[4.4] Fix newsfeed html view

[muhme]

Summary of Changes

Fix newsfeed html view as down-merge from 5.1-dev. This follows #43879 and is extracted from and pre-condition for #43722 to use joomla-cypress 1.1.1 in 4.4-dev.

Testing Instructions

The warning is displayed in A) the frontenend view and B) the System Test (with a speaking checkForPhpNoticesOrWarnings). Verify the warning before patching. After patching, check that there are no more warnings.

Actual result BEFORE applying this Pull Request

A) Manual Test

• Create a news feed in backend with Components | News Feeds | Feeds | New
• Open /index.php?option=com_newsfeeds&view=newsfeed&id=1 (ID comes from new created news feed) shows the PHP Warning message:

B) System Test

As preparation for the Cypress System Test install speaking checkForPhpNoticesOrWarnings in overwriting lines 74 ... 89 in node_modules/joomla-cypress/src/support.jswith the following lines:

  Cypress.Commands.add('checkForPhpNoticesOrWarnings', () => {
    cy.log('**Check for PHP notices and warnings**')

    cy.document().then((doc) => {
      const pageSource = doc.documentElement.innerHTML
      // Search for PHP problem keywords in bold style with colon and collect the found keyword and the message
      const regex = /<b>(Warning|Deprecated|Notice|Strict standards)<\/b>:(.*?)(<br|$)/
      const match = regex.exec(pageSource)
      if (match) {
        // Directly fail with the reason, the keyword found and report the PHP problem message, e.g.
        // Error: Unwanted PHP Warning: "Attempt to read property \"id\" on null in <b>/joomla-cms/components/com_newsfeeds/src/View/Category/HtmlView.php</b> on line <b>92</b>"
        throw new Error(`Unwanted PHP ${match?.[1]}: ${JSON.stringify(match?.[2])}`)
      }
    })

    cy.log('--Check for PHP notices and warnings--')
  })

Run the test specifications:

npx cypress run --spec tests/System/integration/site/components/com_newsfeed/NewsFeed.cy.js

Fails with:

Running:  NewsFeed.cy.js                                                                  (1 of 1)

  Test in frontend that the newsfeeds details view
    ✓ can display a feed in a menu item from joomla.org (530ms)
    1) "after each" hook for "can display a feed without a menu item from joomla.org"

  1 passing (1s)
  1 failing

  1) Test in frontend that the newsfeeds details view
       "after each" hook for "can display a feed without a menu item from joomla.org":
     Error: Unwanted PHP Warning: "  Attempt to read property \"id\" on null in <b>/Users/hlu/Desktop/no_backup/joomla-cms/components/com_newsfeeds/src/View/Newsfeed/HtmlView.php</b> on line <b>264</b>"

💡 With overwritten speaking checkForPhpNoticesOrWarnings, if you run the entire system tests, there are four failures before this PR and only three after. The remaining three errors are fixed by #43879 and #43881.

Expected result AFTER applying this Pull Request

No warnings in A) frontend view or B) System Test.

Link to documentations

Please select:

• Documentation link for docs.joomla.org:

• No documentation changes for docs.joomla.org needed

• Pull Request link for manual.joomla.org:

• No documentation changes for manual.joomla.org needed

Up-Merging

@LadySolveig @bembelimen there is no up-merge required as it is only a down-merge from 5.1-dev

[alikon]

I have tested this item ✅ successfully on 68097e9

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[fgsw]

I have tested this item ✅ successfully on 68097e9

Manual Test (A) only.

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_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/43880.}

[laoneo]

RTC

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_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/43880.}

[laoneo]

Thanks!