CODEWITHSUNDEEP
elixir
Chen Yu
Chen Yu

Reputation: 4077

In `iex` shell, is it possible to call `*Test.exs` function directly?

In import_test.exs file, there is function as follows:

# @tag :external
test "extract_csv, header_only/1" do
  file = Path.join([:code.priv_dir(:mirror), "test", "head_only.csv"])
  batch = %Imports.Batch{internal_csv_path: file, importer_id: 1}
  Imports.extract_csv(batch)
  products = Imports.list_products()
  IO.inspect(products, label: "before")
  assert products == []
end

how to call it directly in shell? If running mix test --only external, the db update result won't be viewed because the test environment's automatically rollback operation after every unit test.

Now I copy the every line of test into iex shell. Is it necessary?

when compile imports_test.exs, it gives the following message.

c("test/mirror/imports_test.exs") 
** (CompileError) test/mirror/imports_test.exs:2: module Mirror.DataCase is not loaded and could not be found
    (elixir 1.13.4) expanding macro: Kernel.use/1
    test/mirror/imports_test.exs:2: Mirror.ImportsTest (module)

test module header is as follows:

defmodule Mirror.ImportsTest do
  use Mirror.DataCase

  alias Mirror.Imports

Upvotes: 2

Views: 337

Answers (1)

Aleksei Matiushkin
Aleksei Matiushkin

Reputation: 120990

Assuming this function is located in test/my_test.ex file, in the module named MyTest, you might do the following.

iex|💧|1 ▸ c "test/my_test.exs"
[SiblingsTest]
iex|💧|2 ▸ MyTest.__info__(:functions)
[
  __ex_unit__: 0,
  __ex_unit__: 2,
  "test extract_csv, header_only/1": 1,
  ...
]

That means, you might apply it as

apply(MyTest, :"test extract_csv, header_only/1", [%{}])

The last argument would be context. Please note, that neither setup/1 nor any other callback would not have been called.

Upvotes: 3

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