hst: conditionally skip root remount

This enables the writable root overlay use case.

Signed-off-by: Ophestra <cat@gensokyo.uk>

1 files changed, 13 insertions, 0 deletions

diff --git a/hst/fsoverlay_test.go b/hst/fsoverlay_test.go
index f1097481..1b14e7c9 100644
--- a/hst/fsoverlay_test.go
+++ b/hst/fsoverlay_test.go
@@ -49,5 +49,18 @@ func TestFSOverlay(t *testing.T) {
 			Lower:  ms("/tmp/.src0", "/tmp/.src1"),
 		}}, m("/mnt/src"), ms("/tmp/.src0", "/tmp/.src1"),
 			"*/mnt/src:/tmp/.src0:/tmp/.src1"},
+
+		{"no remount root", &hst.FSOverlay{
+			Target: m("/"),
+			Lower:  ms("/tmp/.src0", "/tmp/.src1"),
+			Upper:  m("/tmp/upper"),
+			Work:   m("/tmp/work"),
+		}, true, container.Ops{&container.MountOverlayOp{
+			Target: m("/"),
+			Lower:  ms("/tmp/.src0", "/tmp/.src1"),
+			Upper:  m("/tmp/upper"),
+			Work:   m("/tmp/work"),
+		}}, m("/"), ms("/tmp/upper", "/tmp/work", "/tmp/.src0", "/tmp/.src1"),
+			"w*/:/tmp/upper:/tmp/work:/tmp/.src0:/tmp/.src1"},
 	})
 }