infix fun <T : CharSequence> Assert<T>.containsRegex(pattern: String): AssertionPlant<T>Makes the assertion that the Assert.subject contains a sequence which matches the given pattern.
It is a shortcut for to contain atLeast 1 regex pattern.
AssertionError - Might throw an AssertionError if the assertion made is not correct.
Return
An Expect for the current subject of the assertion.