Unit tests added

[lloc]

• Unit Tests added
• Some refactoring to get PHPStan level raised to 10

[gemini-code-assist]

Summary of Changes

Hello @lloc, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request significantly enhances the project's code quality and reliability by integrating a suite of new unit tests for various commands. Concurrently, it elevates the static analysis standard to PHPStan level 10, ensuring more robust and type-safe code. These changes collectively aim to improve maintainability and reduce potential bugs by catching issues earlier in the development cycle.

Highlights

• Comprehensive Unit Testing: New unit tests have been introduced for CreatePoCommand, MakeJsonCommand, MakeMoCommand, MakePhpCommand, and UpdatePoCommand. The existing MakePotCommandTest has also been refactored to utilize mocked dependencies, significantly improving test coverage and reliability across the command suite.
• PHPStan Level Upgrade: The static analysis level in phpstan.neon.dist has been increased from 8 to 10. This change enforces stricter code quality standards and promotes better type safety throughout the codebase.
• Code Refinements for Robustness: Minor refactorings were implemented in CreatePoCommand, CustomCommand, and ShellRunner to enhance type safety and ensure proper variable initialization. These adjustments align the code with the higher static analysis requirements and improve overall code robustness.
• Enhanced PHPUnit Configuration: The phpunit.xml.dist configuration has been updated to leverage modern PHPUnit settings, including a dedicated cache directory, stricter checks for coverage metadata and output during tests, and explicit inclusion of the src directory for more accurate coverage analysis.

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[gemini-code-assist]

Code Review

The pull request introduces unit tests and refactors the code to improve PHPStan level. The changes include adding test files for several commands, modifying .gitignore and phpunit.xml.dist, and adjusting code in CreatePoCommand.php, CustomCommand.php, and ShellRunner.php. The refactoring primarily focuses on type hinting and nullability to enhance code quality and static analysis.

[gemini-code-assist]

Changing the type hints from nullable to non-nullable is a good step towards stricter type checking. However, the exec function relies on the exec PHP function, which might not always populate the $output and $result_code variables, especially in error scenarios. If the underlying exec function fails, these variables might remain uninitialized, leading to unexpected behavior in the calling code.

Consider adding error handling to check if $output and $result_code are properly populated by the exec call and throw an exception or return an error code if they are not.

[gemini-code-assist]

Initializing $output_lines and $exit_code before calling $this->runner->exec is good for ensuring they have default values. However, these variables are passed by reference to the exec method. If exec fails to populate these variables, the code might proceed with potentially incorrect or uninitialized data. It would be safer to check if these variables are populated after the exec call and handle the error if they are not.

Consider adding a check after the exec call to ensure $output_lines and $exit_code are properly populated.

[gemini-code-assist]

The condition empty( $locale ) || ! is_string( $locale ) can be simplified by using ! is_string( $locale ) alone. empty already checks for null, '', false, 0, 0.0, '0', [], so the additional empty check is redundant and makes the code less readable.

Consider removing the empty check.

if ( ! is_string( $locale ) ) {
            $locale = self::DEFAULT_LANGUAGE;
        }

[gemini-code-assist]

The $command variable is being reassigned with a new instance of MakePotCommand inside the setUp method. This is unnecessary because the $command variable is only used within the setUp method and doesn't need to be stored as a class property. This reassignment can be removed to simplify the code and reduce memory usage.

Consider removing the reassignment of the $command variable in the setUp method.

        $runner = $this->createMock(ShellRunner::class);
        $runner->method('exec')
            ->willReturnCallback(function ($cmd, &$output, &$exitCode) {
                $output = ['Mocked .pot generation'];
                $exitCode = 0;
            });

        $this->application = new Application();
        $this->application->setAutoExit(false); // Important for tests
        $this->application->add(new MakePotCommand($runner));