如何使 Elixir 混合测试输出更详细？

Question

在我的 Elixir/Phoenix 应用程序中，当我运行

mix test

我得到如下输出：

$ mix test
....

Finished in 0.09 seconds
4 tests, 0 failures

每个成功的测试都有点。

如何输出成功测试的名称？

在 Rails 和 rspec 中，我曾经使用目录中的 .rspec 文件执行此操作，如下所示：

$ cat .rspec
--color
-fd
--tty

Elixir 中有等效项吗？

Answer 1

--trace 是您正在寻找的选项：https://hexdocs.pm/mix/Mix.Tasks.Test.html

希望对您有所帮助！

Answer 2

要打印通过测试的名称，您可以将 --trace 参数传递给 mix test。例如，这里是 mix test --trace 在 httpoison 包的当前主分支上的输出：

$ mix test --trace

HTTPoisonTest
Starting HTTParrot on port 8080
Starting HTTParrot on port 8433 (SSL)
Starting HTTParrot on unix socket httparrot.sock
  * test post binary body (97.1ms)
  * test https scheme (57.8ms)
  * test option follow redirect relative url (4.0ms)
  * test option follow redirect absolute url (2.6ms)
  * test put (0.6ms)
  * test request headers as a map (0.5ms)
  * test get (1.5ms)
  * test head (0.5ms)
  * test delete (1.5ms)
  * test asynchronous redirected get request (2.3ms)
  * test send cookies (4.9ms)
  * test post charlist body (0.7ms)
  * test patch (0.5ms)
  * test post form data (0.6ms)
  * test exception (6.0ms)
  * test get with params (2.8ms)
  * test asynchronous request (0.5ms)
  * test explicit http scheme (0.5ms)
  * test put without body (0.8ms)
  * test multipart upload (8.5ms)
  * test options (0.5ms)
  * test basic_auth hackney option (1.6ms)
  * test http+unix scheme (4.4ms)
  * test asynchronous request with explicit streaming using [async: :once] (304.1ms)
  * test cached request (2.1ms)
  * test post streaming body (3.8ms)
  * test char list URL (0.7ms)

HTTPoisonBaseTest
  * test request body using ExampleDefp (124.1ms)
  * test passing ssl option (110.9ms)
  * test passing connect_timeout option (109.9ms)
  * test passing recv_timeout option (103.4ms)
  * test passing proxy option (106.6ms)
  * test passing follow_redirect option (105.3ms)
  * test passing proxy option with proxy_auth (106.9ms)
  * test request raises error tuple (104.9ms)
  * test passing max_redirect option (115.6ms)
  * test request body using Example (111.6ms)


Finished in 2.0 seconds
37 tests, 0 failures

Randomized with seed 264353

您还可以通过更改 test_helper.exs 中的 ExUnit.start 行将此选项默认设置为 true:

ExUnit.start(trace: true)

如果您想要完全自定义的输出，您可以实现自己的格式化程序（参见 https://github.com/elixir-lang/elixir/blob/master/lib/ex_unit/lib/ex_unit/cli_formatter.ex 的示例；这是默认的格式化程序）并配置 ExUnit 以使用它：

ExUnit.start(formatters: [YourFormatterModule])

如何使 Elixir 混合测试输出更详细？

How can I make Elixir mix test output more verbose?

testing

elixir-mix

verbosity

elixir

phoenix-framework