_test

$ crystal tool expand ./actual.cr -c actual.cr:3:1
1 expansion found
expansion 1:
   times(5)

# expand macro 'times' (/tmp/lib.cr:1:1)
~> "hi"
   "hi"
   "hi"
   "hi"
   "hi"

$ crystal tool expand ./expected.cr -c expected.cr:9:1
1 expansion found
expansion 1:
   times

# expand macro 'times' (/tmp/expected.cr:1:1)
~> "hi"
   "hi"
   "hi"
   "hi"
   "hi"

actual.cr

require "./lib"

times(5)

expected.cr

macro times
  "hi"
  "hi"
  "hi"
  "hi"
  "hi"
end

times

lib.cr

macro times(n)
  {% for i in 1..n %}
    "hi"
  {% end %}
end