Add Checkbox test

checkbox_test.go

@@ -0,0 +1,56 @@
+package cview
+
+import (
+	"testing"
+
+	"github.com/gdamore/tcell"
+)
+
+const (
+	testCheckboxLabelA = "Hello, world!"
+	testCheckboxLabelB = "Goodnight, moon!"
+)
+
+func TestCheckbox(t *testing.T) {
+	t.Parallel()
+
+	c, sc, err := testCheckbox()
+	if err != nil {
+		t.Error(err)
+	}
+	if c.IsChecked() {
+		t.Errorf("failed to initalize checkbox: incorrect initial state: expected unchecked, got checked")
+	} else if c.GetLabel() != testCheckboxLabelA {
+		t.Errorf("failed to initalize checkbox: incorrect label: expected %s, got %s", testCheckboxLabelA, c.GetLabel())
+	}
+
+	c.SetLabel(testCheckboxLabelB)
+	if c.GetLabel() != testCheckboxLabelB {
+		t.Errorf("failed to set checkbox label: incorrect label: expected %s, got %s", testCheckboxLabelA, c.GetLabel())
+	}
+
+	c.SetChecked(true)
+	if !c.IsChecked() {
+		t.Errorf("failed to update checkbox state: incorrect state: expected checked, got unchecked")
+	}
+
+	c.SetChecked(false)
+	if c.IsChecked() {
+		t.Errorf("failed to update checkbox state: incorrect state: expected unchecked, got checked")
+	}
+
+	c.Draw(sc)
+}
+
+func testCheckbox() (*Checkbox, tcell.Screen, error) {
+	c := NewCheckbox()
+
+	sc := tcell.NewSimulationScreen("UTF-8")
+	sc.SetSize(80, 24)
+
+	_ = NewApplication().SetRoot(c, true).SetScreen(sc)
+
+	c.SetLabel(testCheckboxLabelA)
+
+	return c, sc, nil
+}