chore: import upstream snapshot with attribution

tests/unit/call-log-stream-debug.test.ts

@@ -0,0 +1,95 @@
+import test from "node:test";
+import assert from "node:assert/strict";
+import fs from "node:fs";
+import os from "node:os";
+import path from "node:path";
+
+const TEST_DATA_DIR = fs.mkdtempSync(path.join(os.tmpdir(), "omniroute-stream-debug-"));
+process.env.DATA_DIR = TEST_DATA_DIR;
+
+const core = await import("../../src/lib/db/core.ts");
+const callLogs = await import("../../src/lib/usage/callLogs.ts");
+
+async function resetStorage() {
+  core.resetDbInstance();
+  if (fs.existsSync(TEST_DATA_DIR)) {
+    fs.rmSync(TEST_DATA_DIR, { recursive: true, force: true });
+  }
+  fs.mkdirSync(TEST_DATA_DIR, { recursive: true });
+}
+
+test.beforeEach(async () => {
+  await resetStorage();
+});
+
+test.after(() => {
+  core.resetDbInstance();
+  fs.rmSync(TEST_DATA_DIR, { recursive: true, force: true });
+});
+
+test("saveCallLog preserves streamChunks in pipeline payloads", async () => {
+  const logId = "req_stream_debug_1";
+
+  const streamChunks = {
+    provider: [
+      'data: {"content": "hello"}\n\n',
+      'data: {"content": " world"}\n\n',
+      "data: [DONE]\n\n",
+    ],
+    openai: [
+      'data: {"choices":[{"delta":{"content":"hello"}}]}\n\n',
+      'data: {"choices":[{"delta":{"content":" world"}}]}\n\n',
+    ],
+    client: [
+      'data: {"choices":[{"delta":{"content":"hello"}}]}\n\n',
+      'data: {"choices":[{"delta":{"content":" world"}}]}\n\n',
+    ],
+  };
+
+  await callLogs.saveCallLog({
+    id: logId,
+    timestamp: new Date().toISOString(),
+    status: 200,
+    model: "gemini/gemma-4-26b-a4b-it",
+    provider: "gemini",
+    pipelinePayloads: {
+      clientRawRequest: { body: { stream: true } },
+      streamChunks: streamChunks,
+    },
+  });
+
+  const detail = await callLogs.getCallLogById(logId);
+
+  assert.ok(detail, "Log detail should exist");
+  assert.ok(detail.pipelinePayloads, "Pipeline payloads should exist");
+  assert.ok(detail.pipelinePayloads.streamChunks, "streamChunks should exist in pipeline payloads");
+
+  assert.deepEqual(detail.pipelinePayloads.streamChunks.provider, streamChunks.provider);
+  assert.deepEqual(detail.pipelinePayloads.streamChunks.openai, streamChunks.openai);
+  assert.deepEqual(detail.pipelinePayloads.streamChunks.client, streamChunks.client);
+});
+
+test("saveCallLog preserves partial streamChunks", async () => {
+  const logId = "req_stream_debug_2";
+
+  const streamChunks = {
+    provider: ["raw chunk 1", "raw chunk 2"],
+    // other stages missing
+  };
+
+  await callLogs.saveCallLog({
+    id: logId,
+    status: 200,
+    model: "test-model",
+    pipelinePayloads: {
+      streamChunks: streamChunks,
+    },
+  });
+
+  const detail = await callLogs.getCallLogById(logId);
+
+  assert.ok(detail?.pipelinePayloads?.streamChunks, "streamChunks should exist");
+  assert.deepEqual(detail.pipelinePayloads.streamChunks.provider, streamChunks.provider);
+  assert.equal(detail.pipelinePayloads.streamChunks.openai, undefined);
+  assert.equal(detail.pipelinePayloads.streamChunks.client, undefined);
+});