Special chars bindings unit tests

[Gjergj]

Description

Unit tests for #3476

Fixes # (issue)

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration using wails doctor.

• Windows
• macOS
• Linux

Test Configuration

Please paste the output of wails doctor. If you are unable to run this command, please describe your environment in as much detail as possible.

# Wails
Version | v2.8.1

# System
┌────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
| OS           | MacOS                                                                                                                       |
| Version      | 14.4.1                                                                                                                      |
| ID           | 23E224                                                                                                                      |
| Go Version   | go1.22.1                                                                                                                    |
| Platform     | darwin                                                                                                                      |
| Architecture | arm64                                                                                                                       |
| CPU          | Apple M1 Pro                                                                                                                |
| GPU          | Chipset Model: Apple M1 Pro Type: GPU Bus: Built-In Total Number of Cores: 14 Vendor: Apple (0x106b) Metal Support: Metal 3 |
| Memory       | 32GB                                                                                                                        |
└────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘

# Dependencies
┌───────────────────────────────────────────────────────────────────────┐
| Dependency                | Package Name | Status    | Version        |
| Xcode command line tools  | N/A          | Installed | 2406           |
| Nodejs                    | N/A          | Installed | 21.7.1         |
| npm                       | N/A          | Installed | 10.5.0         |
| *Xcode                    | N/A          | Installed | 15.3 (15E204a) |
| *upx                      | N/A          | Available |                |
| *nsis                     | N/A          | Available |                |
└─────────────────────── * - Optional Dependency ───────────────────────┘

# Diagnosis
Optional package(s) installation details:
  - upx : Available at https://upx.github.io/
  - nsis : More info at https://wails.io/docs/guides/windows-installer/

 SUCCESS  Your system is ready for Wails development!

 ♥   If Wails is useful to you or your company, please consider sponsoring the project:
https://github.com/sponsors/leaanthony

Checklist:

• I have updated website/src/pages/changelog.mdx with details of this PR
• My code follows the general coding style of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

[leaanthony]

Thanks 🙏 Please could you add an entry to the changelog located at website/src/pages/changelog.mdx?

[Gjergj]

Thanks 🙏 Please could you add an entry to the changelog located at website/src/pages/changelog.mdx?

Added