From 876c292d220d9e8bbfba0db9b2225fb30742b683 Mon Sep 17 00:00:00 2001
From: Paulo Reis <paulojreis@gmail.com>
Date: Tue, 29 Sep 2020 12:08:49 +0100
Subject: [PATCH] Add compile status indicator to new React-based errors UI.

GitOrigin-RevId: 545953e156d589a56ffd038bb7a40bba97770d06
---
 services/web/app/views/project/editor/pdf.pug |   6 +-
 .../frontend/extracted-translation-keys.json  |   6 +-
 .../preview/components/preview-log-entry.js   |   3 +-
 .../components/preview-logs-toggle-button.js  | 110 +++++++++++++++
 .../preview/components/preview-pane.js        |  28 +++-
 .../components/preview-recompile-button.js    |  35 ++---
 .../preview/components/preview-toolbar.js     |  42 ++++--
 .../web/frontend/js/ide/pdf/PdfManager.js     |   2 +-
 .../js/ide/pdf/controllers/PdfController.js   |   4 +-
 .../frontend/stylesheets/app/editor/pdf.less  |  22 +++
 .../frontend/stylesheets/core/variables.less  |   2 +-
 .../preview-logs-toggle-button.test.js        | 126 ++++++++++++++++++
 12 files changed, 334 insertions(+), 52 deletions(-)
 create mode 100644 services/web/frontend/js/features/preview/components/preview-logs-toggle-button.js
 create mode 100644 services/web/test/frontend/features/preview/components/preview-logs-toggle-button.test.js

diff --git a/services/web/app/views/project/editor/pdf.pug b/services/web/app/views/project/editor/pdf.pug
index 7333dc6871..121468cec5 100644
--- a/services/web/app/views/project/editor/pdf.pug
+++ b/services/web/app/views/project/editor/pdf.pug
@@ -5,16 +5,16 @@ div.full-size.pdf(ng-controller="PdfController")
 				isAutoCompileOn: autocompile_enabled,
 				isCompiling: pdf.compiling,
 				isDraftModeOn: draft,
-				isSyntaxCheckOn: stop_on_validation_error
+				isSyntaxCheckOn: stop_on_validation_error,
+				logEntries: pdf.logEntries ? pdf.logEntries : {}
 			}`
-			log-entries="pdf.logEntries ? pdf.logEntries.all : []"
 			on-recompile="recompile"
 			on-run-syntax-check-now="runSyntaxCheckNow"
 			on-set-auto-compile="setAutoCompile"
 			on-set-draft-mode="setDraftMode"
 			on-set-syntax-check="setSyntaxCheck"
 			on-toggle-logs="toggleLogs"
-			should-show-logs="shouldShowLogs"
+			show-logs="shouldShowLogs"
 		)
 	else
 		.toolbar.toolbar-pdf(ng-class="{ 'changes-to-autocompile': changesToAutoCompile && !autoCompileLintingError }")
diff --git a/services/web/frontend/extracted-translation-keys.json b/services/web/frontend/extracted-translation-keys.json
index 12aa76d6e8..2b66f41da2 100644
--- a/services/web/frontend/extracted-translation-keys.json
+++ b/services/web/frontend/extracted-translation-keys.json
@@ -21,5 +21,9 @@
   "loading",
   "no_messages",
   "send_first_message",
-  "your_message"
+  "your_message",
+  "your_project_has_errors",
+  "view_warnings",
+  "view_logs",
+  "view_pdf"
 ]
diff --git a/services/web/frontend/js/features/preview/components/preview-log-entry.js b/services/web/frontend/js/features/preview/components/preview-log-entry.js
index b1c66bd429..e0c57ddc24 100644
--- a/services/web/frontend/js/features/preview/components/preview-log-entry.js
+++ b/services/web/frontend/js/features/preview/components/preview-log-entry.js
@@ -1,6 +1,7 @@
 import React from 'react'
 import PropTypes from 'prop-types'
 import classNames from 'classnames'
+import Icon from '../../../shared/components/icon'
 
 function PreviewLogEntry({ file, line, message, content, raw, level }) {
   const logEntryClasses = classNames('alert', {
@@ -11,7 +12,7 @@ function PreviewLogEntry({ file, line, message, content, raw, level }) {
   return (
     <div className={logEntryClasses}>
       <span className="line-no">
-        <i className="fa fa-link" aria-hidden="true" />
+        <Icon type="link" />
         {file ? <span>{file}</span> : null}
         {line ? <span>, {line}</span> : null}
       </span>
diff --git a/services/web/frontend/js/features/preview/components/preview-logs-toggle-button.js b/services/web/frontend/js/features/preview/components/preview-logs-toggle-button.js
new file mode 100644
index 0000000000..f815dbbc02
--- /dev/null
+++ b/services/web/frontend/js/features/preview/components/preview-logs-toggle-button.js
@@ -0,0 +1,110 @@
+import React from 'react'
+import PropTypes from 'prop-types'
+import classNames from 'classnames'
+import { useTranslation } from 'react-i18next'
+import Icon from '../../../shared/components/icon'
+
+function PreviewLogsToggleButton({
+  onToggle,
+  showLogs,
+  logsState: { nErrors, nWarnings }
+}) {
+  const toggleButtonClasses = classNames('btn', 'btn-xs', 'btn-toggle-logs', {
+    'btn-danger': !showLogs && nErrors,
+    'btn-warning': !showLogs && !nErrors && nWarnings,
+    'btn-default': showLogs || (!nErrors && !nWarnings)
+  })
+
+  function handleOnClick(e) {
+    e.currentTarget.blur()
+    onToggle()
+  }
+
+  return (
+    <button
+      type="button"
+      className={toggleButtonClasses}
+      onClick={handleOnClick}
+    >
+      {showLogs ? (
+        <ViewPdfButton />
+      ) : (
+        <CompilationResultIndicator nErrors={nErrors} nWarnings={nWarnings} />
+      )}
+    </button>
+  )
+}
+
+function CompilationResultIndicator({ nErrors, nWarnings }) {
+  if (nErrors) {
+    return <ErrorsCompilationResultIndicator nErrors={nErrors} />
+  } else if (nWarnings) {
+    return <WarningsCompilationResultIndicator nWarnings={nWarnings} />
+  } else {
+    return <ViewLogsButton />
+  }
+}
+
+function ErrorsCompilationResultIndicator({ nErrors }) {
+  const { t } = useTranslation()
+  return (
+    <>
+      <Icon type="file-text-o" />
+      <span className="btn-toggle-logs-label">
+        {`${t('your_project_has_errors')} (${nErrors > 9 ? '9+' : nErrors})`}
+      </span>
+    </>
+  )
+}
+
+function WarningsCompilationResultIndicator({ nWarnings }) {
+  const { t } = useTranslation()
+  return (
+    <>
+      <Icon type="file-text-o" />
+      <span className="btn-toggle-logs-label">
+        {`${t('view_warnings')} (${nWarnings > 9 ? '9+' : nWarnings})`}
+      </span>
+    </>
+  )
+}
+
+function ViewLogsButton() {
+  const { t } = useTranslation()
+  return (
+    <>
+      <Icon type="file-text-o" />
+      <span className="btn-toggle-logs-label">{t('view_logs')}</span>
+    </>
+  )
+}
+
+function ViewPdfButton() {
+  const { t } = useTranslation()
+  return (
+    <>
+      <Icon type="file-pdf-o" />
+      <span className="btn-toggle-logs-label">{t('view_pdf')}</span>
+    </>
+  )
+}
+
+PreviewLogsToggleButton.propTypes = {
+  onToggle: PropTypes.func.isRequired,
+  logsState: PropTypes.shape({
+    nErrors: PropTypes.number.isRequired,
+    nWarnings: PropTypes.number.isRequired,
+    nLogEntries: PropTypes.number.isRequired
+  }),
+  showLogs: PropTypes.bool.isRequired
+}
+
+ErrorsCompilationResultIndicator.propTypes = {
+  nErrors: PropTypes.number.isRequired
+}
+
+WarningsCompilationResultIndicator.propTypes = {
+  nWarnings: PropTypes.number.isRequired
+}
+
+export default PreviewLogsToggleButton
diff --git a/services/web/frontend/js/features/preview/components/preview-pane.js b/services/web/frontend/js/features/preview/components/preview-pane.js
index bfde5698c1..6a7c12ab9e 100644
--- a/services/web/frontend/js/features/preview/components/preview-pane.js
+++ b/services/web/frontend/js/features/preview/components/preview-pane.js
@@ -5,19 +5,33 @@ import PreviewLogsPane from './preview-logs-pane'
 
