Added test for cli.go

cli.go

@@ -23,7 +23,7 @@ import (
 )
 
 // Reads command line arguments and runs rem.
-func run() error {
+func run(remfile string) error {
 	// read flags
 	globalFlag := flag.Bool("g", false, "use global rem file")
 	helpFlag := flag.Bool("h", false, "show this help")
@@ -36,7 +36,7 @@ func run() error {
 	rem := &Rem{
 		global: *globalFlag,
 		File: File{
-			filename: ".rem",
+			filename: remfile,
 		},
 	}
 	rem.read()

cli_test.go

@@ -0,0 +1,23 @@
+package main
+
+import (
+	"io/ioutil"
+	"os"
+	"testing"
+)
+
+func TestRunDefault(t *testing.T) {
+	rescueStdout := os.Stdout
+	r, w, _ := os.Pipe()
+	os.Stdout = w
+
+	err := run(remfile)
+	if err != nil {
+		t.Error("Error when calling without argument!")
+	}
+
+	w.Close()
+	out, _ := ioutil.ReadAll(r)
+	os.Stdout = rescueStdout
+	t.Log(out)
+}

main.go

@@ -17,7 +17,7 @@
 package main
 
 func main() {
-	if err := run(); err != nil {
+	if err := run(".rem"); err != nil {
 		exit(err)
 	}
 }