diff --git a/compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/todo-post-increment-assignment.js b/compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/todo-post-increment-assignment.js
new file mode 100644
index 00000000000..da043d92bee
--- /dev/null
+++ b/compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/todo-post-increment-assignment.js
@@ -0,0 +1,13 @@
+function Component(props) {
+  const items = [0, 1, 2];
+  return items.reduce((agg, item) => {
+    const current = agg.count++;
+    agg.res.push(current);
+    return agg;
+  }, {count: 0, res: []});
+}
+
+export const FIXTURE_ENTRYPOINT = {
+  fn: Component,
+  params: [{}],
+};
diff --git a/compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/todo-update-expression-captured-variable.js b/compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/todo-update-expression-captured-variable.js
new file mode 100644
index 00000000000..628a0657a2d
--- /dev/null
+++ b/compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/todo-update-expression-captured-variable.js
@@ -0,0 +1,13 @@
+function Component() {
+  let x = 0;
+  const inc = () => {
+    x++;
+  };
+  inc();
+  return x;
+}
+
+export const FIXTURE_ENTRYPOINT = {
+  fn: Component,
+  params: [],
+};