VALIDATION LAB•SLIDER INTERACTION LAB

Slider Interaction Lab

Intermediate

Exercise slider changes through drag, track click, keyboard arrows, and direct numeric input while comparing visual, displayed, and submitted values.

Test instructions

Drag the slider to 50 and compare current, percentage, and submitted values

Do this: Drag the slider to 50 and compare current, percentage, and submitted valuesExpected: The lab logs low-level slider events and highlights intentional mismatches in green or red so QA can practice detecting interaction bugs.

Live test area · interact here

Slider Interaction Lab

QA-focused range control

Exercise drag, track click, keyboard arrows, and direct input. The lab intentionally exposes mismatches between visual state, displayed value, and submitted value.

Test slider

Direct input

Error: displayed, visual, or submitted values disagree.

Current value

26 / 100

Percentage

26%

Last interaction

none

Submitted value

Event log

No slider events yet.

QA scenarios

Set value to 50 using drag · expected submitted value: 50

Set value to 75 using keyboard · expected submitted value: 75

Click random position and verify value · expected submitted value: 25

Intentional bug switches

Drag updates UI but submitted value stays oldMove the thumb with the mouse and compare visual vs submitted values.Click sets an incorrect valueClick the track near a known target and watch for an offset.Keyboard arrows do not update sliderFocus the slider and press ArrowRight or ArrowLeft.Value display is off by 1Compare the display panel with the native slider value.

Interact with the widget aboveStatus updates as you test

Understand the behavior

Manual test guide

Test it before writing code

Practice manually, then automate what you just tested.

Related practice

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Slider Interaction Lab

Manual test guide

Drag the slider to 50 and compare current, percentage, and submitted values

Focus the slider and use ArrowRight/ArrowLeft until it reaches 75

Click a random track position and verify the resulting value is truthful

Review the event log for mousedown, mousemove, mouseup, input, and change

Toggle each intentional bug and confirm the feedback panel changes between success and error

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