test: add unit test for direct caller support in contract call

[chenfengjin]

Description

add unit test for direct Caller support in contract call

Fixes # (issue)

Type of change

Please delete options that are not relevant.

• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] This change requires a documentation update

Brief of your solution

Please describe your solution to solve the issue or feature request.

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration