diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 6915b12c4f73..714731b75c09 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -66,7 +66,7 @@ jobs:
           sha: ${{ steps.get-head-sha.outputs.SHA }}
 
   fetch:
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     name: Fetch analysis
     needs: [ analyze-javascript ]
 
@@ -82,7 +82,7 @@ jobs:
           echo 'EOF' >> $GITHUB_ENV
 
   notify:
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     name: Send notifications
     needs: [ fetch ]
 
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 136ffce16736..e8033c86ca1f 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -16,7 +16,7 @@ env:
 
 jobs:
   TS:
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     timeout-minutes: 60
     steps:
     - name: Get sources
@@ -71,7 +71,7 @@ jobs:
       run: pnpm exec nx lint
 
   JS:
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     timeout-minutes: 60
     steps:
     - name: Get sources
@@ -113,7 +113,7 @@ jobs:
       run: pnpm exec nx lint-js
 
   texts:
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     timeout-minutes: 60
     steps:
     - name: Get sources
@@ -149,7 +149,7 @@ jobs:
       run: pnpm exec nx lint-texts
 
   component_exports:
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     timeout-minutes: 10
     steps:
     - name: Get sources
@@ -231,7 +231,7 @@ jobs:
       run: pnpm exec nx run-many -t lint -p devextreme-angular devextreme-react devextreme-vue
 
   notify:
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     name: Send notifications
     needs: [TS, JS, texts, component_exports]
     if: github.event_name != 'pull_request' && contains(needs.*.result, 'failure')
diff --git a/.github/workflows/packages_publishing.yml b/.github/workflows/packages_publishing.yml
index 9ace56ff8f43..fd1940048b24 100644
--- a/.github/workflows/packages_publishing.yml
+++ b/.github/workflows/packages_publishing.yml
@@ -140,7 +140,7 @@ jobs:
           pnpm dist-tag add $PACKAGE_NAME@$PACKAGE_VERSION latest --registry=https://npm.pkg.github.com;
 
   notify:
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     name: Send notifications
     needs: [ build, publish ]
     if: failure()
diff --git a/.github/workflows/paths.yml b/.github/workflows/paths.yml
index 68c34febfc36..9a02d0604c17 100644
--- a/.github/workflows/paths.yml
+++ b/.github/workflows/paths.yml
@@ -16,7 +16,7 @@ env:
 
 jobs:
   checks:
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     timeout-minutes: 5
     steps:
     - name: Get sources
@@ -31,7 +31,7 @@ jobs:
     #     if (( ${#RESULT} )); then printf "The following filenames are longer than $MAX_LENGTH characters:\n${RESULT}" && exit 1; fi;
 
