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Diffstat (limited to 'tests/test-system-lib--ensure-marginalia-align.el')
| -rw-r--r-- | tests/test-system-lib--ensure-marginalia-align.el | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/tests/test-system-lib--ensure-marginalia-align.el b/tests/test-system-lib--ensure-marginalia-align.el new file mode 100644 index 00000000..33ff2ba2 --- /dev/null +++ b/tests/test-system-lib--ensure-marginalia-align.el @@ -0,0 +1,57 @@ +;;; test-system-lib--ensure-marginalia-align.el --- Tests for marginalia category registration -*- coding: utf-8; lexical-binding: t; -*- +;; +;; Author: Craig Jennings <c@cjennings.net> +;; +;;; Commentary: +;; Custom completion categories (cj-music-file, cj-radio-station, and every +;; category passed to the system-lib table helpers) bypass marginalia, so +;; their annotations never get its right-alignment even with marginalia-align +;; set. The registration helper adds a builtin entry per category so the +;; table's own annotation function renders through marginalia's aligned field. + +;;; Code: + +(require 'ert) + +;; The module's bare defvar marks this special only file-locally; declare it +;; here too so `let' binds dynamically (the scope-shadowing trap). +(defvar marginalia-annotator-registry) + +(require 'system-lib) + +;;; Normal Cases + +(ert-deftest test-system-lib-ensure-marginalia-align-registers-category () + "Normal: an unregistered category gains a builtin registry entry." + (let ((marginalia-annotator-registry '((file some-annotator builtin none)))) + (cj/completion-ensure-marginalia-align 'cj-test-category) + (should (equal (assq 'cj-test-category marginalia-annotator-registry) + '(cj-test-category builtin none))))) + +(ert-deftest test-system-lib-ensure-marginalia-align-idempotent () + "Normal: registering the same category twice leaves one entry." + (let ((marginalia-annotator-registry '())) + (cj/completion-ensure-marginalia-align 'cj-test-category) + (cj/completion-ensure-marginalia-align 'cj-test-category) + (should (= 1 (length marginalia-annotator-registry))))) + +;;; Boundary Cases + +(ert-deftest test-system-lib-ensure-marginalia-align-preserves-existing-entry () + "Boundary: a category with an existing (possibly custom) entry is untouched." + (let ((marginalia-annotator-registry '((cj-test-category my-custom-annotator)))) + (cj/completion-ensure-marginalia-align 'cj-test-category) + (should (equal (assq 'cj-test-category marginalia-annotator-registry) + '(cj-test-category my-custom-annotator))))) + +;;; Error Cases + +(ert-deftest test-system-lib-ensure-marginalia-align-marginalia-absent-noop () + "Error: without marginalia loaded (registry void) the helper is a silent +no-op -- annotations just stay unaligned, nothing breaks." + ;; marginalia is not loadable in the batch environment, so the global + ;; registry is genuinely void outside the `let's above. + (should-not (cj/completion-ensure-marginalia-align 'cj-test-category))) + +(provide 'test-system-lib--ensure-marginalia-align) +;;; test-system-lib--ensure-marginalia-align.el ends here |