public void MostRecentThreeShouldReturnThreeMessages()
{
ChatHistory history = new ChatHistory();
history.AddMessage(new ChatMessage("0", "MSA")); // first
history.AddMessage(new ChatMessage("1", "MSA")); // second
history.AddMessage(new ChatMessage("2", "MSA")); // third
history.AddMessage(new ChatMessage("3", "MSA")); // fourth
List <ChatMessage> recentMessages = history.MostRecent(3);
Assert.AreEqual(3, recentMessages.Count);
}
public void MostRecentThreeShouldReturnThreeMostRecentMessages()
{
ChatHistory history = new ChatHistory();
history.AddMessage(new ChatMessage("0", "MSA")); // first
history.AddMessage(new ChatMessage("1", "MSA")); // second
history.AddMessage(new ChatMessage("2", "MSA")); // third
history.AddMessage(new ChatMessage("3", "MSA")); // fourth
List <ChatMessage> recentMessages = history.MostRecent(3);
Assert.That(recentMessages[0].Equals(new ChatMessage("1", "MSA")));
Assert.That(recentMessages[1].Equals(new ChatMessage("2", "MSA")));
Assert.That(recentMessages[2].Equals(new ChatMessage("3", "MSA")));
}
public void TestAddDelete()
{
// 数据存储在文件中，每次运行只测试新加消息。
using ChatHistory ch = new ChatHistory(".", 0, -1, -1);
List <long> addedIds = new List <long>();
for (int i = 0; i < 10; ++i)
{
addedIds.Add(ch.AddMessage("" + i, "" + i));
}
List <long> deletedIds = new List <long>();
foreach (long id in addedIds)
{
if (id % 2 == 0)
{
continue;
}
ch.DeleteMessage(id);
deletedIds.Add(id);
}
for (int i = 0; i < addedIds.Count; ++i)
{
long id = addedIds[i];
List <ChatHistoryMessage> msgs = ch.ReadMessage(id, 1);
Assert.IsTrue(msgs.Count == 1);
ChatHistoryMessage msg = msgs[^ 1];
public void MostRecentZeroShouldReturnEmptyList()
{
ChatHistory history = new ChatHistory();
history.AddMessage(message);
Assert.That(history.MostRecent(0).Count == 0);
}
public void MostRecentShouldNotReturnMoreMessagesThanItHas()
{
ChatHistory history = new ChatHistory();
history.AddMessage(new ChatMessage("0", "MSA")); // first
List <ChatMessage> recents = history.MostRecent(3);
Assert.AreEqual(recents.Count, 1);
}
public void AddedMessagesShouldBeInHistory()
{
ChatHistory history = new ChatHistory();
history.AddMessage(message);
bool containsMessage = ContainsMessage(history, new ChatMessage(message.message, "MSA"));
Assert.IsTrue(containsMessage);
}
public void AddEmptyMessageThrowsArgumentException()
{
ChatHistory history = new ChatHistory();
try {
history.AddMessage(new ChatMessage("", "MSA"));
Assert.Fail("didn't throw ArgumentException when adding a message with an empty body");
}
catch (System.ArgumentException e) {
Assert.Pass(e.Message);
}
}
