Add tests for ReactNativeAttributePayloadFabric.js (#29608)

## Summary

This PR add tests for `ReactNativeAttributePayloadFabric.js`.

It introduces `ReactNativeAttributePayloadFabric-test.internal.js`,
which is a copy-paste of `ReactNativeAttributePayload-test.internal.js`.

On top of that, there is a bunch of new test cases for the
`ReactNativeAttributePayloadFabric.create` function.

## How did you test this change?

```
yarn test packages/react-native-renderer
```

DiffTrain build for commit https://github.com/facebook/react/commit/51dd09631ac0c7824fec55f38462846b6fe41d06.

compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/REVISION

@@ -1 +1 @@
-38e3b23483bf7a612391cd617a8926aa1f3cf52e
+51dd09631ac0c7824fec55f38462846b6fe41d06

compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/implementations/ReactFabric-dev.fb.js

@@ -7,7 +7,7 @@
  * @noflow
  * @nolint
  * @preventMunge
- * @generated SignedSource<<715c7ff1aa207b21918f50cdc5380bf6>>
+ * @generated SignedSource<<ab8d28628a6daaeaf3d5ca2abe1262e5>>
  */
 
 'use strict';
@@ -2364,17 +2364,23 @@ function diffProperties(updatePayload, prevProps, nextProps, validAttributes) {
 }
 
 function fastAddProperties(payload, props, validAttributes) {
-  var attributeConfig;
-  var prop;
+  // Flatten nested style props.
+  if (isArray(props)) {
+    for (var i = 0; i < props.length; i++) {
+      payload = fastAddProperties(payload, props[i], validAttributes);
+    }
+
+    return payload;
+  }
 
   for (var propKey in props) {
-    prop = props[propKey];
+    var prop = props[propKey];
 
     if (prop === undefined) {
       continue;
     }
 
-    attributeConfig = validAttributes[propKey];
+    var attributeConfig = validAttributes[propKey];
 
     if (attributeConfig == null) {
       continue;
@@ -2392,7 +2398,7 @@ function fastAddProperties(payload, props, validAttributes) {
       // An atomic prop with custom processing.
       newValue = attributeConfig.process(prop);
     } else if (typeof attributeConfig.diff === 'function') {
-      // An atomic prop with custom diffing. We don't do diffing here.
+      // An atomic prop with custom diffing. We don't need to do diffing when adding props.
       newValue = prop;
     }
 
@@ -2403,18 +2409,7 @@ function fastAddProperties(payload, props, validAttributes) {
 
       payload[propKey] = newValue;
       continue;
-    } // Not-atomic prop that needs to be flattened. Likely it's the 'style' prop.
-    // It can be an array.
-
-
-    if (isArray(prop)) {
-      for (var i = 0; i < prop.length; i++) {
-        payload = fastAddProperties(payload, prop[i], attributeConfig);
-      }
-
-      continue;
-    } // Or it can be an object.
-
+    }
 
     payload = fastAddProperties(payload, prop, attributeConfig);
   }
@@ -2427,11 +2422,7 @@ function fastAddProperties(payload, props, validAttributes) {
 
 
 function addProperties(updatePayload, props, validAttributes) {
-  if (enableAddPropertiesFastPath) {
-    return fastAddProperties(updatePayload, props, validAttributes);
-  } else {
-    return diffProperties(updatePayload, emptyObject$1, props, validAttributes);
-  }
+  return diffProperties(updatePayload, emptyObject$1, props, validAttributes);
 }
 /**
  * clearProperties clears all the previous props by adding a null sentinel
@@ -2445,8 +2436,11 @@ function clearProperties(updatePayload, prevProps, validAttributes) {
 }
 
 function create(props, validAttributes) {
-  return addProperties(null, // updatePayload
-  props, validAttributes);
+  if (enableAddPropertiesFastPath) {
+    return fastAddProperties(null, props, validAttributes);
+  } else {
+    return addProperties(null, props, validAttributes);
+  }
 }
 function diff(prevProps, nextProps, validAttributes) {
   return diffProperties(null, // updatePayload
@@ -26212,7 +26206,7 @@ identifierPrefix, onUncaughtError, onCaughtError, onRecoverableError, transition
   return root;
 }
 
