//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void pageCacheMetrics() throws Exception
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void PageCacheMetrics()
{
Label testLabel = Label.label("testLabel");
using (Transaction transaction = _database.beginTx())
{
Node node = _database.createNode(testLabel);
node.SetProperty("property", "value");
transaction.Success();
}
using (Transaction ignored = _database.beginTx())
{
ResourceIterator <Node> nodes = _database.findNodes(testLabel);
assertEquals(1, nodes.Count());
}
AssertMetrics("Metrics report should include page cache pins", PC_PINS, greaterThan(0L));
AssertMetrics("Metrics report should include page cache unpins", PC_UNPINS, greaterThan(0L));
AssertMetrics("Metrics report should include page cache evictions", PC_EVICTIONS, greaterThanOrEqualTo(0L));
AssertMetrics("Metrics report should include page cache page faults", PC_PAGE_FAULTS, greaterThan(0L));
AssertMetrics("Metrics report should include page cache hits", PC_HITS, greaterThan(0L));
AssertMetrics("Metrics report should include page cache flushes", PC_FLUSHES, greaterThanOrEqualTo(0L));
AssertMetrics("Metrics report should include page cache exceptions", PC_EVICTION_EXCEPTIONS, equalTo(0L));
assertEventually("Metrics report should include page cache hit ratio", () => readDoubleValue(metricsCsv(_metricsDirectory, PC_HIT_RATIO)), lessThanOrEqualTo(1.0), 5, SECONDS);
assertEventually("Metrics report should include page cache usage ratio", () => readDoubleValue(metricsCsv(_metricsDirectory, PC_USAGE_RATIO)), lessThanOrEqualTo(1.0), 5, SECONDS);
}
private void AssertNodeWith(Label label, string key, object value)
{
using (ResourceIterator <Node> nodes = _db.findNodes(label, key, value))
{
//JAVA TO C# CONVERTER TODO TASK: Java iterators are only converted within the context of 'while' and 'for' loops:
assertTrue(nodes.hasNext());
//JAVA TO C# CONVERTER TODO TASK: Java iterators are only converted within the context of 'while' and 'for' loops:
Node foundNode = nodes.next();
assertTrue(foundNode.HasLabel(label));
assertEquals(value, foundNode.GetProperty(key));
}
}
private void AssertBothNodesArePresent(Pair <long, long> nodeIds)
{
using (Transaction tx = _db.beginTx())
{
ResourceIterator <Node> origin = _db.findNodes(LABEL, KEY, _point1);
//JAVA TO C# CONVERTER TODO TASK: Java iterators are only converted within the context of 'while' and 'for' loops:
assertTrue(origin.hasNext());
//JAVA TO C# CONVERTER TODO TASK: Java iterators are only converted within the context of 'while' and 'for' loops:
assertEquals(nodeIds.First(), origin.next().Id);
//JAVA TO C# CONVERTER TODO TASK: Java iterators are only converted within the context of 'while' and 'for' loops:
assertFalse(origin.hasNext());
ResourceIterator <Node> center = _db.findNodes(LABEL, KEY, _point2);
//JAVA TO C# CONVERTER TODO TASK: Java iterators are only converted within the context of 'while' and 'for' loops:
assertTrue(center.hasNext());
//JAVA TO C# CONVERTER TODO TASK: Java iterators are only converted within the context of 'while' and 'for' loops:
assertEquals(nodeIds.Other(), center.next().Id);
//JAVA TO C# CONVERTER TODO TASK: Java iterators are only converted within the context of 'while' and 'for' loops:
assertFalse(center.hasNext());
tx.Success();
}
}
private void DeleteHumans()
{
using (Transaction tx = _db.beginTx())
{
using (ResourceIterator <Node> humans = _db.findNodes(_human))
{
while (humans.MoveNext())
{
humans.Current.delete();
}
}
tx.Success();
}
}