Lithium/settings/settings_test.go

package settings

import (
	"os"
	"path/filepath"
	"testing"

	"github.com/spf13/afero"
	"github.com/stretchr/testify/assert"
)

func TestSettingsParsing(t *testing.T) {
	const file string = `{
		"endpoint": "0.0.0.0:8000",
		"token": "foobar",
		"rate_limiter": {
			"requests_per_minute": 20,
			"allowed_burst": 5
		},
		"storage_provider": {
			"type": 0,
			"base_path": "assets"
		}
	}`

	t.Run("Settings parsing is successful", func(t *testing.T) {
		settings := parseSettings([]byte(file))

		assert.Equal(t, "0.0.0.0:8000", settings.Endpoint)
		assert.Equal(t, "foobar", settings.Token)
		assert.Equal(t, "assets", settings.StorageProvider.BasePath)
	})
}

func TestSettingsLoading(t *testing.T) {
	t.Run("Settings loading creates default settings.json when none is present", func(t *testing.T) {
		fileSystem := afero.NewMemMapFs()
		workingDirectory, _ := os.Getwd()

		path := filepath.Join(workingDirectory, "settings.json")

		// Settings file does not exist in the beginning
		doesFileExist, _ := afero.Exists(fileSystem, path)
		assert.False(t, doesFileExist)

		_, err := LoadSettings(fileSystem)
		assert.Nil(t, err)

		// Settings file should be present after calling LoadSettings
		doesFileExist, _ = afero.Exists(fileSystem, path)
		assert.True(t, doesFileExist)
	})
}