 function PreviewPane({
   compilerState,
-  logEntries,
   onRecompile,
   onRunSyntaxCheckNow,
   onSetAutoCompile,
   onSetDraftMode,
   onSetSyntaxCheck,
   onToggleLogs,
-  shouldShowLogs
+  showLogs
 }) {
+  const nErrors =
+    compilerState.logEntries && compilerState.logEntries.errors
+      ? compilerState.logEntries.errors.length
+      : 0
+  const nWarnings =
+    compilerState.logEntries && compilerState.logEntries.warnings
+      ? compilerState.logEntries.warnings.length
+      : 0
+  const nLogEntries =
+    compilerState.logEntries && compilerState.logEntries.all
+      ? compilerState.logEntries.all.length
+      : 0
+
   return (
     <>
       <PreviewToolbar
         compilerState={compilerState}
+        logsState={{ nErrors, nWarnings, nLogEntries }}
+        showLogs={showLogs}
         onRecompile={onRecompile}
         onRunSyntaxCheckNow={onRunSyntaxCheckNow}
         onSetAutoCompile={onSetAutoCompile}
@@ -25,7 +39,9 @@ function PreviewPane({
         onSetSyntaxCheck={onSetSyntaxCheck}
         onToggleLogs={onToggleLogs}
       />
-      {shouldShowLogs ? <PreviewLogsPane logEntries={logEntries} /> : null}
+      {showLogs ? (
+        <PreviewLogsPane logEntries={compilerState.logEntries.all} />
+      ) : null}
     </>
   )
 }
@@ -35,16 +51,16 @@ PreviewPane.propTypes = {
     isAutoCompileOn: PropTypes.bool.isRequired,
     isCompiling: PropTypes.bool.isRequired,
     isDraftModeOn: PropTypes.bool.isRequired,
-    isSyntaxCheckOn: PropTypes.bool.isRequired
+    isSyntaxCheckOn: PropTypes.bool.isRequired,
+    logEntries: PropTypes.object.isRequired
   }),
-  logEntries: PropTypes.array,
   onRecompile: PropTypes.func.isRequired,
   onRunSyntaxCheckNow: PropTypes.func.isRequired,
   onSetAutoCompile: PropTypes.func.isRequired,
   onSetDraftMode: PropTypes.func.isRequired,
   onSetSyntaxCheck: PropTypes.func.isRequired,
   onToggleLogs: PropTypes.func.isRequired,
-  shouldShowLogs: PropTypes.bool.isRequired
+  showLogs: PropTypes.bool.isRequired
 }
 
 export default PreviewPane
diff --git a/services/web/frontend/js/features/preview/components/preview-recompile-button.js b/services/web/frontend/js/features/preview/components/preview-recompile-button.js
index 6112653968..d715b22f9e 100644
--- a/services/web/frontend/js/features/preview/components/preview-recompile-button.js
+++ b/services/web/frontend/js/features/preview/components/preview-recompile-button.js
@@ -1,8 +1,8 @@
 import React from 'react'
 import PropTypes from 'prop-types'
-import classNames from 'classnames'
 import { Dropdown, MenuItem } from 'react-bootstrap'
 import { useTranslation } from 'react-i18next'
+import Icon from '../../../shared/components/icon'
 
 function PreviewRecompileButton({
   compilerState: {
@@ -19,20 +19,6 @@ function PreviewRecompileButton({
 }) {
   const { t } = useTranslation()
 
