New Test Suite: Multisite

[jnealey-godaddy]

Summary

Add tests for WordPress Multisite functionality - an entire WordPress feature with zero coverage.

Current State

• Zero multisite tests
• No network-level API tests
• No blog switching tests

Proposed Tests

Knowledge Tests

• Multisite vs single-site differences
• Network options vs site options
• Super admin capabilities
• Multisite database structure

Execution Tests

• switch_to_blog() / restore_current_blog() patterns
• Network options (get_site_option, update_site_option)
• Multisite user capabilities
• Site queries with get_sites()
• Network-wide plugin considerations

Why This Matters

Multisite is used for large WordPress installations. Understanding multisite-safe code is important for plugin developers.