public void Should_return_null_if_SearchPattern_is_empty()
{
var todoPattern = new TodoPattern
{
SearchPattern = string.Empty
};
var regex = todoPattern.PatternRegex;
regex.Should().BeNull();
}
public void Should_return_the_same_regex_reference_when_reading_twice()
{
var searchPattern = @"Valid_SearchPattern\d+";
var todoPattern = new TodoPattern
{
SearchPattern = searchPattern
};
var firstRead = todoPattern.PatternRegex;
var secondRead = todoPattern.PatternRegex;
firstRead.Should().BeSameAs(secondRead);
}
public void Should_return_the_regex_of_a_valid_SearchPattern()
{
var searchPattern = @"Valid_SearchPattern\d+";
var todoPattern = new TodoPattern
{
SearchPattern = searchPattern
};
var regex = todoPattern.PatternRegex;
regex.Should().NotBeNull();
regex.ToString().Should().Be(searchPattern);
}
public void Should_return_the_updated_regex_when_changing_the_SearchPattern()
{
var todoPattern = new TodoPattern();
var originalSearchPattern = @"Original_SearchPattern\d+";
todoPattern.SearchPattern = originalSearchPattern;
var originalRegex = todoPattern.PatternRegex;
// change the search pattern
var newSearchPattern = @"Changed_SearchPattern\d+";
todoPattern.SearchPattern = newSearchPattern;
var newRegex = todoPattern.PatternRegex;
originalRegex.Should().NotBeNull();
originalRegex.ToString().Should().Be(originalSearchPattern);
newRegex.Should().NotBeNull();
newRegex.ToString().Should().Be(newSearchPattern);
originalRegex.Should().NotBeSameAs(newRegex);
}