public void EditMessageByAdmin_MessageChangeText()
{
StubUser admin = new StubUser(Guid.NewGuid());
StubUser[] admins = new StubUser[] { admin };
StubUser user = new StubUser(Guid.NewGuid());
StubUser[] users = new StubUser[] { user };
GroupChat chat = new GroupChat(
Guid.NewGuid(),
new List <Message>(),
new List <IUser>(users),
new List <IUser>(admins));
Message message = new Message(Guid.NewGuid(), user, "hello");
string newText = "NewHello";
chat.EditMessage(message.Id, admin, newText);
foreach (Message mes in chat.Messages)
{
Assert.IsTrue(mes.Text == newText);
}
}