GGetAllAnalyzedCharacters_FindsAllUniqueCharacters(string sourceText, char[] uniqueCharacters)
{
var frequencyAnalyser = new CharFrequencyAnalyzer();
var analyzedCharacters = frequencyAnalyser.GetAllAnalyzedCharacters(sourceText).ToArray();
Assert.AreEqual(uniqueCharacters.Length, analyzedCharacters.Count());
foreach (var uniqueCharacter in uniqueCharacters)
{
if (!analyzedCharacters.Any(ac => ac.Character.Equals(uniqueCharacter)))
{
Assert.Fail($"Character: '{uniqueCharacter}' was not found in the output set.");
}
}
Assert.Pass();
}
public void GetMultipleAnalyzedCharacters_HasContent_AllCharactersPresent(char[] characters,
string sourceText)
{
var frequencyAnalyser = new CharFrequencyAnalyzer();
var analyzedCharacters = frequencyAnalyser.GetMultipleAnalyzedCharacters(characters, sourceText).ToArray();
Assert.AreEqual(characters.Length, analyzedCharacters.Length);
foreach (var character in characters)
{
if (!analyzedCharacters.Any(ac => ac.Character.Equals(character)))
{
Assert.Fail($"Character '{character}' was not found in the analyzed set.");
}
}
Assert.Pass();
}
public void GetAllAnalyzedCharacters_EmptyInput_ThrowsArgumentNullException()
{
var frequencyAnalyzer = new CharFrequencyAnalyzer();
Assert.Throws <ArgumentNullException>(() => { frequencyAnalyzer.GetAllAnalyzedCharacters(string.Empty); });
}
