public void AllByTextWithCaseInsensitiveFlagExecutesCaseInsensitiveSearchTest()
{
const string Html = @"
<html>
<head />
<body>
<p id='pascal'>First</p>
<p id='lower'>first</p>
</body>
</html>
";
var page = new HtmlPageStub(Html);
var actual = page.Find<HtmlElement>().AllByText("first", true).ToList();
actual.Count.Should().Be(2);
}