diff --git a/tests/test-ssh-proto-unbundle.t b/tests/test-ssh-proto-unbundle.t
--- a/tests/test-ssh-proto-unbundle.t
+++ b/tests/test-ssh-proto-unbundle.t
@@ -50,9 +50,9 @@
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     444\n
-  o> readline() -> 444:
-  o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
+  o>     \d+\\n (re)
+  o> readline\(\) -> \d+: (re)
+  o>     capabilities: batch branchmap \$USUAL_BUNDLE2_CAPS\$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=[^ ,]+(,[^ ,]+)* unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\\n (re)
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
@@ -179,9 +179,9 @@
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     444\n
-  o> readline() -> 444:
-  o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
+  o>     \d+\\n (re)
+  o> readline\(\) -> \d+: (re)
+  o>     capabilities: batch branchmap \$USUAL_BUNDLE2_CAPS\$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=[^ ,]+(,[^ ,]+)* unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\\n (re)
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
@@ -247,10 +247,10 @@
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
-  o> readline() -> 4:
-  o>     444\n
-  o> readline() -> 444:
-  o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
+  o> readline\(\) -> \d+: (re)
+  o>     \d+\\n (re)
+  o> readline\(\) -> \d+: (re)
+  o>     capabilities: batch branchmap \$USUAL_BUNDLE2_CAPS\$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=[^ ,]+(,[^ ,]+)* unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\\n (re)
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
@@ -318,9 +318,9 @@
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     444\n
-  o> readline() -> 444:
-  o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
+  o>     \d+\\n (re)
+  o> readline\(\) -> \d+: (re)
+  o>     capabilities: batch branchmap \$USUAL_BUNDLE2_CAPS\$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=[^ ,]+(,[^ ,]+)* unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\\n (re)
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
@@ -387,9 +387,9 @@
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     444\n
-  o> readline() -> 444:
-  o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
+  o>     \d+\\n (re)
+  o> readline\(\) -> \d+: (re)
+  o>     capabilities: batch branchmap \$USUAL_BUNDLE2_CAPS\$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=[^ ,]+(,[^ ,]+)* unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\\n (re)
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
@@ -457,9 +457,9 @@
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     444\n
-  o> readline() -> 444:
-  o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
+  o>     \d+\\n (re)
+  o> readline\(\) -> \d+: (re)
+  o>     capabilities: batch branchmap \$USUAL_BUNDLE2_CAPS\$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=[^ ,]+(,[^ ,]+)* unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\\n (re)
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
@@ -530,9 +530,9 @@
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     444\n
-  o> readline() -> 444:
-  o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
+  o>     \d+\\n (re)
+  o> readline\(\) -> \d+: (re)
+  o>     capabilities: batch branchmap \$USUAL_BUNDLE2_CAPS\$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=[^ ,]+(,[^ ,]+)* unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\\n (re)
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
@@ -599,9 +599,9 @@
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     444\n
-  o> readline() -> 444:
-  o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
+  o>     \d+\\n (re)
+  o> readline\(\) -> \d+: (re)
+  o>     capabilities: batch branchmap \$USUAL_BUNDLE2_CAPS\$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=[^ ,]+(,[^ ,]+)* unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\\n (re)
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
@@ -671,9 +671,9 @@
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     444\n
-  o> readline() -> 444:
-  o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
+  o>     \d+\\n (re)
+  o> readline\(\) -> \d+: (re)
+  o>     capabilities: batch branchmap \$USUAL_BUNDLE2_CAPS\$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=[^ ,]+(,[^ ,]+)* unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\\n (re)
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
@@ -749,9 +749,9 @@
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     444\n
-  o> readline() -> 444:
-  o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
+  o>     \d+\\n (re)
+  o> readline\(\) -> \d+: (re)
+  o>     capabilities: batch branchmap \$USUAL_BUNDLE2_CAPS\$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=[^ ,]+(,[^ ,]+)* unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\\n (re)
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
@@ -819,9 +819,9 @@
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     444\n
-  o> readline() -> 444:
-  o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
+  o>     \d+\\n (re)
+  o> readline\(\) -> \d+: (re)
+  o>     capabilities: batch branchmap \$USUAL_BUNDLE2_CAPS\$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=[^ ,]+(,[^ ,]+)* unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\\n (re)
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
@@ -891,9 +891,9 @@
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     444\n
-  o> readline() -> 444:
-  o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
+  o>     \d+\\n (re)
+  o> readline\(\) -> \d+: (re)
+  o>     capabilities: batch branchmap \$USUAL_BUNDLE2_CAPS\$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=[^ ,]+(,[^ ,]+)* unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\\n (re)
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
@@ -971,9 +971,9 @@
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     444\n
-  o> readline() -> 444:
-  o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
+  o>     \d+\\n (re)
+  o> readline\(\) -> \d+: (re)
+  o>     capabilities: batch branchmap \$USUAL_BUNDLE2_CAPS\$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=[^ ,]+(,[^ ,]+)* unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\\n (re)
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
@@ -1046,9 +1046,9 @@
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     444\n
-  o> readline() -> 444:
-  o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
+  o>     \d+\\n (re)
+  o> readline\(\) -> \d+: (re)
+  o>     capabilities: batch branchmap \$USUAL_BUNDLE2_CAPS\$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=[^ ,]+(,[^ ,]+)* unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\\n (re)
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1:
@@ -1123,9 +1123,9 @@
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     444\n
-  o> readline() -> 444:
-  o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
+  o>     \d+\\n (re)
+  o> readline\(\) -> \d+: (re)
+  o>     capabilities: batch branchmap \$USUAL_BUNDLE2_CAPS\$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=[^ ,]+(,[^ ,]+)* unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\\n (re)
   o> readline() -> 2:
   o>     1\n
   o> readline() -> 1: