fix: add --roots flag to Jest to include test file directories#1212
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Some projects configure Jest with restricted roots (e.g., roots: ["<rootDir>/src"]) which prevents Jest from finding tests written to other directories like "test/". Even with --runTestsByPath, Jest validates that files exist within the configured roots. This fix adds the --roots flag to explicitly include the directories containing the test files being run, ensuring Jest can find and execute them regardless of the project's roots configuration. Fixes issue where "No tests found" error occurs on projects with custom Jest roots configuration.
Add unit tests to verify that the --roots flag is properly added to Jest commands for all three runner functions: behavioral, benchmarking, and line profiling.
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Summary
--rootsflag to Jest commands to include directories containing test filesroots: ["<rootDir>/src"])Problem
Some TypeScript/JavaScript projects configure Jest with
roots: ["<rootDir>/src"]which excludes thetest/directory where codeflash writes generated tests. Even with--runTestsByPath, Jest validates that files exist within the configured roots, resulting in "No tests found" errors.Solution
When running Jest with
--runTestsByPath, also add--rootsflags for each directory containing test files. This explicitly tells Jest to include those directories in its root paths, bypassing the project's restrictive configuration.Test plan
roots: ["<rootDir>/src"]Jest configtest/directory🤖 Generated with Claude Code