[ivi-tct][webapi] Add 21 tests for WOFF

Impacted tests(approved): new 21, update 0, delete 0
Unit test platform: [IVI]
Unit test result summary: pass 21, fail 0, block 0
Merge pull request #1412 from yunxiaoxie/webapi/woff

[ivi-tct][webapi] Add 21 tests for WOFF