add DebugSpew helper

lotus-soup/compositions/composition-drand-halt.toml

@@ -79,6 +79,6 @@
     [groups.run.test_params]
       role = "drand"
       drand_period = "1s"
-      drand_halt_duration = "20s"
+      drand_halt_duration = "1m"
       drand_halt_begin = "10s"
-      drand_log_level = "info"
+      drand_log_level = "none"

lotus-soup/go.mod

@@ -3,6 +3,7 @@ module github.com/filecoin-project/oni/lotus-soup
 go 1.14
 
 require (
+	github.com/davecgh/go-spew v1.1.1
 	github.com/drand/drand v0.9.2-0.20200616080806-a94e9c1636a4
 	github.com/filecoin-project/go-address v0.0.2-0.20200504173055-8b6f2fb2b3ef
 	github.com/filecoin-project/go-fil-markets v0.3.0

lotus-soup/node.go

@@ -8,7 +8,8 @@ import (
 	"sort"
 	"strings"
 	"time"
-
+	
+	"github.com/davecgh/go-spew/spew"
 	"github.com/filecoin-project/lotus/api"
 	"github.com/filecoin-project/lotus/build"
 	"github.com/filecoin-project/lotus/chain/beacon"
@@ -69,6 +70,11 @@ func (t *TestEnvironment) DurationParam(name string) time.Duration {
 	return d
 }
 
+func (t *TestEnvironment) DebugSpew(format string, args... interface{}) {
+	t.RecordMessage(spew.Sprintf(format, args...))
+}
+
+
 type Node struct {
 	fullApi  api.FullNode
 	minerApi api.StorageMiner
@@ -206,7 +212,7 @@ func getDrandOpts(ctx context.Context, t *TestEnvironment) (node.Option, error)
 			return nil, err
 
 		}
-		t.RecordMessage("setting drand config: %v", cfg)
+		t.DebugSpew("setting drand config: %v", cfg)
 		return node.Options(
 			node.Override(new(dtypes.DrandConfig), cfg.Config),
 			node.Override(new(dtypes.DrandBootstrap), cfg.GossipBootstrap),

lotus-soup/role_drand.go

@@ -4,7 +4,6 @@ import (
 	"bytes"
 	"context"
 	"encoding/hex"
-	"encoding/json"
 	"fmt"
 	"io/ioutil"
 	"net"
@@ -140,7 +139,6 @@ func runDrandNode(t *TestEnvironment) error {
 	}
 	defer dr.Close()
 
-	// TODO add ability to halt / recover on demand
 	ctx := context.Background()
 	t.SyncClient.MustSignalAndWait(ctx, stateReady, t.TestInstanceCount)
 
@@ -327,8 +325,7 @@ func prepareDrandNode(t *TestEnvironment) (*DrandInstance, error) {
 			},
 			GossipBootstrap: relayAddrs,
 		}
-		dump, _ := json.Marshal(cfg)
-		t.RecordMessage("publishing drand config on sync topic: %s", string(dump))
+		t.DebugSpew("publishing drand config on sync topic: %v", cfg)
 		t.SyncClient.MustPublish(ctx, drandConfigTopic, &cfg)
 	}