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Diffstat (limited to 'tests/run-coverage-file.el')
| -rw-r--r-- | tests/run-coverage-file.el | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/tests/run-coverage-file.el b/tests/run-coverage-file.el new file mode 100644 index 000000000..eeae5de9d --- /dev/null +++ b/tests/run-coverage-file.el @@ -0,0 +1,40 @@ +;;; run-coverage-file.el --- Undercover setup for per-file coverage runs -*- lexical-binding: t; -*- + +;;; Commentary: +;; Loaded via `-l tests/run-coverage-file.el' by the Makefile's coverage +;; target before each test file runs. Ensures undercover is active and +;; configured to merge into the shared LCOV output so coverage data +;; accumulates across all test-file invocations. +;; +;; Per-file isolation matches the project's `make test-unit' pattern: +;; each test file runs in its own Emacs process, so tests that work +;; under `make test' will also work under `make coverage'. See +;; docs/design/coverage.org for the rationale. + +;;; Code: + +(require 'package) +(setq package-user-dir (expand-file-name "elpa" user-emacs-directory)) +(package-initialize) + +(unless (require 'undercover nil t) + (message "") + (message "ERROR: undercover not installed.") + (message "Start Emacs interactively to install it via use-package,") + (message "or run: emacs --batch --eval \"(progn (package-refresh-contents) (package-install 'undercover))\"") + (message "") + (kill-emacs 1)) + +;; Force coverage collection even when not in CI. Must happen AFTER +;; `(require 'undercover)' because undercover.el's top-level +;; `(setq undercover-force-coverage (getenv "UNDERCOVER_FORCE"))' +;; would otherwise overwrite our value. +(setq undercover-force-coverage t) + +(undercover "modules/*.el" + (:report-format 'simplecov) + (:report-file ".coverage/simplecov.json") + (:merge-report t) + (:send-report nil)) + +;;; run-coverage-file.el ends here |