chess/test/chess/store/user_test.exs

defmodule Chess.Store.UserTest do
  use Chess.DataCase

  import Chess.Factory

  describe "user" do
    alias Chess.Store.User
    alias Chess.Repo

    @valid_attrs %{
      name: "Zelda",
      email: "zelda@hyrule.com",
      password: "password"
    }
    @invalid_attrs %{}

    test "changeset with valid attributes" do
      changeset = User.changeset(%User{}, @valid_attrs)
      assert changeset.valid?
    end

    test "changeset with invalid attributes" do
      changeset = User.changeset(%User{}, @invalid_attrs)
      refute changeset.valid?
    end

    test "email must be unique" do
      insert(:user, %{email: "zelda@hyrule.com"})

      changeset = User.changeset(%User{}, @valid_attrs)
      {:error, changeset} = Repo.insert(changeset)

      refute changeset.valid?
    end
  end
end