-  const iconClasses = {
-    recompile: classNames('fa', 'fa-refresh', {
-      'fa-spin': isCompiling
-    }),
-    autoCompileOn: classNames('fa', 'fa-fw', { 'fa-check': isAutoCompileOn }),
-    autoCompileOff: classNames('fa', 'fa-fw', { 'fa-check': !isAutoCompileOn }),
-    compileModeNormal: classNames('fa', 'fa-fw', {
-      'fa-check': !isDraftModeOn
-    }),
-    compileModeDraft: classNames('fa', 'fa-fw', { 'fa-check': isDraftModeOn }),
-    syntaxCheckOn: classNames('fa', 'fa-fw', { 'fa-check': isSyntaxCheckOn }),
-    syntaxCheckOff: classNames('fa', 'fa-fw', { 'fa-check': !isSyntaxCheckOn })
-  }
-
   function handleSelectAutoCompileOn() {
     onSetAutoCompile(true)
   }
@@ -60,7 +46,7 @@ function PreviewRecompileButton({
   return (
     <Dropdown id="pdf-recompile-dropdown" className="btn-recompile-group">
       <button className="btn btn-recompile" onClick={onRecompile}>
-        <i className={iconClasses.recompile} aria-hidden="true" />
+        <Icon type="refresh" spin={isCompiling} />
         {isCompiling ? (
           <span className="btn-recompile-label">
             {t('compiling')}
@@ -74,33 +60,33 @@ function PreviewRecompileButton({
       <Dropdown.Menu>
         <MenuItem header>{t('auto_compile')}</MenuItem>
         <MenuItem onSelect={handleSelectAutoCompileOn}>
-          <i className={iconClasses.autoCompileOn} aria-hidden="true" />
+          <Icon type={isAutoCompileOn ? 'check' : ''} modifier="fw" />
           {t('on')}
         </MenuItem>
         <MenuItem onSelect={handleSelectAutoCompileOff}>
-          <i className={iconClasses.autoCompileOff} aria-hidden="true" />
+          <Icon type={!isAutoCompileOn ? 'check' : ''} modifier="fw" />
           {t('off')}
         </MenuItem>
         <MenuItem header>{t('compile_mode')}</MenuItem>
         <MenuItem onSelect={handleSelectDraftModeOff}>
-          <i className={iconClasses.compileModeNormal} aria-hidden="true" />
+          <Icon type={!isDraftModeOn ? 'check' : ''} modifier="fw" />
           {t('normal')}
         </MenuItem>
         <MenuItem onSelect={handleSelectDraftModeOn}>
-          <i className={iconClasses.compileModeDraft} aria-hidden="true" />
+          <Icon type={isDraftModeOn ? 'check' : ''} modifier="fw" />
           {t('fast')} <span className="subdued">[draft]</span>
         </MenuItem>
         <MenuItem header>Syntax Checks</MenuItem>
         <MenuItem onSelect={handleSelectSyntaxCheckOn}>
-          <i className={iconClasses.syntaxCheckOn} aria-hidden="true" />
+          <Icon type={isSyntaxCheckOn ? 'check' : ''} modifier="fw" />
           {t('stop_on_validation_error')}
         </MenuItem>
         <MenuItem onSelect={handleSelectSyntaxCheckOff}>
-          <i className={iconClasses.syntaxCheckOff} aria-hidden="true" />
+          <Icon type={!isSyntaxCheckOn ? 'check' : ''} modifier="fw" />
           {t('ignore_validation_errors')}
         </MenuItem>
         <MenuItem onSelect={onRunSyntaxCheckNow}>
-          <i className="fa fa-fw" aria-hidden="true" />
+          <Icon type="" modifier="fw" />
           {t('run_syntax_check_now')}
         </MenuItem>
       </Dropdown.Menu>
@@ -113,7 +99,8 @@ PreviewRecompileButton.propTypes = {
     isAutoCompileOn: PropTypes.bool.isRequired,
     isCompiling: PropTypes.bool.isRequired,
     isDraftModeOn: PropTypes.bool.isRequired,
-    isSyntaxCheckOn: PropTypes.bool.isRequired
+    isSyntaxCheckOn: PropTypes.bool.isRequired,
+    logEntries: PropTypes.object.isRequired
   }),
   onRecompile: PropTypes.func.isRequired,
   onRunSyntaxCheckNow: PropTypes.func.isRequired,
diff --git a/services/web/frontend/js/features/preview/components/preview-toolbar.js b/services/web/frontend/js/features/preview/components/preview-toolbar.js
index babefeb156..3e8c0b1021 100644
--- a/services/web/frontend/js/features/preview/components/preview-toolbar.js
+++ b/services/web/frontend/js/features/preview/components/preview-toolbar.js
@@ -1,29 +1,38 @@
 import React from 'react'
 import PropTypes from 'prop-types'
 import PreviewRecompileButton from './preview-recompile-button'
+import PreviewLogsToggleButton from './preview-logs-toggle-button'
 
