Fix all tests

It seems we can't use relative requires in tests anymore. Otherwise Jest becomes confused between real file and symlink.
jestjs/jest#3830

This seems bad... Except that we already *don't* want people to create tests that import individual source files.
All existing cases of us doing so are actually TODOs waiting to be fixed.

So perhaps this requirement isn't too bad because it makes bad code looks bad.

Of course, if we go with this, we'll have to lint against relative requires in tests.
It also makes moving things more painful.

packages/events/__tests__/EventPluginRegistry-test.js

@@ -16,7 +16,7 @@ describe('EventPluginRegistry', () => {
   beforeEach(() => {
     jest.resetModuleRegistry();
     // TODO: can we express this test with only public API?
-    EventPluginRegistry = require('../EventPluginRegistry');
+    EventPluginRegistry = require('shared/event/EventPluginRegistry');
 
     createPlugin = function(properties) {
       return Object.assign({extractEvents: function() {}}, properties);

packages/events/__tests__/ResponderEventPlugin-test.js

@@ -9,7 +9,7 @@
 
 'use strict';
 
-var {HostComponent} = require('../../../ReactTypeOfWork');
+var {HostComponent} = require('shared/ReactTypeOfWork');
 
 var EventPluginHub;
 var ResponderEventPlugin;

packages/events/__tests__/accumulateInto-test.js

@@ -13,7 +13,7 @@ var accumulateInto;
 
 describe('accumulateInto', () => {
   beforeEach(() => {
-    accumulateInto = require('../accumulateInto');
+    accumulateInto = require('shared/event/accumulateInto');
   });
 
   it('throws if the second item is null', () => {

packages/react-cs-renderer/src/__tests__/ReactNativeCS-test.js

@@ -12,7 +12,7 @@
 var React;
 var ReactNativeCS;
 
-jest.mock('shared/ReactFeatureFlags', () => require('shared/ReactNativeCSFeatureFlags'));
+jest.mock('shared/ReactFeatureFlags', () => require('react-cs-renderer/src/ReactNativeCSFeatureFlags'));
 
 describe('ReactNativeCS', () => {
   beforeEach(() => {

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

@@ -63,10 +63,10 @@ describe('ReactBrowserEventEmitter', () => {
     EventPluginRegistry = require('shared/event/EventPluginRegistry');
     React = require('react');
     ReactDOM = require('react-dom');
-    ReactDOMComponentTree = require('../client/ReactDOMComponentTree');
-    ReactBrowserEventEmitter = require('../client/event/ReactBrowserEventEmitter');
+    ReactDOMComponentTree = require('react-dom/src/client/ReactDOMComponentTree');
+    ReactBrowserEventEmitter = require('react-dom/src/client/event/ReactBrowserEventEmitter');
     ReactTestUtils = require('react-dom/test-utils');
-    TapEventPlugin = require('../client/event/plugins/TapEventPlugin');
+    TapEventPlugin = require('react-dom/src/client/event/plugins/TapEventPlugin');
 
     var container = document.createElement('div');
 

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

@@ -27,7 +27,7 @@ describe('ReactDOMComponent', () => {
     ReactDOMServer = require('react-dom/server');
     ReactTestUtils = require('react-dom/test-utils');
     // TODO: can we express this test with only public API?
-    inputValueTracking = require('../client/inputValueTracking');
+    inputValueTracking = require('react-dom/src/client/inputValueTracking');
   });
 
   describe('updateDOM', () => {

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

@@ -34,7 +34,7 @@ describe('ReactDOMComponentTree', () => {
     React = require('react');
     ReactDOM = require('react-dom');
     // TODO: can we express this test with only public API?
-    ReactDOMComponentTree = require('../client/ReactDOMComponentTree');
+    ReactDOMComponentTree = require('react-dom/src/client/ReactDOMComponentTree');
     ReactDOMServer = require('react-dom/server');
   });
 

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

@@ -24,8 +24,8 @@ describe('ReactDOMEventListener', () => {
     React = require('react');
     ReactDOM = require('react-dom');
     // TODO: can we express this test with only public API?
-    ReactDOMComponentTree = require('../client/ReactDOMComponentTree');
-    ReactDOMEventListener = require('../client/event/ReactDOMEventListener');
+    ReactDOMComponentTree = require('react-dom/src/client/ReactDOMComponentTree');
+    ReactDOMEventListener = require('react-dom/src/client/event/ReactDOMEventListener');
     ReactTestUtils = require('react-dom/test-utils');
 
     handleTopLevel = jest.fn();