-var ReactVersion = '19.0.0-rc-6b65a277';
+var ReactVersion = '19.0.0-rc-eb8ea74f';
 
 /*
  * The `'' + value` pattern (used in perf-sensitive code) throws for Symbol

compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/implementations/ReactFabric-prod.fb.js

@@ -7,7 +7,7 @@
  * @noflow
  * @nolint
  * @preventMunge
- * @generated SignedSource<<e220fc857a21f1b640cba2d994902482>>
+ * @generated SignedSource<<6a822844da38fad5149fb7f36a73eb44>>
  */
 
 "use strict";
@@ -1085,7 +1085,12 @@ function diffNestedProperty(
 function addNestedProperty(updatePayload, nextProp, validAttributes) {
   if (!nextProp) return updatePayload;
   if (!isArrayImpl(nextProp))
-    return addProperties(updatePayload, nextProp, validAttributes);
+    return diffProperties(
+      updatePayload,
+      emptyObject$1,
+      nextProp,
+      validAttributes
+    );
   for (var i = 0; i < nextProp.length; i++)
     updatePayload = addNestedProperty(
       updatePayload,
@@ -1196,11 +1201,15 @@ function diffProperties(updatePayload, prevProps, nextProps, validAttributes) {
   return updatePayload;
 }
 function fastAddProperties(payload, props, validAttributes) {
-  var propKey;
-  for (propKey in props) {
-    var prop = props[propKey];
+  if (isArrayImpl(props)) {
+    for (var i = 0; i < props.length; i++)
+      payload = fastAddProperties(payload, props[i], validAttributes);
+    return payload;
+  }
+  for (i in props) {
+    var prop = props[i];
     if (void 0 !== prop) {
-      var attributeConfig = validAttributes[propKey];
+      var attributeConfig = validAttributes[i];
       if (null != attributeConfig) {
         var newValue = void 0;
         "function" === typeof prop
@@ -1210,25 +1219,18 @@ function fastAddProperties(payload, props, validAttributes) {
           : "function" === typeof attributeConfig.process
           ? (newValue = attributeConfig.process(prop))
           : "function" === typeof attributeConfig.diff && (newValue = prop);
-        if (void 0 !== newValue)
-          payload || (payload = {}), (payload[propKey] = newValue);
-        else if (isArrayImpl(prop))
-          for (newValue = 0; newValue < prop.length; newValue++)
-            payload = fastAddProperties(
-              payload,
-              prop[newValue],
-              attributeConfig
-            );
-        else payload = fastAddProperties(payload, prop, attributeConfig);
+        void 0 !== newValue
+          ? (payload || (payload = {}), (payload[i] = newValue))
+          : (payload = fastAddProperties(payload, prop, attributeConfig));
       }
     }
   }
   return payload;
 }
-function addProperties(updatePayload, props, validAttributes) {
+function create(props, validAttributes) {
   return enableAddPropertiesFastPath
-    ? fastAddProperties(updatePayload, props, validAttributes)
-    : diffProperties(updatePayload, emptyObject$1, props, validAttributes);
+    ? fastAddProperties(null, props, validAttributes)
+    : diffProperties(null, emptyObject$1, props, validAttributes);
