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authorPéter Szilágyi <peterke@gmail.com>2015-05-07 19:40:50 +0800
committerPéter Szilágyi <peterke@gmail.com>2015-05-07 19:40:50 +0800
commit43901c92825389b694fb5488c520cf5122f022de (patch)
treecb3954ab520d201f80764e81fb574d34b5b9c0f1 /eth/downloader
parent45f8304f3c44e5379c7e30ab144d73e591e270af (diff)
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eth/downloader: fix priority queue reset, add throttling test
Diffstat (limited to 'eth/downloader')
-rw-r--r--eth/downloader/downloader_test.go48
1 files changed, 48 insertions, 0 deletions
diff --git a/eth/downloader/downloader_test.go b/eth/downloader/downloader_test.go
index 11834d788..bd439d96a 100644
--- a/eth/downloader/downloader_test.go
+++ b/eth/downloader/downloader_test.go
@@ -181,3 +181,51 @@ func TestTaking(t *testing.T) {
t.Error("expected to take 1000, got", len(bs1))
}
}
+
+func TestThrottling(t *testing.T) {
+ minDesiredPeerCount = 4
+ blockTtl = 1 * time.Second
+
+ targetBlocks := 4 * blockCacheLimit
+ hashes := createHashes(0, targetBlocks)
+ blocks := createBlocksFromHashes(hashes)
+ tester := newTester(t, hashes, blocks)
+
+ tester.newPeer("peer1", big.NewInt(10000), hashes[0])
+ tester.newPeer("peer2", big.NewInt(0), common.Hash{})
+ tester.badBlocksPeer("peer3", big.NewInt(0), common.Hash{})
+ tester.badBlocksPeer("peer4", big.NewInt(0), common.Hash{})
+
+ // Concurrently download and take the blocks
+ errc := make(chan error, 1)
+ go func() {
+ errc <- tester.sync("peer1", hashes[0])
+ }()
+
+ done := make(chan struct{})
+ took := []*types.Block{}
+ go func() {
+ for {
+ select {
+ case <-done:
+ took = append(took, tester.downloader.TakeBlocks()...)
+ done <- struct{}{}
+ return
+ default:
+ took = append(took, tester.downloader.TakeBlocks()...)
+ }
+ }
+ }()
+
+ // Synchronize the two threads and verify
+ err := <-errc
+ done <- struct{}{}
+ <-done
+
+ if err != nil {
+ t.Fatalf("failed to synchronize blocks: %v", err)
+ }
+ if len(took) != targetBlocks {
+ t.Fatalf("downloaded block mismatch: have %v, want %v", len(took), targetBlocks)
+ }
+}