[BigQuery] [GCS] Better ways to deal with google client mock

[ShihChun-H]

Issue Description

Current State

• Go packages of google does not provide interface.

Why We Want to Change?

• So, it is a bit hard to mock client to write isolated test codes

Proposed Change

• Research if there are better ways to deal with google client mock

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[naaa760]

Hello @ShihChun-H

I want to work on this issue, Please assign me!
Thankyou!

[ShihChun-H]

Hi @naaa760, The issue has been assigned to you! Cheers!

[shubhamchasing]

@ShihChun-H It seems this issue is still To be claimed

[ShihChun-H]

Hi @shubhamchasing , thanks for the reminder 🙏

[naaa760]

Thank you for assigning me. I will solve this issue in a few hours! :)