Missing method binding in test cases

[yiming-tang-cs]

Currently, the method binding cannot work in test cases.
Related to #16
I guess the problem may be from the imports (see the description in the issue 2).
#2 However, this issue only happens to the logging expression.

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[yiming-tang-cs]

Typebinding cannot work either.

[yiming-tang-cs]

I checked solutions from stackoverflow. They said I need to set project for parser or manually set environment, but it did not work. So I still avoid binding for testing now.