Automation testing

Automation Testing
TOMY RHYMOND | Cloud Solutions Architect

TEST AUTOMATION
TIMELINE
1. REQUIREMENTS
Gather business requirement
and validate it.
2. TEST CASES
Testers write the test cases
for all scenarios, positive,
negative, edge conditions
etc.
3. DEVELOP
Developers develop automated
tests for all happy path scenarios.
Testers develop automated tests
for all other scenarios.
4. TEST
Developers test the happy
path scenarios and Testers
test all other scenarios.
5. INTEGRATE
Integrate the tests with
DevOps CI/CD pipeline and
setup reports
6. MONITOR
Continuously monitor the
pipelines for code coverage
and other violations

DEVOPS – TEST AUTOMATION
TEST AUTOMATION
Process and Tools for Automating
Enterprise Testing
2
Developers: Happy Path Scenarios
Testers: All Scenarios
Pipeline: CD/ On-Trigger
Framework : Selenium, Protractor
.
END 2 END TESTING
1
UNIT TESTING
Test all ui and service components
Developers: All Scenarios
Pipeline: CD
Framework: xUnit, Jasmine
Code Coverage: 80%
4
Framework : JMeter, BlazeMeter
LOAD TESTING
3
API TESTING
Test Backend Service integration with other services.
Framework : Postman, Newman
Test UI browser compatibility, ADA Test Application Performance

TESTING PROCESS
Developers and Testers collaborate to create quality code that can be continuously deployed to your dev and test environments
DevTest
SPRINT 1
SPRINT 2
SPRINT3
Developer
Tester
Developer
Tester
Developer
Tester
 Develop code
 Write unit/integration/e2e tests for
their user stories
 Develop test cases for the
features/use stories
 Develop code
 Write unit/integration/e2e
tests for their user stories
 Fix bugs from the previous
sprint
 Run tests from the sprint 1
 Write more tests for their test cases
 Create Bugs for Failed Tests (Collaborate
with developers)
 Develop test cases for next sprint
 Develop code
 Write unit/integration/e2e
tests for their user stories
 Fix bugs from the previous
sprint
 Run tests from the sprint 1
 Write more tests for their test cases
 Create Bugs for Failed Tests
(Collaborate with developers)
 Develop test cases for next sprint
Review of requirements
Test planning / writing test
cases
Unit testing
End 2 End testing
API/integration testing
Performance testing
Security testing
Cross-browser testing / cross-
platform testing/ ADA testing
Updating test cases
Regression testing

CODING GUIDELINES FOR BETTER
TESTING
Unit Test are fast running tests that are quick to debug. They should cover the bulk of your testing strategy and
should cover majority of your code.
 Write Functional pieced without side effects
 Think of each code block as a functional piece that shouldn't cause any side
effects (like I/O).
 Any side effects should be isolated and wrapped.
 Use Dependency Injection
 Adhere to SOLID principles
 Class and methods should only have responsibility
 Write Unit Test first
 Extract all non-testable code into wrapper classes
 I/O operations and external APIs - code at the boundaries of your system.
 Isolate this code into narrow wrappers.
 Make sure to exclude as much logic from these wrappers as you can.
 Try not to use static methods and variables
 Static methods can be hard to mock out. Avoid them if possible.
 Static variables leave a global state and should only be used in very special cases
API C#/DotNet Core/AzureUI – Angular/TypeScript
 Add a selector to all elements.
 eg: <div id=“lastname”></div>
 Avoid using class name for selector
 Include an index with all for loops and add to selector
 eg: <div *ngFor="let subsection of subsections; index as i">
 id="questionaudiencetitle{{ i }}”
 Make sure you function does one thing.
 eg. fetchCustomer should only get customer data and should
not update data and then get customer data
 Make sure you typescript file (classes) has one purpose.
 eg. customerService should only be responsible for retrieving
and updating customer data.

UNIT TEST GUIDELINES
Unit Test are fast running tests that are quick to debug. They should cover the bulk of your testing strategy and
should cover majority of your code.
 Constructors or properties (if they just return variables). Test them only if
they contain validations.
 Configurations like constants, read-only fields, configs, enumerations, etc.
 Facades of just wrapping other frameworks or libraries
 Exception messages
 POCO classes, models, etc.
 Complex SQL Queries (more than 3 joins or grouping, etc.). Better to test
it with manual or some kind of system test against real DB.
 ASPNET controller methods
 Complex multi-threading code (it is better to be tested with integration
tests)
 Private methods and Methods that call another public method
What not to Unit TestWhat to Unit Test
 Reduce the number of test cases to the necessary minimum and to
select the right test cases to cover all possible scenarios.
 Test All UI Components and Service in UI Code.
 Test obscure edge cases
 Write each test to test one thing
 Use mock objects to clarify dependent contracts
 Test Repositories, Services and other business logic components in
backend API Code.
 Write your tests using the language used for development. Use
TypeScript/JavaScript for UI code and C# for backend code
 The name of the test should be the first, most useful clue when looking
at a failure report.

