When debugging tests, it's easy to put some IO.inspect statements in there to see what's going on. This works great, until objects grow too big.
What is the mix equivalent of iex's IEx.configure [inspect: [limit: 1000]] when running mix test?
IEx.configure [inspect: [limit: 1000]] only changes the options for the automatic inspect call made by iex for every expression entered, and does not change the behavior of the actual IO.inspect function. You'll have to create a wrapper around IO.inspect and use that instead of IO.inspect:
test "the truth" do
list = Enum.to_list(1..100)
IO.inspect list
i list
end
defp i(item, opts \\ []) do
IO.inspect(item, Keyword.put(opts, :limit, 1000))
end
Output:
$ mix test
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22,
23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42,
43, 44, 45, 46, 47, 48, 49, 50, ...]
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22,
23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42,
43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62,
63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82,
83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100]
.
Finished in 0.03 seconds
1 test, 0 failures
