Extend configuration

config/config_test.go

@@ -0,0 +1,42 @@
+package config
+
+import (
+	"context"
+	"os"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestNewConfig(t *testing.T) {
+	t.Parallel()
+
+	ctx := context.Background()
+
+	t.Run("no envs", func(t *testing.T) {
+
+		config, err := NewConfig(ctx)
+		require.NoError(t, err)
+
+		assert.Equal(t, "./db", config.DB.Path)
+	})
+
+	t.Run("env without prefix", func(t *testing.T) {
+		require.NoError(t, os.Setenv("DB_PATH", "./old_db"))
+
+		config, err := NewConfig(ctx)
+		require.NoError(t, err)
+
+		assert.Equal(t, "./old_db", config.DB.Path)
+	})
+
+	t.Run("prefix env override", func(t *testing.T) {
+		require.NoError(t, os.Setenv("WEBARCHIVE_DB_PATH", "./new_db"))
+
+		config, err := NewConfig(ctx)
+		require.NoError(t, err)
+
+		assert.Equal(t, "./new_db", config.DB.Path)
+	})
+}