diff --git a/tests/antithesis/avalanchego/gencomposeconfig/main.go b/tests/antithesis/avalanchego/gencomposeconfig/main.go
index 1681ad78e421..dcdd6e8c63c2 100644
--- a/tests/antithesis/avalanchego/gencomposeconfig/main.go
+++ b/tests/antithesis/avalanchego/gencomposeconfig/main.go
@@ -4,6 +4,8 @@
 package main
 
 import (
+	"os"
+
 	"go.uber.org/zap"
 
 	"github.com/ava-labs/avalanchego/tests"
@@ -20,5 +22,6 @@ func main() {
 		tests.NewDefaultLogger("").Fatal("failed to generate compose config",
 			zap.Error(err),
 		)
+		os.Exit(1)
 	}
 }
diff --git a/tests/antithesis/xsvm/gencomposeconfig/main.go b/tests/antithesis/xsvm/gencomposeconfig/main.go
index 8bed3a982133..b292cf89cefb 100644
--- a/tests/antithesis/xsvm/gencomposeconfig/main.go
+++ b/tests/antithesis/xsvm/gencomposeconfig/main.go
@@ -4,6 +4,8 @@
 package main
 
 import (
+	"os"
+
 	"go.uber.org/zap"
 
 	"github.com/ava-labs/avalanchego/genesis"
@@ -25,5 +27,6 @@ func main() {
 		tests.NewDefaultLogger("").Fatal("failed to generate compose config",
 			zap.Error(err),
 		)
+		os.Exit(1)
 	}
 }
diff --git a/tests/e2e/etna/suites.go b/tests/e2e/etna/suites.go
index 703249e0abdd..fb033726d6ce 100644
--- a/tests/e2e/etna/suites.go
+++ b/tests/e2e/etna/suites.go
@@ -29,13 +29,10 @@ var _ = ginkgo.Describe("[Etna]", func() {
 			require.NoError(err)
 
 			now := time.Now()
-			msg := "etna is activated"
-			if !upgrades.IsEtnaActivated(now) {
-				msg = "etna is not activated"
-			}
-			tc.Log().Info(msg,
+			tc.Log().Info("detected if Etna is activated",
 				zap.Time("now", now),
 				zap.Time("etnaTime", upgrades.EtnaTime),
+				zap.Bool("isEtnaActivated", upgrades.IsEtnaActivated(now)),
 			)
 		})
 })
diff --git a/tests/fixture/tmpnet/cmd/main.go b/tests/fixture/tmpnet/cmd/main.go
index 96859fba4d8f..f8eff5782c51 100644
--- a/tests/fixture/tmpnet/cmd/main.go
+++ b/tests/fixture/tmpnet/cmd/main.go
@@ -17,6 +17,7 @@ import (
 
 	"github.com/ava-labs/avalanchego/tests"
 	"github.com/ava-labs/avalanchego/tests/fixture/tmpnet"
+	"github.com/ava-labs/avalanchego/utils/logging"
 	"github.com/ava-labs/avalanchego/version"
 )
 
@@ -37,7 +38,7 @@ func main() {
 		Short: "tmpnetctl commands",
 	}
 	rootCmd.PersistentFlags().StringVar(&networkDir, "network-dir", os.Getenv(tmpnet.NetworkDirEnvName), "The path to the configuration directory of a temporary network")
-	rootCmd.PersistentFlags().StringVar(&rawLogFormat, "log-format", "auto", "The structure of log format. Defaults to 'auto' which formats terminal-like logs, when the output is a terminal. Otherwise, should be one of {auto, plain, colors, json}")
+	rootCmd.PersistentFlags().StringVar(&rawLogFormat, "log-format", logging.AutoString, logging.FormatDescription)
 
 	versionCmd := &cobra.Command{
 		Use:   "version",
diff --git a/tests/log.go b/tests/log.go
index 8e6271b8c014..c3aea0d30bfc 100644
--- a/tests/log.go
+++ b/tests/log.go
@@ -37,7 +37,7 @@ func NewSimpleLogger(writeCloser io.WriteCloser) logging.Logger {
 }
 
 func NewDefaultLogger(prefix string) logging.Logger {
-	log, err := LoggerForFormat(prefix, "auto")
+	log, err := LoggerForFormat(prefix, logging.AutoString)
 	if err != nil {
 		// This should never happen since auto is a valid log format
 		panic(err)