[Uno.Core] ValidationHelper.IsEmail returns valid for [email protected] while it's not.

[alexvlaar]

Current behavior

[email protected] is returned as valid by the validation helper.
Method documentation indicates it should validate minimum format of [email protected]

Expected behavior

[email protected] is returned as invalid

How to reproduce it (as minimally and precisely as possible)

var isValid = ValidationHelper.IsEmail("[email protected]");

Environment

Nuget Package:

Package Version(s): 1.29.0-dev.93

Affected platform(s):
Probably all.

• iOS
• Android
• WebAssembly
• WebAssembly renderers for Xamarin.Forms
• Windows
• Build tasks
• Solution Templates

Visual Studio:

• 2017 (version: )
• 2019 (version: )
• for Mac (version: )

Relevant plugins:

• Resharper (version: )

Anything else we need to know?

[jeromelaban]

Looks like we're missing unit tests for this:

Uno.Core/src/Uno.Core/Validation/ValidationHelper.cs

Line 284 in ab0253a

@"\A(?:[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?)\Z",

Those should help: #62

@alexvlaar could you add you test in this branch ?