TESTED BY ME•Web Application QA•2026

E-Commerce Platform Quality Audit

High-Traffic Retail Flow & Cart Verification

End-to-end manual functional testing for an online shopping platform to validate user authentication, product catalog filters, cart calculations, and checkout gateways.

Scenarios Executed85

Defects Uncovered18

Critical Blockers3

Post-Fix Pass Rate96.4%

The Engineering Challenge

The client experienced checkout abandonment and cart discount discrepancies when multiple discount vouchers were applied with edge-case item quantities.

The QA & Dev Solution

Engineered an 85-scenario test suite applying Equivalence Partitioning and Boundary Value Analysis to cart limits, promo inputs, and payment states. Uncovered 18 defects including 3 critical checkout blockers.

My Actual Responsibilities

01.Designed test scenarios using Equivalence Partitioning and Boundary Value Analysis
02.Executed full manual functional testing across cart drawers and multi-step checkouts
03.Identified and documented 18 defect reports with step-by-step reproduction flows
04.Conducted regression testing after engineering sprint hotfixes

Deliverables Produced

Comprehensive Test Scenarios Matrix (85 cases)

Structured Bug Log with Severity & Priority Matrix

Final Test Execution Summary & Release Sign-Off

Technologies & Testing Utilities:

Manual TestingTestRail / ExcelChrome DevToolsJiraBoundary Value AnalysisEquivalence Partitioning

Executed Test Scenarios Matrix

All Scenarios Verified

Test ID	Scenario / Condition	Technique	Expected Result	Result
TC-EC-01	Cart Item Quantity - Boundary Max Limit (99 items)	Boundary Value Analysis	Quantity capped at 99 with clear user inline error message	PASS
TC-EC-02	Promo Code - Equivalence Class Invalid Special Characters (@#$%)	Equivalence Partitioning	Invalid code inline error, button disabled, no unhandled exceptions	PASS
TC-EC-03	Guest Checkout - Missing Required Billing Fields	Negative Testing	Highlight missing fields in red and prevent checkout progression	PASS
TC-EC-04	Payment Step - Double Click Fast Submission on Order Button	Concurrency / UI Lock	Button locks instantly on first click, single order record created	PASS

BUG-EC-09: Cart Total Calculation Error when applying percentage discount with modified quantitiesReporter: Youssef Salah Elbltagi • Software Testing Trainee @ DEPI

Severity: High

Priority: P1 - High

Environment: Staging / Chrome 124 / macOS & Windows 11

Status: Confirmed Defect

Regression: Verified

Steps to Reproduce:

Add item priced $100 to cart.
Apply 15% discount promo code 'SAVE15'.
Change item quantity from 1 to 2 in cart drawer.
Observe subtotal vs discounted total calculation.

Expected Result:Discount recalculated to 15% of $200 = $170 total.

Actual Result:Discount remains calculated on original $100 single item = $185 total.

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