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authorPéter Szilágyi <peterke@gmail.com>2015-04-27 17:33:06 +0800
committerPéter Szilágyi <peterke@gmail.com>2015-04-27 17:33:06 +0800
commit8de8f61d369b5830f818eddf446e8368ecf11f0f (patch)
tree4f5c118171bca51faee41feddc836736ad017499 /p2p/discover
parent0201c04b95df3224e5fe1a3a591dba95ab8030dd (diff)
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p2p/discover: write the basic tests, catch RLP bug
Diffstat (limited to 'p2p/discover')
-rw-r--r--p2p/discover/database.go20
-rw-r--r--p2p/discover/database_test.go136
-rw-r--r--p2p/discover/table.go2
3 files changed, 150 insertions, 8 deletions
diff --git a/p2p/discover/database.go b/p2p/discover/database.go
index ece0618ff..c6f70972e 100644
--- a/p2p/discover/database.go
+++ b/p2p/discover/database.go
@@ -14,6 +14,9 @@ import (
"github.com/syndtr/goleveldb/leveldb/storage"
)
+// Special node ID to use as a nil element.
+var nodeDBNilNodeID = NodeID{}
+
// nodeDB stores all nodes we know about.
type nodeDB struct {
lvl *leveldb.DB
@@ -27,7 +30,7 @@ var (
nodeDBDiscoverRoot = ":discover"
nodeDBDiscoverPing = nodeDBDiscoverRoot + ":lastping"
- nodeDBDiscoverBond = nodeDBDiscoverRoot + ":lastbond"
+ nodeDBDiscoverPong = nodeDBDiscoverRoot + ":lastpong"
)
// newNodeDB creates a new node database for storing and retrieving infos about
@@ -91,6 +94,9 @@ func newPersistentNodeDB(path string) (*nodeDB, error) {
// makeKey generates the leveldb key-blob from a node id and its particular
// field of interest.
func makeKey(id NodeID, field string) []byte {
+ if bytes.Equal(id[:], nodeDBNilNodeID[:]) {
+ return []byte(field)
+ }
return append(nodeDBItemPrefix, append(id[:], field...)...)
}
@@ -176,14 +182,14 @@ func (db *nodeDB) updateLastPing(id NodeID, instance time.Time) error {
return db.storeInt64(makeKey(id, nodeDBDiscoverPing), instance.Unix())
}
-// lastBond retrieves the time of the last successful bonding with a remote node.
-func (db *nodeDB) lastBond(id NodeID) time.Time {
- return time.Unix(db.fetchInt64(makeKey(id, nodeDBDiscoverBond)), 0)
+// lastPong retrieves the time of the last successful contact from remote node.
+func (db *nodeDB) lastPong(id NodeID) time.Time {
+ return time.Unix(db.fetchInt64(makeKey(id, nodeDBDiscoverPong)), 0)
}
-// updateLastBond updates the last time we successfully bound to a remote node.
-func (db *nodeDB) updateLastBond(id NodeID, instance time.Time) error {
- return db.storeInt64(makeKey(id, nodeDBDiscoverBond), instance.Unix())
+// updateLastPong updates the last time a remote node successfully contacted.
+func (db *nodeDB) updateLastPong(id NodeID, instance time.Time) error {
+ return db.storeInt64(makeKey(id, nodeDBDiscoverPong), instance.Unix())
}
// querySeeds retrieves a batch of nodes to be used as potential seed servers
diff --git a/p2p/discover/database_test.go b/p2p/discover/database_test.go
new file mode 100644
index 000000000..580b13d41
--- /dev/null
+++ b/p2p/discover/database_test.go
@@ -0,0 +1,136 @@
+package discover
+
+import (
+ "bytes"
+ "net"
+ "testing"
+ "time"
+)
+
+var nodeDBKeyTests = []struct {
+ id NodeID
+ field string
+ key []byte
+}{
+ {
+ id: NodeID{},
+ field: "version",
+ key: []byte{0x76, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e}, // field
+ },
+ {
+ id: MustHexID("0x1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439"),
+ field: ":discover",
+ key: []byte{0x6e, 0x3a, // prefix
+ 0x1d, 0xd9, 0xd6, 0x5c, 0x45, 0x52, 0xb5, 0xeb, // node id
+ 0x43, 0xd5, 0xad, 0x55, 0xa2, 0xee, 0x3f, 0x56, //
+ 0xc6, 0xcb, 0xc1, 0xc6, 0x4a, 0x5c, 0x8d, 0x65, //
+ 0x9f, 0x51, 0xfc, 0xd5, 0x1b, 0xac, 0xe2, 0x43, //
+ 0x51, 0x23, 0x2b, 0x8d, 0x78, 0x21, 0x61, 0x7d, //
+ 0x2b, 0x29, 0xb5, 0x4b, 0x81, 0xcd, 0xef, 0xb9, //
+ 0xb3, 0xe9, 0xc3, 0x7d, 0x7f, 0xd5, 0xf6, 0x32, //
+ 0x70, 0xbc, 0xc9, 0xe1, 0xa6, 0xf6, 0xa4, 0x39, //
