# Sequence 1 defaults to track for "t1".
packet {
  trusted_packet_sequence_id: 1
  timestamp: 0
  incremental_state_cleared: true
  first_packet_on_sequence: true
  track_descriptor {
    uuid: 1
    parent_uuid: 10
    thread {
      pid: 5
      tid: 1
      thread_name: "t1"
    }
  }
  trace_packet_defaults {
    track_event_defaults {
      track_uuid: 1
    }
  }
}
# Sequence 2 defaults to track for "t2".
packet {
  trusted_packet_sequence_id: 2
  timestamp: 0
  incremental_state_cleared: true
  first_packet_on_sequence: true
  track_descriptor {
    uuid: 2
    parent_uuid: 10
    thread {
      pid: 5
      tid: 2
      thread_name: "t2"
    }
  }
  trace_packet_defaults {
    track_event_defaults {
      track_uuid: 2
    }
  }
}
# Both thread tracks are nested underneath this process track.
packet {
  trusted_packet_sequence_id: 1
  timestamp: 0
  track_descriptor {
    uuid: 10
    process {
      pid: 5
      process_name: "p1"
    }
    chrome_process {
      host_app_package_name: "host_app"
    }
  }
}
# And we have an async track underneath the process too.
packet {
  trusted_packet_sequence_id: 1
  timestamp: 0
  track_descriptor {
    uuid: 11
    parent_uuid: 10
    name: "async"
  }
}
packet {
  trusted_packet_sequence_id: 1
  timestamp: 100
  track_descriptor {
    uuid: 12
    parent_uuid: 10
    name: "async2"
  }
}
packet {
  trusted_packet_sequence_id: 2
  timestamp: 200
  track_descriptor {
    uuid: 12
    parent_uuid: 10
    name: "async2"
  }
}

# Threads also can have child async tracks.
packet {
  trusted_packet_sequence_id: 1
  timestamp: 200
  track_descriptor {
    uuid: 14
    parent_uuid: 2
    name: "async3"
  }
}

# Should appear on default track "t1".
packet {
  trusted_packet_sequence_id: 1
  timestamp: 1000
  track_event {
    categories: "cat"
    name: "event1_on_t1"
    type: 3
  }
}
# Should appear on default track "t2".
packet {
  trusted_packet_sequence_id: 2
  timestamp: 2000
  track_event {
    categories: "cat"
    name: "event1_on_t2"
    type: 3
  }
}
# Should appear on overridden track "t2".
packet {
  trusted_packet_sequence_id: 1
  timestamp: 3000
  track_event {
    track_uuid: 2
    categories: "cat"
    name: "event2_on_t2"
    type: 3
  }
}
# Should appear on process track.
packet {
  trusted_packet_sequence_id: 1
  timestamp: 4000
  track_event {
    track_uuid: 10
    categories: "cat"
    name: "event1_on_p1"
    type: 3
  }
}
# Should appear on async track.
packet {
  trusted_packet_sequence_id: 1
  timestamp: 5000
  track_event {
    track_uuid: 11
    categories: "cat"
    name: "event1_on_async"
    type: 3
  }
}
# Event for the "async2" track starting on one thread and ending on another.
packet {
  trusted_packet_sequence_id: 1
  timestamp: 5100
  track_event {
    track_uuid: 12
    categories: "cat"
    name: "event1_on_async2"
    type: 1
  }
}
packet {
  trusted_packet_sequence_id: 2
  timestamp: 5200
  track_event {
    track_uuid: 12
    categories: "cat"
    name: "event1_on_async2"
    type: 2
  }
}

# If we later see another track descriptor for tid 1, but with a different uuid,
# we should detect tid reuse and start a new thread.
packet {
  trusted_packet_sequence_id: 3
  timestamp: 10000
  incremental_state_cleared: true
  first_packet_on_sequence: true
  track_descriptor {
    uuid: 3
    parent_uuid: 10
    thread {
      pid: 5
      tid: 1
      thread_name: "t3"
    }
  }
}
# Should appear on t3.
packet {
  trusted_packet_sequence_id: 3
  timestamp: 11000
  track_event {
    track_uuid: 3
    categories: "cat"
    name: "event1_on_t3"
    type: 3
  }
}

# If we later see another track descriptor for pid 5, but with a different uuid,
# we should detect pid reuse and start a new process.
packet {
  trusted_packet_sequence_id: 4
  timestamp: 20000
  incremental_state_cleared: true
  track_descriptor {
    uuid: 20
    process {
      pid: 5
      process_name: "p2"
    }
  }
}
# Should appear on p2.
packet {
  trusted_packet_sequence_id: 4
  timestamp: 21000
  track_event {
    track_uuid: 20
    categories: "cat"
    name: "event1_on_p2"
    type: 3
  }
}
# Another thread t4 in the new process.
packet {
  trusted_packet_sequence_id: 4
  timestamp: 22000
  incremental_state_cleared: true
  track_descriptor {
    uuid: 21
    parent_uuid: 20
    thread {
      pid: 5
      tid: 4
      thread_name: "t4"
    }
  }
}
# Should appear on t4.
packet {
  trusted_packet_sequence_id: 4
  timestamp: 22000
  track_event {
    track_uuid: 21
    categories: "cat"
    name: "event1_on_t4"
    type: 3
  }
}

# Another packet for a thread track in the old process, badly sorted.
packet {
  trusted_packet_sequence_id: 2
  timestamp: 6000
  track_event {
    track_uuid: 1
    categories: "cat"
    name: "event3_on_t1"
    type: 3
  }
}

# Override the track to the default descriptor track for an event with a
# TrackEvent type. Should appear on the default descriptor track instead of
# "t1".
packet {
  trusted_packet_sequence_id: 1
  timestamp: 30000
  track_event {
    track_uuid: 0
    categories: "cat"
    name: "event1_on_t1"
    type: 3
  }
}

# But a legacy event without TrackEvent type falls back to legacy tracks (based
# on ThreadDescriptor / async IDs / legacy instant scopes). This instant event
# should appear on the process track "p2".
packet {
  trusted_packet_sequence_id: 1
  timestamp: 31000
  track_event {
    track_uuid: 0
    categories: "cat"
    name: "event2_on_p2"
    legacy_event {
      phase: 73               # 'I'
      instant_event_scope: 2  # Process scope
    }
  }
}

# And pid/tid overrides take effect even for TrackEvent type events.
packet {
  trusted_packet_sequence_id: 1
  timestamp: 32000
  track_event {
    track_uuid: 0
    categories: "cat"
    name: "event2_on_t4"
    type: 3
    legacy_event {
      pid_override: 5
      tid_override: 4
    }
  }
}

# Track descriptor without name and process/thread association derives its
# name from the first event on the track.
packet {
  trusted_packet_sequence_id: 1
  timestamp: 40000
  track_descriptor {
    uuid: 13
    parent_uuid: 10
  }
}

packet {
  trusted_packet_sequence_id: 1
  timestamp: 40000
  track_event {
    track_uuid: 13
    categories: "cat"
    name: "event_and_track_async3"
    type: 3
  }
}