public void TestLruSetBoundary()
{
var lru = new LruSet <int>();
Assert.False(lru.IsFull);
lru.Add(0);
Assert.False(lru.IsFull);
Assert.Equal(1, lru.Count);
Assert.True(lru.Remove(0));
Assert.Equal(0, lru.Count);
Assert.False(lru.IsFull);
lru.Fill(x => x, 100);
Assert.Equal(100, lru.Count);
Assert.True(lru.IsFull);
for (var i = 0; i < 100; i++)
{
Assert.True(lru.Remove(i));
Assert.False(lru.IsFull);
}
Assert.Equal(0, lru.Count);
lru.Add(0);
Assert.Equal(1, lru.Count);
}
public void TestLruSetConstructor()
{
var lru = new LruSet <int>();
Assert.Equal(100, lru.MaxSize);
lru.Fill(x => x, 100);
Assert.Equal(100, lru.Count);
Assert.True(lru.IsFull);
for (var i = 100; i < 200; i++)
{
lru.Add(i);
}
Assert.Equal(100, lru.Count);
Assert.True(lru.IsFull);
for (var i = 0; i < 100; i++)
{
Assert.False(lru.Contains(i));
}
for (var i = 100; i < 200; i++)
{
Assert.True(lru.Contains(i));
}
Assert.Throws(typeof(ArgumentException), () => lru.Add(100));
Assert.Throws(typeof(ArgumentException), () => lru.Add(101));
var lru2 = new LruSet <int>(1000);
Assert.Equal(1000, lru2.MaxSize);
lru2.Fill(x => x);
Assert.Equal(1000, lru2.Count);
lru2.Fill(x => x + 1000, 100);
for (var i = 0; i < 100; i++)
{
Assert.False(lru2.Contains(i));
}
for (var i = 100; i < 1100; i++)
{
Assert.True(lru2.Contains(i));
}
var lru3 = new LruSet <Order>(10000, new OrderEqualityComparer());
LruSetConstructor(lru3);
var lru4 = new LruSet <Order>(10000, (x1, x2) => x1.Id == x2.Id);
LruSetConstructor(lru4);
}
/// <summary>
/// Ensures that the identified image resides on this server
/// The image will be pulled if the tag is not in a set of known pulled images
/// Images may be removed to make space on the disk by calling EvictImages
/// </summary>
private void PullImage(Identifier identifier)
{
// Pull the docker image. If there is not enough space on disk, evict some images and try again
while (!pulledImages.Refresh(identifier))
{
using (var process = Util.Run("docker", $"pull {identifier.Name}:{identifier.Tag}"))
{
process.WaitForExit();
if (process.ExitCode != 0)
{
if (process.StandardError.ReadToEnd().Contains("no space left on device"))
{
EvictImages();
continue;
}
throw new DockerException(
$"Docker image pull exited with code {process.ExitCode}. Error output follows:\n{process.StandardError.ReadToEnd()}"
);
}
else
{
pulledImages.Add(identifier);
}
}
}
}
public void TestLruSetEliminate()
{
var lru = new LruSet <int>(10000);
lru.Fill(x => x, 10000);
lru.Add(10000);
Assert.False(lru.Contains(0));
for (var i = 0; i < 10000; i++)
{
Assert.True(lru.Contains(i + 1));
}
Assert.True(lru.IsFull);
}