stdin in
cue import yaml: -
cmp stdout stdout-cue

stdin in
cue export yaml: -
cmp stdout stdout-json

stdin in
cue eval yaml: -
cmp stdout stdout-cue

stdin in
cue def yaml: -
cmp stdout stdout-cue

-- in --
foo: bar
-- stdout-cue --
foo: "bar"
-- stdout-json --
{
    "foo": "bar"
}