remove timezone prop requirement

also clean up unnecessary setup

closes MAT-976
flag=none

test plan:
-specs pass

Change-Id: I3774350af4a4087b269145c55ff1cc095f8b5b59
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/300013
Reviewed-by: Juan Chavez <juan.chavez@instructure.com>
QA-Review: Joe Hernandez <joe.hernandez@instructure.com>
Product-Review: Jake Oeding <jake.oeding@instructure.com>
Tested-by: Service Cloud Jenkins <svc.cloudjenkins@instructure.com>

jest/jest-setup.js

@@ -146,8 +146,7 @@ window.ENV = {
   use_rce_enhancements: true,
   FEATURES: {
     extended_submission_state: true
-  },
-  TIMEZONE: 'America/Denver'
+  }
 }
 
 Enzyme.configure({adapter: new Adapter()})

packages/canvas-rce/src/rce/RCE.js

@@ -197,7 +197,7 @@ RCE.propTypes = {
   // configurable default timeout value for flash alerts
   flashAlertTimeout: number,
   // user's timezone
-  timezone: string.isRequired,
+  timezone: string,
   // event handlers
   onFocus: func, // f(RCEWrapper component)
   onBlur: func, // f(event)

packages/canvas-rce/src/rce/RCEWrapper.js

@@ -273,7 +273,7 @@ class RCEWrapper extends React.Component {
     use_rce_icon_maker: PropTypes.bool,
     features: PropTypes.objectOf(PropTypes.bool),
     flashAlertTimeout: PropTypes.number,
-    timezone: PropTypes.string.isRequired
+    timezone: PropTypes.string
   }
 
   static defaultProps = {
@@ -283,7 +283,8 @@ class RCEWrapper extends React.Component {
     highContrastCSS: [],
     ltiTools: [],
     maxInitRenderedRCEs: -1,
-    features: {}
+    features: {},
+    timezone: Intl?.DateTimeFormat()?.resolvedOptions()?.timeZone
   }
 
   static skinCssInjected = false
@@ -375,8 +376,11 @@ class RCEWrapper extends React.Component {
   }
 
   getRequiredFeatureStatuses() {
-    const {new_equation_editor, new_math_equation_handling, rce_ux_improvements} =
-      this.props.features
+    const {
+      new_equation_editor = false,
+      new_math_equation_handling = false,
+      rce_ux_improvements = false
+    } = this.props.features
     return {new_equation_editor, new_math_equation_handling, rce_ux_improvements}
   }
 

packages/canvas-rce/src/rce/__tests__/RCE.test.js

@@ -21,15 +21,6 @@ import {render, waitFor} from '@testing-library/react'
 import RCE from '../RCE'
 import bridge from '../../bridge'
 
-const requiredProps = {
-  features: {
-    new_equation_editor: true,
-    new_math_equation_handling: true,
-    rce_ux_improvements: true
-  },
-  timezone: 'America/Denver'
-}
-
 describe('RCE', () => {
   let target
 
@@ -47,16 +38,13 @@ describe('RCE', () => {
   })
 
   it('bridges newly rendered editors', async () => {
-    render(<RCE textareaId="textarea3" {...requiredProps} />, target)
+    render(<RCE textareaId="textarea3" />, target)
     await waitFor(() => expect(bridge.activeEditor().constructor.displayName).toEqual('RCEWrapper'))
   })
 
   it('supports getCode() and setCode() on its ref', async () => {
     const rceRef = createRef(null)
-    render(
-      <RCE ref={rceRef} textareaId="textarea3" defaultContent="Hello RCE!" {...requiredProps} />,
-      target
-    )
+    render(<RCE ref={rceRef} textareaId="textarea3" defaultContent="Hello RCE!" />, target)
 
     await waitFor(() => expect(rceRef.current).not.toBeNull())
 

packages/canvas-rce/src/rce/__tests__/root.test.js

@@ -37,13 +37,7 @@ describe('RceModule', () => {
       editorOptions: () => {
         return {}
       },
-      textareaId: 'textarea_id',
-      features: {
-        new_equation_editor: true,
-        new_math_equation_handling: true,
-        rce_ux_improvements: true
-      },
-      timezone: 'America/Denver'
+      textareaId: 'textarea_id'
     }
   })
 

packages/canvas-rce/testcafe/entry.js

@@ -25,12 +25,6 @@ import {renderIntoDiv} from '../src'
 
 renderIntoDiv(document.getElementById('content'), {
   textareaId: 'textarea',
-  features: {
-    new_equation_editor: true,
-    new_math_equation_handling: true,
-    rce_ux_improvements: true
-  },
-  timezone: 'America/Denver',
   editorOptions: () => {
     return {
       plugins: [

ui/features/gradebook_history/react/__tests__/SearchResults.test.js

@@ -20,8 +20,6 @@ import React from 'react'
 import {render} from '@testing-library/react'
 import SearchResultsRow from '../SearchResultsRow'
 
-window.ENV = {}
-
 const item = {
   assignment: {
     anonymousGrading: false,

ui/features/outcome_management/react/Management/__tests__/index.test.js

@@ -73,8 +73,7 @@ describe('OutcomeManagementPanel', () => {
     window.ENV = {
       PERMISSIONS: {
         manage_outcomes: true
-      },
-      TIMEZONE: 'America/Denver'
+      }
     }
 
     defaultMocks = [

ui/shared/rce/react/CanvasRce.js

@@ -168,7 +168,7 @@ CanvasRce.propTypes = {
   // configurable default timeout value for flash alerts
   flashAlertTimeout: number,
   // user's timezone
-  timezone: string.isRequired,
+  timezone: string,
   // event handlers
   onFocus: func, // f(RCEWrapper component) (sorry)
   onBlur: func, // f(event)