bench: add assemble --dry-run parse scenario and fixture

bench/fixtures/assemble.ini

@@ -0,0 +1,20 @@
+[bench-alpha]
+image=docker.io/library/alpine:latest
+additional_packages="git curl"
+init_hooks="echo hello"
+home=~/.local/share/bench-alpha
+volume="/tmp:/tmp"
+
+[bench-beta]
+image=docker.io/library/alpine:latest
+additional_packages="bash sudo"
+pre_init_hooks="echo pre"
+volume="/var/tmp:/var/tmp"
+volume="/home:/home"
+
+[bench-gamma]
+image=docker.io/library/alpine:latest
+init=true
+nvidia=false
+pull=false
+unshare_groups=true

bench/scenarios/04-assemble-parse.sh

@@ -0,0 +1,15 @@
+SCENARIO_DESCRIPTION="distrobox assemble create --dry-run on a 3-section ini"
+SCENARIO_WARMUP=3
+SCENARIO_RUNS=30
+
+FIXTURE_PATH="${SCRIPT_DIR}/fixtures/assemble.ini"
+
+scenario_supported() {
+    "$EXEC" assemble --help 2>&1 | grep -q -- '--dry-run'
+}
+
+scenario_setup()   { :; }
+scenario_command() {
+    printf '%s assemble create --file %s --dry-run\n' "$EXEC" "$FIXTURE_PATH"
+}
+scenario_cleanup() { :; }