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Testing

Automated Tests

just test-unit          # unit tests — no infrastructure needed
just test               # unit + integration (starts Docker if needed)

just test runs unit tests plus integration tests against Postgres and Redis (started automatically if not already running). Neither task runs the E2E suites in buzz-test-client — those are marked #[ignore] and require a running relay:

# Start a relay first (see below), then:
cargo test -p buzz-test-client -- --ignored

Live Local Relay

The fastest way to exercise the relay end-to-end is to build the release binaries once, run buzz-relay, and drive it with the buzz CLI. The CLI signs every request with NIP-98, so you don't need nak or hand-rolled curl.

1. Setup

. ./bin/activate-hermit          # activate pinned toolchain
cp .env.example .env             # one-time
just setup                       # start Docker services, run migrations

Already running Buzz Desktop? Desktop uses the same Docker container names (buzz-postgres, buzz-redis) and the same default ports (:5432, :6379). just setup will reuse those services, so your test relay writes into Desktop's database. That's fine for read/write smoke tests, but: just reset wipes Desktop's data along with yours. If you need isolation, stop Desktop first or run the dev stack on a different Compose project (COMPOSE_PROJECT_NAME=buzz-dev docker compose …).

just reset wipes all local data and starts over — including Buzz Desktop's data if its services are sharing your dev stack (see callout above).

Heads up — scrub stale env first. If your shell inherits any of BUZZ_AUTH_TAG, BUZZ_RELAY_URL, or BUZZ_PRIVATE_KEY from a prior session (or a staging config), unset them before continuing. A stale BUZZ_AUTH_TAG fails the local dev relay with auth_error: signature verification failed on the first CLI write — it is not tolerated.

unset BUZZ_AUTH_TAG BUZZ_RELAY_URL BUZZ_PRIVATE_KEY

2. Build the binaries

cargo build --release -p buzz-relay -p buzz-cli -p buzz-admin
export PATH="$PWD/target/release:$PATH"

Rebuild after any code change — the steps below use the release binaries.

3. Start the relay

In a separate terminal (it runs in the foreground):

buzz-relay                     # release binary from step 2, serves ws://localhost:3000
# alternatives:
# cargo run --release -p buzz-relay     # rebuild + run in release
# just relay                            # DEBUG build — fast to launch on a hot cache,
#                                       # but mismatched if step 2 left you on release.
#                                       # Use `just relay-release` if you want the recipe.

Verify it's up (back in your working terminal):

curl -s http://localhost:3000/health           # → ok
curl -s http://localhost:8080/_readiness        # → {"status":"ready"}

Health/readiness/liveness live on a separate port (default 8080, BUZZ_HEALTH_PORT) so K8s probes bypass auth middleware. The main app port also exposes /health for convenience.

The relay starts in dev mode (BUZZ_REQUIRE_AUTH_TOKEN=false). The startup log emits a WARN about this — that's expected for local testing. See the env vars table at the bottom if you need to lock it down.

Already running Buzz Desktop (or another relay) on :3000 / :8080 / :9102? Buzz binds three ports — main, health, metrics — and any of them can collide. Use a separate terminal per role and export the right vars in each:

In the relay terminal (before launching buzz-relay):

export BUZZ_BIND_ADDR=0.0.0.0:3030
export BUZZ_HEALTH_PORT=8088
export BUZZ_METRICS_PORT=9202
export RELAY_URL=ws://localhost:3030     # advertised in NIP-42 challenges
buzz-relay

In your working / CLI terminal (for steps 4+ and the ACP harness):

export BUZZ_RELAY_URL=http://localhost:3030    # CLI target
# verify the relay on the overridden ports:
curl -s http://localhost:3030/health             # → ok
curl -s http://localhost:8088/_readiness         # → {"status":"ready"}

Every snippet later in this doc shows the defaults. When you see localhost:3000 / :8080 in a code block, mentally substitute your overrides — or the CLI will end up talking to Buzz Desktop's relay.

Ignore just setup's "Next steps" banner. It still prints just relay (a debug build). Use buzz-relay from step 2 here — step 2 already built the release binary.

When you're done, stop the relay (Ctrl-C in its terminal). If it's backgrounded or you lost the terminal: pkill -f buzz-relay. Leaving it running will collide with the next reviewer who follows this doc on the same machine.

4. Smoke test the CLI against the relay

End-to-end: generate an identity, create a channel, post a message, read it back. This is the minimum sequence an agent needs to verify a local relay.

