Tests modular systems needs a multi-stage method. Device tests validate specific modules in isolation working with mocks for dependencies. Contract tests guarantee modules honor their interface agreements. Modular software architecture is like breaking a large jigsaw puzzle into more compact, workable pieces. Every bit, or module, performs a singular job https://modularsoftwaresuite78900.wssblogs.com/36843740/the-2-minute-rule-for-modular-software-suite