Functional Testing Vs Integration Testing

 

Aspect	Functional Testing	Integration Testing
Scope	Focuses on individual functions/features.	Focuses on interactions between integrated modules.
Level	Typically higher-level testing.	Generally lower-level testing.
Dependencies	Often independent of other parts of the system.	Relies on multiple integrated components.
Test Environment	Can be conducted in a controlled environment.	Requires a more complex integrated test environment.
Test Coverage	Tests functionalities as per requirements.	Tests interactions between integrated components.
Isolation	Can be performed in isolation.	Requires integration of multiple components.
Inputs/Outputs Focus	Focuses on inputs and outputs of functions/features.	Focuses on inputs/outputs between modules.
Focus Area	Emphasizes validating user requirements.	Emphasizes validating component interactions.
Test Cases	Test cases based on functional specifications.	Test cases based on integration scenarios.
Debugging	Easier to debug due to isolated nature of tests.	More complex debugging due to integrated nature.
Mocking	Often uses mock objects to simulate behavior.	May require stubbing or mocking of dependencies.
Integration Points	Not concerned with integration points.	Concerned with identifying and testing integration points.
System Dependencies	Typically fewer system dependencies.	May require additional setup due to dependencies.
Component Integration	Doesn't involve integrating system components.	Requires integration of system components.
Failure Identification	Identifies failures within functions/features.	Identifies failures in integrated components.
Test Environment Setup	Setup is usually simpler.	Setup may involve configuring multiple components.
Automation	Often automated using tools like Selenium.	Can be automated but requires integrated setups.
Validation	Validates individual features against requirements.	Validates interaction among integrated components.
Code Coverage	Less concerned with code coverage.	May require higher code coverage due to integration.
Performance Impact	Minimal performance impact due to isolated tests.	May have performance impact due to integrated tests.
Scalability Testing	Not directly related to scalability testing.	May involve testing scalability of integrated system.