# Generate a keypair
GEN=$(buzz-admin generate-key)
export BUZZ_PRIVATE_KEY=$(echo "$GEN" | awk '/Secret key:/ {print $3}')
PUBKEY=$(echo "$GEN"           | awk '/Public key:/ {print $3}')
echo "pubkey: $PUBKEY"

# Create a channel — the UUID is returned in the response
CHANNEL=$(buzz channels create --name "smoke-$$" --type stream --visibility open | jq -r '.channel_id')
echo "channel: $CHANNEL"

# Send a message and read it back
SEND=$(buzz messages send --channel "$CHANNEL" --content "hello from smoke test")
EVENT_ID=$(echo "$SEND" | jq -r '.event_id')
buzz messages get --channel "$CHANNEL" --limit 5 | jq .

# Fetch the reply chain for a specific message (empty array on a leaf — that's fine)
buzz messages thread --channel "$CHANNEL" --event "$EVENT_ID" | jq .

A successful run prints {"event_id":"…","accepted":true,"message":""} for the send, and the message body in the get output. thread returns [] for a leaf message — populated only after a reply comes in (see §5).

5. Going deeper

For full coverage of every CLI command (54 subcommands across 12 groups), follow crates/buzz-cli/TESTING.md.

The relay's HTTP bridge accepts three endpoints — useful if you're testing a client other than buzz-cli:

Endpoint Purpose
POST /events Submit a signed Nostr event
POST /query NIP-01 filter query (returns events)
POST /count NIP-45 count query

All three accept NIP-98 auth (recommended) or, in dev mode, an X-Pubkey header fallback. There is no REST API for fetching message threads — use POST /query with an #e filter, or buzz messages thread.

ACP Harness (optional, end-to-end with a real agent)

buzz-acp connects an ACP-speaking agent (goose, codex, claude code, buzz-agent) to the relay. The harness listens for events, drives the agent over stdio, and the agent replies through MCP tools.

Minimum recipe — assumes the relay from step 3 is running and the channel $CHANNEL from step 4 still exists. The agent identity must be different from the sender identity (BUZZ_ACP_RESPOND_TO=anyone still skips events the agent signed itself).

cargo build --release -p buzz-acp
export PATH="$PWD/target/release:$PATH"

# 1. Save your sender identity from step 4 — you'll need it to @mention the agent
SENDER_SK="$BUZZ_PRIVATE_KEY"

# 2. Mint a fresh agent identity and capture its pubkey
AGENT_GEN=$(buzz-admin generate-key)
AGENT_SK=$(echo "$AGENT_GEN" | awk '/Secret key:/ {print $3}')
AGENT_PUBKEY=$(echo "$AGENT_GEN" | awk '/Public key:/ {print $3}')

# 3. Add the agent as a member of $CHANNEL — still using the sender identity.
#    Skip this and the agent boots to "discovered 0 channel(s) → agent will
#    sit idle" and silently ignores every mention.
buzz channels add-member --channel "$CHANNEL" --pubkey "$AGENT_PUBKEY" --role member

# 4. Switch to the agent identity and start it.
#    buzz-acp wants ws:// (not http://). If you set BUZZ_RELAY_URL to an
#    http:// URL in step 3, set the ws:// equivalent here — same host/port.
export BUZZ_PRIVATE_KEY="$AGENT_SK"
export BUZZ_RELAY_URL=ws://localhost:3000   # match step 3 (e.g. ws://localhost:3030 if overridden)
export BUZZ_ACP_RESPOND_TO=anyone           # default is owner-only; opens the gate for testing
# NIP-AE core-memory prompt injection is on by default; set BUZZ_ACP_NO_MEMORY=true to opt out.
export GOOSE_MODE=auto                        # must be 'auto' or goose hangs on prompts

buzz-acp                                    # foreground; logs to stdout (run in a separate terminal)

# Optional: turn on per-turn tracing if the default log is too quiet.
# RUST_LOG=buzz_acp=debug buzz-acp

Using a different ACP agent? The default recipe assumes goose is on $PATH and configured (goose --version should print). For codex / claude code / buzz-agent, set BUZZ_ACP_AGENT_COMMAND and BUZZ_ACP_AGENT_ARGS accordingly — see crates/buzz-acp/README.md. Without these, buzz-acp will fail to spawn the agent subprocess on startup.

If you started the agent before adding it to the channel, just run the add-member afterwards — it picks up the membership notification live and subscribes without restart (membership notification: subscribing to new channel …).

