Add test for hasEvent true

internal/sharedcomponent/sharedcomponent_test.go

@@ -210,3 +210,27 @@ type testHost struct {
 func (h *testHost) Report(e *componentstatus.Event) {
 	h.newStatusFunc(h.InstanceID, e)
 }
+
+func TestReportWithExistingEvent(t *testing.T) {
+	reportedStatuses := make([]componentstatus.Status, 0)
+	newStatusFunc := func(id *componentstatus.InstanceID, ev *componentstatus.Event) {
+		reportedStatuses = append(reportedStatuses, ev.Status())
+	}
+	base := &baseComponent{}
+	base.StartFunc = func(_ context.Context, host component.Host) error {
+		e := componentstatus.NewEvent(componentstatus.StatusOK)
+		componentstatus.ReportStatus(host, e)
+		componentstatus.ReportStatus(host, e)
+		return nil
+	}
+	comps := NewMap[component.ID, *baseComponent]()
+	comp, err := comps.LoadOrStore(
+		id,
+		func() (*baseComponent, error) { return base, nil },
+	)
+	require.NoError(t, err)
+	baseHost := componenttest.NewNopHost()
+	err = comp.Start(context.Background(), &testHost{Host: baseHost, InstanceID: &componentstatus.InstanceID{}, newStatusFunc: newStatusFunc})
+	require.NoError(t, err)
+	require.Equal(t, 3, len(reportedStatuses))
+}