import (
	"bytes"
	"strings"
)

// CamelCase converts the string into camel case string
func CamelCase(s string) string {
	if s == "" {
		return ""
	}
	t := make([]byte, 0, 32)
	i := 0
	if isWordSeparator(s[0]) {
		// Need a capital letter; drop the '_'.
		t = append(t, 'X')
		i++
	}
	// Invariant: if the next letter is lower case, it must be converted
	// to upper case.

			want: true,
		},
		{
			name: "foo",
			c:    'f',
			want: false,
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			if got := isWordSeparator(tt.c); got != tt.want {
				t.Errorf("isWordSeparator() = %v, want %v", got, tt.want)
			}
		})
	}
}

func Test_isASCIILower(t *testing.T) {
	tests := []struct {
		name string
		c    byte
		want bool
	}{