How to write such a regular expression?

Question

Regular Expressions

How can you get all matches from a certain amount of text according to such a pattern?
Get the occurrence of the word "test1", then, after it, everything that is possible, any characters, in any sequence, and in any number, but only up to the first encountered word "test2" or, for example, "}}". The characters between these occurrences can be anything.

Answer 1

/^test\d+(.+)(?:test\d+|}})$/
Regex101