 function PreviewToolbar({
   compilerState,
+  logsState,
   onRecompile,
   onRunSyntaxCheckNow,
   onSetAutoCompile,
   onSetDraftMode,
   onSetSyntaxCheck,
-  onToggleLogs
+  onToggleLogs,
+  showLogs
 }) {
   return (
     <div className="toolbar toolbar-pdf">
-      <PreviewRecompileButton
-        compilerState={compilerState}
-        onRecompile={onRecompile}
-        onRunSyntaxCheckNow={onRunSyntaxCheckNow}
-        onSetAutoCompile={onSetAutoCompile}
-        onSetDraftMode={onSetDraftMode}
-        onSetSyntaxCheck={onSetSyntaxCheck}
-      />
-      <button className="btn btn-sm btn-secondary" onClick={onToggleLogs}>
-        Toggle logs
-      </button>
+      <div className="toolbar-pdf-left">
+        <PreviewRecompileButton
+          compilerState={compilerState}
+          onRecompile={onRecompile}
+          onRunSyntaxCheckNow={onRunSyntaxCheckNow}
+          onSetAutoCompile={onSetAutoCompile}
+          onSetDraftMode={onSetDraftMode}
+          onSetSyntaxCheck={onSetSyntaxCheck}
+        />
+      </div>
+      <div className="toolbar-pdf-right">
+        <PreviewLogsToggleButton
+          logsState={logsState}
+          showLogs={showLogs}
+          onToggle={onToggleLogs}
+        />
+      </div>
     </div>
   )
 }
@@ -33,8 +42,15 @@ PreviewToolbar.propTypes = {
     isAutoCompileOn: PropTypes.bool.isRequired,
     isCompiling: PropTypes.bool.isRequired,
     isDraftModeOn: PropTypes.bool.isRequired,
-    isSyntaxCheckOn: PropTypes.bool.isRequired
+    isSyntaxCheckOn: PropTypes.bool.isRequired,
+    logEntries: PropTypes.object.isRequired
   }),
+  logsState: PropTypes.shape({
+    nErrors: PropTypes.number.isRequired,
+    nWarnings: PropTypes.number.isRequired,
+    nLogEntries: PropTypes.number.isRequired
+  }),
+  showLogs: PropTypes.bool.isRequired,
   onRecompile: PropTypes.func.isRequired,
   onRunSyntaxCheckNow: PropTypes.func.isRequired,
   onSetAutoCompile: PropTypes.func.isRequired,
diff --git a/services/web/frontend/js/ide/pdf/PdfManager.js b/services/web/frontend/js/ide/pdf/PdfManager.js
index 64407144d8..ea2a661b2d 100644
--- a/services/web/frontend/js/ide/pdf/PdfManager.js
+++ b/services/web/frontend/js/ide/pdf/PdfManager.js
@@ -25,7 +25,7 @@ export default (PdfManager = class PdfManager {
       failure: false, // PDF failed to compile
       compiling: false,
       uncompiled: true,
-      logEntries: [],
+      logEntries: {},
       logEntryAnnotations: {},
       rawLog: '',
       view: null, // 'pdf' 'logs'
diff --git a/services/web/frontend/js/ide/pdf/controllers/PdfController.js b/services/web/frontend/js/ide/pdf/controllers/PdfController.js
index 023154a398..52dd8fbb39 100644
--- a/services/web/frontend/js/ide/pdf/controllers/PdfController.js
+++ b/services/web/frontend/js/ide/pdf/controllers/PdfController.js
@@ -271,7 +271,7 @@ App.controller('PdfController', function(
     }
     // if the previous run was a check, clear the error logs
     if ($scope.check) {
-      $scope.pdf.logEntries = []
+      $scope.pdf.logEntries = {}
     }
     // keep track of whether this is a compile or check
     $scope.check = !!options.check
@@ -622,7 +622,7 @@ App.controller('PdfController', function(
 
     // output the results
     function handleError() {
-      $scope.pdf.logEntries = []
+      $scope.pdf.logEntries = {}
       $scope.pdf.rawLog = ''
     }
 
diff --git a/services/web/frontend/stylesheets/app/editor/pdf.less b/services/web/frontend/stylesheets/app/editor/pdf.less
index bdfc283582..d1b62ff879 100644
--- a/services/web/frontend/stylesheets/app/editor/pdf.less
+++ b/services/web/frontend/stylesheets/app/editor/pdf.less
@@ -33,6 +33,28 @@
   border-bottom: 0;
 }
 
+.toolbar-pdf-left,
+.toolbar-pdf-right {
+  display: flex;
+  align-items: center;
+  align-self: stretch;
+  flex: 1 1 100%;
+}
+
+.toolbar-pdf-right {
+  flex: 1 0 0px;
+}
+
+.btn-toggle-logs {
+  &:focus,
+  &:active:focus {
+    outline: none;
+  }
+}
+.btn-toggle-logs-label {
+  padding-left: @line-height-computed / 4;
+}
+
 .pdf {
   background-color: @pdf-bg;
 }
diff --git a/services/web/frontend/stylesheets/core/variables.less b/services/web/frontend/stylesheets/core/variables.less
index e9105d7ef4..c8f2083ca2 100644
--- a/services/web/frontend/stylesheets/core/variables.less
+++ b/services/web/frontend/stylesheets/core/variables.less
@@ -207,7 +207,7 @@
 @btn-info-border: transparent;
 
 @btn-warning-color: #fff;
-@btn-warning-bg: @ol-red;
+@btn-warning-bg: @orange;
 @btn-warning-border: transparent;
 
 @btn-danger-color: #fff;
diff --git a/services/web/test/frontend/features/preview/components/preview-logs-toggle-button.test.js b/services/web/test/frontend/features/preview/components/preview-logs-toggle-button.test.js
new file mode 100644
index 0000000000..f47351691f
--- /dev/null
+++ b/services/web/test/frontend/features/preview/components/preview-logs-toggle-button.test.js
@@ -0,0 +1,126 @@
+import React from 'react'
+import { screen, render } from '@testing-library/react'
+
+import PreviewLogsToggleButton from '../../../../../frontend/js/features/preview/components/preview-logs-toggle-button'
+
+describe('<PreviewLogsToggleButton />', function() {
+  describe('basic toggle functionality', function() {
+    const logsState = {
+      nErrors: 0,
+      nWarnings: 0,
+      nLogEntries: 0
+    }
+    const onToggleLogs = () => {}
+    it('should render a view logs button when previewing the PDF', function() {
+      const showLogs = false
+      render(
+        <PreviewLogsToggleButton
+          logsState={logsState}
+          showLogs={showLogs}
+          onToggle={onToggleLogs}
+        />
+      )
+      screen.getByRole('button', { name: 'View logs' })
+    })
+    it('should render a view PDF button when viewing logs', function() {
+      const showLogs = true
+      render(
+        <PreviewLogsToggleButton
+          logsState={logsState}
+          showLogs={showLogs}
+          onToggle={onToggleLogs}
+        />
+      )
+      screen.getByRole('button', { name: 'View PDF' })
+    })
+  })
+  describe('compile status indicator', function() {
+    const showLogs = false
+    const onToggleLogs = () => {}
+    it('should render a view logs button by default', function() {
+      const logsState = {
+        nErrors: 0,
+        nWarnings: 0,
+        nLogEntries: 0
+      }
+      render(
+        <PreviewLogsToggleButton
+          logsState={logsState}
+          showLogs={showLogs}
+          onToggle={onToggleLogs}
+        />
+      )
+      screen.getByRole('button', { name: 'View logs' })
+    })
+
+    it('should render an error status message when there are errors', function() {
+      const logsState = {
+        nErrors: 1,
+        nWarnings: 0,
+        nLogEntries: 0
+      }
+      render(
+        <PreviewLogsToggleButton
+          logsState={logsState}
+          showLogs={showLogs}
+          onToggle={onToggleLogs}
+        />
+      )
+      screen.getByRole('button', {
+        name: `Your project has errors (${logsState.nErrors})`
+      })
+    })
+
+    it('should render an error status message when there are both errors and warnings', function() {
+      const logsState = {
+        nErrors: 1,
+        nWarnings: 1,
+        nLogEntries: 0
+      }
+      render(
+        <PreviewLogsToggleButton
+          logsState={logsState}
+          showLogs={showLogs}
+          onToggle={onToggleLogs}
+        />
+      )
+      screen.getByRole('button', {
+        name: `Your project has errors (${logsState.nErrors})`
+      })
+    })
+
+    it('should render a warning status message when there are warnings but no errors', function() {
+      const logsState = {
+        nErrors: 0,
+        nWarnings: 1,
+        nLogEntries: 0
+      }
+      render(
+        <PreviewLogsToggleButton
+          logsState={logsState}
+          showLogs={showLogs}
+          onToggle={onToggleLogs}
+        />
+      )
+      screen.getByRole('button', {
+        name: `View warnings (${logsState.nWarnings})`
+      })
+    })
+
+    it('should render 9+ errors when there are more than nine errors', function() {
+      const logsState = {
+        nErrors: 10,
+        nWarnings: 0,
+        nLogEntries: 0
+      }
+      render(
+        <PreviewLogsToggleButton
+          logsState={logsState}
+          showLogs={showLogs}
+          onToggle={onToggleLogs}
+        />
+      )
+      screen.getByRole('button', { name: `Your project has errors (9+)` })
+    })
+  })
+})