Add deterministic-tests (#190)

Reviewed-on: https://home.schmelczer.dev/git/git/andras/vault-link/pulls/190
Co-authored-by: Andras Schmelczer <andras@schmelczer.dev>
Co-committed-by: Andras Schmelczer <andras@schmelczer.dev>

frontend/deterministic-tests/src/tests/renamed-pending-create-reused-path-then-delete.test.ts

@@ -0,0 +1,65 @@
+import type { AssertableState } from "../utils/assertable-state";
+import type { TestDefinition } from "../test-definition";
+
+export const renamedPendingCreateReusedPathThenDeleteTest: TestDefinition = {
+    description:
+        "A queued create is renamed away from file-59.md, a newer local " +
+        "file reuses file-59.md before the queued create drains, and the " +
+        "renamed-away generation is deleted. The delete must not erase or " +
+        "orphan the newer file-59.md generation.",
+    clients: 2,
+    steps: [
+        { type: "enable-sync", client: 0 },
+        { type: "enable-sync", client: 1 },
+        { type: "barrier" },
+
+        { type: "pause-server" },
+        {
+            type: "create",
+            client: 1,
+            path: "blocker.md",
+            content: "blocker\n"
+        },
+        { type: "sleep", ms: 100 },
+
+        {
+            type: "create",
+            client: 1,
+            path: "file-59.md",
+            content: "old\n"
+        },
+        {
+            type: "rename",
+            client: 1,
+            oldPath: "file-59.md",
+            newPath: "file-33.md"
+        },
+        {
+            type: "create",
+            client: 1,
+            path: "file-59.md",
+            content: "new\n"
+        },
+
+        {
+            type: "resume-server-until-history-then-pause",
+            client: 1,
+            syncType: "CREATE",
+            path: "file-33.md"
+        },
+        { type: "delete", client: 1, path: "file-33.md" },
+        { type: "resume-server" },
+        { type: "barrier" },
+
+        {
+            type: "assert-consistent",
+            verify: (state: AssertableState): void => {
+                state
+                    .assertFileCount(2)
+                    .assertContent("blocker.md", "blocker\n")
+                    .assertContent("file-59.md", "new\n")
+                    .assertFileNotExists("file-33.md");
+            }
+        }
+    ]
+};