   notify:
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     name: Send notifications
     needs: [checks]
     if: github.event_name != 'pull_request' && contains(needs.*.result, 'failure')
diff --git a/.github/workflows/pr-filter-stubs.yml b/.github/workflows/pr-filter-stubs.yml
index 77a2bfd46a1a..7aa2e2dd9c72 100644
--- a/.github/workflows/pr-filter-stubs.yml
+++ b/.github/workflows/pr-filter-stubs.yml
@@ -45,7 +45,7 @@ jobs:
     name: 'main'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   # lint.yml
@@ -98,98 +98,98 @@ jobs:
     name: 'Constel export'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   qunit_tests2:
     name: 'Constel misc'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   qunit_tests3:
     name: 'Constel ui'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   qunit_tests4:
     name: 'Constel ui.scheduler-US/Pacific'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   qunit_tests5:
     name: 'Constel misc-no-csp'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   qunit_tests6:
     name: 'Constel ui.widgets-no-csp'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   qunit_tests7:
     name: 'Constel ui.editors'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   qunit_tests8:
     name: 'Constel ui.grid'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   qunit_tests9:
     name: 'Constel ui.scheduler'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   qunit_tests10:
     name: 'ui-shadow-dom'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   qunit_tests11:
     name: 'ui.widgets-shadow-dom'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   qunit_tests12:
     name: 'ui.editors-shadow-dom'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   qunit_tests13:
     name: 'ui.grid-shadow-dom'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   qunit_tests14:
     name: 'ui.scheduler-shadow-dom'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   # demos_visual_tests.yml
@@ -197,49 +197,49 @@ jobs:
     name: 'jquery(1/3)-screenshots-material.blue.light'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   demos_visual_tests2:
     name: 'jquery(2/3)-screenshots-material.blue.light'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   demos_visual_tests3:
     name: 'jquery(3/3)-screenshots-material.blue.light'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   demos_visual_tests4:
     name: 'jquery(1/3)-screenshots-fluent.blue.light'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   demos_visual_tests5:
     name: 'jquery(2/3)-screenshots-fluent.blue.light'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   demos_visual_tests6:
     name: 'jquery(3/3)-screenshots-fluent.blue.light'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   demos_visual_tests7:
     name: 'jquery-accessibility-fluent.blue.light'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   # testcafe_tests.yml
@@ -247,132 +247,132 @@ jobs:
     name: 'accessibility - fluent'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   testcafe_tests2:
     name: 'common - fluent'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   testcafe_tests3:
     name: 'generic'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   testcafe_tests4:
     name: 'material'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   testcafe_tests5:
     name: 'material - compact'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   testcafe_tests6:
     name: 'cardView - fluent'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   testcafe_tests7:
     name: 'dataGrid (1/4) - fluent'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   testcafe_tests8:
     name: 'dataGrid (2/4) - fluent'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   testcafe_tests9:
     name: 'dataGrid (3/4) - fluent'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   testcafe_tests10:
     name: 'dataGrid (4/4) - fluent'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   testcafe_test11:
     name: 'editors - fluent'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   testcafe_tests12:
     name: 'navigation - fluent'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   testcafe_tests13:
     name: 'scheduler / common (1/3) - fluent'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   testcafe_tests14:
     name: 'scheduler / common (2/3) - fluent'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   testcafe_tests15:
     name: 'scheduler / common (3/3) - fluent'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   testcafe_tests16:
     name: 'scheduler / viewOffset (1/2) - fluent'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   testcafe_tests17:
     name: 'scheduler / viewOffset (2/2) - fluent'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   testcafe_tests18:
     name: 'scheduler / timezones (Europe/Berlin) - fluent'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
   testcafe_tests19:
     name: 'scheduler / timezones (America/Los_Angeles) - fluent'
     needs: [ changesSegregation ]
     if: false
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
       - run: exit 1
diff --git a/.github/workflows/qunit_tests.yml b/.github/workflows/qunit_tests.yml
index fc7afad0ef7e..5c00c0e0f426 100644
--- a/.github/workflows/qunit_tests.yml
+++ b/.github/workflows/qunit_tests.yml
@@ -161,7 +161,7 @@ jobs:
           maxWorkers: ${{ (matrix.constel == 'ui.editors' || matrix.constel == 'ui.widgets') && '3' || '' }}
 
   notify:
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     name: Send notifications
     needs: [
       build,
diff --git a/.github/workflows/renovate_autoapprove.yml b/.github/workflows/renovate_autoapprove.yml
index ae480d6969a6..25e4afe05ad7 100644
--- a/.github/workflows/renovate_autoapprove.yml
+++ b/.github/workflows/renovate_autoapprove.yml
@@ -5,7 +5,7 @@ on:
 
 jobs:
   auto-approve:
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     steps:
     - uses: hmarr/auto-approve-action@v4.0.0
       if: github.actor == 'renovate-bot' || github.actor == 'renovate[bot]'
diff --git a/.github/workflows/renovation.yml b/.github/workflows/renovation.yml
index 7b9cbad1b744..43a32724620f 100644
--- a/.github/workflows/renovation.yml
+++ b/.github/workflows/renovation.yml
@@ -16,7 +16,7 @@ env:
 
 jobs:
   jest-tests:
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     timeout-minutes: 60
     steps:
     - name: Get sources
@@ -58,7 +58,7 @@ jobs:
       run: pnpm exec nx test-jest devextreme
 
   notify:
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     name: Send notifications
     needs: [jest-tests]
     if: github.event_name != 'pull_request' && contains(needs.*.result, 'failure')
diff --git a/.github/workflows/styles.yml b/.github/workflows/styles.yml
index a023406d6c25..3beb28426858 100644
--- a/.github/workflows/styles.yml
+++ b/.github/workflows/styles.yml
@@ -16,7 +16,7 @@ env:
 
 jobs:
   Tests:
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     timeout-minutes: 60
     steps:
     - name: Get sources
@@ -51,7 +51,7 @@ jobs:
       run: pnpm exec nx test devextreme-scss
 
