Add unit tests for wallet address truncation helper

[Chucks1093]

Summary

The wallet address truncation helper (first 4 + last 4 characters with ellipsis) is used in the header and on profile pages but has no unit tests. Tests should cover standard addresses, edge cases, and the full address passthrough when the address is shorter than the truncation threshold.

Scope

• Test a standard 56-character Stellar address returns GABCD...WXYZ format
• Test an address shorter than 8 characters is returned as-is without truncation
• Test an empty string input returns an empty string
• Test the separator character is … (ellipsis) not three dots

Acceptance Criteria

• Standard address truncated to first 4 + last 4 with ellipsis
• Short address returned as-is
• Empty string handled without error
• Separator is a single ellipsis character

ETA: 12 hours

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Coordinate on Telegram

[ayandipe]

@ayandipe has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hi Maintainer, Kindly assign issue to me for prompt resolution.
Thanks and regards.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @ayandipe to this issue.

[tecch-wiz]

@tecch-wiz has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

I’m interested in tackling this! I have a strong background in smart contract development and full-stack systems, so I'm well-equipped to handle the requirements here. Could you please assign this to me?

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[Emeka-12]

@Emeka-12 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Please, I will love to work on this issue

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[drips-wave]

Congratulations, @tecch-wiz! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on July 30, 2026.

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