State Transition Testing is a type of software testing which is performed to check the change in the state of the application under varying input. The condition of input passed is changed and the change in state is observed. State Transition Testing is basically a black box testing technique that is carried out to observe the behaviour of the system or application for different input conditions passed in a sequence. In this type of testing, both positive and negative input values are provided and the behavior of the system is observed. State Transition Testing is basically used where different system transitions are needed to be tested.
Objectives of State Transition Testing
- Determining the System States: Identify and record the different states that the system that is being tested can be in. These phases are frequently connected to certain circumstances or occurrences inside the system.
- State Transition Modelling: It makes a model or state transition diagram that shows the system’s various states and the changes between them.
- Verifying Legitimate State Transitions: Check that the system responds to various inputs or events by switching between valid states in a correct manner. By doing this, it is ensured that the system transitions between states with expected behaviour.
- Checking the Beginning and End States: Verify that, following a series of actions or events, the system finishes in the expected final state and begins in the proper beginning state. This guarantees correct system setup and dismantling.
- Error Correction and Recovery: Examine the system’s capacity to recover from unforeseen conditions and accept faults with patience. This covers situations in which the system operates and runs into unexpected inputs or events.
Advantages of State Transition Testing
- Clear Visualization
- Effective Test Design
- Early Error Detection
Disadvantages of State Transition Testing:
- Having Trouble Identifying States
- Failed to Evaluate Combinations
- Risk of Omission