create basic controller

pkg/game/controller_test.go

@@ -0,0 +1,25 @@
+package game_test
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/iliadenisov/galaxy/pkg/game"
+	"github.com/iliadenisov/galaxy/pkg/util"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestComposeGame(t *testing.T) {
+	root, cleanup := util.CreateWorkDir(t)
+	defer cleanup()
+	players := 20
+	races := make([]string, players)
+	for i := range players {
+		races[i] = fmt.Sprintf("race_%02d", i)
+	}
+	_, err := game.ComposeGame(func(p *game.Param) { p.StoragePath = root }, races)
+	assert.NoError(t, err)
+	_, err = game.ComposeGame(func(p *game.Param) { p.StoragePath = root }, races)
+	assert.Error(t, err)
+	assert.ErrorContains(t, err, "state for turn 0 already saved")
+}