Question: - Mr. John is Salesforce developer and when he is creating a salesforce testClass of a main class where his main class covered more than 80-90 DML and SOQL operations. When he is creating...

Extracted text: Question: - Mr. John is Salesforce developer and when he is creating a salesforce testClass of a main class where his main class covered more than 80-90 DML and SOQL operations. When he is creating the test class he is getting the 101 DML Error. So please Explain What is the main use of Test.startTest() and Test.stopTest()