Merge pull request #759 from weaveworks/show-test-output

Show output in test to aid debugging

e2e/util/command.go

@@ -2,6 +2,7 @@ package util
 
 import (
 	"fmt"
+	"os"
 	"os/exec"
 	"testing"
 
@@ -67,6 +68,13 @@ func (c *Command) Dir(path string) *Command {
 	return c
 }
 
+// PassThrough makes output from the command go to the same place as this process.
+func (c *Command) PassThrough() *Command {
+	c.Cmd.Stderr = os.Stderr
+	c.Cmd.Stdout = os.Stdout
+	return c
+}
+
 // Run executes the command and performs an error check. It results in fatal
 // exit of the test if an error is encountered. In order to continue the test
 // on encountering an error, call Command.Cmd.CombinedOutput() or the

e2e/zconcurrent_vm_test.go

@@ -24,6 +24,7 @@ func TestConcurrentVMCreation(t *testing.T) {
 		cmds = append(
 			cmds,
 			util.NewCommand(t, igniteBin).
+				PassThrough().
 				With("run").
 				With("--name="+name).
 				With("--ssh").