test: the wallpaper repair, on Tiny Pebbles' own file, in the lab and on a real install

Unit: Tiny Pebbles' file (desktop 10, panel 1), a healthy River Kids file left byte for byte, a late desktop beside a good one, idempotence, the refusal under a running shell. Lab: Plasma makes a bare desktop itself through a new activity, and the screen is read, not the file. Container gate: the installed package's fallback is the package, and its repair fixes the room's file and leaves the panel alone. Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-09-29 18:05:54 -05:00
parent 7b4ac39cd2
commit 9fc86f9d4c
4 changed files with 717 additions and 0 deletions
@@ -499,6 +499,71 @@ if [[ -n "$previous" ]]; then
    grep -q 'var PRESENTATIONS = false;' \
        /usr/share/plasma/look-and-feel/org.ekklesia.classroom.desktop/contents/layouts/org.kde.plasma.desktop-layout.js

+    # TINY PEBBLES, 0.2.2 -> 0.2.6.4: THE DESKTOP WITH NO WALLPAPER.
+    #
+    # The room's desktop was containment 10, made by Plasma after the
+    # layout had run, with nothing configured on it; it showed Plasma's
+    # own wallpaper. What a desktop gets when nothing wrote it is the look
+    # and feel's default, and that has to be a package Plasma can find.
+    lnf=/usr/share/plasma/look-and-feel/org.ekklesia.classroom.desktop/contents/defaults
+    [[ "$(sed -n '/^\[Wallpaper\]/,/^\[/s/^Image=//p' "$lnf")" == EkklesiaClassroom ]]
+    grep -q '"Id": "EkklesiaClassroom"' /usr/share/wallpapers/EkklesiaClassroom/metadata.json
+    [[ "$(readlink -f /usr/share/wallpapers/EkklesiaClassroom/contents/images/*.png)" \
+        == /usr/share/backgrounds/ekklesia/classroom-calm.png ]]
+    grep -qx 'ExecStartPre=-/usr/local/bin/classroom-desktop-wallpaper' \
+        /etc/systemd/user/plasma-plasmashell.service.d/ekklesia-classroom.conf
+
+    # And the repair the package installed, on that room's own file: the
+    # panel built with no screen took 1 and its applets 2 to 9.
+    wallpaper_home=$(mktemp -d)
+    cat > "$wallpaper_home/plasma-org.kde.plasma.desktop-appletsrc" <<'APPLETS'
+[Containments][1]
+formfactor=2
+location=4
+plugin=org.kde.panel
+wallpaperplugin=org.kde.image
+
+[Containments][1][Applets][2]
+plugin=org.kde.plasma.quicklaunch
+
+[Containments][1][Applets][9]
+plugin=org.kde.plasma.digitalclock
+
+[Containments][1][General]
+AppletOrder=2;3;4;5;6;7;8;9
+
+[Containments][10]
+activityId=62d3d55d-bd31-4fc8-9a7b-a5b9b2b99b60
+formfactor=0
+immutability=1
+lastScreen=0
+location=0
+plugin=org.kde.plasma.folder
+wallpaperplugin=org.kde.image
+
+[Containments][10][General]
+positions={"1920x1080":[]}
+APPLETS
+    applets="$wallpaper_home/plasma-org.kde.plasma.desktop-appletsrc"
+    panel_before=$(sed -n '/^\[Containments\]\[1\]/,/^$/p' "$applets")
+
+    ! XDG_CONFIG_HOME="$wallpaper_home" classroom-desktop-wallpaper --check >/dev/null
+    XDG_CONFIG_HOME="$wallpaper_home" classroom-desktop-wallpaper \
+        | grep -q 'configured on desktop 10'
+    sed -n '/^\[Containments\]\[10\]\[Wallpaper\]\[org.kde.image\]\[General\]$/,/^$/p' "$applets" \
+        | grep -qx 'Image=file:///usr/share/backgrounds/ekklesia/classroom-calm.png'
+    [[ "$(sed -n '/^\[Containments\]\[1\]/,/^$/p' "$applets")" == "$panel_before" ]]
+    [[ "$(grep -c '^\[Containments\]\[[0-9]*\]$' "$applets")" -eq 2 ]]
+
+    # Twice changes nothing, and a room that was already right is not
+    # written at all.
+    repaired=$(sha256sum < "$applets")
+    XDG_CONFIG_HOME="$wallpaper_home" classroom-desktop-wallpaper \
+        | grep -q 'the classroom wallpaper already'
+    [[ "$(sha256sum < "$applets")" == "$repaired" ]]
+    XDG_CONFIG_HOME="$wallpaper_home" classroom-desktop-wallpaper --check >/dev/null
+    rm -rf "$wallpaper_home"
+
    # And a room that was carried through the experiment on its own
    # channel comes home, because that channel is the obsolete one now.
    sed -i 's/^CHANNEL=.*/CHANNEL=classroom-v2/' /etc/ekklesia-classroom/device.conf