Write testcases on A--B--C microservices. Integration testcases.

Question

Write testcases on A-->B-->C microservices. Integration testcases.

Accepted Answer

Write integration testcases for A-->B-->C microservices

Test the communication between A and B microservices
Test the data flow from B to C microservices
Verify the response of C microservice based on input from A
Check for error handling and edge cases in the integration flow

Accepted Answer

Test Case 1: Verify Data Flow from A to B to C:

Description: Ensure that data flows correctly from microservice A to B to C.
Steps:
Send a request to microservice A with sample input data.
Verify that microservice A processes the request successfully and forwards the data to microservice B.
Verify that microservice B receives the data from A and processes it correctly.
Verify that microservice B forwards the processed data to microservice C.
Verify that microservice C receives the data from B and performs the expected operations.
Validate the final output returned by microservice C against the expected result.
Test Case 2: Test Boundary Conditions:

Description: Test the system's behavior when processing data at the boundary conditions.
Steps:
Send requests with minimum and maximum valid input values to microservice A.
Verify that microservice A handles the boundary input values correctly and forwards them to microservice B.
Verify that microservice B processes the boundary input values correctly and forwards them to microservice C.
Validate the output returned by microservice C for boundary input values against the expected results.
Test Case 3: Test Error Handling and Fault Tolerance:

Description: Verify the system's error handling and fault tolerance mechanisms.
Steps:
Inject faults, such as network errors or service unavailability, between microservices A, B, and C.
Send requests to microservice A and verify its behavior when it encounters errors or timeouts while communicating with microservices B and C.
Verify that microservices B and C handle errors gracefully and return appropriate error responses.
Validate that the system recovers gracefully from faults and continues to function correctly once the faults are resolved.
Test Case 4: Test Data Consistency:

Description: Ensure data consistency across microservices A, B, and C.
Steps:
Send requests to microservice A to create or update data entities.
Verify that microservice A stores the data correctly and propagates changes to microservices B and C.
Verify that microservices B and C receive the updated data from A and reflect the changes accordingly in their own data stores.
Validate that the data retrieved from microservices B and C is consistent with the changes made in microservice A.
Test Case 5: Test Performance and Scalability:

Description: Evaluate the system's performance and scalability under load.
Steps:
Simulate a high load scenario by sending a large number of concurrent requests to microservice A.
Measure the response times and throughput of microservices A, B, and C under different load levels.
Verify that the system scales horizontally by adding more instances of microservices A, B, and C and distributing the load evenly.
Validate that the system maintains acceptable performance levels and response times even under heavy load conditions.

Write testcases on A-->B-->C microservices. Integration testcases.

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Write testcases on A--&gt;B--&gt;C microservices. Integration testcases.

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Write testcases on A-->B-->C microservices. Integration testcases.