html export: Simplify & speed-up the test.
html export: Simplify & speed-up the test.

Change-Id: I619e4441898fe10e319d9f95413f078003364579

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core