add test for Dolt table adapter registry

Author: elianddb

go/libraries/doltcore/sqle/adapters/table_adapter_test.go

@@ -0,0 +1,64 @@
+package adapters
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+
+	"github.com/dolthub/go-mysql-server/sql"
+
+	"github.com/dolthub/dolt/go/libraries/doltcore/doltdb"
+	"github.com/dolthub/dolt/go/libraries/doltcore/env"
+)
+
+type mockAdapter struct {
+	name string
+}
+
+func (m mockAdapter) NewTable(_ *sql.Context, _ string, _ *doltdb.DoltDB, _ *doltdb.WorkingSet, _ env.RootsProvider[*sql.Context]) sql.Table {
+	return nil
+}
+
+func (m mockAdapter) TableName() string {
+	return m.name
+}
+
+func TestDoltTableAdapterRegistry(t *testing.T) {
+	registry := newDoltTableAdapterRegistry()
+
+	statusAdapter := mockAdapter{name: "status"}
+	logAdapter := mockAdapter{name: "log"}
+
+	registry.AddAdapter(doltdb.StatusTableName, statusAdapter, "status")
+	registry.AddAdapter(doltdb.LogTableName, logAdapter, "log")
+
+	t.Run("GetAdapter", func(t *testing.T) {
+		adapter, ok := registry.GetAdapter("dolt_status")
+		require.True(t, ok)
+		require.Equal(t, "status", adapter.TableName())
+
+		adapter, ok = registry.GetAdapter("status")
+		require.True(t, ok)
+		require.Equal(t, "status", adapter.TableName())
+
+		_, ok = registry.GetAdapter("unknown_alias")
+		require.False(t, ok)
+
+		_, ok = registry.GetAdapter("dolt_unknown")
+		require.False(t, ok)
+	})
+
+	t.Run("NormalizeName", func(t *testing.T) {
+		normalized := registry.NormalizeName("status")
+		require.Equal(t, "dolt_status", normalized)
+
+		normalized = registry.NormalizeName("log")
+		require.Equal(t, "dolt_log", normalized)
+
+		normalized = registry.NormalizeName("dolt_status")
+		require.Equal(t, "dolt_status", normalized)
+
+		normalized = registry.NormalizeName("unknown_table")
+		require.Equal(t, "unknown_table", normalized)
+	})
+}