See https://github.com/sebastianbergmann/phpunit/issues/3368 for migration path.
What to use instead?
For those coming from the deprecation in the code, here is a quick summary of the methods to use instead (to save you a click):
assertIsArray()assertIsBool()assertIsFloat()assertIsInt()assertIsNumeric()assertIsObject()assertIsResource()assertIsString()assertIsScalar()assertIsCallable()assertIsIterable()assertIsNotArray()assertIsNotBool()assertIsNotFloat()assertIsNotInt()assertIsNotNumeric()assertIsNotObject()assertIsNotResource()assertIsNotString()assertIsNotScalar()assertIsNotCallable()assertIsNotIterable()
Most helpful comment
For those coming from the deprecation in the code, here is a quick summary of the methods to use instead (to save you a click):