Add fabric session websocket client smoke API

agents/rap-node-agent/internal/mesh/client_test.go

@@ -0,0 +1,73 @@
+package mesh
+
+import (
+	"context"
+	"net/http/httptest"
+	"testing"
+	"time"
+
+	"github.com/example/remote-access-platform/agents/rap-node-agent/internal/fabricproto"
+)
+
+func TestClientFabricSessionFrameRoundTrip(t *testing.T) {
+	server := httptest.NewServer(Server{
+		Local:                PeerIdentity{ClusterID: "cluster-1", NodeID: "node-a"},
+		FabricSessionEnabled: true,
+	}.Handler())
+	defer server.Close()
+
+	client := NewClient(server.URL)
+	ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
+	defer cancel()
+	response, err := client.SendFabricSessionFrame(ctx, FabricSessionDialOptions{
+		Token:   "rap_fsn_clienttest",
+		Timeout: time.Second,
+	}, fabricproto.Frame{
+		Type:     fabricproto.FramePing,
+		Sequence: 12,
+		Payload:  []byte("probe"),
+	})
+	if err != nil {
+		t.Fatalf("send fabric session frame: %v", err)
+	}
+	if response.Type != fabricproto.FramePong || response.Sequence != 12 || string(response.Payload) != "probe" {
+		t.Fatalf("response = %+v, want pong seq 12", response)
+	}
+}
+
+func TestClientFabricSessionReportsRejectedStatus(t *testing.T) {
+	server := httptest.NewServer(Server{
+		Local:                PeerIdentity{ClusterID: "cluster-1", NodeID: "node-a"},
+		FabricSessionEnabled: true,
+	}.Handler())
+	defer server.Close()
+
+	client := NewClient(server.URL)
+	ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
+	defer cancel()
+	_, err := client.SendFabricSessionFrame(ctx, FabricSessionDialOptions{}, fabricproto.Frame{Type: fabricproto.FramePing})
+	if err == nil {
+		t.Fatal("send fabric session without token unexpectedly succeeded")
+	}
+}
+
+func TestClientFabricSessionWebSocketURL(t *testing.T) {
+	cases := []struct {
+		base string
+		want string
+	}{
+		{base: "http://node.example", want: "ws://node.example/mesh/v1/fabric/session/ws"},
+		{base: "https://node.example/base/", want: "wss://node.example/base/mesh/v1/fabric/session/ws"},
+		{base: "ws://node.example", want: "ws://node.example/mesh/v1/fabric/session/ws"},
+	}
+	for _, tc := range cases {
+		client := NewClient(tc.base)
+		got, err := client.fabricSessionWebSocketURL()
+		if err != nil {
+			t.Fatalf("fabricSessionWebSocketURL(%q): %v", tc.base, err)
+		}
+		if got != tc.want {
+			t.Fatalf("fabricSessionWebSocketURL(%q) = %q, want %q", tc.base, got, tc.want)
+		}
+	}
+}