Tighten Pi signage HDMI settle coverage

apps/fc-signage-pi-player/tests/identity_bootstrap.bats

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+#!/usr/bin/env bats
+
+setup() {
+  APP_ROOT="$(cd "$BATS_TEST_DIRNAME/.." && pwd)"
+  BOOTSTRAP="$APP_ROOT/scripts/flowercore-signage-bootstrap.sh"
+  RENEW="$APP_ROOT/scripts/flowercore-signage-renew-cert.sh"
+}
+
+@test "bootstrap is idempotent when node is already enrolled" {
+  script="$(cat "$BOOTSTRAP")"
+  [[ "$script" == *'[[ -s "$NODE_JSON" && -s "$CERT_DIR/client.p12" ]]'* ]]
+  [[ "$script" == *"already enrolled"* ]]
+  [[ "$script" == *"exit 0"* ]]
+}
+
+@test "bootstrap generates a stable node uuid and machine id" {
+  script="$(cat "$BOOTSTRAP")"
+  [[ "$script" == *"uuidgen"* ]]
+  [[ "$script" == *"nodeUuid"* ]]
+  [[ "$script" == *"machineId"* ]]
+  [[ "$script" == *"cut -c1-16"* ]]
+}
+
+@test "bootstrap posts to the canonical register endpoint" {
+  grep -q '/api/v1/nodes/register' "$BOOTSTRAP"
+  grep -q '"linux-arm64-pi"' "$BOOTSTRAP"
+}
+
+@test "bootstrap retries registration once for first-call races" {
+  script="$(cat "$BOOTSTRAP")"
+  [[ "$script" == *"for attempt in 1 2"* ]]
+  [[ "$script" == *"register attempt \$attempt returned"* ]]
+  [[ "$script" == *"sleep 5"* ]]
+}
+
+@test "bootstrap supports setup-code approval with manual polling fallback" {
+  script="$(cat "$BOOTSTRAP")"
+  [[ "$script" == *"signage-setup-code"* ]]
+  [[ "$script" == *"approve-via-setup-code"* ]]
+  [[ "$script" == *"+ 1800"* ]]
+  [[ "$script" == *"sleep 15"* ]]
+}
+
+@test "bootstrap generates an ecdsa p256 csr for the signage pi subject" {
+  script="$(cat "$BOOTSTRAP")"
+  [[ "$script" == *"ecparam -genkey -name prime256v1"* ]]
+  [[ "$script" == *'/CN=${NODE_ID}/O=FlowerCore/OU=SignagePlayer-Pi'* ]]
+}
+
+@test "bootstrap writes pkcs12 bundle with restrictive permissions" {
+  script="$(cat "$BOOTSTRAP")"
+  [[ "$script" == *"openssl pkcs12 -export"* ]]
+  [[ "$script" == *"client.p12.pass"* ]]
+  [[ "$script" == *"chmod 0640"* ]]
+  [[ "$script" == *"chmod 0600"* ]]
+}
+
+@test "renewal only calls renew endpoint inside the thirty-day window and swaps atomically" {
+  script="$(cat "$RENEW")"
+  [[ "$script" == *'-checkend $((30*24*3600))'* ]]
+  [[ "$script" == *"/api/v1/nodes/\${NODE_ID}/renew"* ]]
+  [[ "$script" == *"client.key.new"* ]]
+  [[ "$script" == *'mv "$CERT_DIR/client.p12.new"   "$CERT_DIR/client.p12"'* ]]
+}