Modify test_framework, making it create only one task per offer.
Modify test_framework, making it create only one task per offer.

yuquanshan/customizedMesos,yuquanshan/customizedMesos,yuquanshan/customizedMesos,yuquanshan/customizedMesos,yuquanshan/customizedMesos,yuquanshan/customizedMesos,yuquanshan/customizedMesos