Monkey and Gorilla Testing

Monkey Testing

• Monkey testing is a type of software testing in which a software or application is tested using random inputs with the sole purpose of trying and breaking the system. 
• Monkey testing tests the whole system, There are no rules in this type of testing.
• Monkey testing is usually implemented as random, automated unit tests.
• Monkey testing is also known as Random testing, Fuzz Testing or Stochastic Testing.
• Monkey testing is a crucial testing method that is done to authenticate the functionality of the product application. 
• Monkey testing is a kind of black box testing.

Gorilla Testing

• Gorilla testing is a software testing technique that repeatedly applies inputs on a module to ensure it is functioning correctly and that there are no bugs. 
• Gorilla testing is a manual testing procedure and is performed on selected modules of the software system with selected test cases.
• Gorilla testing is not random and is concerned with finding faults in a module of the system.
• Gorilla Testing is also known as Torture Testing, Fault Tolerance Testing or Frustrating Testing.
• Gorilla Testing is a manual testing and it is repetitively performed.
• Gorilla testing is a kind of white box testing.

Difference between monkey and gorilla testing:

Monkey	Gorilla
Monkey testing is a type of software testing which is performed based on some random inputs without any test cases and checks the behaviour of the system and confirms whether it crashes or not.	Gorilla Testing is a type of software testing which is performed on a module based on some random inputs repeatedly and checks the module’s functionalities and confirms no bugs in that module.
In Monkey Testing, no test case is used to test the application as it is a part of random testing.	It is performed repeatedly as it is a part of manual testing.
The Monkey Testing approach is primarily used in System Testing.	The Gorilla Testing approach is mainly used in Unit Testing.
Monkey testing is implemented on a whole system.	Gorilla testing is implemented on few selective components of the system.
No software knowledge is required in order to execute the monkey testing.	It requires minimum software knowledge in order to execute the gorilla testing.
The main objective of Monkey Testing is to check whether system crashes or not.	The main objective of Gorilla testing is to check whether the module is working properly or not.
Monkey testing is also known as Random testing, Fuzz Testing or Stochastic Testing.	Gorilla Testing is also known as Torture Testing, Fault Tolerance Testing or Frustrating Testing.
There are three types of Monkey Testing i.e. Dumb Monkey Testing, Smart Monkey Testing and Brilliant Monkey Testing.	While there is no such different types of Gorilla Testing available.
The implementation of Monkey testing does not require any planning or preparation.	The Gorilla testing cannot implement without any preparation or planning.

Please refer below video on monkey and gorilla testing: