pass failing test, fixes another

- a test was failing in ReactDOMServerIntegrationHooks while testing an effect; the behaviour of yields was different from browser and server when wrapped with act(). further, because of how we initialized modules, act() around renders wasn't working corrrectly. solved by passing in ReactTestUtils in initModules, and checking on the finally yielded values in the specific test.
- in ReactUpdates, while testing an infinite recursion detection, the test needed to be wrapped in an act(), which would have caused the recusrsion error to throw. solived by rethrowing the error from inside the act().

Author: threepointone

packages/react-dom/src/__tests__/ReactDOMServerIntegrationAttributes-test.js

@@ -13,6 +13,7 @@ const ReactDOMServerIntegrationUtils = require('./utils/ReactDOMServerIntegratio
 
 let React;
 let ReactDOM;
+let ReactTestUtils;
 let ReactDOMServer;
 
 function initModules() {
@@ -21,11 +22,13 @@ function initModules() {
   React = require('react');
   ReactDOM = require('react-dom');
   ReactDOMServer = require('react-dom/server');
+  ReactTestUtils = require('react-dom/test-utils');
 
   // Make them available to the helpers.
   return {
     ReactDOM,
     ReactDOMServer,
+    ReactTestUtils,
   };
 }
 

packages/react-dom/src/__tests__/ReactDOMServerIntegrationBasic-test.js

@@ -16,18 +16,21 @@ const TEXT_NODE_TYPE = 3;
 let React;
 let ReactDOM;
 let ReactDOMServer;
+let ReactTestUtils;
 
 function initModules() {
   // Reset warning cache.
   jest.resetModuleRegistry();
   React = require('react');
   ReactDOM = require('react-dom');
   ReactDOMServer = require('react-dom/server');
+  ReactTestUtils = require('react-dom/test-utils');
 
   // Make them available to the helpers.
   return {
     ReactDOM,
     ReactDOMServer,
+    ReactTestUtils,
   };
 }
 

packages/react-dom/src/__tests__/ReactDOMServerIntegrationCheckbox-test.js

@@ -16,18 +16,21 @@ const {disableInputAttributeSyncing} = require('shared/ReactFeatureFlags');
 let React;
 let ReactDOM;
 let ReactDOMServer;
+let ReactTestUtils;
 
 function initModules() {
   // Reset warning cache.
   jest.resetModuleRegistry();
   React = require('react');
   ReactDOM = require('react-dom');
   ReactDOMServer = require('react-dom/server');
+  ReactTestUtils = require('react-dom/test-utils');
 
   // Make them available to the helpers.
   return {
     ReactDOM,
     ReactDOMServer,
+    ReactTestUtils,
   };
 }
 

packages/react-dom/src/__tests__/ReactDOMServerIntegrationClassContextType-test.js

@@ -14,18 +14,21 @@ const ReactDOMServerIntegrationUtils = require('./utils/ReactDOMServerIntegratio
 let React;
 let ReactDOM;
 let ReactDOMServer;
+let ReactTestUtils;
 
 function initModules() {
   // Reset warning cache.
   jest.resetModuleRegistry();
   React = require('react');
   ReactDOM = require('react-dom');
   ReactDOMServer = require('react-dom/server');
+  ReactTestUtils = require('react-dom/test-utils');
 
   // Make them available to the helpers.
   return {
     ReactDOM,
     ReactDOMServer,
+    ReactTestUtils,
   };
 }
 

packages/react-dom/src/__tests__/ReactDOMServerIntegrationElements-test.js

@@ -16,17 +16,20 @@ const TEXT_NODE_TYPE = 3;
 let React;
 let ReactDOM;
 let ReactDOMServer;
+let ReactTestUtils;
 
 function initModules() {
   jest.resetModuleRegistry();
   React = require('react');
   ReactDOM = require('react-dom');
   ReactDOMServer = require('react-dom/server');
+  ReactTestUtils = require('react-dom/test-utils');
 
   // Make them available to the helpers.
   return {
     ReactDOM,
     ReactDOMServer,
+    ReactTestUtils,
   };
 }
 

packages/react-dom/src/__tests__/ReactDOMServerIntegrationFragment-test.js

@@ -14,18 +14,21 @@ const ReactDOMServerIntegrationUtils = require('./utils/ReactDOMServerIntegratio
 let React;
 let ReactDOM;
 let ReactDOMServer;
+let ReactTestUtils;
 
 function initModules() {
   // Reset warning cache.
   jest.resetModuleRegistry();
   React = require('react');
   ReactDOM = require('react-dom');
   ReactDOMServer = require('react-dom/server');
+  ReactTestUtils = require('react-dom/test-utils');
 
