# Testing `deft/stdext/testing` is the programmatic test toolkit behind the editor's Ctrl-T, AI "Generate Test", and the Tests panel. It discovers test files, creates skeletons, and runs suites in-process through a child runtime (no subprocess, no stdout parsing required).

import "deft/stdext/testing" as testing

## API | Def | Signature | Description | |---|---|---| | `stem-of` | `{| path |}` | Basename with a trailing `.dft` stripped | | `test-path-for` | `{| src-path |}` | `<dir>/<base>.dft` → `<dir>/test/test_<base>.dft` | | `source-path-for` | `{| test-path |}` | Inverse mapping; nil when the basename lacks `test_` | | `import-path-for` | `{| src-path |}` | Project-root-relative import path, no `.dft` | | `ensure-skeleton!` | `{| src-path |}` | Create `test/` + a skeleton `defsuite` file; returns the test path | | `suite-names` | `{| source-text |}` | `defsuite` names extracted from source | | `run-all` | `{| test-path |}` | Run every suite in a fresh child runtime | | `run-only` | `{| test-path filter |}` | Filtered run | | `parse-results` | `{| stdout |}` | Parse `deft test` CLI stdout into `%{ statuses msgs summary }` | The convention is `<dir>/<base>.dft` ↔ `<dir>/test/test_<base>.dft`. ## Result Shape `run-all` / `run-only` return a structured map: | Key | Value | |---|---| | `statuses` | `%{ "<suite>::<name>" :pass/:fail }` | | `msgs` | failure messages keyed the same way | | `summary` | `"N tests, P passed, F failed"` | | `passed` / `failed` / `total` | counts | | `status` | 1 when anything failed | | `stdout` / `stderr` | rendered output lines | | `results` | raw `test/results` vector | ## Example

# Editor Ctrl-T: open or create the test file
def test-file [testing/test-path-for "src/parser.dft"]
set skeleton  [testing/ensure-skeleton! "src/parser.dft"]

# Tests panel: run and inspect
set res [testing/run-all $test-file]
echo $res~summary
echo [get $res~statuses "parser::parses refs"]

set one [testing/run-only $test-file "parser::parses refs"]

## See Also - Testing (manual) — `defsuite` / `deftest` / `assert/*` authoring - Tests app help — the panel UI - CLI — the `deft test` command