Test local functions

[DustinCampbell]

No description provided.

[balajikris]

References:

1. Design notes, discussions and more links at C# Design Notes for May 20, 2015 #3911
2. Test plan template at Discussion: IDE Test Plan for New Language Features #8389 Test ref locals & ref returns against IDE features #8350
3. Spec

[balajikris]

Testing tags

✅ = Tested & Approved (possibly with linked bugs)
❌ = Merge blocking
🚧 = Non-blocking bugs
🆗 = Issue has been fixed
🆓 = No expected impact
❓ = Open question
❔ = Answered question

¹ Feature updated by compiler team, with appropriate unit tests.
² Feature requires more complete testing by IDE team. (?)

Internal Dogfooding Requirements (Merge Signoff)

Critical IDE features in the areas of Typing, Navigating, and Viewing must function as expected. Any non-trivial issues in these areas blocking language feature merging.
All feature descriptions and testing suggestions are merely examples. Each language feature should be carefully considered independently against each IDE feature to find interesting intersections

Category	Feature/Description	C# Signoff/Notes	VB Signoff/Notes
Enable/Disable	Feature Flag Completely enables/disables the feature in the compiler & IDE
Typing	General Typing - Type and paste new constructs - Nothing interferes with verbatim typing	✅
	Completion - Typing new keyword/construct names - Dotting off of new constructs	✅ 8617, 8616
	Formatting - Spacing in and around new constructs - Spacing options - Format Document command	✅
	Automatic Brace Completion (C# only) - Auto-insert close brace - Shift+Enter commit of pending brace completion	✅
	Indentation - Typing Enter in an unfinished statement indents the next line	✅
Navigating	Go To Definition - F12 from callsites to definition	✅
	Go To Implementation - Jump from virtual members to their implementations - Jump from inheritable types to their implementations	✅
	Find All References - Lists references to a symbol in "Find Symbol Results" window - Shows results in hierarchy grouped by definition	✅
Viewing	Colorization - Keywords, literals, and identifiers colored appropriately in code	✅
	Error Squiggles - Squiggles appear as expected on reasonable spans	todo: file bugs bad squiggles with unsupported modifiers

IDE Features (Feature Signoff)

For the remaining set of IDE features, only crashes and asserts are considered blocking. However, all issues discovered must be filed and linked here.
All feature descriptions and testing suggestions are merely examples. Each language feature should be carefully considered independently against each IDE feature to find interesting intersections

Code Transformations

Category	Feature/Description	C# Signoff/Notes	VB Signoff/Notes
Refactoring with UI	Inline Rename (with UI) - Dashboard shows correct information - Highlighted spans are updated appropriately - Rename operation updates the correct set of symbols
	Change Signature (with UI) - Updates all direct & cascaded definitions/callsites - Shows appropriate signature & parameter previews in UI
	Extract Interface (with UI) - Generated Interface has expected shape - UI shows appropriate method previews	🆓
	Generate Type (with UI) - Dialog gives all valid options	🆓
Refactorings	Rename Tracking - Tracking span tracks & dismisses as expected
	Extract Method - Extracted method has the expected signature - All arguments/return values handled correctly - Extracted code block is reasonable
	Introduce Variable - Introduced variable has the expected signature and initializer expression - "Introduce for All" correctly finds dupes
	Inline Temporary Variable - Inlined values are appropriately expanded/reduced
	Organize Usings - Honors "Place 'System' namespace first" option
	Convert "Get" Methods to Properties* Add Description
	Encapsulate Field Add Description
Fixes	Add Using - Triggers on appropriate constructs
	Generate Local Add Description
	Generate Field Add Description
	Generate Method/Constructor - Generated method has the expected signature and accessibility
	Generate Constructor from members - Select fields/properties to generate a constructor accepting corresponding arguments - Generated constructor has the expected signature and accessibility
	Implement Interface - Only missing methods added - All added methods have the expected signature and accessibility
	Implement IDisposable Add Description
	Implement Abstract Class Add Description
Code Gen	Snippets Add Description
	Event Hookup on Tab (C# only) - Type "+=" after an event name and QuickInfo shows - Invoking should pick good name & launch Inline Rename		N/A
	End Construct Generation (VB only) Add Description	N/A
	Automatic End Construct Update (VB only) Add Description	N/A

IDE Features

Feature/Description	C# Signoff/Notes	VB Signoff/Notes
Signature Help - Overloads shown with appropriate, colorized signature
Quick Info - Hover on identifiers - On completion list items
Outlining Add Description
Brace Matching (C# only) Add Description		N/A
Highlight References Add Description
Peek Add Description
Navigation Bars Add Description
Metadata As Source Add Description
Navigate To Add Description
Go to Next/Previous Method Add Description
Solution Explorer Pivots Add Description
Call Hierarchy Add Description
Code Lens Add Description
Project System Add Description
Debugger IntelliSense Add Description
Code Model / Class Designer Add Description
Object Browser / Class View Add Description
Lightbulb Add Description
Line Separators Add Description
Options Add Description

Project System & External Integration

(Any changes to the runtime will require much more testing in this category)
All feature descriptions and testing suggestions are merely examples. Each language feature should be carefully considered independently against each IDE feature to find interesting intersections

Category	Integration	Signoff/Notes
Projection Buffers	Razor - Verify expression and block contexts - Test on projection boundaries - Emphasis on rename and formatting
	Venus - Verify expression and block contexts - Test on projection boundaries - Emphasis on rename and formatting
Designers	WPF - Event generation from designer to code - Designer consumption of new types of members - Cross language features (GTD, FAR)
	WinForms Add Description
Project System Interactions	.NET Core "Console Application (Package)" Add Description
	Linked Files (all flavors) Add Description

Interaction with other new language features

Verify IDE handling of the new language feature in conjunction with other new/unreleased language features

Feature	C# Signoff/Notes	VB Signoff/Notes
<New Language Feature 1>
<New Language Feature 2>

New Feature Suggestions

What refactorings, fixes, code transformations, or other in-editor experiences would enhance this language feature?

Feature Name	Description
?	?

[balajikris]

Initial testing done for 2.0 (Preview). Want to do some work post-preview in determining New feature suggestions. Moving to 2.0 (RC)