feat(device-plane): add typed B2 service ping transport

device-plane/packages/arusnavi-b2-adapter/test/adapter.test.mjs

@@ -7,8 +7,10 @@ import {
   assertB2ProfileInvariant,
   buildB2HeaderAcknowledgement,
   buildB2PackageAcknowledgement,
+  buildB2TypedCommand,
   tryParseB2Header2,
   tryParseB2Package,
+  tryParseB2TypedCommandResponse,
 } from "../src/index.mjs";
 
 const specificationHeader = Buffer.from(
@@ -131,10 +133,32 @@ test("fails closed on unsupported headers and malformed packages", () => {
   );
 });
 
-test("exports no command builder and keeps transport disabled", () => {
-  assert.equal(ARUSNAVI_B2_MODEL_PROFILE.commandTransport.status, "disabled");
+test("exports only the typed service-ping command", () => {
+  assert.equal(
+    ARUSNAVI_B2_MODEL_PROFILE.commandTransport.status,
+    "typed-service-ping-v1",
+  );
   assert.equal(
     ARUSNAVI_B2_MODEL_PROFILE.commandTransport.exportedCommandBuilders,
-    0,
+    1,
+  );
+  assert.equal(
+    buildB2TypedCommand({ commandType: "service.ping", accessCode: "123456" })
+      .toString("ascii"),
+    "123456*SERV*1.1",
+  );
+  assert.deepEqual(
+    tryParseB2TypedCommandResponse(Buffer.from("SERV OK", "ascii"), {
+      commandType: "service.ping",
+    }),
+    { status: "acknowledged", bytesConsumed: 7, resultCode: "serv_ok" },
+  );
+  assert.throws(
+    () => buildB2TypedCommand({ commandType: "service.ping", accessCode: "12345" }),
+    /b2_command_access_code_invalid/,
+  );
+  assert.throws(
+    () => buildB2TypedCommand({ commandType: "firmware.update", accessCode: "123456" }),
+    /b2_typed_command_unsupported/,
   );
 });