public void ScavengeOnGrow()
{
var dictionary = new WeakValueDictionary <object, object>();
for (int i = 0; i < 100; i++)
{
dictionary[new Object()] = new Object();
// Randomly collect some
if (i == 15)
{
GC.Collect();
}
}
// We should have scavenged at least once
Console.WriteLine("Count {0}", dictionary.Count);
Assertion.AssertEquals(true, dictionary.Count < 100);
// Finish with explicit scavenge
int count1 = dictionary.Count;
int removed = dictionary.Scavenge();
int count2 = dictionary.Count;
Console.WriteLine("Removed {0}", removed);
Assertion.AssertEquals(removed, count1 - count2);
}
public void ExplicitScavenge()
{
object k1 = new object();
object v1 = new object();
var dictionary = new WeakValueDictionary <object, object>();
dictionary[k1] = v1;
Assertion.AssertEquals(1, dictionary.Count);
v1 = null;
GC.Collect();
dictionary.Scavenge();
Assertion.AssertEquals(0, dictionary.Count);
}
public void Indexer_NullValue_ReferenceFound()
{
string k1 = "key";
string v1 = null;
var dictionary = new WeakValueDictionary<string, string>();
dictionary[k1] = v1;
// Now look for the same key we inserted
string v2 = dictionary[k1];
Assertion.AssertEquals(true, Object.ReferenceEquals(v1, v2));
Assertion.AssertEquals(true, dictionary.Contains(k1));
// Should not scavenge values that are null, rather than collected
dictionary.Scavenge();
Assertion.AssertEquals(1, dictionary.Count);
}
public void Indexer_NullValue_ReferenceFound()
{
string k1 = "key";
string v1 = null;
var dictionary = new WeakValueDictionary <string, string>();
dictionary[k1] = v1;
// Now look for the same key we inserted
string v2 = dictionary[k1];
Assertion.AssertEquals(true, Object.ReferenceEquals(v1, v2));
Assertion.AssertEquals(true, dictionary.Contains(k1));
// Should not scavenge values that are null, rather than collected
dictionary.Scavenge();
Assertion.AssertEquals(1, dictionary.Count);
}
public void TryGetNullValue_ReferenceFound()
{
string k1 = "key";
string v1 = null;
var dictionary = new WeakValueDictionary <string, string>();
dictionary[k1] = v1;
// Now look for the same key we inserted
string v2;
bool result = dictionary.TryGetValue(k1, out v2);
Assertion.AssertEquals(true, result);
Assertion.AssertEquals(true, Object.ReferenceEquals(v1, v2));
// Should not scavenge values that are null, rather than collected
dictionary.Scavenge();
Assertion.AssertEquals(1, dictionary.Count);
}
public void ScavengeOnGrow()
{
var dictionary = new WeakValueDictionary<object, object>();
for (int i = 0; i < 100; i++)
{
dictionary[new Object()] = new Object();
// Randomly collect some
if (i == 15)
{
GC.Collect();
}
}
// We should have scavenged at least once
Console.WriteLine("Count {0}", dictionary.Count);
Assertion.AssertEquals(true, dictionary.Count < 100);
// Finish with explicit scavenge
int count1 = dictionary.Count;
int removed = dictionary.Scavenge();
int count2 = dictionary.Count;
Console.WriteLine("Removed {0}", removed);
Assertion.AssertEquals(removed, count1 - count2);
}
public void ExplicitScavenge()
{
object k1 = new object();
object v1 = new object();
var dictionary = new WeakValueDictionary<object, object>();
dictionary[k1] = v1;
Assertion.AssertEquals(1, dictionary.Count);
v1 = null;
GC.Collect();
dictionary.Scavenge();
Assertion.AssertEquals(0, dictionary.Count);
}
public void TryGetNullValue_ReferenceFound()
{
string k1 = "key";
string v1 = null;
var dictionary = new WeakValueDictionary<string, string>();
dictionary[k1] = v1;
// Now look for the same key we inserted
string v2;
bool result = dictionary.TryGetValue(k1, out v2);
Assertion.AssertEquals(true, result);
Assertion.AssertEquals(true, Object.ReferenceEquals(v1, v2));
// Should not scavenge values that are null, rather than collected
dictionary.Scavenge();
Assertion.AssertEquals(1, dictionary.Count);
}