(react-slider) - Adding accessibility tests

[czearing]

Pull request checklist

• Addresses an existing issue: Slider Convergence #18886
• Include a change request file using $ yarn change

Description of changes

Adding accessibility tests to the converged Slider component.

[fabricteam]

📊 Bundle size report

Unchanged fixtures

Package & Exports	Size (minified/GZIP)
react-slider Slider	30.621 kB 9.711 kB

_{🤖 This report was generated against 10495c31fb5c5cf48b4665601a75a0cfabb6a03c}

[codesandbox-ci]

This pull request is automatically built and testable in CodeSandbox.

To see build info of the built libraries, click here or the icon next to each commit SHA.

Latest deployment of this branch, based on commit 979dff0:

Sandbox	Source
Fluent UI React Starter	Configuration

[size-auditor]

Asset size changes

Size Auditor did not detect a change in bundle size for any component!

Baseline commit: 10495c31fb5c5cf48b4665601a75a0cfabb6a03c (build)

[fabricteam]

Perf Analysis (@fluentui/react)

Scenario	Render type	Master Ticks	PR Ticks	Iterations	Status
buttonNative	mount	107	119	5000	Possible regression

All results

Scenario	Render type	Master Ticks	PR Ticks	Iterations	Status
Avatar	mount	864	878	5000
BaseButton	mount	894	867	5000
Breadcrumb	mount	2637	2606	1000
ButtonNext	mount	425	425	5000
Checkbox	mount	1469	1553	5000
CheckboxBase	mount	1242	1248	5000
ChoiceGroup	mount	4685	4574	5000
ComboBox	mount	982	966	1000
CommandBar	mount	10149	10152	1000
ContextualMenu	mount	6578	6542	1000
DefaultButton	mount	1112	1164	5000
DetailsRow	mount	3627	3734	5000
DetailsRowFast	mount	3673	3660	5000
DetailsRowNoStyles	mount	3536	3506	5000
Dialog	mount	2416	2411	1000
DocumentCardTitle	mount	142	136	1000
Dropdown	mount	3184	3190	5000
FluentProviderNext	mount	7419	7429	5000
FluentProviderWithTheme	mount	348	334	10
FluentProviderWithTheme	virtual-rerender	77	94	10
FluentProviderWithTheme	virtual-rerender-with-unmount	474	469	10
FocusTrapZone	mount	1772	1835	5000
FocusZone	mount	1775	1751	5000
IconButton	mount	1747	1725	5000
Label	mount	333	334	5000
Layer	mount	3012	2993	5000
Link	mount	482	463	5000
MakeStyles	mount	1847	1851	50000
MenuButton	mount	1455	1469	5000
MessageBar	mount	1995	2055	5000
Nav	mount	3219	3186	1000
OverflowSet	mount	1117	1083	5000
Panel	mount	2331	2347	1000
Persona	mount	822	831	1000
Pivot	mount	1384	1383	1000
PrimaryButton	mount	1261	1254	5000
Rating	mount	7625	7640	5000
SearchBox	mount	1297	1331	5000
Shimmer	mount	2535	2472	5000
Slider	mount	1939	1907	5000
SpinButton	mount	4900	4944	5000
Spinner	mount	403	411	5000
SplitButton	mount	3088	3081	5000
Stack	mount	489	490	5000
StackWithIntrinsicChildren	mount	1518	1557	5000
StackWithTextChildren	mount	4510	4523	5000
SwatchColorPicker	mount	10109	10142	5000
Tabs	mount	1399	1413	1000
TagPicker	mount	2559	2536	5000
TeachingBubble	mount	13049	13102	5000
Text	mount	403	413	5000
TextField	mount	1361	1356	5000
ThemeProvider	mount	1180	1179	5000
ThemeProvider	virtual-rerender	618	609	5000
ThemeProvider	virtual-rerender-with-unmount	1880	1866	5000
Toggle	mount	794	807	5000
buttonNative	mount	107	119	5000	Possible regression

