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test(linux): check the resolutions parsed from xrandr output

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Move the parsing of resolutions() into resolutions_from_xrandr(), which takes the xrandr output, so the test asserts the returned list instead of the captured mode lines. resolutions() runs xrandr and calls it; the parsing is unchanged.
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L4XB committed 2026-10-23 10:20:53 +02:00
1 parent 03f720c4d9
commit 854beb1af3
1 file changed
+55 -57
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src/platform/linux.rs
+55 -57
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@@ -1940,66 +1940,68 @@ fn get_xrandr_conn_pat(name: &str) -> String {
)
}
// The mode lines below an output. A mode name can have a suffix after its size, like the "i" of
// "1920x1080i", so a TV's interlaced mode does not end the list.
const XRANDR_MODES_PAT: &str = r"(?P<resolutions>(\s*\d+x\d+\S*\s+\d+.*\n)+)";
pub fn resolutions(name: &str) -> Vec<Resolution> {
let resolutions_pat = XRANDR_MODES_PAT;
match run_cmds("xrandr --query | tr -s ' '") {
Ok(xrandr_output) => resolutions_from_xrandr(name, &xrandr_output),
Err(e) => {
log::error!("Failed to run xrandr query, {}", e);
vec![]
}
}
}
fn resolutions_from_xrandr(name: &str, xrandr_output: &str) -> Vec<Resolution> {
// A mode name can have a suffix after its size, like the "i" of "1920x1080i", so a TV's
// interlaced mode does not end the list.
let resolutions_pat = r"(?P<resolutions>(\s*\d+x\d+\S*\s+\d+.*\n)+)";
let connected_pat = get_xrandr_conn_pat(name);
let mut v = vec![];
if let Ok(re) = Regex::new(&format!("{}{}", connected_pat, resolutions_pat)) {
match run_cmds("xrandr --query | tr -s ' '") {
Ok(xrandr_output) => {
// There'are different kinds of xrandr output.
/*
1.
Screen 0: minimum 320 x 175, current 1920 x 1080, maximum 1920 x 1080
default connected 1920x1080+0+0 0mm x 0mm
1920x1080 10.00*
1280x720 25.00
1680x1050 60.00
Virtual2 disconnected (normal left inverted right x axis y axis)
Virtual3 disconnected (normal left inverted right x axis y axis)
// There'are different kinds of xrandr output.
/*
1.
Screen 0: minimum 320 x 175, current 1920 x 1080, maximum 1920 x 1080
default connected 1920x1080+0+0 0mm x 0mm
1920x1080 10.00*
1280x720 25.00
1680x1050 60.00
Virtual2 disconnected (normal left inverted right x axis y axis)
Virtual3 disconnected (normal left inverted right x axis y axis)
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384
eDP-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm x 193mm
1920x1080 60.01*+ 60.01 59.97 59.96 59.93
1680x1050 59.95 59.88
1600x1024 60.17
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384
eDP-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm x 193mm
1920x1080 60.01*+ 60.01 59.97 59.96 59.93
1680x1050 59.95 59.88
1600x1024 60.17
XWAYLAND0 connected primary 1920x984+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
Virtual1 connected primary 1920x984+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
HDMI-0 connected (normal left inverted right x axis y axis)
XWAYLAND0 connected primary 1920x984+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
Virtual1 connected primary 1920x984+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
HDMI-0 connected (normal left inverted right x axis y axis)
rdp0 connected primary 1920x1080+0+0 0mm x 0mm
*/
if let Some(caps) = re.captures(&xrandr_output) {
if let Some(resolutions) = caps.name("resolutions") {
let resolution_pat =
r"\s*(?P<width>\d+)x(?P<height>\d+)\s+(?P<rates>(\d+\.\d+\D*)+)\s*\n";
let Ok(resolution_re) = Regex::new(&format!(r"{}", resolution_pat)) else {
log::error!("Regex new failed");
return vec![];
rdp0 connected primary 1920x1080+0+0 0mm x 0mm
*/
if let Some(caps) = re.captures(xrandr_output) {
if let Some(resolutions) = caps.name("resolutions") {
let resolution_pat =
r"\s*(?P<width>\d+)x(?P<height>\d+)\s+(?P<rates>(\d+\.\d+\D*)+)\s*\n";
let Ok(resolution_re) = Regex::new(&format!(r"{}", resolution_pat)) else {
log::error!("Regex new failed");
return vec![];
};
for resolution_caps in resolution_re.captures_iter(resolutions.as_str()) {
if let Some((width, height)) = get_width_height_from_captures(&resolution_caps)
{
let resolution = Resolution {
width,
height,
..Default::default()
};
for resolution_caps in resolution_re.captures_iter(resolutions.as_str()) {
if let Some((width, height)) =
get_width_height_from_captures(&resolution_caps)
{
let resolution = Resolution {
width,
height,
..Default::default()
};
if !v.contains(&resolution) {
v.push(resolution);
}
}
if !v.contains(&resolution) {
v.push(resolution);
}
}
}
}
Err(e) => log::error!("Failed to run xrandr query, {}", e),
}
}
@@ -2051,15 +2053,11 @@ HDMI-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis
640x480 75.00 59.94
DP-0 disconnected (normal left inverted right x axis y axis)
";
let re = Regex::new(&format!(
"{}{}",
get_xrandr_conn_pat("HDMI-0"),
XRANDR_MODES_PAT
))
.unwrap();
let caps = re.captures(xrandr_output).unwrap();
assert!(caps["resolutions"].contains(" 1280x720 "));
assert!(caps["resolutions"].contains(" 640x480 "));
let sizes: Vec<_> = resolutions_from_xrandr("HDMI-0", xrandr_output)
.iter()
.map(|r| (r.width, r.height))
.collect();
assert_eq!(sizes, vec![(1920, 1080), (1280, 720), (640, 480)]);
}
}