public static void TestExceptions()
{
var dictionary = new NonBlocking.ConcurrentDictionary <string, int>();
Assert.Throws <ArgumentNullException>(
() => dictionary.TryAdd(null, 0));
// "TestExceptions: FAILED. TryAdd didn't throw ANE when null key is passed");
Assert.Throws <ArgumentNullException>(
() => dictionary.ContainsKey(null));
// "TestExceptions: FAILED. Contains didn't throw ANE when null key is passed");
int item;
Assert.Throws <ArgumentNullException>(
() => dictionary.TryRemove(null, out item));
// "TestExceptions: FAILED. TryRemove didn't throw ANE when null key is passed");
Assert.Throws <ArgumentNullException>(
() => dictionary.TryGetValue(null, out item));
// "TestExceptions: FAILED. TryGetValue didn't throw ANE when null key is passed");
Assert.Throws <ArgumentNullException>(
() => { var x = dictionary[null]; });
// "TestExceptions: FAILED. this[] didn't throw ANE when null key is passed");
Assert.Throws <KeyNotFoundException>(
() => { var x = dictionary["1"]; });
// "TestExceptions: FAILED. this[] TryGetValue didn't throw KeyNotFoundException!");
Assert.Throws <ArgumentNullException>(
() => dictionary[null] = 1);
// "TestExceptions: FAILED. this[] didn't throw ANE when null key is passed");
Assert.Throws <ArgumentNullException>(
() => dictionary.GetOrAdd(null, (k) => 0));
// "TestExceptions: FAILED. GetOrAdd didn't throw ANE when null key is passed");
Assert.Throws <ArgumentNullException>(
() => dictionary.GetOrAdd("1", null));
// "TestExceptions: FAILED. GetOrAdd didn't throw ANE when null valueFactory is passed");
Assert.Throws <ArgumentNullException>(
() => dictionary.GetOrAdd(null, 0));
// "TestExceptions: FAILED. GetOrAdd didn't throw ANE when null key is passed");
Assert.Throws <ArgumentNullException>(
() => dictionary.AddOrUpdate(null, (k) => 0, (k, v) => 0));
// "TestExceptions: FAILED. AddOrUpdate didn't throw ANE when null key is passed");
Assert.Throws <ArgumentNullException>(
() => dictionary.AddOrUpdate("1", null, (k, v) => 0));
// "TestExceptions: FAILED. AddOrUpdate didn't throw ANE when null updateFactory is passed");
Assert.Throws <ArgumentNullException>(
() => dictionary.AddOrUpdate(null, (k) => 0, null));
// "TestExceptions: FAILED. AddOrUpdate didn't throw ANE when null addFactory is passed");
dictionary.TryAdd("1", 1);
Assert.Throws <ArgumentException>(
() => ((IDictionary <string, int>)dictionary).Add("1", 2));
// "TestExceptions: FAILED. IDictionary didn't throw AE when duplicate key is passed");
}
private static void GetBenchRndNB()
{
var dict = new NonBlocking.ConcurrentDictionary <int, string>();
Parallel.For(0, 100000, (i) => dict[i] = "qq");
Parallel.For(0, 100000, (i) => { var dummy = dict[i]; });
var benchmarkName = "======== Random Get NonBlocking int->string 1M Ops/sec:";
Action <int, int> act = (i, threadBias) =>
{
string dummy;
int randomIndex = GetRandomIndex(i, threadBias, 100000);
dict.TryGetValue(randomIndex, out dummy);
};
RunBench(benchmarkName, act);
}
private static void TestRead1(int cLevel, int threads, int readsPerThread)
{
IDictionary <int, int> dict = new NonBlocking.ConcurrentDictionary <int, int>(cLevel, 1);
for (int i = 0; i < readsPerThread; i += 2)
{
dict[i] = i;
}
int count = threads;
using (ManualResetEvent mre = new ManualResetEvent(false))
{
for (int i = 0; i < threads; i++)
{
int ii = i;
Task.Run(
() =>
{
for (int j = 0; j < readsPerThread; j++)
{
int val = 0;
if (dict.TryGetValue(j, out val))
{
Assert.Equal(0, j % 2);
Assert.Equal(j, val);
}
else
{
Assert.Equal(1, j % 2);
}
}
if (Interlocked.Decrement(ref count) == 0)
{
mre.Set();
}
});
}
mre.WaitOne();
}
}
