g := NewWithT(t)

	firstMsg := diag.NewMessage(
		diag.NewMessageType(diag.Error, "B1", "Explosion accident: %v"),
		diag.MockResource("SoapBubble"),
		"the bubble is too big",
	)
	secondMsg := diag.NewMessage(
		diag.NewMessageType(diag.Warning, "C1", "Collapse danger: %v"),
		diag.MockResource("GrandCastle"),
		"the castle is too old",
	)

	msgs := diag.Messages{firstMsg, secondMsg}