session: sends req on start

request.go

@@ -6,7 +6,6 @@ import (
 	"encoding/base32"
 	"fmt"
 	"git.wisehodl.dev/jay/go-mana-component"
-	"git.wisehodl.dev/jay/go-roots-ws"
 	"log/slog"
 	"sync"
 	"time"
@@ -216,18 +215,29 @@ func newSession(
 		cancel:      cancel,
 	}
 	// create logger if handler is supplied
-	// run main loop
 	return s
 }
 
 func (s *session) run() {
-	var tr terminateReason
-	defer s.terminate(tr)
+	// send initial REQ; goroutine allows done/ctx cancellation to abort the wait
+	sent := make(chan error, 1)
+	go func() { sent <- s.send(s.req) }()
 
-	// send inital req
+	select {
+	case err := <-sent:
+		if err != nil {
+			s.terminate(termSendFailed)
+			return
+		}
+	case <-s.done:
+		s.terminate(termExternal)
+		return
+	case <-s.ctx.Done():
+		s.terminate(termExternal)
+		return
+	}
 
-	// run main loop
-	// switch on done, context, eose, and closed -- terminal paths
+	// TODO: main message loop (eose, closed, done, ctx) -- deferred to later tests
 }
 
 func (s *session) Close() {

request_test.go

@@ -1,6 +1,10 @@
 package prism
 
 import (
+	"context"
+	"git.wisehodl.dev/jay/go-mana-component"
+	"git.wisehodl.dev/jay/go-roots-ws"
+	"github.com/stretchr/testify/assert"
 	"testing"
 )
 
@@ -9,9 +13,36 @@ import (
 // These tests do not go through RequestManager.
 func TestRequestManager_Session(t *testing.T) {
 	t.Run("sends req on start", func(t *testing.T) {
-		// construct a session with a mock send func
-		// run the session
-		// assert the mock send was called with the exact req bytes
+		filters := [][]byte{[]byte(`{}`)}
+		id := "TESTREQ"
+		req := envelope.EncloseReq(id, filters)
+
+		sent := make(chan []byte, 1)
+		send := func(data []byte) error {
+			sent <- data
+			return nil
+		}
+
+		eose := make(chan struct{})
+		closed := make(chan struct{})
+		done := make(chan struct{})
+		terminate := func(terminateReason) {}
+
+		ctx := component.MustNew(context.Background(), "prism", "test")
+		s := newSession(ctx, id, req, eose, closed, done, send, terminate, false, nil)
+		go s.run()
+
+		var got []byte
+		Eventually(t, func() bool {
+			select {
+			case got = <-sent:
+				return true
+			default:
+				return false
+			}
+		}, "expected send")
+
+		assert.Equal(t, []byte(req), got)
 	})
 
 	t.Run("terminates on failed req send", func(t *testing.T) {