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;;; test-wrap-org-table.el --- ERT tests for wrap-org-table.el -*- lexical-binding: t; -*-
;;
;; Run from the repo root:
;; emacs --batch -q -L .ai/scripts -l ert \
;; -l .ai/scripts/tests/test-wrap-org-table.el \
;; -f ert-run-tests-batch-and-exit
;;
;; Covers the pure core (render width, tokenizing, cell wrap, column
;; allocation), the table reformat (exact-output cases at small budgets), and
;; the file layer.
(require 'ert)
(require 'cl-lib)
(defconst wot-test--dir
(file-name-directory (or load-file-name buffer-file-name default-directory))
"Directory of this test file, captured at load time.")
(add-to-list 'load-path (expand-file-name ".." wot-test--dir))
(require 'wrap-org-table)
;;; ---------------------------------------------------------------------------
;;; render width — links measure at their visible label
(ert-deftest wot-render-width-plain-text ()
(should (= (wot-render-width "hello") 5)))
(ert-deftest wot-render-width-empty ()
(should (= (wot-render-width "") 0)))
(ert-deftest wot-render-width-descriptive-link-counts-label-only ()
(should (= (wot-render-width "[[file:long-target-path.org][label]]") 5)))
(ert-deftest wot-render-width-bare-link-counts-target ()
(should (= (wot-render-width "[[file:x.org]]") 10)))
(ert-deftest wot-render-width-mixed-text-and-link ()
;; "see doc now" = 11
(should (= (wot-render-width "see [[file:a.org][doc]] now") 11)))
;;; ---------------------------------------------------------------------------
;;; tokenize — links are atomic tokens
(ert-deftest wot-tokenize-plain-words ()
(should (equal (wot-tokenize "a quick fox") '("a" "quick" "fox"))))
(ert-deftest wot-tokenize-link-is-one-token ()
(should (equal (wot-tokenize "see [[file:a.org][the doc]] now")
'("see" "[[file:a.org][the doc]]" "now"))))
(ert-deftest wot-tokenize-empty-string ()
(should (equal (wot-tokenize "") nil)))
;;; ---------------------------------------------------------------------------
;;; cell wrap
(ert-deftest wot-wrap-cell-fits-on-one-line ()
(should (equal (wot-wrap-cell "short text" 20) '("short text"))))
(ert-deftest wot-wrap-cell-wraps-at-word-boundary ()
(should (equal (wot-wrap-cell "The quick brown fox jumps over the lazy dog" 28)
'("The quick brown fox jumps" "over the lazy dog"))))
(ert-deftest wot-wrap-cell-empty-cell ()
(should (equal (wot-wrap-cell "" 10) '(""))))
(ert-deftest wot-wrap-cell-overlong-token-sits-alone-unsplit ()
(should (equal (wot-wrap-cell "tiny incomprehensibilities end" 10)
'("tiny" "incomprehensibilities" "end"))))
(ert-deftest wot-wrap-cell-link-never-split ()
;; label is 17 chars, wider than the 10 budget — the link stays whole
(should (equal (wot-wrap-cell "[[file:a.org][a very wide label x]]" 10)
'("[[file:a.org][a very wide label x]]"))))
;;; ---------------------------------------------------------------------------
;;; column allocation
(ert-deftest wot-allocate-widths-fits-naturally ()
;; cells total 1+1, overhead 3*2+1=7 → 9 ≤ 30: keep natural widths
(should (equal (wot-allocate-widths '(("A" "B") ("1" "2")) 30) '(1 1))))
(ert-deftest wot-allocate-widths-shrinks-widest-column ()
;; naturals 5 + 44, overhead 7 → 56 > 40; Notes shrinks to 28, floor 5
(should (equal (wot-allocate-widths
'(("Name" "Notes")
("alpha" "The quick brown fox jumps over the lazy dog"))
40)
'(5 28))))
(ert-deftest wot-allocate-widths-respects-token-floor ()
;; the long token (21) floors column 2 even when the budget wants less
(should (equal (wot-allocate-widths
'(("A" "B") ("x" "incomprehensibilities yes"))
20)
'(1 21))))
;;; ---------------------------------------------------------------------------
;;; table reformat — exact output
(defconst wot-test--wide-input
"| Name | Notes |
|------+-------|
| alpha | The quick brown fox jumps over the lazy dog |
")
(defconst wot-test--wide-expected
"| Name | Notes |
|-------+------------------------------|
| alpha | The quick brown fox jumps |
| | over the lazy dog |
|-------+------------------------------|
")
(ert-deftest wot-reformat-wraps-wide-cell-with-continuation-rows ()
(should (equal (wot-reformat-table-string wot-test--wide-input 40)
wot-test--wide-expected)))
(ert-deftest wot-reformat-narrow-table-gains-rules-between-rows ()
(should (equal (wot-reformat-table-string
"| A | B |
|---+---|
| 1 | 2 |
| 3 | 4 |
" 120)
"| A | B |
|---+---|
| 1 | 2 |
|---+---|
| 3 | 4 |
|---+---|
")))
(ert-deftest wot-reformat-is-idempotent ()
(let ((once (wot-reformat-table-string wot-test--wide-input 40)))
(should (equal (wot-reformat-table-string once 40) once))))
(ert-deftest wot-reformat-preserves-link-source-verbatim ()
(let ((out (wot-reformat-table-string
"| Doc | Notes |
|-----+-------|
| [[file:very-long-target-path.org][d1]] | ok |
" 120)))
(should (string-match-p
(regexp-quote "[[file:very-long-target-path.org][d1]]") out))))
(ert-deftest wot-reformat-headerless-table-rules-every-row ()
(should (equal (wot-reformat-table-string
"| 1 | 2 |
| 3 | 4 |
" 120)
"| 1 | 2 |
|---+---|
| 3 | 4 |
|---+---|
")))
(ert-deftest wot-reformat-preserves-indentation ()
(should (equal (wot-reformat-table-string
" | A | B |
|---+---|
| 1 | 2 |
" 120)
" | A | B |
|---+---|
| 1 | 2 |
|---+---|
")))
;;; ---------------------------------------------------------------------------
;;; file layer
(ert-deftest wot-process-file-reformats-tables-in-place ()
(let ((file (make-temp-file "wot-test" nil ".org")))
(unwind-protect
(progn
(with-temp-file file
(insert "* Heading\n\nProse before.\n\n"
wot-test--wide-input
"\nProse after.\n"))
(wot-process-file file 40)
(let ((content (with-temp-buffer
(insert-file-contents file)
(buffer-string))))
(should (string-match-p (regexp-quote wot-test--wide-expected) content))
(should (string-match-p "Prose before\\." content))
(should (string-match-p "Prose after\\." content))))
(delete-file file))))
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