add listbox test

listbox_test.go

@@ -0,0 +1,64 @@
+package clui
+
+import (
+	"testing"
+)
+
+func TestListBox(t *testing.T) {
+	width, height := 10, 5
+	lbox := NewListBox(nil, nil, width, height, DoNotScale)
+
+	w, h := lbox.Size()
+	if w != width {
+		t.Errorf("Width invalid: %v instead of %v", w, width)
+	}
+	if h != height {
+		t.Errorf("Width invalid: %v instead of %v", height, height)
+	}
+
+	lbox.AddItem("Item1")
+	lbox.AddItem("Item2")
+	lbox.AddItem("Item3")
+
+	if lbox.ItemCount() != 3 {
+		t.Errorf("Item count must be %v instead of %v", 3, lbox.ItemCount())
+	}
+
+	n := lbox.FindItem("Item2", false)
+	if n != 1 {
+		t.Errorf("Item2 is not found")
+	}
+	n = lbox.FindItem("item2", true)
+	if n != 1 {
+		t.Errorf("item2 is not found")
+	}
+	lbox.SelectItem(n)
+	str := lbox.SelectedItemText()
+	if str != "Item2" {
+		t.Errorf("The second item text must be %v, found %v", "Item2", str)
+	}
+	n = lbox.FindItem("item4", false)
+	if n != -1 {
+		t.Errorf("item4 should not be found")
+	}
+	lbox.RemoveItem(1)
+	if lbox.ItemCount() != 2 {
+		t.Errorf("After deleting an item the list box item count should decrease (%v)", lbox.ItemCount())
+	}
+	str = lbox.SelectedItemText()
+	if str != "Item3" {
+		t.Errorf("The second item text must be %v, found %v", "Item3", str)
+	}
+	n = lbox.FindItem("Item2", false)
+	if n != -1 {
+		t.Errorf("Item2 should not be found")
+	}
+	n = lbox.FindItem("item3", true)
+	if n != 1 {
+		t.Errorf("Item3 should #%v instead of %v", 1, n)
+	}
+	lbox.Clear()
+	if lbox.ItemCount() != 0 {
+		t.Errorf("Clear failed")
+	}
+}