Junit wrapper's state annotation suggestion doesn't escape double quotes

[TimothyJones]

When you're using the JUnit wrapper and you are missing a state handler, the wrapper helpfully tells you what the state annotation should be. However, if the state string has " characters in it, they're not escaped, so you can't copy and paste the state string.

To reproduce:

Create a consumer contract with a state like Some state "with quotes", and verify this in a JUnit test without implementing any state handlers.

Expected behaviour:

An error message that reads:

Did not find a test class method annotated with @State("Some state \"with quotes\"")

This can then be copied and pasted into the test code.

Actual behaviour:

An error message that reads

Did not find a test class method annotated with @State("Some state "with quotes"")

This cannot be safely copied and pasted because the quotes are not escaped