public void TileFetcherWithFailingFetchesTest()
{
// Arrange
var tileProvider = new SometimesFailingTileProvider();
var tileSchema = new GlobalSphericalMercator();
var tileSource = new TileSource(tileProvider, tileSchema);
var tileFetcher = new TileFetcher(tileSource, new MemoryCache <Feature>());
// Act
for (int i = 0; i < 100; i++)
{
for (int j = 0; j < 5; j++)
{
tileFetcher.ViewChanged(tileSchema.Extent.ToBoundingBox(), tileSchema.Resolutions[j.ToString()].UnitsPerPixel);
System.Threading.Thread.Sleep(10);
}
}
// Assert
while (tileFetcher.Busy == true)
{
}
;
Assert.Pass("The fetcher did not go into an infinite loop");
}
public void TileFetcherWithFailingFetchesTest()
{
// Arrange
var tileProvider = new SometimesFailingTileProvider();
var tileSchema = new GlobalSphericalMercator();
var tileSource = new TileSource(tileProvider, tileSchema);
var tileFetcher = new TileFetcher(tileSource, new MemoryCache<Feature>());
// Act
for (int i = 0; i < 100; i++)
{
for (int j = 0; j < 5; j++)
{
tileFetcher.ViewChanged(tileSchema.Extent.ToBoundingBox(), tileSchema.Resolutions[j.ToString()].UnitsPerPixel);
System.Threading.Thread.Sleep(10);
}
}
// Assert
while (tileFetcher.Busy) {}
Assert.Pass("The fetcher did not go into an infinite loop");
}
public void TileFetcherWithSometimesFailingFetchesShouldTryAgain()
{
// Arrange
var tileProvider = new SometimesFailingTileProvider();
var tileSchema = new GlobalSphericalMercator();
var tileSource = new TileSource(tileProvider, tileSchema);
using var cache = new MemoryCache <IFeature?>();
var fetchDispatcher = new TileFetchDispatcher(cache, tileSource.Schema, tileInfo => TileToFeature(tileSource, tileInfo));
var tileMachine = new FetchMachine(fetchDispatcher);
var level = 3;
var tilesInLevel = 64;
var fetchInfo = new FetchInfo(tileSchema.Extent.ToMRect(), tileSchema.Resolutions[level].UnitsPerPixel);
// Act
fetchDispatcher.SetViewport(fetchInfo);
tileMachine.Start();
while (fetchDispatcher.Busy)
{
Thread.Sleep(1);
}
var tileCountAfterFirstBatch = tileProvider.TotalCount;
// Act again
fetchDispatcher.SetViewport(fetchInfo);
tileMachine.Start();
while (fetchDispatcher.Busy)
{
Thread.Sleep(1);
}
// Assert
Assert.GreaterOrEqual(tileProvider.TotalCount, tileCountAfterFirstBatch);
Assert.GreaterOrEqual(tileProvider.CountByTile.Values.Sum(), tilesInLevel);
}