feat(tests): more test helpers and features

[solnic]

New options in Sentry.Test.setup_sentry/1

• :telemetry_processor — keyword list forwarded to the per-test Sentry.TelemetryProcessor (e.g. buffer_configs, buffer_capacities, scheduler_weights, transport_capacity). Replaces the manual stop_supervised! + start_supervised! dance for tests that need a custom processor configuration.

• :collect_envelopes — when set, wires up a Bypass envelope collector automatically and returns its reference under :ref:

  • true — collector with no filtering;
  • keyword list (e.g. [type: "check_in"]) — forwarded to setup_bypass_envelope_collector/2 to filter by envelope item type.

  Collapses the common setup_bypass(...) + setup_bypass_envelope_collector(bypass) two-step into a single call:

  setup do
    Sentry.Test.setup_sentry(collect_envelopes: true, traces_sample_rate: 1.0)
  end
  
  test "...", %{ref: ref} do
    # ...
  end

New test helpers in Sentry.Test.Assertions

• assert_sentry_transaction(ref, criteria) — collects exactly 1 transaction envelope via ref and asserts it matches criteria. Returns the matched transaction. Reserved option: :timeout (default 1000ms).

• find_sentry_transaction!(ref, criteria) — collects up to :count transaction envelopes via ref and returns the first one matching criteria. Raises if none match. Reserved options: :count (default 1), :timeout (default 1000ms).

• refute_sentry_check_in(ref, timeout) — flushes the TelemetryProcessor pipeline, then asserts no check-in envelope arrives at the Bypass collector within timeout (default 100ms). Pair with Sentry.Test.setup_sentry(collect_envelopes: [type: "check_in"]).

Together they replace verbose usage like:

assert_sentry_report(collect_sentry_transactions(ref, 1), transaction: "...")
find_sentry_report!(collect_sentry_transactions(ref, 10, timeout: 2000), ...)