diff --git a/progress_test.go b/progress_test.go
new file mode 100644
index 0000000..622537b
--- /dev/null
+++ b/progress_test.go
@@ -0,0 +1,30 @@
+package mpb
+
+import "testing"
+
+func TestAddBar(t *testing.T) {
+	p := New()
+	count := p.BarsCount()
+	if count != 0 {
+		t.Errorf("Count want: %q, got: %q\n", 0, count)
+	}
+	p.AddBar(10)
+	count = p.BarsCount()
+	if count != 1 {
+		t.Errorf("Count want: %q, got: %q\n", 0, count)
+	}
+}
+
+func TestRemoveBar(t *testing.T) {
+	p := New()
+	b := p.AddBar(10)
+
+	if !p.RemoveBar(b) {
+		t.Error("RemoveBar failure")
+	}
+
+	count := p.BarsCount()
+	if count != 0 {
+		t.Errorf("Count want: %q, got: %q\n", 0, count)
+	}
+}