Adds pixels to track main VPN funnels

[diegoreymendez]

Task/Issue URL: https://app.asana.com/0/0/1206737255908394/f

iOS PR: duckduckgo/iOS#2543
BSK PR: duckduckgo/BrowserServicesKit#698

Description

Add pixels to better track all main VPN funnels:

• VPN Controller Start (installation, onboarding)
• VPN Tunnel Start
• VPN Tunnel Update (change location, etc)

Testing

Setup

• Open Console.app
• Filter by 👾
• To make clearing the tunnel-side pixels easier use: open ~/Library/Group\ Containers/HKE973VLUW.com.duckduckgo.macos.browser.network-protection.system-extension.debug/Library/Preferences/HKE973VLUW.com.duckduckgo.macos.browser.network-protection.system-extension.debug.plist

Test 1: start success

1. Reset the relevant pixels:

m_mac_netp_controller_start_attempt
m_mac_netp_controller_start_success
m_mac_netp_controller_start_failure
m_mac_netp_tunnel_start_attempt
m_mac_netp_tunnel_start_failure
m_mac_netp_tunnel_start_success

2. Fully uninstall the VPN or Debug Menu > Network Protection > Reset > Reset All State Keeping Invite
3. Start the tunnel.
4. Complete the installation.
5. Make sure you see these as both daily and count (order of success ones can vary):

• m_mac_netp_controller_start_attempt
• m_mac_netp_controller_start_success
• m_mac_netp_tunnel_start_attempt
• m_mac_netp_tunnel_start_success

Test 2: controller start failure

1. Reset the relevant pixels:

m_mac_netp_controller_start_attempt
m_mac_netp_controller_start_success
m_mac_netp_controller_start_failure
m_mac_netp_tunnel_start_attempt
m_mac_netp_tunnel_start_failure
m_mac_netp_tunnel_start_success

2. Force an error by throwing here.
3. Fully uninstall the VPN or Debug Menu > Network Protection > Reset > Reset All State Keeping Invite
4. Start the tunnel. The installation should fail.
5. Make sure you see these as both daily and count:

• m_mac_netp_controller_start_attempt
• m_mac_netp_controller_start_failure (this should include error info)

Test 3: tunnel start failure

1. Reset the relevant pixels:

m_mac_netp_controller_start_attempt
m_mac_netp_controller_start_success
m_mac_netp_controller_start_failure
m_mac_netp_tunnel_start_attempt
m_mac_netp_tunnel_start_failure
m_mac_netp_tunnel_start_success

2. Force error by throwing here.
3. Fully uninstall the VPN or Debug Menu > Network Protection > Reset > Reset All State Keeping Invite
4. Start the tunnel. The installation should fail.
5. Make sure you see these as both daily and count:

• m_mac_netp_controller_start_attempt
• m_mac_netp_controller_start_success
• m_mac_netp_tunnel_start_attempt
• m_mac_netp_tunnel_start_falure (this should include error info)

Test 4: tunnel update success

1. Reset the relevant pixels:

m_mac_netp_tunnel_update_attempt
m_mac_netp_tunnel_update_success
m_mac_netp_tunnel_update_failure

2. Fully uninstall the VPN or Debug Menu > Network Protection > Reset > Reset All State Keeping Invite
3. Start the tunnel.
4. Once connected change your geolocation.
5. Make sure you see these as both daily and count:

• m_mac_netp_tunnel_update_attempt
• m_mac_netp_tunnel_update_success

Test 5: tunnel update failure

1. Reset the relevant pixels:

m_mac_netp_tunnel_update_attempt
m_mac_netp_tunnel_update_success
m_mac_netp_tunnel_update_failure

2. Force an error by throwing here.
3. Fully uninstall the VPN or Debug Menu > Network Protection > Reset > Reset All State Keeping Invite
4. Start the tunnel.
5. Once connected change your geolocation.
6. Make sure you see these as both daily and count:

• m_mac_netp_tunnel_update_attempt
• m_mac_netp_tunnel_update_failure (this should include error info)

---

Internal references:

Pull Request Review Checklist
Software Engineering Expectations
Technical Design Template
Pull Request Documentation

[samsymons]

Looks good, but we'll need to create a BSK hotfix release with those changes before merging this to the release branch.