public void GivenFileName_WhenDoesntExist_ReturnsEmpty()
{
// arrange
var wordCounter = new WordReporter(new FileWrapper());
// act
// assert
Assert.Throws <FileNotFoundException>(() => wordCounter.GetWordCounts("badfile.txt"));
}
public void GivenFileName_WhenFileExistsOnDisk_ReturnsReport()
{
// arrange
var wordReporter = new WordReporter(new FileWrapper());
// act
var result = wordReporter.GetWordCounts("woodchuck.txt");
// assert
var expected = "a 2\nchuck 4\ncould 1\nhow 1\nif 1\nmuch 1\nwood 4\nwould 1";
Assert.That(result, Is.EqualTo(expected));
}
public void GivenFileNameToFilter_WhenHasContent_ReturnsFilteredList(string content, string expected)
{
// arrange
var fileMock = A.Fake <IFileWrapper>();
A.CallTo(() => fileMock.ReadAllText(A <string> ._)).Returns(content);
var wordReporter = new WordReporter(fileMock);
// act
var result = wordReporter.GetFilteredWords("goodfile.txt");
// assert
Assert.That(result, Is.EqualTo(expected));
}
