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BeginnerTest automation

JavaScript for QA Automation

A practical JavaScript foundation for QA professionals. Learn the language through product risks, realistic test data, debugging, and test-ready coding habits.

JavaScript values and control flowFunctions and scopeArrays, objects, and JSONErrors and debuggingPromises and async functionsAssertions and data-driven checks
Learning outcomes

What you’ll be able to do.

01

Write focused JavaScript functions for QA decisions

02

Build representative test data and inspect structured results

03

Create readable assertions and failure evidence

04

Test simulated asynchronous success and failure workflows

05

Review automation code for correctness, isolation, and maintainability

Curriculum

12 focused modules.

48 lessons total
01Why JavaScript matters and what this course will teach youUnderstand why JavaScript matters in QA work. Preview the knowledge, practical skills, and outcomes that you will build.
  1. ↳Welcome to JavaScript for QA AutomationLesson
  2. ↳What programming is and how JavaScript runsLesson
  3. ↳Meet the TrailShop quality scenarioLesson
  4. ↳Run your first QA scriptLesson
02Represent test informationUse JavaScript values and variables to represent inputs, observations, and expected results.
  1. ↳Recognize JavaScript valuesLesson
  2. ↳Name data with variables and constantsLesson
  3. ↳Control type conversionLesson
  4. ↳Format readable test evidenceLesson
03Make decisions at product boundariesUse comparisons and conditional logic to express expected behavior at important boundaries.
  1. ↳Compare values with purposeLesson
  2. ↳Combine rules with Boolean logicLesson
  3. ↳Choose actions with conditionalsLesson
  4. ↳Turn boundaries into codeLesson
04Repeat checks across data setsUse loops and iteration to apply one clear check to several representative cases.
  1. ↳Repeat a known check with for ofLesson
  2. ↳Use indexes when position mattersLesson
  3. ↳Control loop executionLesson
  4. ↳Diagnose repetition failuresLesson
05Create reusable checks with functionsBuild small functions that express one testing decision and return a useful result.
  1. ↳Define a focused functionLesson
  2. ↳Design parameters and return valuesLesson
  3. ↳Keep state inside the correct scopeLesson
  4. ↳Pass behavior with callbacksLesson
06Manage test cases with arraysOrganize test data and use array operations to select, transform, and summarize cases.
  1. ↳Build clear test data arraysLesson
  2. ↳Find and filter relevant casesLesson
  3. ↳Transform data with mapLesson
  4. ↳Summarize results with reduceLesson
07Model product data with objects and JSONRead and create structured records that resemble application data and API messages.
  1. ↳Model a record with an objectLesson
  2. ↳Inspect nested product dataLesson
  3. ↳Copy and destructure with intentLesson
  4. ↳Parse and serialize JSONLesson
08Inspect text, dates, and patternsProcess common text and time values without making fragile product assumptions.
  1. ↳Normalize text carefullyLesson
  2. ↳Build evidence with template stringsLesson
  3. ↳Handle dates and time zonesLesson
  4. ↳Use regular expressions with restraintLesson
09Handle failures and debug evidenceRecognize JavaScript failures, preserve their context, and recover only when recovery is valid.
  1. ↳Read errors and stack tracesLesson
  2. ↳Signal invalid state with errorsLesson
  3. ↳Recover with try and catchLesson
  4. ↳Debug one variable at a timeLesson
10Test asynchronous workflowsUse promises and async functions to inspect delayed success, rejection, and timeout behavior.
  1. ↳Recognize promise statesLesson
  2. ↳Use async and awaitLesson
  3. ↳Test asynchronous failuresLesson
  4. ↳Control timeouts and concurrent workLesson
11Build test-ready JavaScriptCreate focused assertions and organize JavaScript checks so teammates can read, change, and trust them.
  1. ↳Write a focused assertionLesson
  2. ↳Structure a data-driven checkLesson
  3. ↳Separate test data actions and checksLesson
  4. ↳Understand runtime modules and packagesLesson
12Apply the complete JavaScript workflowPlan and complete a capstone that combines data, functions, assertions, and asynchronous behavior.
  1. ↳Plan the TrailShop capstoneLesson
  2. ↳Build the capstone validation toolkitLesson
  3. ↳Test the capstone order workflowLesson
  4. ↳Review outcomes and choose next stepsLesson
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