iTestData
iTestData — Test data engineering for modern systems.

iTestData

Test data engineering for modern systems.

Latest Articles

Recent posts from across the site.

Real-World 6 min read

Timezone Offset Inheritance in Multi-Locale Seed Factories

Multi-locale seed factories silently inherit conflicting UTC offsets. Here's how to detect, isolate, and fix timezone of...

Read article
Test 6 min read

Timezone Leakage When Seeds Cross DST Mid-Batch

DST mid-batch splits corrupt seed timestamps silently. Here's how to detect, isolate, and fix timezone leakage in seed p...

Read article
Test 6 min read

Faker Date Arithmetic Bugs From Locale Seeds

Timezone-naive locale seeds silently corrupt Faker date arithmetic. Here's why it happens and how to fix it with concret...

Read article
Real-World 6 min read

Timezone-Naive Seed Clocks Break Sequence Windows

Timezone-naive seed clocks silently corrupt sequence window assertions. Here's how to reproduce, fix, and prevent the fa...

Read article
Real-World 6 min read

Composite Key Collisions in Synthetic Data

Synthetic generators that treat composite key columns independently produce silent PK violations.

Read article
Test 6 min read

NULL Semantics Breaking Aggregate Seed Comparisons

NULL silently distorts COUNT, SUM, and AVG in aggregate seed assertions. Here's how to detect and fix it before it corru...

Read article

Browse by topic