END 2 END TEST GUIDELINES
An application is interconnected and integrated with multiple systems that are outside of the application
environment. The entire flow of the application thus gets complicated. End-to-end testing ensures that the
application is tested from all layers – front end to backend along with its interfaces and the endpoints.
 Test from the Perspective of an End User – Think like a user, focus more on features rather than how the functionalities
are implemented.
 Focus on the features of your application whose failure will cause high risk.
 All requirements from Business should be in these tests.
 Initial E2E tests should be with consistent mock data, to isolate defects as with the UI only. If all UI and API tests run,
additional test runs should be done in each environment – Dev, Test, Staging, Prod.
 Expected results are stored in JSON files in a directory for each environment.
 The only UI aspects not tested are styles and layout – If these tests are needed, Protractor can be configured to do
Visual Regression Testing.
 ADA/Compliance testing is included in the E2E suite of tests.

API TEST GUIDELINES
API testing involves testing APIs directly and as part of integration testing to determine if they meet expectations
for functionality, reliability, performance, and security.
 API Tests isolate the REST services without a UI.
 Data to create the requests and validate the responses are stored in JSON files and categorized by environment, as
data will change.
 All services must have tests with a variety of conditions: Happy Path, empty responses, all error conditions, etc.
 Critical services should have additional tests to validate all the response scenarios - difference variables, numbers and
values of variables, etc.
 Postman scripts can be converted to JMeter tests with the use of conversion tools as an option (Loadium).
 Initial API test should run with mock data to isolate code defects to the API logic and not underlining changes to data
or connectivity issues.
 Like E2E test, data in the environments must not change or this will result in false positives when tests fail.

LOAD TEST GUIDELINES
Load testing is a kind of Performance Testing which determines a system's performance under real-life load
conditions. This testing helps determine how the application behaves when multiple users access it
simultaneously.
 Load test should focus on the typical user behaviors for a system: eg – authentication, landing page, app functionality,
etc.
 Loads should be determined by user behavior during peak times. If the peak load is x number of concurrent users, test
should be run starting at 10% peak, then inclemently up to 100%, and then to up to milestone like 125%, 150% an
200%. A final test to determine at what point does the solution break is recommended.
 Test durations are determine based upon actual production peak time and increased 500%.
 Browsers are not involved in a load tests, but the rending of UI files are – HTML, CSS, JS, Bundles, etc.
 Automated load test should be run on off-peak times, not to stress the system but as a comparison if recent code
commits have significantly impacted performance. This will eliminate major surprises when a full test is run at the end
of a development cycle.

SECURITY TEST GUIDELINES
Testing that ensures software systems and applications are free from any vulnerabilities, threats, risks that may
cause a big loss.
 A password should be in encrypted format
 Application or System should not allow invalid users
 Check cookies and session time for application
 Token expire after certain time
 For financial sites, the Browser back button should not work.
Example Test Scenarios

DEVOPS – DELIVERY
MODEL
Continuous
Integration Sprint
Product
Backlog
Priorities Sprint
Backlog
Product
(Usable)
Acceptance Tests
Deployment
(production)
To Do… To Do…
Continuous
Delivery
Acceptance Tests
Deployment
(production)
Product
Backlog
Priorities Sprint
Backlog
To Do…
Product
(Usable)
Sprint
Acceptance Tests
Deployment
(production)
Product
Backlog
Priorities Sprint
Backlog
Product
(Usable)
Continuous
Deployment Sprint

SUMMARY
 Reliable and Repeatable
 Reusable
 Fast
 Cost Effective
 Comprehensive
 Reduce testing time for bug
fixes and maintenance
 Learning curve
 Debugging test scripts
 Test maintenance
 Test data file maintenance
 Increase in development time
CONS
PROS
Automation process includes creation of
detailed test cases, including predictable
“expected results”, which have been
derived from Business Functional
Specifications and other design
documentation.
A standalone Test Environment, including a Test Database that is restorable to a known
constant, such that the test cases are able to be repeated each time there are
modifications made to the application.
Automation refers to the use of
strategies & tools which augment or
reduce the need of manual testing.
11/11/2020

Automation testing

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