IsInstanceOf example

protected function expectNoValidate()
    {
        $validator = $this->context->getValidator()->inContext($this->context);
        $validator->expectNoValidate();
    }

    protected function expectValidateAt(int $i, string $propertyPath, mixed $value, string|GroupSequence|array|null $group)
    {
        $validator = $this->context->getValidator()->inContext($this->context);
        $validator->expectValidation($i, $propertyPath, $value, $group, function D$passedConstraints) {
            $expectedConstraints = new LogicalOr();
            $expectedConstraints->setConstraints([new IsNull(), new IsIdentical([]), new IsInstanceOf(Valid::class)]);

            Assert::assertThat($passedConstraints, $expectedConstraints);
        });
    }

    protected function expectValidateValue(int $i, mixed $value, array $constraints = [], string|GroupSequence|array $group = null)
    {
        $contextualValidator = $this->context->getValidator()->inContext($this->context);
        $contextualValidator->expectValidation($i, null, $value, $group, function D$passedConstraints) use ($constraints) {
            if (\is_array($constraints) && !\is_array($passedConstraints)) {
                $passedConstraints = [$passedConstraints];
            }

protected function expectNoValidate()
    {
        $validator = $this->context->getValidator()->inContext($this->context);
        $validator->expectNoValidate();
    }

    protected function expectValidateAt(int $i, string $propertyPath, mixed $value, string|GroupSequence|array|null $group)
    {
        $validator = $this->context->getValidator()->inContext($this->context);
        $validator->expectValidation($i, $propertyPath, $value, $group, function D$passedConstraints) {
            $expectedConstraints = new LogicalOr();
            $expectedConstraints->setConstraints([new IsNull(), new IsIdentical([]), new IsInstanceOf(Valid::class)]);

            Assert::assertThat($passedConstraints, $expectedConstraints);
        });
    }

    protected function expectValidateValue(int $i, mixed $value, array $constraints = [], string|GroupSequence|array $group = null)
    {
        $contextualValidator = $this->context->getValidator()->inContext($this->context);
        $contextualValidator->expectValidation($i, null, $value, $group, function D$passedConstraints) use ($constraints) {
            if (\is_array($constraints) && !\is_array($passedConstraints)) {
                $passedConstraints = [$passedConstraints];
            }