start writing some tests for drawings

[?]

Jun 14, 2022, 5:28 PM

K2X6G75Z6XBC4DVIRWC5HC7XA3A2SKOM3MWSQTCFEYWIJL7LME2QC

Dependencies

[2] LUNH47XX make text and drawings the same width
[3] HYEAFRZ2 split mouse_pressed events between Text and Drawing
[4] DLQMM265 scroll past first page
[*] R5QXEHUI somebody stop me
[*] BLWAYPKV extract a module
[*] VHQCNMAR several more modules

Change contents

file addition: drawing_tests.lua (----------)

[6.2]

-- major tests for drawings
-- We minimize assumptions about specific pixels, and try to test at the level
-- of specific shapes. In particular, no tests of freehand drawings.

function test_draw_line()
io.write('\ntest_draw_line')
-- display a drawing followed by a line of text (you shouldn't ever have a drawing right at the end)
App.screen.init{width=Margin_left+300, height=300}
Lines = load_array{'```lines', '```', ''}
Line_width = 256 -- drawing coordinates 1:1 with pixels
Current_drawing_mode = 'line'
App.draw()
check_eq(#Lines, 2, 'F - test_draw_line/baseline/#lines')
check_eq(Lines[1].mode, 'drawing', 'F - test_draw_line/baseline/mode')
check_eq(Lines[1].y, Margin_top+Drawing_padding_top, 'F - test_draw_line/baseline/y')
check_eq(Lines[1].h, 128, 'F - test_draw_line/baseline/y')
check_eq(#Lines[1].shapes, 0, 'F - test_draw_line/baseline/#shapes')
-- draw a line
App.run_after_mouse_press(Margin_left+5, Margin_top+Drawing_padding_top+6, 1)
App.run_after_mouse_release(Margin_left+35, Margin_top+Drawing_padding_top+36, 1)
check_eq(#Lines[1].shapes, 1, 'F - test_draw_line/#shapes')
check_eq(#Lines[1].points, 2, 'F - test_draw_line/#points')
local drawing = Lines[1]
local p1 = drawing.points[drawing.shapes[1].p1]
local p2 = drawing.points[drawing.shapes[1].p2]
check_eq(p1.x, 5, 'F - test_draw_line/p1:x')
check_eq(p1.y, 6, 'F - test_draw_line/p1:y')
check_eq(p2.x, 35, 'F - test_draw_line/p2:x')
check_eq(p2.y, 36, 'F - test_draw_line/p2:y')
end
edit in drawing.lua at line 4

[8.18268]

[7.147]

require 'drawing_tests'
replacement in drawing.lua at line 207

[3.2271]→[2.612:716](∅→∅)

return y >= drawing.y and y < drawing.y + Drawing.pixels(drawing.h) and x >= 16 and x < 16+Line_width

[3.2271]

[3.795]

return y >= drawing.y and y < drawing.y + Drawing.pixels(drawing.h) and x >= Margin_left and x < Margin_left+Line_width