Originally designed as a server for Rubinius, Puma also works well with Ruby (MRI) and JRuby. On MRI, there is a Global VM Lock (GVL) that ensures only one thread can run Ruby code at a time. But if ...

:TestClass In a test file runs the first test class found on the same line as or above the cursor. (Currently only supported by Pytest) :TestFile In a test file runs all tests in the current file, ...

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