moxley

defmodule TestReporter do
  # Why: This is useful for tracking down intermittent errors and output in tests.
  # What: Reports the test that ran in the test suite, in the order that they ran, and includes each test's ordinal number
  # in the order of the test's finish time.
  # 
  # Usage:
  # 1. Save this file to `tests/support` or anywhere it'll get picked up by the Elixir compiler.
  # 2. In test_helper.ex, add this GenServer as an ExUnit formater, like this:
  #    `ExUnit.start(exclude: [:external], formatters: [ExUnit.CLIFormatter, TestReporter])`
  # 3. Run the test suite. At the end of the run, it will list all the tests that ran, in the order that they ran.

moxley

#!/bin/sh

# Example:
# gclean master

trunk="$1"
if [ -z "${trunk}" ]; then
  echo "Usage: $0 TRUNK"
  exit 2
fi

moxley

defmodule MoxleyApiUtil.TypescriptInterfaceGenerator do
  alias OpenApiSpex.Schema

  def to_ts_interface(%Schema{type: :object} = schema) do
    header = "interface #{schema.title} {"
    body = Enum.map(schema.properties, &to_ts_property_line/1) |> Enum.join("\n")
    header <> "\n" <> body <> "\n}\n"
  end

  defp to_ts_property_line({name, schema}) do

moxley

defmodule MyApp.Repo.Migrations.InitialSchema do
  use Ecto.Migration

  def up do
    db = Application.fetch_env!(:my_app, MyApp.Repo)
    file_path = "priv/repo/initial_schema.sql"

    {output, errno} =
      System.cmd(
        "psql",

moxley

Error message:

[error] GenServer #PID<0.1901.0> terminating
** (MatchError) no match of right hand side value: :external
    (phoenix_live_view) lib/phoenix_live_view/channel.ex:152: Phoenix.LiveView.Channel.call_mount_handle_params/2
    (phoenix_live_view) lib/phoenix_live_view/channel.ex:443: Phoenix.LiveView.Channel.verified_mount/9
    (stdlib) gen_server.erl:637: :gen_server.try_dispatch/4
    (stdlib) gen_server.erl:711: :gen_server.handle_msg/6
    (stdlib) proc_lib.erl:249: :proc_lib.init_p_do_apply/3
Last message: {:mount, Phoenix.LiveView.Channel}

moxley

defmodule DialyzerTest do
  def call(map) when is_map(map) do
    with :ok <- validate_1(map[:value_1]),
         :ok <- validate_2(map[:value_2]) do
      :ok
    else
      {:error, reason} ->
        # lib/dialyzer_test.ex:10:exact_eq
        # The test :bad_value_2 == :bad_value_1 can never evaluate to 'true'.
        if !map[:required] && reason == :bad_value_1 do

moxley

(UndefinedFunctionError) function MyApp.FooController.init/1 is undefined or private

The problem is that your test module is named the same as your controller. Instead, it should have Test appended to the end of the module name.

moxley

Oh noes! Are you getting an error reported by dialyzer that is related to a mix.exs dependency, and you want to modify the dependency to try to change the behavior?

With a regular dependency, let's say you modify a file inside of deps/foo/*. Run the following:

1. mix deps.compile foo
2. mix dialyzer.build && mix dialyzer

With a dependency specified with the file: ... option, you only need:

moxley

#!/bin/sh -e

# Run this script as root

apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y locales
sed -i -e 's/# en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/' /etc/locale.gen && \
  dpkg-reconfigure --frontend=noninteractive locales && \
  update-locale LANG=en_US.UTF-8
ENV LANG en_US.UTF-8

moxley

#
# Build image
#

FROM elixir:1.7.4-alpine AS build

# Set the locale
ENV LANG en_US.UTF-8
ENV LANGUAGE en_US:en
ENV LC_ALL en_US.UTF-8