With Behat/Mink, how to match an exact number? - behat

Question

I'm trying to match an exact number for a page element with Behat/Mink.
My test looks like this:
Then the "td.points" element should contain "1"
This matches if td.points is 1 (good), but it also matches if td.points is 10 or 21 (bad).
I tried using a regex like this:
Then the "td.views-field-field-int-repetitions" element should contain "\b1\b"
But the regex wasn't picked up.
I tried to dig through the code and I see that MinkContext has assertElementContains, but I couldn't find anything like AssertElementIs.
What I want is something like
Then the "td.points" element should be exactly "1"
How can I implement this?
EDIT: This is the element contains feature from MinkContext.php:
/**
* Checks, that element with specified CSS contains specified HTML
* Example: Then the "body" element should contain "style=\"color:black;\""
* Example: And the "body" element should contain "style=\"color:black;\""
*
* #Then /^the "(?P<element>[^"]*)" element should contain "(?P<value>(?:[^"]|\\")*)"$/
*/
public function assertElementContains($element, $value)
{
$this->assertSession()->elementContains('css', $element, $this->fixStepArgument($value));
}

Answer 1

For extracting the number from the step you could use for a number:
the "(.*)" element should contain (\d+)
or for string
the "(.*)" element should contain "(.*)"
or other example for string
the "(.*)" element should contain (.*)
and for asserting depends on how your code is organized, use what you have or you could just do:
if($someActual != $expected)
{
throw new \Exception("something meaningful");
}

Answer 2

Thanks to #lauda, I was able to write the code I wanted:
/**
* #Then the :element element should be exactly :value
*
* Checks that the element with the specified CSS is the exact value.
*/
public function theElementShouldBeExactly($element, $value) {
$page = $this->getSession()->getPage();
$element_text = $page->find('css', "$element")->getText();
if ($element_text === NULL || strlen($element_text < 1)) {
throw new Exception("The element $element had a NULL value.");
}
if ($element_text !== $value) {
throw new Exception("Element $element_text did not match value $value.");
}
}