Fix parsing blank lines

cmd/main.go

@@ -1,7 +1,7 @@
 package main
 
 import (
-	// "fmt"
+	"fmt"
 	"github.com/cbednarski/hostess"
 	"os"
 )
@@ -18,4 +18,5 @@ func main() {
 	hostfile := hostess.NewHostfile(hostess.GetHostsPath())
 	hostfile.Load()
 	hostfile.Parse()
+	fmt.Println(hostfile)
 }

hostess.go

@@ -59,6 +59,10 @@ func LooksLikeIpv6(ip string) bool {
 func parseLine(line string) []Hostname {
 	var hostnames []Hostname
 
+	if len(line) == 0 {
+		return hostnames
+	}
+
 	// Parse leading # for disabled lines
 	enabled := true
 	if line[0:1] == "#" {

hostess_test.go

@@ -174,6 +174,12 @@ func TestListDomainsByIp(t *testing.T) {
 func TestParseLine(t *testing.T) {
 	var hosts = []Hostname{}
 
+	// Blank line
+	hosts = parseLine("")
+	if len(hosts) > 0 {
+		t.Error("Expected to find zero hostnames")
+	}
+
 	// Comment
 	hosts = parseLine("# The following lines are desirable for IPv6 capable hosts")
 	if len(hosts) > 0 {