Add List test

list_test.go

@@ -0,0 +1,57 @@
+package cview
+
+import (
+	"testing"
+)
+
+const (
+	listTextA = "Hello, world!"
+	listTextB = "Goodnight, moon!"
+	listTextC = "Hello, Dolly!"
+)
+
+func TestList(t *testing.T) {
+	t.Parallel()
+
+	l := NewList()
+	if l.GetItemCount() != 0 {
+		t.Errorf("failed to initialize List: expected item count 0, got %d", l.GetItemCount())
+	} else if l.GetCurrentItem() != 0 {
+		t.Errorf("failed to initialize List: expected current item 0, got %d", l.GetCurrentItem())
+	}
+
+	l.AddItem(listTextA, listTextB, 'a', nil)
+	if l.GetItemCount() != 1 {
+		t.Errorf("failed to update List: expected item count 1, got %d", l.GetItemCount())
+	} else if l.GetCurrentItem() != 0 {
+		t.Errorf("failed to update List: expected current item 0, got %d", l.GetCurrentItem())
+	}
+
+	mainText, secondaryText := l.GetItemText(0)
+	if mainText != listTextA {
+		t.Errorf("failed to update List: expected main text %s, got %s", listTextA, mainText)
+	} else if secondaryText != listTextB {
+		t.Errorf("failed to update List: expected secondary text %s, got %s", listTextB, secondaryText)
+	}
+
+	l.AddItem(listTextB, listTextC, 'a', nil)
+	if l.GetItemCount() != 2 {
+		t.Errorf("failed to update List: expected item count 1, got %v", l.GetItemCount())
+	} else if l.GetCurrentItem() != 0 {
+		t.Errorf("failed to update List: expected current item 0, got %v", l.GetCurrentItem())
+	}
+
+	mainText, secondaryText = l.GetItemText(1)
+	if mainText != listTextB {
+		t.Errorf("failed to update List: expected main text %s, got %s", listTextB, mainText)
+	} else if secondaryText != listTextC {
+		t.Errorf("failed to update List: expected secondary text %s, got %s", listTextC, secondaryText)
+	}
+
+	app, err := newTestApp(l)
+	if err != nil {
+		t.Errorf("failed to initialize Application: %s", err)
+	}
+
+	l.Draw(app.screen)
+}