private void ThrowLogMatchException(bool shouldHave, LogLevel level, string text, bool isRegex) =>
throw new AssertActualExpectedException(shouldHave, !shouldHave,
string.Format("Expected log {0} the {1} \"{2}\" at level {3}\n\nActual log output follows:\n{4}",
shouldHave ? "to have" : "not to have",
isRegex ? "pattern" : "exact message",
text,
level,
LogCapture.ToString()));
