Merge pull request #642 from kinvolk/dongsu/test-signal-ptmx

validation: add minor checks for ptmx and kill signal

Author: Zhou Hao

cmd/runtimetest/main.go

@@ -50,8 +50,12 @@ var (
 		"/dev/shm": "tmpfs",
 	}
 
+	// NOTE: check if /dev/ptmx is a symlink to /dev/pts/ptmx.
+	// os.Readlink() returns only a relative path "pts/ptmx" instead of
+	// an absolute path /dev/pts/ptmx.
 	defaultSymlinks = map[string]string{
 		"/dev/fd":     "/proc/self/fd",
+		"/dev/ptmx":   "pts/ptmx",
 		"/dev/stdin":  "/proc/self/fd/0",
 		"/dev/stdout": "/proc/self/fd/1",
 		"/dev/stderr": "/proc/self/fd/2",

validation/killsig.go

@@ -15,6 +15,8 @@ import (
 
 var signals = []string{
 	"TERM",
+	"USR1",
+	"USR2",
 }
 
 func main() {