Monkey Testing Types of Monkey Testing Advantages & Disadvantages

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definition of monkey testing

MonkeyRunner tool is used for performing monkey testing on an Android application. It is a great way to find major bugs that might break the system due to random inputs. Both Monkey testing and Gorilla testing have the common strategy of applying random inputs to the application but they are major differences in the way it verifies the application. Gorilla testing comes under a manual testing technique in which a tester would test a module repeatedly to test the robustness of the module.

Brilliant Monkey Testing

In this, the test engineer or a team of test engineers is assigned for the task, as they have complete knowledge about the particular software domain and its features. In this, the test Manager or lead appoints a test engineer who does not have the knowledge of particular module of an application in order test the product. The implementation of monkey testing makes sure the reliability and efficiency of the system. Such approach helps to detect introducing bugs of the product which could not be found via special scenarios. In case of time crunch and if all the other test are completed, tester can opt for Monkey Testing which allows fixing of bugs quickly.

definition of monkey testing

On top of this they are also unknown to the UI and functionality of the software. This tutorial will teach you the definition of Monkey testing and different types of Monkey testing. This testing is so random that the tester may not be able to reproduce the error/defect. The smart monkey can be efficient when provided with the state model but it also becomes expensive in that case.

There are Some Other Features of Monkey Testing:

Even those test engineers do not have any idea whether the given inputs are valid or invalid. That is why dumb monkey testing is also known as Ignorant monkeys. To perform any kind of automated testing using appropriate tools is a must.

The goal of monkey testing is to use innovative ways to uncover faults and problems in software applications. Unlike other testing techniques, monkey testing does not follow any particular pattern or test cases. Thus it is very less time-consuming and we can find critical bugs without following a predefined set of scenarios.

Developing different applications specific to a company has become the norm for every successful business in today’s world. Explore the possibility to hire a dedicated R&D team that helps your company to scale product development. Testing by a random choice from a large range of inputs, by randomly pressing buttons, without correlation with how the system will be used in reality.

PCR blood tests are usually inconclusive because of the short duration of viremia relative to the timing of specimen collection after symptoms begin and should not be routinely collected from patients. This tool generates pseudo-random streams of user events such as clicks, touches, or gestures for an emulator or android device. Here we can use this tool to execute monkey testing in a random yet repeatable manner. It can be time-consuming to get those random inputs, execute cases for a small set of bugs that might not be even relevant. In monkey testing, when the tester has advanced knowledge about both the application’s functionalities and the domain expertise, it is called Brilliant monkey testing. The tester also known as the dumb monkey in this testing has no idea about the flow of work or the required data that needs to be fed to the application in an ideal environment.

As a result, Steve Capps utilized the Monkey software to insert useless data into Macwrite and Macpaint. The Monkey worked in tandem with the other programs, data entering functioning in the system. There was very little memory available after the application had been fully launched than was necessary to do the test.

  • The data that is generated or obtained from random testing can then be further used to estimate products reliability.
  • As test cases are adhoc, application might get into stress, hence tester can also check for server response.
  • These pets had been housed with Gambian pouched rats and dormice that had been imported into the country from Ghana.
  • Furthermore, the test engineer knows about the pattern of using the product, and henceforth, they can perform testing from the user’s viewpoint.
  • In some systems, monkey testing can go on for a long time before finding a bug.
  • The Input data that is used to test also generated randomly and keyed into the system.

This form of testing, the test inputs are randomly generated according to an operational profile and failure times are recorded. The data that is generated or obtained from random testing can then be further used to estimate products reliability. Other testing methods cannot be used in this way to estimate software reliability. Vaccination against smallpox was demonstrated through several observational studies to be about 85% effective in preventing monkeypox. Evidence of prior vaccination against smallpox can usually be found as a scar on the upper arm. At the present time, the original (first-generation) smallpox vaccines are no longer available to the general public.

Dumb monkey tests

These type of Monkey testers have significant idea about the system or the functionalities. This is just like a normal tester who applies his/ her test cases without predefining any strategies to find bugs or errors. Their only focus is to break the application thus are not aware of any start or end point of the whole process.

So, by this testing, testers can ensure the needs of the end user and decrease the probability of software breakdown. Here, we have learnt in key features, types and Advantages and Disadvantages of it. We can use monkey testing to analyze the scenarios in which the customer might use the application.

definition of monkey testing

Gorilla Testing is a software testing approach in which a program module is checked regularly to verify that it is operating properly so that there are no bugs in that module. The bugs found in monkey testing can be out of scope or out of business requirements. The scenarios covered under monkey testing are ad hoc, the testers can test the server response time along with it. It is easy to execute as it does not follow any specific predefined cases, the tester has to give random inputs to the application.

