mageekguy\atoum\asserters\constant::isEqualTo PHP Method

    public function isEqualTo($value, $failMessage = null)
    {
        if ($this->valueIsSet()->value === $value) {
            $this->pass();
        } else {
            $this->fail($failMessage ?: $this->_('%s is not equal to %s', $this, $this->getTypeOf($value)) . PHP_EOL . $this->diff->setExpected($this->value)->setActual($value));
        }
        return $this;
    }