Impossible to use utf

[pahanini]

It seems something wrong with encoding or decoding of utf. Consider this test:

import (
    "github.com/smartystreets/mafsa"
    "github.com/stretchr/testify/require"
    "testing"
)

func TestRussian(t *testing.T) {
    a := mafsa.New()
    a.Insert("я") // I'm in russian
    a.Finish()
    a.Save("test")
    require.True(t, a.Contains("я")) // Fine

    b, err := mafsa.Load("test")
    require.NoError(t, err)
    require.True(t, b.Contains("я")) // Failure!!
}

func TestSpanish(t *testing.T) {
    a := mafsa.New()
    a.Insert("Gracías")
    a.Finish()
    a.Save("test")
    require.True(t, a.Contains("Gracías")) // Thank you in spanish

    b, err := mafsa.Load("test")
    require.NoError(t, err)
    require.True(t, b.Contains("Gracías")) // Failure!!
}

[mdwhatcott]

@mholt - Does mafsa support non-ascii characters?

[pahanini]

@mholt Not sure but I did find any alphabet limitations here. It works with non-ascii but it seems an error during load/save process. Look at the test it works fine with buildTree and fails only after I load it from file and start to use minTree

[pahanini]

It seems merging this PR will solve this issue https://github.com/smartystreets/mafsa/pull/8