4 files changed, 206 insertions, 0 deletions
diff --git a/test/support/conn_case.ex b/test/support/conn_case.ex
new file mode 100644
index 0000000..6d4859c
--- /dev/null
+++ b/test/support/conn_case.ex
@@ -0,0 +1,38 @@
+defmodule SilmataivasWeb.ConnCase do
+  @moduledoc """
+  This module defines the test case to be used by
+  tests that require setting up a connection.
+
+  Such tests rely on `Phoenix.ConnTest` and also
+  import other functionality to make it easier
+  to build common data structures and query the data layer.
+
+  Finally, if the test case interacts with the database,
+  we enable the SQL sandbox, so changes done to the database
+  are reverted at the end of every test. If you are using
+  PostgreSQL, you can even run database tests asynchronously
+  by setting `use SilmataivasWeb.ConnCase, async: true`, although
+  this option is not recommended for other databases.
+  """
+
+  use ExUnit.CaseTemplate
+
+  using do
+    quote do
+      # The default endpoint for testing
+      @endpoint SilmataivasWeb.Endpoint
+
+      use SilmataivasWeb, :verified_routes
+
+      # Import conveniences for testing with connections
+      import Plug.Conn
+      import Phoenix.ConnTest
+      import SilmataivasWeb.ConnCase
+    end
+  end
+
+  setup tags do
+    Silmataivas.DataCase.setup_sandbox(tags)
+    {:ok, conn: Phoenix.ConnTest.build_conn()}
+  end
+end
diff --git a/test/support/data_case.ex b/test/support/data_case.ex
new file mode 100644
index 0000000..b19132e
--- /dev/null
+++ b/test/support/data_case.ex
@@ -0,0 +1,58 @@
+defmodule Silmataivas.DataCase do
+  @moduledoc """
+  This module defines the setup for tests requiring
+  access to the application's data layer.
+
+  You may define functions here to be used as helpers in
+  your tests.
+
+  Finally, if the test case interacts with the database,
+  we enable the SQL sandbox, so changes done to the database
+  are reverted at the end of every test. If you are using
+  PostgreSQL, you can even run database tests asynchronously
+  by setting `use Silmataivas.DataCase, async: true`, although
+  this option is not recommended for other databases.
+  """
+
+  use ExUnit.CaseTemplate
+
+  using do
+    quote do
+      alias Silmataivas.Repo
+
+      import Ecto
+      import Ecto.Changeset
+      import Ecto.Query
+      import Silmataivas.DataCase
+    end
+  end
+
+  setup tags do
+    Silmataivas.DataCase.setup_sandbox(tags)
+    :ok
+  end
+
+  @doc """
+  Sets up the sandbox based on the test tags.
+  """
+  def setup_sandbox(tags) do
+    pid = Ecto.Adapters.SQL.Sandbox.start_owner!(Silmataivas.Repo, shared: not tags[:async])
+    on_exit(fn -> Ecto.Adapters.SQL.Sandbox.stop_owner(pid) end)
+  end
+
+  @doc """
+  A helper that transforms changeset errors into a map of messages.
+
+      assert {:error, changeset} = Accounts.create_user(%{password: "short"})
+      assert "password is too short" in errors_on(changeset).password
+      assert %{password: ["password is too short"]} = errors_on(changeset)
+
+  """
+  def errors_on(changeset) do
+    Ecto.Changeset.traverse_errors(changeset, fn {message, opts} ->
+      Regex.replace(~r"%{(\w+)}", message, fn _, key ->
+        opts |> Keyword.get(String.to_existing_atom(key), key) |> to_string()
+      end)
+    end)
+  end
+end
diff --git a/test/support/fixtures/locations_fixtures.ex b/test/support/fixtures/locations_fixtures.ex
new file mode 100644
index 0000000..3b73074
--- /dev/null
+++ b/test/support/fixtures/locations_fixtures.ex
@@ -0,0 +1,69 @@
+defmodule Silmataivas.LocationsFixtures do
+  @moduledoc """
+  This module defines test helpers for creating
+  entities via the `Silmataivas.Locations` context.
+  """
+
+  import Silmataivas.UsersFixtures
+
+  @doc """
+  Generate a location.
+  """
+  def location_fixture(attrs \\ %{}) do
+    # Create a user first if user_id is not provided
+    user =
+      if Map.has_key?(attrs, :user_id) or Map.has_key?(attrs, "user_id"),
+        do: nil,
+        else: user_fixture()
+
+    {:ok, location} =
+      attrs
+      |> Enum.into(%{
+        latitude: 120.5,
+        longitude: 120.5,
+        user_id: (user && user.id) || attrs[:user_id] || attrs["user_id"]
+      })
+      |> Silmataivas.Locations.create_location()
+
+    location
+  end
+
+  @doc """
+  Generate a location with a specific user.
+  """
+  def location_fixture_with_user(user, attrs \\ %{}) do
+    {:ok, location} =
+      attrs
+      |> Enum.into(%{
+        latitude: 120.5,
+        longitude: 120.5,
+        user_id: user.id
+      })
+      |> Silmataivas.Locations.create_location()
+
+    location
+  end
+
+  @doc """
+  Generate location attributes with invalid values.
+  """
+  def invalid_location_attrs do
+    %{
+      latitude: nil,
+      longitude: nil,
+      user_id: nil
+    }
+  end
+
+  @doc """
+  Generate location attributes with extreme values.
+  """
+  def extreme_location_attrs do
+    %{
+      # Extreme value outside normal range
+      latitude: 1000.0,
+      # Extreme value outside normal range
+      longitude: 1000.0
+    }
+  end
+end
diff --git a/test/support/fixtures/users_fixtures.ex b/test/support/fixtures/users_fixtures.ex
new file mode 100644
index 0000000..8c26ab5
--- /dev/null
+++ b/test/support/fixtures/users_fixtures.ex
@@ -0,0 +1,41 @@
+defmodule Silmataivas.UsersFixtures do
+  @moduledoc """
+  This module defines test helpers for creating
+  entities via the `Silmataivas.Users` context.
+  """
+
+  @doc """
+  Generate a unique user user_id.
+  """
+  def unique_user_user_id, do: "some user_id#{System.unique_integer([:positive])}"
+
+  @doc """
+  Generate a user.
+  """
+  def user_fixture(attrs \\ %{}) do
+    {:ok, user} =
+      attrs
+      |> Enum.into(%{
+        role: "user",
+        user_id: unique_user_user_id()
+      })
+      |> Silmataivas.Users.create_user()
+
+    user
+  end
+
+  @doc """
+  Generate an admin user.
+  """
+  def admin_fixture(attrs \\ %{}) do
+    {:ok, user} =
+      attrs
+      |> Enum.into(%{
+        role: "admin",
+        user_id: unique_user_user_id()
+      })
+      |> Silmataivas.Users.create_user()
+
+    user
+  end
+end