Model live application audio streams

2026-08-18 15:00:18 -04:00
parent e5a2a430e0
commit 9aea519e54
3 changed files with 272 additions and 0 deletions
@@ -0,0 +1,84 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+repo_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
+harness="$repo_dir/config/dot/quickshell/audio-streams-harness.qml"
+state_home="$(mktemp -d /tmp/panama-application-volume-state.XXXXXX)"
+shell_log="$state_home/quickshell.log"
+harness_pid=""
+
+fail() {
+    printf 'application volume contract: %s\n' "$1" >&2
+    [[ -s "$shell_log" ]] && sed -n '1,160p' "$shell_log" >&2
+    exit 1
+}
+
+instances_for_harness() {
+    qs list --all 2>/dev/null | awk -v expected="$harness" '
+        /^Instance / { pid = "" }
+        /^[[:space:]]*Process ID:/ { pid = $3 }
+        /^[[:space:]]*Config path:/ {
+            path = $0
+            sub(/^[[:space:]]*Config path: /, "", path)
+            if (path == expected && pid ~ /^[0-9]+$/) print pid
+        }
+    '
+}
+
+cleanup() {
+    if [[ "$harness_pid" =~ ^[0-9]+$ ]] && kill -0 "$harness_pid" 2>/dev/null; then
+        kill "$harness_pid" 2>/dev/null || true
+        for _ in $(seq 1 40); do
+            kill -0 "$harness_pid" 2>/dev/null || break
+            sleep 0.05
+        done
+    fi
+    rm -rf "$state_home"
+}
+trap cleanup EXIT
+
+qs_for_harness() {
+    if [[ "$harness_pid" =~ ^[0-9]+$ && "${1:-}" == "ipc" ]]; then
+        XDG_STATE_HOME="$state_home" qs -p "$harness" ipc --pid "$harness_pid" "${@:2}"
+    else
+        XDG_STATE_HOME="$state_home" qs -p "$harness" "$@"
+    fi
+}
+
+qs_for_harness --daemonize >"$shell_log" 2>&1 || fail 'isolated harness did not launch'
+for _ in $(seq 1 50); do
+    harness_pid="$(instances_for_harness | head -1)"
+    if [[ "$harness_pid" =~ ^[0-9]+$ ]] \
+        && qs_for_harness ipc show 2>/dev/null | rg -q '^target application-volume-test$'; then
+        break
+    fi
+    sleep 0.1
+done
+[[ "$harness_pid" =~ ^[0-9]+$ ]] || fail 'isolated harness process did not start'
+qs_for_harness ipc show 2>/dev/null | rg -q '^target application-volume-test$' \
+    || fail 'application-volume-test IPC target did not register'
+
+summary="$(qs_for_harness ipc call application-volume-test summary)"
+expected_groups='[
+  {"key":"org.chromium.Chromium","label":"Chromium","icon":"chromium","count":2},
+  {"key":"spotify","label":"Spotify","icon":"audio-x-generic-symbolic","count":1},
+  {"key":"node:99","label":"Unknown application","icon":"audio-x-generic-symbolic","count":1}
+]'
+jq -e --argjson expected "$expected_groups" \
+    '.groups == $expected and (.chromiumVolume - 0.6 | fabs) < 0.000001 and .chromiumMuted == false' \
+    <<<"$summary" >/dev/null || fail "unexpected grouping summary: $summary"
+
+volume_result="$(qs_for_harness ipc call application-volume-test mutateVolume)"
+jq -e '.changed == true and .volumes == [0.7, 0.7] and .muted == [false, false]' \
+    <<<"$volume_result" >/dev/null || fail "volume mutation did not reach every stream: $volume_result"
+
+mute_result="$(qs_for_harness ipc call application-volume-test mutateMute)"
+jq -e '.changed == true and .muted == [true, true]' <<<"$mute_result" >/dev/null \
+    || fail "mute mutation did not reach every stream: $mute_result"
+
+if rg -n 'ReferenceError|TypeError|Binding loop|Cannot assign|PwObjectTracker' "$shell_log"; then
+    fail 'isolated harness emitted a QML runtime error'
+fi
+
+printf 'application volume contract: PASS\n'