Add C unit tests

What is the new feature

Add unit tests for C functions

How is it implemented

Use Googletest to implement missing unit tests in #6 (closed)

Mandatory steps before review

• Gitlab CI passes (Hint: use make format for linting)
• New feature is covered by additional unit tests
• Mark the merge request as ready by removing Draft:

Mandatory steps before merge

• Test coverage does not decrease
• Reviewed by a maintainer
• Incorporate review suggestions
• Remember to edit the commit message and select the proper changelog category (feature/bugfix/other)

You are not supposed to merge this request by yourself, the maintainers of fortan-support take care of this action!

assigned to @b382190

added 1 commit

• 08de6257 - Add stride tests

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added 1 commit

• fcbbf37b - Remove unnecessary headers

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changed the description

added 1 commit

• 540c9120 - Add string parse tests

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added test label

added 5 commits

• 6c915746 - 1 commit from branch master
• 09738c84 - Add tests for arithmetic expression parsing
• 23ff1905 - Add stride tests
• 3ea177f2 - Remove unnecessary headers
• 50c32dc3 - Add string parse tests

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changed the description

added 6 commits

• 50c32dc3...a265cfff - 2 commits from branch master
• cbe038e4 - Add tests for arithmetic expression parsing
• b704230f - Add stride tests
• 7630570f - Remove unnecessary headers
• 315c62e1 - Add string parse tests

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added 1 commit

• 2bf619db - Add unit tests for system functions

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added 7 commits

• 2bf619db...6653fbbc - 2 commits from branch master
• f6c000f2 - Add tests for arithmetic expression parsing
• bcfd0adf - Add stride tests
• a216a59e - Remove unnecessary headers
• 2d8bc330 - Add string parse tests
• 7ca8f3b0 - Add unit tests for system functions

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added 1 commit

• f2e0ae18 - Complete stride test

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added 7 commits

• 38d6c949 - 1 commit from branch master
• 4e1695ba - Add tests for arithmetic expression parsing
• 14c7bd73 - Add stride tests
• 66bb8aa0 - Remove unnecessary headers
• 34662551 - Add string parse tests
• 72b9679b - Add unit tests for system functions
• 5704b258 - Complete stride test

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marked this merge request as ready

marked the checklist item Gitlab CI passes (Hint: use make format for linting) as completed

marked the checklist item New feature is covered by additional unit tests as completed

marked the checklist item Mark the merge request as ready by removing Draft: as completed

changed the description

added ready for review label

requested review from @b382190