progress ... 
  - Foo 1
  - Foo 2
  - Foo 3
progress ... ok
all 1 tests successful
---
  % cat .stderr
  [btest] -- Foo 1
  [btest] -- Foo 1
  [btest] -- Foo 3
  [btest] -- Foo 3

all 1 tests successful
---
progress ...
  > bash %INPUT >&2
  - Foo 1
  - Foo 2
  - Foo 3
... progress ok
all 1 tests successful
---
---