   notify:
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     name: Send notifications
     needs: [Tests]
     if: github.event_name != 'pull_request' && contains(needs.*.result, 'failure')
diff --git a/.github/workflows/testcafe_tests.yml b/.github/workflows/testcafe_tests.yml
index a21679c29fbf..b41a9b709e8f 100644
--- a/.github/workflows/testcafe_tests.yml
+++ b/.github/workflows/testcafe_tests.yml
@@ -19,7 +19,7 @@ env:
 jobs:
   check-should-run:
     name: Check if tests should run
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     outputs:
       should-run: ${{ steps.check.outputs.should-run }}
       styles-changed: ${{ steps.changes.outputs.styles }}
@@ -228,7 +228,7 @@ jobs:
         if-no-files-found: ignore
 
   merge-artifacts:
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     needs: testcafe
     if: ${{ always() }}
 
@@ -250,7 +250,7 @@ jobs:
         delete-merged: true
 
   notify:
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     name: Send notifications
     needs: [build, testcafe]
     if: github.event_name != 'pull_request' && contains(needs.*.result, 'failure')
diff --git a/.github/workflows/themebuilder_tests.yml b/.github/workflows/themebuilder_tests.yml
index 9806a92d4c9f..c4bd9e20bad5 100644
--- a/.github/workflows/themebuilder_tests.yml
+++ b/.github/workflows/themebuilder_tests.yml
@@ -16,7 +16,7 @@ env:
 
 jobs:
   test:
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     env:
       NODE_OPTIONS: --max-old-space-size=8192
     timeout-minutes: 30
@@ -71,7 +71,7 @@ jobs:
       run: pnpm exec stylelint --config tests/bundles-stylelint-config.json "../devextreme/artifacts/**/dx.material.blue.light.css"
 
   notify:
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     name: Send notifications
     needs: [test]
     if: github.event_name != 'pull_request' && contains(needs.*.result, 'failure')
diff --git a/.github/workflows/ts_declarations.yml b/.github/workflows/ts_declarations.yml
index bd18e03754b0..608dfba36626 100644
--- a/.github/workflows/ts_declarations.yml
+++ b/.github/workflows/ts_declarations.yml
@@ -100,7 +100,7 @@ jobs:
         pnpm run validate-declarations
 
   notify:
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     name: Send notifications
     needs: [check-ts-bundle, validate-declarations]
     if: github.event_name != 'pull_request' && contains(needs.*.result, 'failure')
diff --git a/.github/workflows/visual-tests-demos.yml b/.github/workflows/visual-tests-demos.yml
index c9e9934bc345..e26796f103fe 100644
--- a/.github/workflows/visual-tests-demos.yml
+++ b/.github/workflows/visual-tests-demos.yml
@@ -266,7 +266,7 @@ jobs:
       needs.determine-framework-tests-scope.result == 'success' &&
       needs.determine-framework-tests-scope.outputs.framework-tests-scope != 'none' &&
       needs.build-devextreme.result == 'success'
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     timeout-minutes: 30
 
     steps:
@@ -329,7 +329,7 @@ jobs:
       needs.determine-framework-tests-scope.outputs.framework-tests-scope != 'none' &&
       needs.build-devextreme.result == 'success'
 
