de6f56637b
Measure every rendered line when a column determines its natural width so a narrower first Grid line cannot cause later lines to overflow after stack padding.\n\nVerified with make check; core 545/545 and Grid 11/11 passed.
171 lines
6.9 KiB
EmacsLisp
171 lines
6.9 KiB
EmacsLisp
;;; ebox-grid-tests.el --- Ebox grid layout tests -*- lexical-binding: t; -*-
|
|
|
|
(require 'ert)
|
|
(require 'seq)
|
|
|
|
(load-file (expand-file-name "../ebox.el"
|
|
(file-name-directory (or load-file-name
|
|
buffer-file-name))))
|
|
|
|
(defun ebox-grid-test--plain (node)
|
|
"Render NODE and remove text properties."
|
|
(substring-no-properties (ebox-render node)))
|
|
|
|
(ert-deftest ebox-grid-renders-row-major-cells ()
|
|
"Grid should place unpositioned children in row-major order."
|
|
(let ((plain
|
|
(ebox-grid-test--plain
|
|
(ebox-grid
|
|
:grid-template-columns '((20) (20))
|
|
:grid-template-rows '(1 1)
|
|
:gap '(0 (1))
|
|
(ebox-create :content "A")
|
|
(ebox-create :content "B")
|
|
(ebox-create :content "C")
|
|
(ebox-create :content "D")))))
|
|
(should (string-match-p "A.*B" plain))
|
|
(should (string-match-p "C.*D" plain))))
|
|
|
|
(ert-deftest ebox-grid-supports-fractional-columns ()
|
|
"Fractional tracks should fill a definite grid width."
|
|
(let* ((node (ebox-grid
|
|
:width '(120)
|
|
:grid-template-columns '(1fr 2fr)
|
|
(ebox-create :content "A")
|
|
(ebox-create :content "B")))
|
|
(lines (ebox-string-lines (ebox-render node))))
|
|
(should (= (length lines) 1))
|
|
(should (= (ebox--string-pixel-width (car lines)) 120))))
|
|
|
|
(ert-deftest ebox-grid-keeps-padded-items-inside-column-width ()
|
|
"Stack padding should use the widest Grid line instead of its first line."
|
|
(let* ((header (ebox-create :content "Header" :width '(720)))
|
|
(grid (ebox-grid
|
|
:width '(718)
|
|
:grid-template-columns '((220) 1fr)
|
|
:gap '(1 (12))
|
|
:border "#C97252"
|
|
(ebox-create :content "Fixed" :width '(196)
|
|
:padding '(1 (12)))
|
|
(ebox-create :content "Fractional" :width '(460)
|
|
:padding '(1 (12)))))
|
|
(lines (ebox-string-lines (ebox-render (ebox-column header grid))))
|
|
(widths (mapcar #'ebox--string-pixel-width lines)))
|
|
(should (= (apply #'max widths) 720))))
|
|
|
|
(ert-deftest ebox-grid-supports-explicit-placement-and-span ()
|
|
"Explicit placement should support a cell spanning two columns."
|
|
(let ((plain
|
|
(ebox-grid-test--plain
|
|
(ebox-grid
|
|
:grid-template-columns '((20) (20))
|
|
:grid-template-rows '(1 1)
|
|
(ebox-grid-item (ebox-create :content "Header")
|
|
:grid-column '(1 :span 2))
|
|
(ebox-grid-item (ebox-create :content "Left")
|
|
:grid-row 2 :grid-column 1)
|
|
(ebox-grid-item (ebox-create :content "Right")
|
|
:grid-row 2 :grid-column 2)))))
|
|
(should (string-match-p "Header" plain))
|
|
(should (string-match-p "Left.*Right" plain))))
|
|
|
|
(ert-deftest ebox-grid-uses-implicit-track-templates ()
|
|
"Implicit columns should use `:grid-auto-columns' when they grow."
|
|
(let* ((node (ebox-grid
|
|
:grid-template-columns '((20))
|
|
:grid-auto-columns '((30))
|
|
:grid-auto-flow 'column
|
|
(ebox-create :content "A")
|
|
(ebox-create :content "B")))
|
|
(line (car (ebox-string-lines (ebox-render node)))))
|
|
(should (= (ebox--string-pixel-width line) 50))))
|
|
|
|
(ert-deftest ebox-grid-preserves-template-width-when-rows-grow ()
|
|
"Implicit rows should retain the declared template column count."
