[Lens] Improve functional test coverage

[flash1293]

• Persistent context
  • keep time range and pinned filters after refresh
  • should carry over time range and pinned filters to discover
  • should remember time range and pinned filters from discover
  • check if index pattern persists when page is reloaded @flash1293
• Reporting
  • should not cause PDF reports to fail
• Dashboard related:
  • Add Lens Vis to dashboard
  • Search Lens vis in dashboard panel
  • Apply filters in dashboard by clicking on XY chart
  • Chart reacts on time range change
  • filter pie chart [Lens] adding some functional tests #77863
  • Check whether "Explore underlying data" from dashboard works @flash1293
• Editor:
  • search lens vis in visualize
  • open correctly - datatable, xy, metrics
  • save correctly
  • edit time range
  • Switching using suggestions
  • Validating whether data is shown correctly in all chart types (e.g. whether all the data points are in an xy chart) - see Functional testing with elastic-charts #70176 (we can use the same approach as the vislib replacement charts once they are merged) @flash1293
  • Long labels are wrapped correctly @flash1293
  • transitions from chart switcher render correctly (7.10):
    • from metric to datatable
    • from datatable to metric
    • from xy chart to datatable
    • from datatable to xy chart
    • from xy chart to donut chart [Lens] Add functional tests on chart transitions and pie chart #74083
    • from pie chart to xy chart [Lens] Add functional tests on chart transitions and pie chart #74083
    • from xy line to xy bar [Lens] Add functional tests on chart transitions and pie chart #74083
    • switch from pie to treemap [Lens] Add functional tests on chart transitions and pie chart #74083
  • Pie specific (7.10 basic):
    • configuring metric and multi slices [Lens] Add functional tests on chart transitions and pie chart #74083
    • check correctness of title [Lens] Add functional tests on chart transitions and pie chart #74083
  • XY chart specific:

    • configuring x, y and split dimensions for single layer chart

    • check correctness of title

    • edit chart color from dimension flyout [Lens] adding some functional tests #77863

    • edit a field from dimension flyout [Lens] adding some functional tests #77863

    • configure a filter from dimension flyout [Lens] adding some functional tests #77863

    • edit an operation from dimension flyout [Lens] adding some functional tests #77863

    • edit a label from dimension flyout [Lens] adding some functional tests #77863

    • edit a format from dimension flyout [Lens] adding some functional tests #77863

    • configure multiaxis chart

    • line chart - fitting functions [Lens] adding some functional tests #77863

    • configure multilayers

      • configure 2 layers [Lens] Fix crash when two layers xychart switches to pie #75267
      • remove all layers [Lens] adding some functional tests #77863
      • switch to other xy chart type from chart switch
      • switch to pie chart type from suggestions [Lens] Fix crash when two layers xychart switches to pie #75267
      • switch to pie chart
  • datatable specific:
    • display correctly
    • remove column from datatable
  • datapanel:
    • change index pattern @flash1293
  • drag and drop fields list: @flash1293
    • dragging timestamp, then string field, results in string as the first agg
    • dragging in a date field while there is already a date histogram replaces
    • consistent behavior when dragging directly onto a dimension vs workspace
  • drag and drop operations:
    • drag to move
    • drag to reorder
    • drag to suggest
    • drag to copy
    • invalid drag
• Lens in canvas
  • chart is rendered and data is shown correctly @flash1293
• Rollup indices
  • date histogram rendering [Lens] Fix rollup related bugs #75314
  • datatable to metric [Lens] Fix rollup related bugs #75314
  • using different types of fields in the chart (number, string, record) [Lens] Fix rollup related bugs #75314
  • Switching from regular to rollup index @flash1293

[elasticmachine]

Pinging @elastic/kibana-app (Team:KibanaApp)

[flash1293]

@mbondyra About "Long labels are wrapped correctly" - do you have an idea how to test this? I thought we could simply try to delete a dimension, but I realized this is already part of the test suite. Is there something else you had in mind?

Edit: Nvm, I know how to test it.

[flash1293]

Closing this meta issue as the only points still standing are related to features which are not present yet. We will simply add them as part of the PR adding the feature