Clean up deterministic tests

frontend/deterministic-tests/src/tests/concurrent-rename-first-wins.test.ts

@@ -0,0 +1,36 @@
+import type { TestDefinition } from "../test-definition";
+
+export const concurrentRenameFirstWinsTest: TestDefinition = {
+    description:
+        "Both clients start online with the same file. Both go offline, " +
+        "rename the file to different paths, and edit it. When they reconnect, " +
+        "the first rename to reach the server wins the path and both content " +
+        "edits are merged.",
+    clients: 2,
+    steps: [
+        { type: "create", client: 0, path: "A.md", content: "line 1\nline 2\nline 3" },
+        { type: "enable-sync", client: 0 },
+        { type: "enable-sync", client: 1 },
+        { type: "barrier" },
+        { type: "assert-consistent", verify: (s) => s.assertContent("A.md", "line 1\nline 2\nline 3") },
+
+        { type: "disable-sync", client: 0 },
+        { type: "disable-sync", client: 1 },
+
+        { type: "rename", client: 0, oldPath: "A.md", newPath: "B.md" },
+        { type: "update", client: 0, path: "B.md", content: "edit from 0\nline 2\nline 3" },
+
+        { type: "rename", client: 1, oldPath: "A.md", newPath: "C.md" },
+        { type: "update", client: 1, path: "C.md", content: "line 1\nline 2\nedit from 1" },
+
+        { type: "enable-sync", client: 0 },
+        { type: "enable-sync", client: 1 },
+        { type: "barrier" },
+
+        { type: "assert-consistent", verify: (s) => {
+            s.assertFileNotExists("A.md");
+            s.assertFileCount(1);
+            s.assertAnyFileContains("edit from 0", "edit from 1");
+        } },
+    ],
+};