|
|
(let ((plain
|
|
(ebox-grid-test--plain
|
|
(ebox-grid
|
|
:grid-template-columns '((20) (20) (20))
|
|
(ebox-create :content "A")
|
|
(ebox-create :content "B")
|
|
(ebox-create :content "C")
|
|
(ebox-create :content "D")
|
|
(ebox-create :content "E")
|
|
(ebox-create :content "F")))))
|
|
(dolist (letter '("A" "B" "C" "D" "E" "F"))
|
|
(should (string-match-p letter plain)))))
|
|
|
|
(ert-deftest ebox-grid-supports-repeat-minmax-and-content-alignment ()
|
|
"Grid should normalize repeat/minmax tracks and align fixed tracks."
|
|
(let* ((node (ebox-grid
|
|
:width '(100)
|
|
:justify-content 'center
|
|
:grid-template-columns '((minmax (20) (30)) (repeat 1 (20)))
|
|
(ebox-create :content "A")
|
|
(ebox-create :content "B")))
|
|
(line (car (ebox-string-lines (ebox-render node)))))
|
|
(should (= (ebox--string-pixel-width line) 100))
|
|
(should (= (length (seq-filter (lambda (char) (= char ?\s)) line))
|
|
4))))
|
|
|
|
(ert-deftest ebox-grid-validates-flow-and-spans ()
|
|
"Invalid flow and non-positive spans should fail at render time."
|
|
(should-error
|
|
(ebox-render
|
|
(ebox-grid :grid-auto-flow 'diagonal (ebox-create :content "A"))))
|
|
(should-error
|
|
(ebox-render
|
|
(ebox-grid
|
|
(ebox-grid-item (ebox-create :content "A") :grid-column-span 0))))
|
|
(should-error
|
|
(ebox-render
|
|
(ebox-grid
|
|
(ebox-grid-item (ebox-create :content "A") :grid-column 0)))))
|
|
|
|
(ert-deftest ebox-grid-region-update-reflows-grid-child ()
|
|
"Grid children should retain region updates through buffer rendering."
|
|
(let* ((left (ebox-create :content "A" :id "left" :width 20))
|
|
(right (ebox-create :content "B" :id "right" :width 20))
|
|
(node (ebox-grid :grid-template-columns '((20) (20)) left right))
|
|
(buffer (ebox-render-to-buffer
|
|
(generate-new-buffer-name " *ebox-grid-update*") node))
|
|
(region-id (car (ebox-region-ids left))))
|
|
(unwind-protect
|
|
(progn
|
|
(should (with-current-buffer buffer
|
|
(and (string-match-p "A" (buffer-string))
|
|
(string-match-p "B" (buffer-string)))))
|
|
(with-current-buffer buffer
|
|
(ebox-region-update region-id :content "Updated"))
|
|
(let ((updated (with-current-buffer buffer (buffer-string))))
|
|
(should (string-match-p "Updated" updated))
|
|
(should (string-match-p "B" updated))))
|
|
(when (buffer-live-p buffer)
|
|
(kill-buffer buffer)))))
|
|
|
|
(ert-deftest ebox-build-compiles-grid-layout ()
|
|
"The public Ebox DSL should compile a grid node."
|
|
(let ((node
|
|
(ebox-build
|
|
'(grid :grid-template-columns ((20) (20))
|
|
(box :content "A")
|
|
(box :content "B")))))
|
|
(should (eq (plist-get node :ebox-type) 'grid))
|
|
(should (string-match-p "A" (ebox-grid-test--plain node)))
|
|
(should (string-match-p "B" (ebox-grid-test--plain node)))))
|
|
|
|
(ert-deftest ebox-build-compiles-grid-item-placement ()
|
|
"The Ebox DSL should preserve grid-item placement metadata."
|
|
(let ((node
|
|
(ebox-build
|
|
'(grid :grid-template-columns ((20) (20))
|
|
(grid-item :grid-column (1 :span 2)
|
|
(box :content "Header"))))))
|
|
(should (string-match-p "Header" (ebox-grid-test--plain node)))
|
|
(should (equal (plist-get (car (plist-get node :children)) :grid-column)
|
|
'(1 :span 2)))))
|
|
|
|
(provide 'ebox-grid-tests)
|
|
|
|
;;; ebox-grid-tests.el ends here
|