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Comments (3)

jnyrup avatar jnyrup commented on June 11, 2024 1

If the method signature MatchRegex is changed to AndWhichConstraint<TAssertions, Match> and #2597 gets merged, it could even be written as

[Test]
public void SomethingReturnsValidCode()
{
    var resultOfSystemUnderTest = "abc123XY";

    resultOfSystemUnderTest.Should().MatchRegex(new Regex(@"(abc?)(\d{3})([X-Z]*)"))
        .Which.Should().Satisfy<Match>(match =>
        {
            match.Groups[2].Should().Be("123");
            match.Groups[3].Should().Be("XY");
        });
}

One microscopic downside is that MatchRegex will need to switch from the lighter Regex.IsMatch to Regex.Match, but I don't think that will be noticeable from test.

from fluentassertions.

dennisdoomen avatar dennisdoomen commented on June 11, 2024 1

Or even more idiomatic FA like

var resultOfSystemUnderTest = "abc123XY";

resultOfSystemUnderTest.Should().MatchRegex(@"(abc?)(\d{3})([X-Z]*)")
    .WithGroup(2).Being("123")
    .And.WithGroup(3).Being("XY");

from fluentassertions.

IT-VBFK avatar IT-VBFK commented on June 11, 2024

What about this (to avoid this indexers):

[Test]
public void SomethingReturnsValidCode()
{
    var resultOfSystemUnderTest = "abc123XY";

    resultOfSystemUnderTest.Should().MatchRegex(new Regex(@"(abc?)(\d{3})([X-Z]*)"))
        .Which.Groups.Should().SatisfyRespectively(group0 => {}, groupX => { groupX.Should().Be("123") }, ...);
}

The only drawback is, that you have to add all inspectors (like group0), which are empty if you want to ignore them...

from fluentassertions.

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