public void WordCounter_ShouldReturnCorrectCount_WhenPassedSentencesWithFullStops()
{
//Regression test to address issue with full stops.
//Arrange
var wordCounter = new WordCounterWithoutRegex();
var input = new[]
{
"hello world!",
"hello world.",
"Let's test."
};
var expectedOutput = new Dictionary <string, int>
{
{ "hello", 2 },
{ "world", 2 },
{ "lets", 1 },
{ "test", 1 }
};
//Act
var actualOutput = wordCounter.Count(input);
//Assert
CollectionAssert.AreEquivalent(expectedOutput, actualOutput);
}
public void WordCounter_ShouldIgnorePunctuationAndNumbers_WhenTextInOtherLanguages()
{
//Arrange
var wordCounter = new WordCounterWithoutRegex();
var input = new[] { "«здравствулте мир»", "「你好世界」。" }; //'Hello World' in Chinese and Russian, with native punctuation
var expectedOutput = new Dictionary <string, int>
{
{ "здравствулте", 1 },
{ "мир", 1 },
{ "你好世界", 1 }
};
//Act
var actualOutput = wordCounter.Count(input);
//One does not simply compare two unicode strings. They need to be escaped.
//More information: http://stackoverflow.com/questions/9461971/nunit-how-to-compare-strings-containing-composite-unicode-characters
var actualChineseHelloWorld = Uri.UnescapeDataString(actualOutput.Keys.Last());
var actualRussianHelloWorld = Uri.UnescapeDataString(actualOutput.Keys.First());
var expectedChineseHelloWorld = Uri.UnescapeDataString(expectedOutput.Keys.Last());
var expectedRussianHelloWorld = Uri.UnescapeDataString(expectedOutput.Keys.First());
//Assert
Assert.AreEqual(expectedChineseHelloWorld, actualChineseHelloWorld);
Assert.AreEqual(expectedRussianHelloWorld, actualRussianHelloWorld);
}
public void CountWords_ShouldReturnDictionaryOfCorrectNumbers_WhenPassedStringArray()
{
//Arrange
var wordCounter = new WordCounterWithoutRegex();
var input = new[] { "hello world world", "hello world world" };
var expectedOutput = new Dictionary <string, int>
{
{ "hello", 2 },
{ "world", 4 }
};
//Act
var actualOutput = wordCounter.Count(input);
//Arrange
CollectionAssert.AreEquivalent(expectedOutput, actualOutput);
}
public void CountWords_ShouldIgnorePunctuationAndNumbers_WhenPassedEnglishText()
{
//Arrange
var wordCounter = new WordCounterWithoutRegex();
var input = new[] { "Hello worlD & World 1", "hello WORLD, world 1" };
var expectedOutput = new Dictionary <string, int>
{
{ "hello", 2 },
{ "world", 4 }
};
//Act
var actualOutput = wordCounter.Count(input);
//Arrange
CollectionAssert.AreEquivalent(expectedOutput, actualOutput);
}