public void GetRandom()
{
var rd = new RouletteDictionary <string, string>(42);
rd["hello"] = "world";
var key = rd.GetRandomKey();
Assert.Equal("hello", key);
var val = rd.GetRandomValue();
Assert.Equal("world", val);
var kvp = rd.GetRandomKeyAndValue();
Assert.Equal("hello", kvp.Key);
Assert.Equal("world", kvp.Value);
}
public void GetRandomWithCondition()
{
var rd = new RouletteDictionary <string, int>(1000, StringComparer.Ordinal);
for (int i = 0; i < 10; i++)
{
rd[i.ToString()] = i;
}
rd.Add("foo", 1234);
var key = rd.GetRandomKey((v) => v == 1234);
Assert.Equal("foo", key);
var val = rd.GetRandomValue((v) => v == 1234);
Assert.Equal(1234, val);
var kvp = rd.GetRandomKeyAndValue((v) => v == 1234);
Assert.Equal("foo", kvp.Key);
Assert.Equal(1234, kvp.Value);
}
