From 4378cffb515afa084fd3be1db0300921cdfbc7cc Mon Sep 17 00:00:00 2001
From: Marco Salazar <salazarm@fb.com>
Date: Fri, 25 Mar 2022 13:29:35 -0400
Subject: [PATCH 1/3] fix validate iterable call

---
 .../src/__tests__/ReactDOMFizzServer-test.js  | 22 +++++++++++++++++++
 packages/react-server/src/ReactFizzServer.js  |  2 +-
 2 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/packages/react-dom/src/__tests__/ReactDOMFizzServer-test.js b/packages/react-dom/src/__tests__/ReactDOMFizzServer-test.js
index 3ced96af2956..8bd64ee5c02b 100644
--- a/packages/react-dom/src/__tests__/ReactDOMFizzServer-test.js
+++ b/packages/react-dom/src/__tests__/ReactDOMFizzServer-test.js
@@ -2508,4 +2508,26 @@ describe('ReactDOMFizzServer', () => {
       <span>default</span>,
     ]);
   });
+
+  it('Supports immutable lists', async () => {
+    const Immutable = require('immutable');
+
+    const mappedJSX = Immutable.fromJS([
+      {name: 'a', value: 'a'},
+      {name: 'b', value: 'b'},
+    ]).map(item => <li key={item.get('value')}>{item.get('name')}</li>);
+
+    await act(async () => {
+      const {pipe} = ReactDOMFizzServer.renderToPipeableStream(
+        <ul>{mappedJSX}</ul>,
+      );
+      pipe(writable);
+    });
+    expect(getVisibleChildren(container)).toEqual(
+      <ul>
+        <li>a</li>
+        <li>b</li>
+      </ul>,
+    );
+  });
 });
diff --git a/packages/react-server/src/ReactFizzServer.js b/packages/react-server/src/ReactFizzServer.js
index c09d21cb55cf..018235aae087 100644
--- a/packages/react-server/src/ReactFizzServer.js
+++ b/packages/react-server/src/ReactFizzServer.js
@@ -1181,7 +1181,7 @@ function renderNodeDestructive(
     const iteratorFn = getIteratorFn(node);
     if (iteratorFn) {
       if (__DEV__) {
-        validateIterable(node, iteratorFn());
+        validateIterable(node, iteratorFn);
       }
       const iterator = iteratorFn.call(node);
       if (iterator) {

From c8bd01499157089f89cb9df89f4df98acfcc3a72 Mon Sep 17 00:00:00 2001
From: Marco Salazar <salazarm@fb.com>
Date: Fri, 25 Mar 2022 13:32:34 -0400
Subject: [PATCH 2/3] supports iterable

---
 packages/react-dom/src/__tests__/ReactDOMFizzServer-test.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/react-dom/src/__tests__/ReactDOMFizzServer-test.js b/packages/react-dom/src/__tests__/ReactDOMFizzServer-test.js
index 8bd64ee5c02b..4aef4f3ec6dd 100644
--- a/packages/react-dom/src/__tests__/ReactDOMFizzServer-test.js
+++ b/packages/react-dom/src/__tests__/ReactDOMFizzServer-test.js
@@ -2509,7 +2509,7 @@ describe('ReactDOMFizzServer', () => {
     ]);
   });
 
-  it('Supports immutable lists', async () => {
+  it('Supports iterable', async () => {
     const Immutable = require('immutable');
 
     const mappedJSX = Immutable.fromJS([

From a8804f0b5360dcb2f4d5f7a7885c0cd4eef5cdaa Mon Sep 17 00:00:00 2001
From: Marco Salazar <salazarm@fb.com>
Date: Fri, 25 Mar 2022 13:35:44 -0400
Subject: [PATCH 3/3] gate test by experimental

---
 packages/react-dom/src/__tests__/ReactDOMFizzServer-test.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/packages/react-dom/src/__tests__/ReactDOMFizzServer-test.js b/packages/react-dom/src/__tests__/ReactDOMFizzServer-test.js
index 4aef4f3ec6dd..568a931c7d9e 100644
--- a/packages/react-dom/src/__tests__/ReactDOMFizzServer-test.js
+++ b/packages/react-dom/src/__tests__/ReactDOMFizzServer-test.js
@@ -2509,6 +2509,7 @@ describe('ReactDOMFizzServer', () => {
     ]);
   });
 
+  // @gate experimental
   it('Supports iterable', async () => {
     const Immutable = require('immutable');