- Create Prolog integration tests in src/tests/custom_toplevel.pl
- Add CLI test configuration in tests/scryer/cli/src_tests/custom_toplevel_tests.toml
- Tests verify:
* -t halt terminates after initialization
* Custom toplevels can be user-defined predicates
* Toplevel receives control after initialization completes
* Default behavior is REPL when no -t specified
- All tests pass successfully
Following TESTING_GUIDE.md three-layer testing approach:
- Layer 2: Prolog integration tests with test_framework
- Layer 3: CLI snapshot tests with .toml configuration
Co-Authored-By: J.J.'s Robot <noreply@example.com>
- Add -t FLAG to specify custom toplevel (arity 0 predicate)
- Default toplevel is 'repl' if -t is not specified
- Using `-t halt` achieves original goal of guaranteed termination
- Custom toplevels enable flexible exit strategies (e.g., server mode)
- Update help text to document -t flag
Examples:
scryer-prolog -t halt program.pl # Exits after execution
scryer-prolog -t my_repl program.pl # Custom REPL
scryer-prolog program.pl # Default REPL
Co-Authored-By: J.J.'s Robot <noreply@example.com>
