package config

import (
	"testing"

	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
)

func TestPassword(t *testing.T) {
	defer func() {
		configKey = nil // reset password
	}()
	var err error
	// Empty password should give error
	err = SetConfigPassword("  \t  ")
	require.Error(t, err)

	// Test invalid utf8 sequence
	err = SetConfigPassword(string([]byte{0xff, 0xfe, 0xfd}) + "abc")
	require.Error(t, err)

	// Simple check of wrong passwords
	hashedKeyCompare(t, "mis", "match", false)

	// Check that passwords match after unicode normalization
	hashedKeyCompare(t, "ff\u0041\u030A", "ffÅ", true)

	// Check that passwords preserves case
	hashedKeyCompare(t, "abcdef", "ABCDEF", false)

}

func hashedKeyCompare(t *testing.T, a, b string, shouldMatch bool) {
	err := SetConfigPassword(a)
	require.NoError(t, err)
	k1 := configKey

	err = SetConfigPassword(b)
	require.NoError(t, err)
	k2 := configKey

	if shouldMatch {
		assert.Equal(t, k1, k2)
	} else {
		assert.NotEqual(t, k1, k2)
	}
}