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     timeout-minutes: 60
 
     steps:
diff --git a/apps/demos/Demos/Diagram/AdvancedDataBinding/test-code.js b/apps/demos/Demos/Diagram/AdvancedDataBinding/test-code.js
new file mode 100644
index 000000000000..934aca4e8f97
--- /dev/null
+++ b/apps/demos/Demos/Diagram/AdvancedDataBinding/test-code.js
@@ -0,0 +1 @@
+testUtils.postponeUntilFound('.dx-accordion-item-title-caption', 100, 10000).then(() => testUtils.postpone(1000));
diff --git a/apps/demos/Demos/Diagram/CustomShapesWithIcons/test-code.js b/apps/demos/Demos/Diagram/CustomShapesWithIcons/test-code.js
new file mode 100644
index 000000000000..934aca4e8f97
--- /dev/null
+++ b/apps/demos/Demos/Diagram/CustomShapesWithIcons/test-code.js
@@ -0,0 +1 @@
+testUtils.postponeUntilFound('.dx-accordion-item-title-caption', 100, 10000).then(() => testUtils.postpone(1000));
diff --git a/apps/demos/Demos/Diagram/CustomShapesWithTemplates/test-code.js b/apps/demos/Demos/Diagram/CustomShapesWithTemplates/test-code.js
new file mode 100644
index 000000000000..934aca4e8f97
--- /dev/null
+++ b/apps/demos/Demos/Diagram/CustomShapesWithTemplates/test-code.js
@@ -0,0 +1 @@
+testUtils.postponeUntilFound('.dx-accordion-item-title-caption', 100, 10000).then(() => testUtils.postpone(1000));
diff --git a/apps/demos/Demos/Diagram/CustomShapesWithTemplatesWithEditing/test-code.js b/apps/demos/Demos/Diagram/CustomShapesWithTemplatesWithEditing/test-code.js
new file mode 100644
index 000000000000..934aca4e8f97
--- /dev/null
+++ b/apps/demos/Demos/Diagram/CustomShapesWithTemplatesWithEditing/test-code.js
@@ -0,0 +1 @@
+testUtils.postponeUntilFound('.dx-accordion-item-title-caption', 100, 10000).then(() => testUtils.postpone(1000));
diff --git a/apps/demos/Demos/Diagram/ImagesInShapes/test-code.js b/apps/demos/Demos/Diagram/ImagesInShapes/test-code.js
new file mode 100644
index 000000000000..934aca4e8f97
--- /dev/null
+++ b/apps/demos/Demos/Diagram/ImagesInShapes/test-code.js
@@ -0,0 +1 @@
+testUtils.postponeUntilFound('.dx-accordion-item-title-caption', 100, 10000).then(() => testUtils.postpone(1000));
diff --git a/apps/demos/Demos/Diagram/NodesAndEdgesArrays/test-code.js b/apps/demos/Demos/Diagram/NodesAndEdgesArrays/test-code.js
new file mode 100644
index 000000000000..934aca4e8f97
--- /dev/null
+++ b/apps/demos/Demos/Diagram/NodesAndEdgesArrays/test-code.js
@@ -0,0 +1 @@
+testUtils.postponeUntilFound('.dx-accordion-item-title-caption', 100, 10000).then(() => testUtils.postpone(1000));
diff --git a/apps/demos/Demos/Diagram/NodesArrayHierarchicalStructure/test-code.js b/apps/demos/Demos/Diagram/NodesArrayHierarchicalStructure/test-code.js
new file mode 100644
index 000000000000..934aca4e8f97
--- /dev/null
+++ b/apps/demos/Demos/Diagram/NodesArrayHierarchicalStructure/test-code.js
@@ -0,0 +1 @@
+testUtils.postponeUntilFound('.dx-accordion-item-title-caption', 100, 10000).then(() => testUtils.postpone(1000));
diff --git a/apps/demos/Demos/Diagram/NodesArrayPlainStructure/test-code.js b/apps/demos/Demos/Diagram/NodesArrayPlainStructure/test-code.js
new file mode 100644
index 000000000000..934aca4e8f97
--- /dev/null
+++ b/apps/demos/Demos/Diagram/NodesArrayPlainStructure/test-code.js
@@ -0,0 +1 @@
+testUtils.postponeUntilFound('.dx-accordion-item-title-caption', 100, 10000).then(() => testUtils.postpone(1000));
diff --git a/apps/demos/Demos/Diagram/Overview/test-code.js b/apps/demos/Demos/Diagram/Overview/test-code.js
new file mode 100644
index 000000000000..934aca4e8f97
--- /dev/null
+++ b/apps/demos/Demos/Diagram/Overview/test-code.js
@@ -0,0 +1 @@
+testUtils.postponeUntilFound('.dx-accordion-item-title-caption', 100, 10000).then(() => testUtils.postpone(1000));
diff --git a/apps/demos/Demos/Diagram/UICustomization/test-code.js b/apps/demos/Demos/Diagram/UICustomization/test-code.js
new file mode 100644
index 000000000000..934aca4e8f97
--- /dev/null
+++ b/apps/demos/Demos/Diagram/UICustomization/test-code.js
@@ -0,0 +1 @@
+testUtils.postponeUntilFound('.dx-accordion-item-title-caption', 100, 10000).then(() => testUtils.postpone(1000));
diff --git a/apps/demos/Demos/Diagram/WebAPIService/test-code.js b/apps/demos/Demos/Diagram/WebAPIService/test-code.js
new file mode 100644
index 000000000000..934aca4e8f97
--- /dev/null
+++ b/apps/demos/Demos/Diagram/WebAPIService/test-code.js
@@ -0,0 +1 @@
+testUtils.postponeUntilFound('.dx-accordion-item-title-caption', 100, 10000).then(() => testUtils.postpone(1000));