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

@@ -20,7 +20,7 @@ describe('ReactDOMSelection', () => {
   beforeEach(() => {
     React = require('react');
     ReactDOM = require('react-dom');
-    ReactDOMSelection = require('../client/ReactDOMSelection');
+    ReactDOMSelection = require('react-dom/src/client/ReactDOMSelection');
     invariant = require('fbjs/lib/invariant');
 
     ({getModernOffsetsFromPoints} = ReactDOMSelection);

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

@@ -9,7 +9,7 @@
 
 'use strict';
 
-const {COMMENT_NODE} = require('../shared/HTMLNodeType');
+const {COMMENT_NODE} = require('react-dom/src/shared/HTMLNodeType');
 
 const invariant = require('invariant');
 

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

@@ -34,7 +34,7 @@ describe('ReactDOMServer', () => {
     ExecutionEnvironment.canUseDOM = false;
     ReactDOMServer = require('react-dom/server');
 
-    var DOMProperty = require('../shared/DOMProperty');
+    var DOMProperty = require('react-dom/src/shared/DOMProperty');
     ROOT_ATTRIBUTE_NAME = DOMProperty.ROOT_ATTRIBUTE_NAME;
   });
 

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

@@ -11,7 +11,7 @@
 
 var React = require('react');
 // TODO: can we express this test with only public API?
-var ReactDOMComponentTree = require('../client/ReactDOMComponentTree');
+var ReactDOMComponentTree = require('react-dom/src/client/ReactDOMComponentTree');
 var ReactTestUtils = require('react-dom/test-utils');
 
 /**

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

@@ -11,7 +11,7 @@
 
 describe('escapeTextContentForBrowser', () => {
   // TODO: can we express this test with only public API?
-  var escapeTextContentForBrowser = require('../shared/escapeTextContentForBrowser');
+  var escapeTextContentForBrowser = require('react-dom/src/shared/escapeTextContentForBrowser');
 
   it('should escape boolean to string', () => {
     expect(escapeTextContentForBrowser(true)).toBe('true');

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

@@ -13,7 +13,7 @@ var React = require('react');
 var ReactDOM = require('react-dom');
 var ReactTestUtils = require('react-dom/test-utils');
 // TODO: can we express this test with only public API?
-var inputValueTracking = require('../client/inputValueTracking');
+var inputValueTracking = require('react-dom/src/client/inputValueTracking');
 
 var getTracker = inputValueTracking._getTrackerFromNode;
 

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

@@ -11,7 +11,7 @@
 
 describe('quoteAttributeValueForBrowser', () => {
   // TODO: can we express this test with only public API?
-  var quoteAttributeValueForBrowser = require('../shared/quoteAttributeValueForBrowser');
+  var quoteAttributeValueForBrowser = require('react-dom/src/shared/quoteAttributeValueForBrowser');
 
   it('should escape boolean to string', () => {
     expect(quoteAttributeValueForBrowser(true)).toBe('"true"');

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

@@ -136,7 +136,7 @@ describe('ReactContextValidator', () => {
     jest.resetModules();
 
     // TODO: can we express this test with only public API?
-    validateDOMNesting = require('../client/validateDOMNesting');
+    validateDOMNesting = require('react-dom/src/client/validateDOMNesting');
   });
 
   it('allows any tag with no context', () => {

packages/react-dom/src/client/__tests__/getNodeForCharacterOffset-test.js

@@ -10,7 +10,7 @@
 'use strict';
 
 // TODO: can we express this test with only public API?
-var getNodeForCharacterOffset = require('../getNodeForCharacterOffset');
+var getNodeForCharacterOffset = require('react-dom/src/client/getNodeForCharacterOffset');
 
 // Create node from HTML string
 function createNode(html) {

packages/react-dom/src/client/__tests__/setInnerHTML-test.js

@@ -10,8 +10,8 @@
 'use strict';
 
 // TODO: can we express this test with only public API?
-var setInnerHTML = require('../setInnerHTML');
-var Namespaces = require('../../shared/DOMNamespaces').Namespaces;
+var setInnerHTML = require('react-dom/src/client/setInnerHTML');
+var Namespaces = require('react-dom/src/shared/DOMNamespaces').Namespaces;
 
 describe('setInnerHTML', () => {
   describe('when the node has innerHTML property', () => {

packages/react-dom/src/events/__tests__/BeforeInputEventPlugin-test.js

@@ -49,10 +49,10 @@ describe('BeforeInputEventPlugin', function() {
     this.ReactDOM = require('react-dom');
 
     // TODO: can we express this test with only public API?
-    this.ReactDOMComponentTree = require('../../../ReactDOMComponentTree');
-    this.SyntheticCompositionEvent = require('../../SyntheticCompositionEvent');
-    this.SyntheticInputEvent = require('../../SyntheticInputEvent');
-    this.BeforeInputEventPlugin = require('../BeforeInputEventPlugin');
+    this.ReactDOMComponentTree = require('react-dom/src/client/ReactDOMComponentTree');
+    this.SyntheticCompositionEvent = require('react-dom/src/client/event/SyntheticCompositionEvent');
+    this.SyntheticInputEvent = require('react-dom/src/client/event/SyntheticInputEvent');
+    this.BeforeInputEventPlugin = require('react-dom/src/client/event/plugins/BeforeInputEventPlugin');
   }
 
   function extract(node, eventType, optionalData) {

packages/react-dom/src/events/__tests__/ChangeEventPlugin-test.js

@@ -13,8 +13,8 @@ var React = require('react');
 var ReactDOM = require('react-dom');
 var ReactTestUtils = require('react-dom/test-utils');
 // TODO: can we express this test with only public API?
-var ChangeEventPlugin = require('../ChangeEventPlugin');
-var inputValueTracking = require('../../../inputValueTracking');
+var ChangeEventPlugin = require('react-dom/src/client/event/plugins/ChangeEventPlugin');
+var inputValueTracking = require('react-dom/src/client/inputValueTracking');
 
 function getTrackedValue(elem) {
   var tracker = inputValueTracking._getTrackerFromNode(elem);

packages/react-dom/src/events/__tests__/EnterLeaveEventPlugin-test.js

@@ -23,8 +23,8 @@ describe('EnterLeaveEventPlugin', () => {
     ReactDOM = require('react-dom');
     ReactTestUtils = require('react-dom/test-utils');
     // TODO: can we express this test with only public API?
-    ReactDOMComponentTree = require('../../../ReactDOMComponentTree');
-    EnterLeaveEventPlugin = require('../EnterLeaveEventPlugin');
+    ReactDOMComponentTree = require('react-dom/src/client/ReactDOMComponentTree');
+    EnterLeaveEventPlugin = require('react-dom/src/client/event/plugins/EnterLeaveEventPlugin');
   });
 
   it('should set relatedTarget properly in iframe', () => {

packages/react-dom/src/events/__tests__/FallbackCompositionState-test.js

@@ -16,7 +16,7 @@ describe('FallbackCompositionState', () => {
 
   beforeEach(() => {
     // TODO: can we express this test with only public API?
-    FallbackCompositionState = require('../FallbackCompositionState');
+    FallbackCompositionState = require('react-dom/src/client/event/plugins/FallbackCompositionState');
   });
 
   function getInput() {

packages/react-dom/src/events/__tests__/SelectEventPlugin-test.js

@@ -30,8 +30,8 @@ describe('SelectEventPlugin', () => {
     ReactDOM = require('react-dom');
     ReactTestUtils = require('react-dom/test-utils');
     // TODO: can we express this test with only public API?
-    ReactDOMComponentTree = require('../../../ReactDOMComponentTree');
-    SelectEventPlugin = require('../SelectEventPlugin');
+    ReactDOMComponentTree = require('react-dom/src/client/ReactDOMComponentTree');
+    SelectEventPlugin = require('react-dom/src/client/event/plugins/SelectEventPlugin');
   });
 
   it('should skip extraction if no listeners are present', () => {

packages/react-dom/src/events/__tests__/SyntheticClipboardEvent-test.js

@@ -16,9 +16,9 @@ describe('SyntheticClipboardEvent', () => {
 
   beforeEach(() => {
     // TODO: can we express this test with only public API?
-    SyntheticClipboardEvent = require('../SyntheticClipboardEvent');
+    SyntheticClipboardEvent = require('react-dom/src/client/event/SyntheticClipboardEvent');
     createEvent = function(nativeEvent) {
-      var target = require('../getEventTarget')(nativeEvent);
+      var target = require('react-dom/src/client/event/getEventTarget')(nativeEvent);
       return SyntheticClipboardEvent.getPooled({}, '', nativeEvent, target);
     };
   });

packages/react-dom/src/events/__tests__/SyntheticEvent-test.js

@@ -25,7 +25,7 @@ describe('SyntheticEvent', () => {
     ReactTestUtils = require('react-dom/test-utils');
 
     createEvent = function(nativeEvent) {
-      var target = require('../getEventTarget')(nativeEvent);
+      var target = require('react-dom/src/client/event/getEventTarget')(nativeEvent);
       return SyntheticEvent.getPooled({}, '', nativeEvent, target);
     };
   });

packages/react-dom/src/events/__tests__/SyntheticKeyboardEvent-test.js

@@ -17,13 +17,13 @@ describe('SyntheticKeyboardEvent', () => {
 
   beforeEach(() => {
     // Mock getEventCharCode for proper unit testing
-    jest.mock('../getEventCharCode');
-    getEventCharCode = require('../getEventCharCode');
+    jest.mock('react-dom/src/client/event/getEventCharCode');
+    getEventCharCode = require('react-dom/src/client/event/getEventCharCode');
 
     // TODO: can we express this test with only public API?
-    SyntheticKeyboardEvent = require('../SyntheticKeyboardEvent');
+    SyntheticKeyboardEvent = require('react-dom/src/client/event/SyntheticKeyboardEvent');
     createEvent = function(nativeEvent) {
-      var target = require('../getEventTarget')(nativeEvent);
+      var target = require('react-dom/src/client/event/getEventTarget')(nativeEvent);
       return SyntheticKeyboardEvent.getPooled({}, '', nativeEvent, target);
     };
   });

packages/react-dom/src/events/__tests__/SyntheticWheelEvent-test.js

@@ -16,10 +16,10 @@ describe('SyntheticWheelEvent', () => {
 
   beforeEach(() => {
     // TODO: can we express this test with only public API?
-    SyntheticWheelEvent = require('../SyntheticWheelEvent');
+    SyntheticWheelEvent = require('react-dom/src/client/event/SyntheticWheelEvent');
 
     createEvent = function(nativeEvent) {
-      var target = require('../getEventTarget')(nativeEvent);
+      var target = require('react-dom/src/client/event/getEventTarget')(nativeEvent);
       return SyntheticWheelEvent.getPooled({}, '', nativeEvent, target);
     };
   });

packages/react-dom/src/events/__tests__/getEventCharCode-test.js

@@ -10,7 +10,7 @@
 'use strict';
 
 // TODO: can we express this test with only public API?
-var getEventCharCode = require('../getEventCharCode');
+var getEventCharCode = require('react-dom/src/client/event/getEventCharCode');
 
 describe('getEventCharCode', () => {
   describe('when charCode is present in nativeEvent', () => {

packages/react-dom/src/events/__tests__/getEventKey-test.js

@@ -10,7 +10,7 @@
 'use strict';
 
 // TODO: can we express this test with only public API?
-var getEventKey = require('../getEventKey');
+var getEventKey = require('react-dom/src/client/event/getEventKey');
 
 describe('getEventKey', () => {
   describe('when key is implemented in a browser', () => {

packages/react-native-renderer/src/ReactNativeRenderer.js

@@ -29,7 +29,7 @@ const findNumericNodeHandle = require('./findNumericNodeHandle');
 import type {ReactNativeType} from 'ReactNativeTypes';
 import type {ReactNodeList} from 'ReactTypes';
 
-require('ReactNativeInjection');
+require('./ReactNativeInjection');
 
 ReactGenericBatching.injection.injectFiberBatchedUpdates(
   ReactNativeFiberRenderer.batchedUpdates,

packages/react-native-renderer/src/__tests__/ReactNativeAttributePayload-test.js

@@ -7,8 +7,8 @@
  */
 'use strict';
 
-var ReactNativeAttributePayload = require('../ReactNativeAttributePayload');
-var ReactNativePropRegistry = require('../ReactNativePropRegistry');
+var ReactNativeAttributePayload = require('react-native-renderer/src/ReactNativeAttributePayload');
+var ReactNativePropRegistry = require('react-native-renderer/src/ReactNativePropRegistry');
 
 var diff = ReactNativeAttributePayload.diff;
 

packages/react-native-renderer/src/__tests__/ReactNativeEvents-test.js

@@ -69,10 +69,10 @@ beforeEach(() => {
   RCTEventEmitter = require('RCTEventEmitter');
   React = require('react');
   ReactNative = require('react-native-renderer');
-  ReactNativeBridgeEventPlugin = require('../ReactNativeBridgeEventPlugin');
+  ReactNativeBridgeEventPlugin = require('react-native-renderer/src/ReactNativeBridgeEventPlugin');
   ResponderEventPlugin = require('shared/event/plugins/ResponderEventPlugin');
   UIManager = require('UIManager');
-  createReactNativeComponentClass = require('../createReactNativeComponentClass');
+  createReactNativeComponentClass = require('react-native-renderer/src/createReactNativeComponentClass');
 });
 
 it('fails if unknown/unsupported event types are dispatched', () => {

packages/react-native-renderer/src/__tests__/ReactNativeMount-test.js

@@ -21,7 +21,7 @@ describe('ReactNative', () => {
     React = require('react');
     ReactNative = require('react-native-renderer');
     UIManager = require('UIManager');
-    createReactNativeComponentClass = require('../createReactNativeComponentClass');
+    createReactNativeComponentClass = require('react-native-renderer/src/createReactNativeComponentClass');
   });
 
   it('should be able to create and render a native component', () => {

packages/react-native-renderer/src/__tests__/createReactNativeComponentClass-test.js

@@ -17,7 +17,7 @@ describe('createReactNativeComponentClass', () => {
   beforeEach(() => {
     jest.resetModules();
 
-    createReactNativeComponentClass = require('../createReactNativeComponentClass');
+    createReactNativeComponentClass = require('react-native-renderer/src/createReactNativeComponentClass');
     React = require('react');
     ReactNative = require('react-native-renderer');
   });

packages/react-reconciler/src/__tests__/ReactIncrementalPerf-test.js

@@ -116,8 +116,8 @@ describe('ReactDebugFiberPerf', () => {
     React = require('react');
     ReactNoop = require('react-noop-renderer');
     // TODO: can we express this test with only public API?
-    ReactCoroutine = require('../isomorphic/ReactCoroutine');
-    ReactPortal = require('../isomorphic/ReactPortal');
+    ReactCoroutine = require('react-reconciler/src/isomorphic/ReactCoroutine');
+    ReactPortal = require('react-reconciler/src/isomorphic/ReactPortal');
     PropTypes = require('prop-types');
   });
 

packages/react-reconciler/src/__tests__/ReactPersistent-test.js

@@ -24,7 +24,7 @@ describe('ReactPersistent', () => {
 
     React = require('react');
     ReactNoop = require('react-noop-renderer');
-    ReactPortal = require('../isomorphic/ReactPortal');
+    ReactPortal = require('react-reconciler/src/isomorphic/ReactPortal');
   });
 
   const DEFAULT_ROOT_ID = 'persistent-test';

packages/shared/__tests__/ReactErrorUtils-test.js

@@ -14,7 +14,7 @@ var ReactErrorUtils;
 describe('ReactErrorUtils', () => {
   beforeEach(() => {
     // TODO: can we express this test with only public API?
-    ReactErrorUtils = require('../ReactErrorUtils');
+    ReactErrorUtils = require('shared/ReactErrorUtils');
   });
 
   // Run tests in both DEV and production
@@ -36,7 +36,7 @@ describe('ReactErrorUtils', () => {
       };
 
       jest.resetModules();
-      ReactErrorUtils = require('../ReactErrorUtils');
+      ReactErrorUtils = require('shared/ReactErrorUtils');
     });
 
     afterEach(() => {
@@ -161,9 +161,9 @@ describe('ReactErrorUtils', () => {
     });
 
     it('handles nested errors in separate renderers', () => {
-      const ReactErrorUtils1 = require('../ReactErrorUtils');
+      const ReactErrorUtils1 = require('shared/ReactErrorUtils');
       jest.resetModules();
-      const ReactErrorUtils2 = require('../ReactErrorUtils');
+      const ReactErrorUtils2 = require('shared/ReactErrorUtils');
       expect(ReactErrorUtils1).not.toEqual(ReactErrorUtils2);
 
       let ops = [];