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What is Unit Testing?

Interactions

class A {
   B b;

   String doSome() {
       Data bData = b.doSome()
       //domeSomething with bData
        return something;
   }
}

Interaction cardinality

class A {
   B b;

   String doSome() {
       Data bData = b.doSome(args1)
       Data cData = b.doSome(cargs1)
       //domeSomething with bData
        return something;
   }
}

Arguments constraints

class A {
   B b;
   C c;

   String doSome() {
       Data bData = b.doSome(args1)
       Data cData = c.doSome(cargs1)

       return bData + cData;
   }
}

• b.doSome is invoked with args1
• c.doSome is invoked with cargs1

Unit Testing Standards

https://github.com/prayagupa/java-tdd#ut-practices