/// <summary>
/// Tests a simple node read/write operation.
/// </summary>
/// <param name="cache"></param>
public void DoOsmDataCacheTestNode(OsmDataCache cache)
{
Node node = Node.Create(1, new TagsCollection(
Tag.Create("node", "yes")), 1, 2);
// test invalid stuff.
Assert.Throws <ArgumentNullException>(() => cache.AddNode(null));
Assert.Throws <Exception>(() => cache.AddNode(new Node()));
Assert.IsNull(cache.GetNode(node.Id.Value));
cache.AddNode(node);
Assert.IsTrue(cache.ContainsNode(node.Id.Value));
Node readNode = cache.GetNode(node.Id.Value);
Assert.IsNotNull(readNode);
Assert.AreEqual(1, readNode.Id.Value);
Assert.AreEqual(1, readNode.Latitude.Value);
Assert.AreEqual(2, readNode.Longitude.Value);
Assert.IsNotNull(node.Tags);
Assert.AreEqual(1, node.Tags.Count);
Assert.AreEqual("yes", node.Tags["node"]);
Assert.IsTrue(cache.TryGetNode(node.Id.Value, out readNode));
Assert.IsNotNull(readNode);
Assert.AreEqual(1, readNode.Id.Value);
Assert.AreEqual(1, readNode.Latitude.Value);
Assert.AreEqual(2, readNode.Longitude.Value);
Assert.IsNotNull(node.Tags);
Assert.AreEqual(1, node.Tags.Count);
Assert.AreEqual("yes", node.Tags["node"]);
Assert.IsTrue(cache.RemoveNode(node.Id.Value));
Assert.IsFalse(cache.ContainsNode(node.Id.Value));
Assert.IsFalse(cache.RemoveNode(node.Id.Value));
}
/// <summary>
/// Reports that the node with the given id was used.
/// </summary>
/// <param name="nodeId"></param>
private void ReportNodeUsage(long nodeId)
{
int nodeCount;
if (_nodesUsedTwiceOrMore.TryGetValue(nodeId, out nodeCount))
{ // node is used twice or more.
nodeCount--;
if (nodeCount > 0)
{ // update count.
_nodesUsedTwiceOrMore[nodeId] = nodeCount;
}
else
{ // remove twice or more.
_nodesUsedTwiceOrMore.Remove(nodeId);
}
}
else
{ // the node was used for the last time.
_dataCache.RemoveNode(nodeId);
}
}