   // Make them available to the helpers.
   return {
     ReactDOM,
     ReactDOMServer,
+    ReactTestUtils,
   };
 }
 

packages/react-dom/src/__tests__/ReactDOMServerIntegrationHooks-test.internal.js

@@ -17,7 +17,7 @@ let React;
 let ReactFeatureFlags;
 let ReactDOM;
 let ReactDOMServer;
-let act;
+let ReactTestUtils;
 let useState;
 let useReducer;
 let useEffect;
@@ -42,7 +42,7 @@ function initModules() {
   React = require('react');
   ReactDOM = require('react-dom');
   ReactDOMServer = require('react-dom/server');
-  act = require('react-dom/test-utils').act;
+  ReactTestUtils = require('react-dom/test-utils');
   useState = React.useState;
   useReducer = React.useReducer;
   useEffect = React.useEffect;
@@ -69,6 +69,7 @@ function initModules() {
   return {
     ReactDOM,
     ReactDOMServer,
+    ReactTestUtils,
   };
 }
 
@@ -541,19 +542,29 @@ describe('ReactDOMServerHooks', () => {
   });
 
   describe('useEffect', () => {
+    const yields = [];
     itRenders('should ignore effects on the server', async render => {
       function Counter(props) {
         useEffect(() => {
-          yieldValue('should not be invoked');
+          yieldValue('invoked on client');
         });
         return <Text text={'Count: ' + props.count} />;
       }
-      await act(async () => {
-        const domNode = await render(<Counter count={0} />);
-        expect(clearYields()).toEqual(['Count: 0']);
-        expect(domNode.tagName).toEqual('SPAN');
-        expect(domNode.textContent).toEqual('Count: 0');
-      });
+
+      const domNode = await render(<Counter count={0} />);
+      yields.push(clearYields());
+      expect(domNode.tagName).toEqual('SPAN');
+      expect(domNode.textContent).toEqual('Count: 0');
+    });
+
+    it('verifies yields in order', () => {
+      expect(yields).toEqual([
+        ['Count: 0'], // server render
+        ['Count: 0'], // server stream
+        ['Count: 0', 'invoked on client'], // clean render
+        ['Count: 0', 'invoked on client'], // hydrated render
+        // nothing yielded for bad markup
+      ]);
     });
   });
 

packages/react-dom/src/__tests__/ReactDOMServerIntegrationInput-test.js

@@ -16,18 +16,21 @@ const {disableInputAttributeSyncing} = require('shared/ReactFeatureFlags');
 let React;
 let ReactDOM;
 let ReactDOMServer;
+let ReactTestUtils;
 
 function initModules() {
   // Reset warning cache.
   jest.resetModuleRegistry();
   React = require('react');
   ReactDOM = require('react-dom');
   ReactDOMServer = require('react-dom/server');
+  ReactTestUtils = require('react-dom/test-utils');
 
   // Make them available to the helpers.
   return {
     ReactDOM,
     ReactDOMServer,
+    ReactTestUtils,
   };
 }
 

packages/react-dom/src/__tests__/ReactDOMServerIntegrationLegacyContext-test.js

@@ -15,6 +15,7 @@ let PropTypes;
 let React;
 let ReactDOM;
 let ReactDOMServer;
+let ReactTestUtils;
 
 function initModules() {
   // Reset warning cache.
@@ -23,11 +24,13 @@ function initModules() {
   React = require('react');
   ReactDOM = require('react-dom');
   ReactDOMServer = require('react-dom/server');
+  ReactTestUtils = require('react-dom/test-utils');
 
   // Make them available to the helpers.
   return {
     ReactDOM,
     ReactDOMServer,
+    ReactTestUtils,
   };
 }
 

packages/react-dom/src/__tests__/ReactDOMServerIntegrationModes-test.js

@@ -14,18 +14,21 @@ const ReactDOMServerIntegrationUtils = require('./utils/ReactDOMServerIntegratio
 let React;
 let ReactDOM;
 let ReactDOMServer;
+let ReactTestUtils;
 
 function initModules() {
   // Reset warning cache.
   jest.resetModuleRegistry();
   React = require('react');
   ReactDOM = require('react-dom');
   ReactDOMServer = require('react-dom/server');
+  ReactTestUtils = require('react-dom/test-utils');
 
   // Make them available to the helpers.
   return {
     ReactDOM,
     ReactDOMServer,
+    ReactTestUtils,
   };
 }