Perf Analysis (@fluentui/react-northstar)

Perf tests with no regressions

Scenario	Current PR Ticks	Baseline Ticks	Ratio
TreeWith60ListItems.default	185	169	1.09:1
AccordionMinimalPerf.default	156	145	1.08:1
RefMinimalPerf.default	256	240	1.07:1
DividerMinimalPerf.default	369	349	1.06:1
TextMinimalPerf.default	346	327	1.06:1
DialogMinimalPerf.default	778	741	1.05:1
CarouselMinimalPerf.default	465	448	1.04:1
ChatDuplicateMessagesPerf.default	302	290	1.04:1
HeaderSlotsPerf.default	760	732	1.04:1
MenuMinimalPerf.default	852	822	1.04:1
SkeletonMinimalPerf.default	358	345	1.04:1
TooltipMinimalPerf.default	1024	986	1.04:1
AnimationMinimalPerf.default	413	401	1.03:1
FlexMinimalPerf.default	278	269	1.03:1
FormMinimalPerf.default	403	392	1.03:1
GridMinimalPerf.default	331	321	1.03:1
ListNestedPerf.default	546	532	1.03:1
PortalMinimalPerf.default	182	176	1.03:1
SegmentMinimalPerf.default	343	334	1.03:1
BoxMinimalPerf.default	347	339	1.02:1
ButtonSlotsPerf.default	555	544	1.02:1
ImageMinimalPerf.default	370	362	1.02:1
LabelMinimalPerf.default	380	372	1.02:1
LayoutMinimalPerf.default	361	354	1.02:1
PopupMinimalPerf.default	591	577	1.02:1
TableManyItemsPerf.default	1872	1844	1.02:1
AttachmentSlotsPerf.default	1065	1053	1.01:1
ButtonMinimalPerf.default	175	174	1.01:1
CheckboxMinimalPerf.default	2714	2697	1.01:1
DropdownManyItemsPerf.default	675	671	1.01:1
EmbedMinimalPerf.default	4108	4079	1.01:1
ListCommonPerf.default	613	607	1.01:1
MenuButtonMinimalPerf.default	1615	1604	1.01:1
RadioGroupMinimalPerf.default	442	437	1.01:1
IconMinimalPerf.default	595	592	1.01:1
TextAreaMinimalPerf.default	490	487	1.01:1
AvatarMinimalPerf.default	190	190	1:1
ChatMinimalPerf.default	644	644	1:1
HeaderMinimalPerf.default	357	358	1:1
ItemLayoutMinimalPerf.default	1212	1217	1:1
ListWith60ListItems.default	644	643	1:1
ReactionMinimalPerf.default	369	370	1:1
SliderMinimalPerf.default	1556	1549	1:1
SplitButtonMinimalPerf.default	4062	4067	1:1
CustomToolbarPrototype.default	3859	3857	1:1
DatepickerMinimalPerf.default	5332	5364	0.99:1
DropdownMinimalPerf.default	3075	3112	0.99:1
InputMinimalPerf.default	1249	1266	0.99:1
ProviderMergeThemesPerf.default	1679	1701	0.99:1
StatusMinimalPerf.default	658	666	0.99:1
TableMinimalPerf.default	393	395	0.99:1
ToolbarMinimalPerf.default	909	921	0.99:1
TreeMinimalPerf.default	788	793	0.99:1
AlertMinimalPerf.default	263	268	0.98:1
ButtonOverridesMissPerf.default	1681	1713	0.98:1
ChatWithPopoverPerf.default	356	364	0.98:1
AttachmentMinimalPerf.default	145	150	0.97:1
ListMinimalPerf.default	487	503	0.97:1
LoaderMinimalPerf.default	668	687	0.97:1
ProviderMinimalPerf.default	995	1035	0.96:1
CardMinimalPerf.default	527	552	0.95:1
RosterPerf.default	1110	1169	0.95:1
VideoMinimalPerf.default	573	624	0.92:1