Tests failing on Manjaro Linux.

[sjdevries]

I really like the look of the Polycore graph, but have been unable to get it to work. I have removed any of the nvidia / drive sections. I did not modify the core count, and have more than 6 cores, in case that makes a difference.

Linux version: 5.4.0-2-MANJARO (Manjaro Testing Branch)
Conky version: 1.11.3 (conky-lua from AUR)

conky -c test/test_util.lua

test clamp passed
test CycleQueue passed

conky -c test/test_layout.lua

test columns passed
test frame passed
test/test_layout.lua:58: render of at /tmp/conky_test.png does not match expected result at test/expected_outputs/complex_layout.png
stack traceback:
	test/test_layout.lua:190: in function 
	[C]: in function 'assert'
	test/test_layout.lua:58: in upvalue 'check_renderer'
	test/test_layout.lua:178: in function 
	[C]: in function 'xpcall'
	test/test_layout.lua:197: in function 'conky_update'
test complex_layout failed
test group passed

conky -c conkyrc.lua

conky: desktop window (400010) is subwindow of root window (6b4)
conky: window type - normal
conky: drawing to created window (0x2c00002)
conky: drawing to double buffer
./layout.lua:25: invalid value (nil) at index 3 in table for 'concat'
stack traceback:
	./src/polycore.lua:50: in function <./src/polycore.lua:49>
	[C]: in function 'table.concat'
	./layout.lua:25: in method 'update'
	./src/widget.lua:138: in method 'update'
	./src/polycore.lua:30: in function <./src/polycore.lua:25>
	[C]: in function 'xpcall'
	./src/polycore.lua:60: in function 'conky_update'

The stack traceback repeats every 1 second, which makes sense given the update timer.

Note: if I used window_type override I get a completely different error, but I think that is from this conky issue: brndnmtthws/conky#424

[philer]

Edited

Those seem to be two separate issues. I don't know what's causing the test to fail. I've pushed a small update for test_layout. If you don't mind, please pull that and run the test again, then upload the resulting file from /tmp/conky_test_complex_layout.png if the test still fails.

The normal layout fails in the fan rpm section, probably because you don't have lm_sensors installed or configured. Run sensors to see if any fans are reported. If the output does contain any fans please post it so I can check what's different.

I've added some comments in layout.lua to hopefully make those things easier to figure out.

[philer]

I worked on the tests some more. I assume that yours failed due to font rendering differences. Maybe you don't have the ubuntu font installed?

[dagadark]

I passed the test_util with the output:

test CycleQueue_init passed
test CycleQueue_index passed
test clamp passed
test CycleQueue_put passed
test CycleQueue_ipairs passed

But error with test_layout:

test/../src/cairo_helpers.lua:136: attempt to call a nil value (global 'cairo_image_surface_create')
stack traceback:
	test/test_layout.lua:260: in global 'cairo_image_surface_create'
	test/../src/cairo_helpers.lua:136: in upvalue 'fn'
	test/../src/util.lua:50: in function 'src/cairo_helpers.font_extents'
	test/../src/widget.lua:479: in field 'init'
	test/../src/widget.lua:535: in method 'init'
	test/../src/util.lua:17: in field 'TextLine'
	test/test_layout.lua:142: in function <test/test_layout.lua:133>
	[C]: in function 'xpcall'
	test/test_layout.lua:267: in function 'conky_update'
test text failed
test/../src/widget.lua:76: attempt to call a nil value (global 'cairo_image_surface_create')
stack traceback:
	test/test_layout.lua:260: in global 'cairo_image_surface_create'
	test/../src/widget.lua:76: in method 'init'
	test/../src/util.lua:17: in field 'Renderer'
	test/test_layout.lua:120: in function <test/test_layout.lua:113>
	[C]: in function 'xpcall'
	test/test_layout.lua:267: in function 'conky_update'
test group failed
test/../src/widget.lua:76: attempt to call a nil value (global 'cairo_image_surface_create')
stack traceback:
	test/test_layout.lua:260: in global 'cairo_image_surface_create'
	test/../src/widget.lua:76: in method 'init'
	test/../src/util.lua:17: in field 'Renderer'
	test/test_layout.lua:110: in function <test/test_layout.lua:98>
	[C]: in function 'xpcall'
	test/test_layout.lua:267: in function 'conky_update'
test frame failed
test/../src/widget.lua:76: attempt to call a nil value (global 'cairo_image_surface_create')
stack traceback:
	test/test_layout.lua:260: in global 'cairo_image_surface_create'
	test/../src/widget.lua:76: in method 'init'
	test/../src/util.lua:17: in field 'Renderer'
	test/test_layout.lua:248: in function <test/test_layout.lua:187>
	[C]: in function 'xpcall'
	test/test_layout.lua:267: in function 'conky_update'
test complex_layout failed
test/../src/widget.lua:76: attempt to call a nil value (global 'cairo_image_surface_create')
stack traceback:
	test/test_layout.lua:260: in global 'cairo_image_surface_create'
	test/../src/widget.lua:76: in method 'init'
	test/../src/util.lua:17: in field 'Renderer'
	test/test_layout.lua:130: in function <test/test_layout.lua:123>
	[C]: in function 'xpcall'
	test/test_layout.lua:267: in function 'conky_update'
test columns failed

I have installed ubuntu font too.

[philer]

@dagadark Did you run the test via conky -c ? Which version of conky are you using?

[dagadark]

@philer I use conky v1.11.5 and I run the test via conky -c.

[philer]

Then I assume your conky build is missing the cairo bindings. If you run conky -v it should be listed under "Lua bindings:".

[dagadark]

@philer After rebuilding conky, i got another error:
conky -c test/test_layout.lua:

test columns passed
test/test_layout.lua:61: Render at '/tmp/conky_test_text.png' does not match expected result at 'test/expected_outputs/text.png'.
Image diff stored at '/tmp/conky_test_text_diff.png'.
stack traceback:
	test/test_layout.lua:260: in function <test/test_layout.lua:259>
	[C]: in function 'assert'
	test/test_layout.lua:61: in upvalue 'assert_images_equal'
	test/test_layout.lua:73: in upvalue 'check_renderer'
	test/test_layout.lua:184: in function <test/test_layout.lua:133>
	[C]: in function 'xpcall'
	test/test_layout.lua:267: in function 'conky_update'
test text failed
test complex_layout passed
test frame passed
test group passed

Updated:
The diff image
conky_test_text_diff
And I got the same error with @sjdevries when running conky -c conkyrc.lua

[philer]

Thanks for the image. I think it means that font rendering is inconsistent. Judging by the image the anti aliasing around the edges is different. There may not be a way to fix this. Could you upload the actual result image from /tmp as well?

For the other issue please refer to my first reply above.

[dagadark]

Text image result from /tmp: /tmp/conky_test_text
Text image result from /expected_outputs: /expected_outputs/text

[philer]

That font rendering does look considerably different. I'll have to investigate.
Thanks for your help!