public static void Main(string[] args)
{
var filter = new NegativeWordFilter(new NegativeWordSettingsProvider());
do
{
Console.WriteLine("Press");
Console.WriteLine("1 to Get Content");
Console.WriteLine("2 to Disable Filtering");
Console.WriteLine("3 to Enable Filtering");
Console.WriteLine("ANY other key to exit.");
var keyPressed = Console.ReadKey().KeyChar;
switch (keyPressed)
{
case '1':
DisplayContent(filter); break;
case '2':
DisableFiltering(filter); break;
case '3':
EnableFiltering(filter); break;
default:
return;
}
Console.WriteLine("");
Console.WriteLine("");
} while (true);
}
private static void DisplayContent(NegativeWordFilter filter)
{
string content =
"The weather in Manchester in winter is bad. It rains all the time - it must be horrible for people visiting.";
Console.WriteLine("");
Console.WriteLine("Scanned the text:");
Console.WriteLine(filter.Filter(content));
Console.WriteLine("Total Number of negative words: " + filter.Count(content));
}
public void TurnOffFilter_Invokes_TurnOffFilter_On_NegativeWordSettingsProvider()
{
var negativeWordSettingsProvider = Mock.Of <INegativeWordSettingsProvider>();
var sut = new NegativeWordFilter(negativeWordSettingsProvider);
sut.TurnOffFilter();
Mock.Get(negativeWordSettingsProvider)
.Verify(x => x.TurnOffFilter(), Times.Once);
}
public void Count_WhenThereAreNoNegativeWords_Returns_Zero(string phrase)
{
var negativeWordSettingsProvider = Mock.Of <INegativeWordSettingsProvider>();
Mock.Get(negativeWordSettingsProvider)
.Setup(x => x.GetAllWords())
.Returns(new List <string>());
var sut = new NegativeWordFilter(negativeWordSettingsProvider);
var actualCount = sut.Count(phrase);
Assert.AreEqual(0, actualCount);
}
public void Count_WhenInvokedWithEmptyOrNullPhrase_Returns_Zero(string phrase, params string[] negativeWords)
{
var negativeWordSettingsProvider = Mock.Of <INegativeWordSettingsProvider>();
Mock.Get(negativeWordSettingsProvider)
.Setup(x => x.GetAllWords())
.Returns(negativeWords.ToList());
var sut = new NegativeWordFilter(negativeWordSettingsProvider);
var actualCount = sut.Count(phrase);
Assert.AreEqual(0, actualCount);
}
public void Count_WhenInvokedWithNonEmptyPhrase_Returns_NegativeWordsCount_CaseInsensitive(string phrase, int expectedCount, params string[] negativeWords)
{
var negativeWordSettingsProvider = Mock.Of <INegativeWordSettingsProvider>();
Mock.Get(negativeWordSettingsProvider)
.Setup(x => x.GetAllWords())
.Returns(negativeWords.ToList());
var sut = new NegativeWordFilter(negativeWordSettingsProvider);
var actualCount = sut.Count(phrase);
Assert.AreEqual(expectedCount, actualCount);
}
public void Filter_WhenFilteringIsOff_Returns_TheSame(string phrase, params string[] negativeWords)
{
var negativeWordSettingsProvider = Mock.Of <INegativeWordSettingsProvider>();
Mock.Get(negativeWordSettingsProvider)
.Setup(x => x.GetAllWords())
.Returns(negativeWords.ToList());
Mock.Get(negativeWordSettingsProvider)
.Setup(x => x.IsFilteringOn())
.Returns(false);
var sut = new NegativeWordFilter(negativeWordSettingsProvider);
var actual = sut.Filter(phrase);
Assert.AreEqual(phrase, actual);
}
public void Filter_WhenThereAreNoNegativeWords_Returns_TheSame(string phrase)
{
var negativeWordSettingsProvider = Mock.Of <INegativeWordSettingsProvider>();
Mock.Get(negativeWordSettingsProvider)
.Setup(x => x.GetAllWords())
.Returns(new List <string>());
Mock.Get(negativeWordSettingsProvider)
.Setup(x => x.IsFilteringOn())
.Returns(true);
var sut = new NegativeWordFilter(negativeWordSettingsProvider);
var actual = sut.Filter(phrase);
Assert.AreEqual(phrase, actual);
}
public void Filter_WhenFilteringIsOn_And_InvokedWithNonEmptyPhrase_Returns_FilteredPhrase(string phrase, string expected, params string[] negativeWords)
{
var negativeWordSettingsProvider = Mock.Of <INegativeWordSettingsProvider>();
Mock.Get(negativeWordSettingsProvider)
.Setup(x => x.GetAllWords())
.Returns(negativeWords.ToList());
Mock.Get(negativeWordSettingsProvider)
.Setup(x => x.IsFilteringOn())
.Returns(true);
var sut = new NegativeWordFilter(negativeWordSettingsProvider);
var actual = sut.Filter(phrase);
Assert.AreEqual(expected, actual);
}
private static void DisableFiltering(NegativeWordFilter filter)
{
filter.TurnOffFilter();
Console.WriteLine("");
Console.WriteLine("Filtering Disabled");
}
