fix: add --roots flag to Jest to include test file directories

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.

Author: misrasaurabh1

codeflash/languages/javascript/test_runner.py

@@ -257,7 +257,14 @@ def run_jest_behavioral_tests(
 
     if test_files:
         jest_cmd.append("--runTestsByPath")
-        jest_cmd.extend(str(Path(f).resolve()) for f in test_files)
+        resolved_test_files = [str(Path(f).resolve()) for f in test_files]
+        jest_cmd.extend(resolved_test_files)
+        # Add --roots to include directories containing test files
+        # This is needed because some projects configure Jest with restricted roots
+        # (e.g., roots: ["<rootDir>/src"]) which excludes the test directory
+        test_dirs = {str(Path(f).resolve().parent) for f in test_files}
+        for test_dir in sorted(test_dirs):
+            jest_cmd.extend(["--roots", test_dir])
 
     if timeout:
         jest_cmd.append(f"--testTimeout={timeout * 1000}")  # Jest uses milliseconds
@@ -467,7 +474,12 @@ def run_jest_benchmarking_tests(
 
     if test_files:
         jest_cmd.append("--runTestsByPath")
-        jest_cmd.extend(str(Path(f).resolve()) for f in test_files)
+        resolved_test_files = [str(Path(f).resolve()) for f in test_files]
+        jest_cmd.extend(resolved_test_files)
+        # Add --roots to include directories containing test files
+        test_dirs = {str(Path(f).resolve().parent) for f in test_files}
+        for test_dir in sorted(test_dirs):
+            jest_cmd.extend(["--roots", test_dir])
 
     if timeout:
         jest_cmd.append(f"--testTimeout={timeout * 1000}")
@@ -596,7 +608,12 @@ def run_jest_line_profile_tests(
 
     if test_files:
         jest_cmd.append("--runTestsByPath")
-        jest_cmd.extend(str(Path(f).resolve()) for f in test_files)
+        resolved_test_files = [str(Path(f).resolve()) for f in test_files]
+        jest_cmd.extend(resolved_test_files)
+        # Add --roots to include directories containing test files
+        test_dirs = {str(Path(f).resolve().parent) for f in test_files}
+        for test_dir in sorted(test_dirs):
+            jest_cmd.extend(["--roots", test_dir])
 
     if timeout:
         jest_cmd.append(f"--testTimeout={timeout * 1000}")