The justfile also ships just goose key="$AGENT_NSEC" (foreground) and just goose-bg key="$AGENT_NSEC" (background screen session) which set the same env. See crates/buzz-acp/README.md for parallel agents, heartbeats, respond-to gates, and forum subscriptions.

Send the agent a task — switch your shell back to the sender identity from step 4 and @mention the agent:

export BUZZ_PRIVATE_KEY=$SENDER_SK          # the key from step 4
buzz messages send --channel "$CHANNEL" \
  --content "Hey agent, reply PONG only."

# Wait 10–90s, then read the channel — the agent's reply is a kind:9 from
# AGENT_PUBKEY. The current ACP build is quiet on stdout during a turn, so
# `buzz messages get` is how you confirm it ran.
buzz messages get --channel "$CHANNEL" --limit 5 | jq '.[] | {pubkey, content}'

Replies are kind:9 in the same channel; buzz messages thread --channel <id> --event <event_id> fetches the reply chain for a specific mention.

Configuration reference

The relay reads all configuration from environment variables. Defaults work out of the box with just setup or just relay. Common overrides:

Variable Default Notes
BUZZ_BIND_ADDR 0.0.0.0:3000 Main app port
BUZZ_HEALTH_PORT 8080 /_liveness, /_readiness
BUZZ_METRICS_PORT 9102 Prometheus /metrics
RELAY_URL ws://localhost:3000 Advertised in NIP-11 / NIP-42 challenges. Note: no BUZZ_ prefix.
DATABASE_URL postgres://buzz:buzz_dev@localhost:5432/buzz
REDIS_URL redis://localhost:6379
BUZZ_REQUIRE_AUTH_TOKEN false When true, REST requires NIP-98 (no X-Pubkey fallback)
BUZZ_REQUIRE_RELAY_MEMBERSHIP false When true, only pubkeys in relay_members can connect
BUZZ_AUTO_MIGRATE false Opt in with true/1/yes/on to run embedded SQLx migrations on relay startup
RELAY_OWNER_PUBKEY unset Bootstrapped as owner in relay_members at first start
BUZZ_ALLOW_NIP_OA_AUTH false Enable NIP-OA owner attestation for membership

CLI-side, only two matter for testing:

Variable Default Notes
BUZZ_RELAY_URL http://localhost:3000 CLI relay base; accepts ws(s):// and normalises
BUZZ_PRIVATE_KEY — (required) nsec1… or 64-char hex
BUZZ_AUTH_TAG unset Optional NIP-OA owner attestation JSON

Troubleshooting

Symptom Cause Fix
relay error 500 or 400: restricted: not a channel member after a code change Stale binary Rebuild and re-export PATH; or cargo run directly
Address already in use on relay start (os error 48 on macOS, 98 on Linux) Another relay (or stale process) holding :3000 / :8080 / :9102 (or your override ports) The panic line names the failing port — read it first. Then lsof -iTCP:3000,8080,9102 -sTCP:LISTEN (or your override equivalents). Kill the offender (pkill -f buzz-relay) or use the port-override block in step 3. If you already overrode and still collide, a prior reviewer left a relay running on the same alt ports — kill it or pick fresh ports
auth_error: BUZZ_PRIVATE_KEY is required Env not exported into the CLI's shell export BUZZ_PRIVATE_KEY=... (or pass --private-key)
auth_error: BUZZ_AUTH_TAG verification failed … signature verification failed A stale BUZZ_AUTH_TAG inherited from a parent shell. The local dev relay rejects it. unset BUZZ_AUTH_TAG (see the scrub block in step 1)
auth-required: verification failed on a closed relay NIP-OA attestation needed Set BUZZ_AUTH_TAG to the owner-issued JSON, or relax BUZZ_REQUIRE_RELAY_MEMBERSHIP
channels list empty after channels create The CLI doesn't echo the channel UUID; use the filter shown in step 4 Or POST /query with {"kinds":[39002]}
ACP agent ignores all events BUZZ_ACP_RESPOND_TO=owner-only (default) with no owner configured Set BUZZ_ACP_RESPOND_TO=anyone for testing
ACP logs discovered 0 channel(s) / no channel subscriptions resolved Agent identity isn't a member of any channel buzz channels add-member --channel "$CHANNEL" --pubkey "$AGENT_PUBKEY" --role member from another identity
GOOSE_MODE warning, agent hangs Not set export GOOSE_MODE=auto
Tests pass locally but CI fails Forgot to run just ci just ci runs the gate (fmt, clippy, unit tests, desktop/web builds)