Add move and move test

lib/chess/store/move.ex

@@ -0,0 +1,31 @@
+defmodule Chess.Store.Move do
+  @moduledoc false
+
+  use Ecto.Schema
+  use Timex.Ecto.Timestamps
+
+  import Ecto.Changeset
+  # import Ecto.Query
+
+  alias Chess.Store.Game
+
+  schema "moves" do
+    field :from, :map
+    field :to, :map
+
+    field :piece, :map
+    field :piece_captured, :map
+
+    belongs_to :game, Game
+
+    timestamps()
+  end
+
+  def changeset(struct, params \\ %{}) do
+    struct
+    |> cast(params, required_attrs())
+    |> validate_required(required_attrs())
+  end
+
+  defp required_attrs, do: ~w[game_id from to piece]a
+end

priv/repo/migrations/20180504172433_create_moves.exs

@@ -0,0 +1,15 @@
+defmodule Chess.Repo.Migrations.CreateMoves do
+  use Ecto.Migration
+
+  def change do
+    create table(:moves) do
+      add :game_id, references(:games)
+      add :from, :map
+      add :to, :map
+      add :piece, :map
+      add :piece_captured, :map
+
+      timestamps()
+    end
+  end
+end

test/chess/store/move_test.exs

@@ -0,0 +1,81 @@
+defmodule Chess.MoveTest do
+  @moduledoc false
+
+  use Chess.DataCase
+
+  describe "move" do
+    alias Chess.Repo
+    alias Chess.Board
+    alias Chess.Store.Move
+
+    import Chess.Factory
+
+    test "move is valid with a game, a from, and a to" do
+      user = insert(:user, %{email: "link@hyrule.com"})
+      opponent = insert(:user, %{email: "zelda@hyrule.com"})
+
+      game = insert(:game, %{
+        board: Board.default,
+        user_id: user.id,
+        opponent_id: opponent.id,
+      })
+
+      changeset = Move.changeset(%Move{}, %{
+        game_id: game.id,
+        from: %{file: 4, rank: 1},
+        to: %{file: 4, rank: 3},
+        piece: %{"type" => "pawn", "colour" => "white"},
+      })
+
+      assert changeset.valid?
+      assert {:ok, _move} = Repo.insert(changeset)
+    end
+
+    test "move is invalid without a game" do
+      changeset = Move.changeset(%Move{}, %{
+        from: %{file: 4, rank: 1},
+        to: %{file: 4, rank: 3},
+        piece: %{"type" => "pawn", "colour" => "white"},
+      })
+
+      refute changeset.valid?
+    end
+
+    test "move is invalid without a from or to" do
+      user = insert(:user, %{email: "link@hyrule.com"})
+      opponent = insert(:user, %{email: "zelda@hyrule.com"})
+
+      game = insert(:game, %{
+        board: Board.default,
+        user_id: user.id,
+        opponent_id: opponent.id,
+      })
+
+      changeset = Move.changeset(%Move{}, %{
+        game_id: game.id,
+        piece: %{"type" => "pawn", "colour" => "white"},
+      })
+
+      refute changeset.valid?
+    end
+
+    test "move is invalid without a piece" do
+      user = insert(:user, %{email: "link@hyrule.com"})
+      opponent = insert(:user, %{email: "zelda@hyrule.com"})
+
+      game = insert(:game, %{
+        board: Board.default,
+        user_id: user.id,
+        opponent_id: opponent.id,
+      })
+
+      changeset = Move.changeset(%Move{}, %{
+        game_id: game.id,
+        from: %{file: 4, rank: 1},
+        to: %{file: 4, rank: 3},
+      })
+
+      refute changeset.valid?
+    end
+  end
+end