Add tests for language detection functionality in tests/

[chigwell]

User Story

As a developer, I would like to add comprehensive tests for the language detection functionality in the tests/ files, so that potential issues can be caught before release and the accuracy of language detection can be verified in various scenarios.

Background

Currently, there are no specific tests for the language detection functionality in the tests/ files. This can lead to potential issues not being caught before release, which can negatively impact the overall functionality and reliability of the system.

Acceptance Criteria

• Write tests for the language detection functionality in the tests/ files.
• Verify that the language detection algorithm correctly identifies the language of a given text in various scenarios.
• Ensure that the tests cover a wide range of possible inputs, including different languages, text lengths, and character sets.
• Verify that the language detection algorithm is able to accurately detect the language of a text even when it contains errors, such as misspellings or incorrect punctuation.
• Ensure that the tests are comprehensive, reliable, and easy to maintain.
• Verify that the tests are integrated into the existing test suite and run successfully without any errors.

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