CLI, Sharding, and Parallel Runs
Use the Playwright command line to run the right slice of tests at the right speed.
What you'll learn
- Run targeted commands instead of the whole suite every time.
- Understand parallel workers and test sharding.
- Choose speed-ups that still keep failures easy to read.
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CLI, Sharding, and Parallel Runs
Use the Playwright command line to run the right slice of tests at the right speed.
Big Picture
One small picture can make this idea easier to hold.
One big run
- Simple, but slow. Good for small suites. Painful when the test count grows.
Parallel and sharded runs
- Faster feedback by splitting work across workers or machines.
VerdictUse the Playwright command line to run the right slice of tests at the right speed.
How It Moves
Short steps make the flow easier to see.
Learn the idea
Read the key rule.
Try one example
Use a small real case.
Check the result
See what should happen.
Repeat with care
Try one more case.
Step By Step
This is the same idea, stretched across time.
- 1
Start small
Read one simple example.
- 2
Apply the idea
Use it on one real case.
- 3
Check the result
See what changed.
- 4
Keep the lesson
Use it again next time.
One Small Model
Think of this like a tiny card you can keep in your pocket.
Lesson card
4 fieldsQuick Check
What does sharding do?
Map It
One more picture helps you see where this lesson matters most.
Where this helps
Simple use
One easy case
Best fit
Common day-to-day QA work
Edge case
A tricky path
High risk
A bug that hurts users