Couple more controller tests

config/controller_test.go

@@ -3,7 +3,18 @@ package config
 import "testing"
 
 func TestController(t *testing.T) {
-	c := controller{parser: new(parser)}
+	p := &parser{filename: "test"}
+	c := newController(p)
+
+	if c == nil || c.parser == nil {
+		t.Fatal("Expected newController to return a non-nil controller with a non-nil parser")
+	}
+	if c.dispenser.cursor != -1 {
+		t.Errorf("Dispenser not initialized properly; expecting cursor at -1, got %d", c.dispenser.cursor)
+	}
+	if c.dispenser.filename != p.filename {
+		t.Errorf("Dispenser's filename should be same as parser's (%s); got '%s'", p.filename, c.dispenser.filename)
+	}
 
 	c.Startup(func() error { return nil })
 	if n := len(c.parser.cfg.Startup); n != 1 {