Comments: Hide zero-count status filters on the Comments list table

[AbdiTolesa]

Trac ticket: https://core.trac.wordpress.org/ticket/66260

Summary

WP_Posts_List_Table::get_views() hides any status filter link (other than "All") whose post count is zero. WP_Comments_List_Table::get_views() had no equivalent, so "Pending", "Approved", "Spam", "Trash", and "Mine" were always rendered even at (0).

Per review feedback, applying the Posts list table's logic as-is doesn't fit the Comments screen, which is primarily a moderation queue rather than a plain content list:

• Hiding "Pending (0)" removes a reassuring "inbox zero" signal and could read as moderation being broken.
• Hiding "Approved (0)" removes the default working view.
• Hiding whichever status is currently selected (e.g. landing on ?comment_status=moderated from a stale notification, or ?comment_status=spam right after "Empty Spam") leaves the page with no visible "current" tab at all — no indication of what's being filtered.

Changes

• In class-wp-comments-list-table.php: "Mine", "Spam", and "Trash" are hidden when their count is zero (unless currently active). "All", "Pending", and "Approved" always stay visible regardless of count. The currently active $comment_status is never hidden, even at zero count.
• Removed test_get_views_should_return_views_by_default (added for #42066), which asserted the old all-statuses-always-shown behavior this change intentionally revises.
• Updated/added tests in wpCommentsListTable.php:
  • test_get_views_should_hide_empty_status_links: with zero comments, "All", "Pending", and "Approved" are present; "Mine", "Spam", "Trash" are not.
  • test_get_views_should_show_status_link_with_nonzero_count: with one approved comment, "Approved" and "Pending" are shown; "Spam"/"Trash" stay hidden.
  • test_get_views_should_not_hide_the_currently_active_status: with comment_status=spam and zero spam comments, "Spam" is still present and marked current.

Test plan

• php -l on both changed files.
• Ran Tests_Admin_wpCommentsListTable — 12 tests, 36 assertions, all passing.
• Verified the active-view test fails without the $status !== $comment_status exception and passes with it.

🤖 Generated with Claude Code

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