Last updated on 2024年7月9日

Automated tests are failing while manual tests pass. Are you confident in your testing strategy?

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When automated tests fail and manual tests pass, it can shake your confidence in your testing strategy. This discrepancy often points to underlying issues with the test environment, configuration, or the automated test scripts themselves. Manual testing is performed by a human who can adapt to various conditions and interpret results with nuance, whereas automated tests are programmed to follow strict criteria. This can lead to false positives or negatives if the automated tests aren't designed with enough flexibility or understanding of the system under test (SUT). It's essential to evaluate why these differences in outcomes are occurring and adjust your approach accordingly.

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1 Test Reliability

Automated tests should be reliable and produce consistent outcomes. If they don't, it could be due to flaky tests which are non-deterministic and fail intermittently without any changes in the code. Flakiness can stem from timing issues, dependencies on external services, or concurrency problems. It's crucial to identify flaky tests by running them multiple times and in different environments. Once identified, you need to refactor these tests to eliminate any non-determinism and ensure they are robust against the conditions that caused them to fail initially.

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Cíntia Panizzi

QA Engineer | Automation Testing | Manual Testing | Selenium | Cypress | Javascript | C# | Certified Pega Systems Architect
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Consistent test data, using shared test data sets for both manual and automated tests, implement version control for test scripts, and mock services for consistent environments. Integrate automated tests into the CI/CD pipeline

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Sadia Ghulam Rasool

Test Automation Engineer | core banking | web application testing| Selenium | Api Testing | Fintech | Digital Payment | POS acquiring , Merchant & E-commerce payment | VISA/MC/UPI certifications | IBFT
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Ensure your automated tests are well-designed and up-to-date with the current requirements. Cross-verify automated test results with manual tests and review the automation scripts for possible errors or gaps. Regularly update and maintain your automated test suite to reflect any changes in the application.

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2 Environment Factors

The testing environment plays a significant role in the success of automated tests. Differences between the local development environment where manual tests pass and the automated test environment can lead to failures. These can include configuration differences, data state discrepancies, or network latency. To counteract this, ensure that your automated test environment closely mirrors the production environment or the one in which manual testing is performed. This includes using similar data sets, configurations, and system resources.

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jaya Krishna tummala ,MS, CSM

Senior Functional Quality Assurance/BSA/SAP QA - Safe 6.0 Agilist
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Use consistent data sets across testing environments to prevent data state discrepancies that may impact test results. Implement data management practices to ensure that automated tests operate reliably with accurate and representative data.

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3 Test Coverage

Test coverage is a measure of how much of the application's code is exercised by your tests. While high coverage is desirable, it's more important that your tests cover the critical paths and features of your application. If automated tests are failing, it might indicate that they're covering edge cases or paths that manual testing does not, or vice versa. Review your coverage reports to ensure that both manual and automated testing complement each other and provide a comprehensive assessment of the application's quality.

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4 Script Robustness

The robustness of your automated test scripts is vital. If they're failing while manual tests pass, it may indicate that the scripts are not well-written or maintained. Automated test scripts should be able to handle changes in the application's user interface or APIs without breaking. They should also include proper error handling and assertions that accurately reflect the intended behavior of the application. Regularly review and update your test scripts to adapt to changes in the application to maintain their effectiveness.

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5 Human Insight

Human insight is an invaluable component of testing. Manual testers can observe and interpret behaviors that automated tests might not be programmed to catch. If automated tests are failing, it could be that they're not accounting for certain user interactions or complex application states that a human tester would notice. It's important to recognize the limitations of automated testing and ensure that manual testing continues to play a role in your overall strategy, especially for exploratory testing and user experience evaluations.

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Boon Chuan Tan

QA Engineer | Elevating Automated Testing with Human Insight
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Exploratory testing is vital in the software testing process because it leverages human intuition, creativity, and domain knowledge to uncover issues that automated tests might miss. This approach allows testers to dynamically adapt their strategies based on real-time observations, exploring unexpected behaviors and edge cases with flexibility that scripted tests lack. By simulating real-world user interactions and thinking outside the box, exploratory testing identifies usability, performance, and functionality issues, ensuring the software meets user needs and expectations. Ultimately, it provides immediate, actionable feedback, fostering quicker issue resolution and higher software quality.

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Yuliia Salaman
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Have experienced testers review both automated and manual test results. They may provide insights into why the automated tests are failing and if there are any missed issues in manual testing.

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6 Strategy Evaluation

Evaluating your testing strategy is a continuous process. When facing inconsistencies between automated and manual test results, it's time to reassess your approach. Consider whether your automated tests are aligned with your business goals and whether they truly reflect user behavior and critical functionality. It may be necessary to revise your test cases, improve your automation framework, or invest more in manual testing for certain areas. Regular strategy evaluations help ensure that your testing efforts remain effective and aligned with your project's objectives.

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7 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

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Yuliia Salaman
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- Treat this as an opportunity to refine and improve your testing strategy. Encourage collaboration between automation and manual testing teams to leverage their strengths effectively. - Ensure that your testing teams are adequately trained in both automated and manual testing techniques. Foster a culture of knowledge sharing to address gaps in skills or understanding.

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Automated tests are failing while manual tests pass. Are you confident in your testing strategy?

1

2

3

4

5

6

7

1 Test Reliability

2 Environment Factors

3 Test Coverage

4 Script Robustness

5 Human Insight

6 Strategy Evaluation

7 Here’s what else to consider

Software Testing

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Automated tests are failing while manual tests pass. Are you confident in your testing strategy?

1

2

3

4

5

6

7

1 Test Reliability

2 Environment Factors

3 Test Coverage

4 Script Robustness

5 Human Insight

6 Strategy Evaluation

7 Here’s what else to consider

Software Testing

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