Preserve RRD preview frames and clarify onboard K1 status

2026-09-07 15:27:13 +03:00
parent 67398fef10
commit 92b60de945
19 changed files with 516 additions and 94 deletions
@@ -0,0 +1,43 @@
+import assert from 'node:assert/strict';
+import {before,after,test} from 'node:test';
+import {execFileSync} from 'node:child_process';
+import {createServer} from 'vite';
+let server,previewFrames,assertRrd;
+before(async()=>{
+ server=await createServer({appType:'custom',logLevel:'silent',server:{middlewareMode:true}});
+ ({previewFrames,assertRrd}=await server.ssrLoadModule('@xgrids-k1/frontend/sensors/previewFrames.ts'));
+});
+after(async()=>{await server?.close();});
+const array=bytes=>Uint8Array.from(bytes).buffer;
+const header=size=>{const value=new Uint8Array(8);value.set([77,67,70,49]);new DataView(value.buffer).setUint32(4,size);return value.buffer;};
+test('native RRD crosses many RTC fragments and reaches decoder once, byte-for-byte',()=>{
+ const payload=execFileSync('../../.venv/bin/python',['-c',`import rerun as rr, numpy as np, sys
+r=rr.RecordingStream('synthetic-r10-js'); b=r.binary_stream()
+r.log('points',rr.Points3D(np.random.default_rng(42).random((5000,3))))
+sys.stdout.buffer.write(b.read())`]);
+ assert.ok(payload.length>16384);
+ const calls=[];
+ const receiver=previewFrames(value=>{assertRrd(value);calls.push(value);});
+ for(let record=0;record<2;record++){
+  receiver.push(header(payload.length));
+  for(let offset=0;offset<payload.length;offset+=16384){
+   receiver.push(array(payload.subarray(offset,offset+16384)));
+   if(offset+16384<payload.length)assert.equal(calls.length,record);
+  }
+  assert.deepEqual(Buffer.from(calls[record]),payload);
+ }
+ assert.equal(calls.length,2);
+ receiver.close();
+});
+test('partial, oversized, unframed and invalid records never enter the decoder',()=>{
+ let calls=0;
+ const receiver=previewFrames(value=>{assertRrd(value);calls++;});
+ assert.throws(()=>receiver.push(array([1,2,3])));
+ assert.throws(()=>receiver.push(header(8*1024*1024+1)));
+ assert.throws(()=>receiver.push(header(0)));
+ receiver.push(header(20));receiver.push(array([1,2]));receiver.close();
+ assert.equal(calls,0);
+ receiver.push(header(12));assert.throws(()=>receiver.push(array(new Uint8Array(13))));receiver.close();
+ receiver.push(header(12));assert.throws(()=>receiver.push(array(new Uint8Array(12))));
+ assert.equal(calls,0);
+});