private function requirementIsFulfilled( Whip_Requirement $requirement ) {
		$availableVersion = $this->configuration->configuredVersion( $requirement );
		$requiredVersion  = $requirement->version();

		if ( in_array( $requirement->operator(), array( '=', '==', '===' ), true ) ) {
			return -1 !== version_compare( $availableVersion, $requiredVersion );
		}

		return version_compare( $availableVersion, $requiredVersion, $requirement->operator() );
	}