From 9b4bd49e59be4fce5e102844d320789dca4c7ec5 Mon Sep 17 00:00:00 2001
From: Andrew Kroh <andrew.kroh@elastic.co>
Date: Wed, 3 Aug 2022 14:39:54 -0400
Subject: [PATCH] Log stderr on test failure

---
 cmd/gvm/use_test.go | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/cmd/gvm/use_test.go b/cmd/gvm/use_test.go
index 06136e6..a587af5 100644
--- a/cmd/gvm/use_test.go
+++ b/cmd/gvm/use_test.go
@@ -2,6 +2,7 @@ package main
 
 import (
 	"bytes"
+	"errors"
 	"fmt"
 	"io"
 	"os"
@@ -73,7 +74,12 @@ func TestGVMRunUse(t *testing.T) {
 			// Test that GOROOT/bin/go exists and is the correct version.
 			version, err := exec.Command(filepath.Join(goroot, "bin", "go"), "version").Output()
 			if err != nil {
-				t.Fatal("failed to run go version", err)
+				var exitErr *exec.ExitError
+				if errors.As(err, &exitErr) {
+					t.Fatalf("failed to run go version: %v\n%s", err, exitErr.Stderr)
+				} else {
+					t.Fatal("failed to run go version", err)
+				}
 			}
 			assert.Contains(t, string(version), tc.Version)
 		})