 }
 function batchedUpdatesImpl(fn, bookkeeping) {
   return fn(bookkeeping);
@@ -1629,14 +1631,13 @@ function resolveUpdatePriority() {
 var scheduleTimeout = setTimeout,
   cancelTimeout = clearTimeout;
 function cloneHiddenInstance(instance) {
-  var node = instance.node;
-  var JSCompiler_inline_result = addProperties(
-    null,
-    { style: { display: "none" } },
-    instance.canonical.viewConfig.validAttributes
-  );
+  var node = instance.node,
+    updatePayload = create(
+      { style: { display: "none" } },
+      instance.canonical.viewConfig.validAttributes
+    );
   return {
-    node: cloneNodeWithNewProps(node, JSCompiler_inline_result),
+    node: cloneNodeWithNewProps(node, updatePayload),
     canonical: instance.canonical
   };
 }
@@ -7321,11 +7322,7 @@ function completeWork(current, workInProgress, renderLanes) {
         current = nextReactTag;
         nextReactTag += 2;
         renderLanes = getViewConfigForType(renderLanes);
-        newChildSet = addProperties(
-          null,
-          newProps,
-          renderLanes.validAttributes
-        );
+        newChildSet = create(newProps, renderLanes.validAttributes);
         oldProps = createNode(
           current,
           renderLanes.uiViewClassName,
@@ -10554,7 +10551,7 @@ var roots = new Map(),
   devToolsConfig$jscomp$inline_1124 = {
     findFiberByHostInstance: getInstanceFromNode,
     bundleType: 0,
-    version: "19.0.0-rc-a1153661",
+    version: "19.0.0-rc-d92431d2",
     rendererPackageName: "react-native-renderer",
     rendererConfig: {
       getInspectorDataForInstance: getInspectorDataForInstance,
@@ -10570,7 +10567,7 @@ var roots = new Map(),
       }.bind(null, findNodeHandle)
     }
   };
-var internals$jscomp$inline_1354 = {
+var internals$jscomp$inline_1350 = {
   bundleType: devToolsConfig$jscomp$inline_1124.bundleType,
   version: devToolsConfig$jscomp$inline_1124.version,
   rendererPackageName: devToolsConfig$jscomp$inline_1124.rendererPackageName,
@@ -10597,19 +10594,19 @@ var internals$jscomp$inline_1354 = {
   scheduleRoot: null,
   setRefreshHandler: null,
   getCurrentFiber: null,
-  reconcilerVersion: "19.0.0-rc-a1153661"
+  reconcilerVersion: "19.0.0-rc-d92431d2"
 };
 if ("undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__) {
-  var hook$jscomp$inline_1355 = __REACT_DEVTOOLS_GLOBAL_HOOK__;
+  var hook$jscomp$inline_1351 = __REACT_DEVTOOLS_GLOBAL_HOOK__;
   if (
-    !hook$jscomp$inline_1355.isDisabled &&
-    hook$jscomp$inline_1355.supportsFiber
+    !hook$jscomp$inline_1351.isDisabled &&
+    hook$jscomp$inline_1351.supportsFiber
   )
     try {
-      (rendererID = hook$jscomp$inline_1355.inject(
-        internals$jscomp$inline_1354
+      (rendererID = hook$jscomp$inline_1351.inject(
+        internals$jscomp$inline_1350
       )),
-        (injectedHook = hook$jscomp$inline_1355);
+        (injectedHook = hook$jscomp$inline_1351);
     } catch (err) {}
 }
 exports.createPortal = function (children, containerTag) {

compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/implementations/ReactFabric-profiling.fb.js

@@ -7,7 +7,7 @@
  * @noflow
  * @nolint
  * @preventMunge
- * @generated SignedSource<<2e682bd27fce85dbf44c7d76dad0d567>>
+ * @generated SignedSource<<dc3b2aaa3c81338654d45795eca7bd82>>
  */
 
 "use strict";
@@ -1089,7 +1089,12 @@ function diffNestedProperty(
 function addNestedProperty(updatePayload, nextProp, validAttributes) {
   if (!nextProp) return updatePayload;
   if (!isArrayImpl(nextProp))
-    return addProperties(updatePayload, nextProp, validAttributes);
+    return diffProperties(
+      updatePayload,
+      emptyObject$1,
+      nextProp,
+      validAttributes
+    );
   for (var i = 0; i < nextProp.length; i++)
     updatePayload = addNestedProperty(
       updatePayload,
@@ -1200,11 +1205,15 @@ function diffProperties(updatePayload, prevProps, nextProps, validAttributes) {
   return updatePayload;
 }
 function fastAddProperties(payload, props, validAttributes) {
-  var propKey;
-  for (propKey in props) {
-    var prop = props[propKey];
+  if (isArrayImpl(props)) {
+    for (var i = 0; i < props.length; i++)
+      payload = fastAddProperties(payload, props[i], validAttributes);
+    return payload;
+  }
+  for (i in props) {
+    var prop = props[i];
     if (void 0 !== prop) {
-      var attributeConfig = validAttributes[propKey];
+      var attributeConfig = validAttributes[i];
       if (null != attributeConfig) {
         var newValue = void 0;
         "function" === typeof prop
@@ -1214,25 +1223,18 @@ function fastAddProperties(payload, props, validAttributes) {
           : "function" === typeof attributeConfig.process
           ? (newValue = attributeConfig.process(prop))
           : "function" === typeof attributeConfig.diff && (newValue = prop);
-        if (void 0 !== newValue)
-          payload || (payload = {}), (payload[propKey] = newValue);
-        else if (isArrayImpl(prop))
-          for (newValue = 0; newValue < prop.length; newValue++)
-            payload = fastAddProperties(
-              payload,
-              prop[newValue],
-              attributeConfig
-            );
-        else payload = fastAddProperties(payload, prop, attributeConfig);
+        void 0 !== newValue
+          ? (payload || (payload = {}), (payload[i] = newValue))
+          : (payload = fastAddProperties(payload, prop, attributeConfig));
       }
     }
   }
   return payload;
 }
-function addProperties(updatePayload, props, validAttributes) {
+function create(props, validAttributes) {
   return enableAddPropertiesFastPath
-    ? fastAddProperties(updatePayload, props, validAttributes)
-    : diffProperties(updatePayload, emptyObject$1, props, validAttributes);
+    ? fastAddProperties(null, props, validAttributes)
+    : diffProperties(null, emptyObject$1, props, validAttributes);
 }
 function batchedUpdatesImpl(fn, bookkeeping) {
   return fn(bookkeeping);
@@ -1751,14 +1753,13 @@ function resolveUpdatePriority() {
 var scheduleTimeout = setTimeout,
   cancelTimeout = clearTimeout;
 function cloneHiddenInstance(instance) {
-  var node = instance.node;
-  var JSCompiler_inline_result = addProperties(
-    null,
-    { style: { display: "none" } },
-    instance.canonical.viewConfig.validAttributes
-  );
+  var node = instance.node,
+    updatePayload = create(
+      { style: { display: "none" } },
+      instance.canonical.viewConfig.validAttributes
+    );
   return {
-    node: cloneNodeWithNewProps(node, JSCompiler_inline_result),
+    node: cloneNodeWithNewProps(node, updatePayload),
     canonical: instance.canonical
   };
 }
@@ -7587,11 +7588,7 @@ function completeWork(current, workInProgress, renderLanes) {
         current = nextReactTag;
         nextReactTag += 2;
         renderLanes = getViewConfigForType(renderLanes);
-        newChildSet = addProperties(
-          null,
-          newProps,
-          renderLanes.validAttributes
-        );
+        newChildSet = create(newProps, renderLanes.validAttributes);
         oldProps = createNode(
           current,
           renderLanes.uiViewClassName,
@@ -11260,7 +11257,7 @@ var roots = new Map(),
   devToolsConfig$jscomp$inline_1205 = {
     findFiberByHostInstance: getInstanceFromNode,
     bundleType: 0,
-    version: "19.0.0-rc-cefeada5",
+    version: "19.0.0-rc-ae69ed52",
     rendererPackageName: "react-native-renderer",
     rendererConfig: {
       getInspectorDataForInstance: getInspectorDataForInstance,
@@ -11316,7 +11313,7 @@ var roots = new Map(),
   scheduleRoot: null,
   setRefreshHandler: null,
   getCurrentFiber: null,
-  reconcilerVersion: "19.0.0-rc-cefeada5"
+  reconcilerVersion: "19.0.0-rc-ae69ed52"
 });
 exports.createPortal = function (children, containerTag) {
   return createPortal$1(