What exactly is Gorilla Testing?

These type of Monkey testers perform testing as per customer’s behavior. He is skilled in test automation, performance testing, big data, and CI-CD. He brings his decade of experience to his current role where he is dedicated to educating the QA professionals. Unlike Exerciser monkey, the Monkey runner tool is useful for running test cases from the outside of the android code.

definition of monkey testing

Unexpected bugs found by monkey testing can also be challenging and time consuming to analyze. In some systems, monkey testing can go on for a long time before finding a bug. For smart monkeys, the ability highly depends on the state model provided, and developing a good state model can be expensive. Some smart monkeys are also referred to as brilliant monkeys, which perform testing as per user’s behavior and can specify some probabilities of bugs to be occurred. The main objective of the team during monkey testing is to crash the system and to prevent it from happening in the future under any circumstances. Monkey testing, which is also known as random testing, is the easiest way of testing the quality, functionality, as well as the performance of the software.

This technique is done automatically where user enters any invalid inputs to check applications’s behavior. In monkey testing, when the tester has no knowledge about the software or features, functionalities, behavior and starts testing the application randomly, it’s called the definition of monkey testing Dumb monkey testing technique. In smart monkey testing, the test engineer is focused on surpassing the application, and if they identify an error, they are smart enough to report a bug. Also, smart testing is an excellent choice to perform load testing and stress testing.

Smallpox was more easily transmitted and more often fatal as about 30% of patients died. The last case of naturally acquired smallpox occurred in 1977, and in 1980 smallpox was declared to have been eradicated worldwide after a global campaign of vaccination and containment. It has been 40 or more years since all countries ceased routine smallpox vaccination with vaccinia-based vaccines. As vaccination also protected against monkeypox in west and central Africa, unvaccinated populations are now also more susceptible to monkeypox virus infection.

It automatically runs a stream of auto-generated tests like touches, clicks, or gestures. A test monkey is an automated that simulates a monkey that tests the application in random fashion. The end user who uses any application or software is not expected to have the functional knowledge of the same. So by this testing, we can ensure the fulfillment of the needs of the user and decrease the probability of the awful breakdown of the software and system. They do not have any clue if the provided inputs are valid or invalid.


The application is tested randomly without any application knowledge. Monkey Testing is very ad-hoc in nature and many a times confused with Gorilla Testing which is pre-planned and strategized. The test input values provided in monkey testing are so random that it becomes very difficult to reproduce the bugs and errors. In case of a time crunch, if all the other test have been performed, the tester can opt for monkey testing that will allow quick fixing of the bugs.

Uses Of Monkey Testing

In other words, we can say that brilliant monkey testing is one step ahead of smart monkey testing. Though we have seen that Monkey Testing is chaotic, it is recommended to plan and assign some time for its execution. In initial phases of testing, tester may not find bugs, but it can help is discovering memory leak, hardware crash, fault lines which are difficult to find in normal testing.

Is Monkey Testing being similar as Gorilla Testing and Fuzz Testing?

We uncovered the terrible plight of animals used in research at this ‘world-leading’ UK university. They are typically sterile, indoor environments in which the animals are forced to live in cages, pens or Perspex boxes – denied complete freedom of movement and control over their lives. Some animals in laboratories are confined on their own, without the companionship of others. Some monkeys are still trapped in the wild in Africa, Asia and South America to be used in experiments or imprisoned in breeding facilities. The use of wild-caught monkeys in experiments is generally banned in Europe but is allowed elsewhere. A surprisingly, large range of animal species are regularly used in experiments, including wild animals.

What is animal testing?

It is also known as stochastic testing, and best suited for desktop, web, as well as mobile applications. It is a time and effort-saving process if we are using random testing or monkey testing inputs. Use of inputs of random testing / monkey testing can save some of the time and effort that more thoughtful test input methods require. Mostly performed automatically, in monkey testing the user enters any random invalid input and checks its behaviour. Moreover, it does not follow any predefined test cases or strategy and hence works on tester’s mood and gut feeling. Monkey Testing / Random testing works very well when doing load and stress testing.

This technique of software testing is extremely popular among software engineers and is used by them to test applications by providing random inputs and checking its behaviour. They are developed to generate random data so that all the faults and flaws can be reported in the application. The generation of monkey testing tools requires some good amount of efforts but once they are done, they perform efficiently with automation. This is also true in case of these techniques, the brilliant monkey testing is an advancement in the smart monkey testing technique. Dumb monkey testing technique or ignorant monkeys, as the name specifies, inculcates a tester who has no knowledge of the application, its features, functions, working behavior or bugs.

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