+ 0x3a, 0x64, 0x69, 0x73, 0x63, 0x6f, 0x76, 0x65, 0x72, // field
+ },
+ },
+}
+
+func TestNodeDBKeys(t *testing.T) {
+ for i, tt := range nodeDBKeyTests {
+ if key := makeKey(tt.id, tt.field); !bytes.Equal(key, tt.key) {
+ t.Errorf("make test %d: key mismatch: have 0x%x, want 0x%x", i, key, tt.key)
+ }
+ id, field := splitKey(tt.key)
+ if !bytes.Equal(id[:], tt.id[:]) {
+ t.Errorf("split test %d: id mismatch: have 0x%x, want 0x%x", i, id, tt.id)
+ }
+ if field != tt.field {
+ t.Errorf("split test %d: field mismatch: have 0x%x, want 0x%x", i, field, tt.field)
+ }
+ }
+}
+
+var nodeDBInt64Tests = []struct {
+ key []byte
+ value int64
+}{
+ {key: []byte{0x01}, value: 1},
+ {key: []byte{0x02}, value: 2},
+ {key: []byte{0x03}, value: 3},
+}
+
+func TestNodeDBInt64(t *testing.T) {
+ db, _ := newNodeDB("")
+
+ tests := nodeDBInt64Tests
+ for i := 0; i < len(tests); i++ {
+ // Insert the next value
+ if err := db.storeInt64(tests[i].key, tests[i].value); err != nil {
+ t.Errorf("test %d: failed to store value: %v", i, err)
+ }
+ // Check all existing and non existing values
+ for j := 0; j < len(tests); j++ {
+ num := db.fetchInt64(tests[j].key)
+ switch {
+ case j <= i && num != tests[j].value:
+ t.Errorf("test %d, item %d: value mismatch: have %v, want %v", i, j, num, tests[j].value)
+ case j > i && num != 0:
+ t.Errorf("test %d, item %d: value mismatch: have %v, want %v", i, j, num, 0)
+ }
+ }
+ }
+}
+
+func TestNodeDBFetchStore(t *testing.T) {
+ node := &Node{
+ ID: MustHexID("0x1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439"),
+ IP: net.IP([]byte{192, 168, 0, 1}),
+ DiscPort: 31313,
+ TCPPort: 30303,
+ }
+ inst := time.Now()
+ db, _ := newNodeDB("")
+
+ // Check fetch/store operations on the startup object
+ if stored := db.startup(); stored.Unix() != 0 {
+ t.Errorf("startup: non-existing object: %v", stored)
+ }
+ if err := db.updateStartup(inst); err != nil {
+ t.Errorf("startup: failed to update: %v", err)
+ }
+ if stored := db.startup(); stored.Unix() != inst.Unix() {
+ t.Errorf("startup: value mismatch: have %v, want %v", stored, inst)
+ }
+ // Check fetch/store operations on a node ping object
+ if stored := db.lastPing(node.ID); stored.Unix() != 0 {
+ t.Errorf("ping: non-existing object: %v", stored)
+ }
+ if err := db.updateLastPing(node.ID, inst); err != nil {
+ t.Errorf("ping: failed to update: %v", err)
+ }
+ if stored := db.lastPing(node.ID); stored.Unix() != inst.Unix() {
+ t.Errorf("ping: value mismatch: have %v, want %v", stored, inst)
+ }
+ // Check fetch/store operations on a node pong object
+ if stored := db.lastPong(node.ID); stored.Unix() != 0 {
+ t.Errorf("pong: non-existing object: %v", stored)
+ }
+ if err := db.updateLastPong(node.ID, inst); err != nil {
+ t.Errorf("pong: failed to update: %v", err)
+ }
+ if stored := db.lastPong(node.ID); stored.Unix() != inst.Unix() {
+ t.Errorf("pong: value mismatch: have %v, want %v", stored, inst)
+ }
+ // Check fetch/store operations on an actual node object
+ if stored := db.node(node.ID); stored != nil {
+ t.Errorf("node: non-existing object: %v", stored)
+ }
+ if err := db.updateNode(node); err != nil {
+ t.Errorf("node: failed to update: %v", err)
+ }
+ if stored := db.node(node.ID); stored == nil {
+ t.Errorf("node: not found")
+ } else if !bytes.Equal(stored.ID[:], node.ID[:]) || !bytes.Equal(stored.IP, node.IP) ||
+ stored.DiscPort != node.DiscPort || stored.TCPPort != node.TCPPort {
+ t.Errorf("node: data mismatch: have %v, want %v", stored, node)
+ }
+}
diff --git a/p2p/discover/table.go b/p2p/discover/table.go
index e21d9f2f4..4058c7bb7 100644
--- a/p2p/discover/table.go
+++ b/p2p/discover/table.go
@@ -307,7 +307,7 @@ func (tab *Table) pingpong(w *bondproc, pinged bool, id NodeID, addr *net.UDPAdd
TCPPort: int(tcpPort),
}
tab.db.updateNode(w.n)
- tab.db.updateLastBond(id, time.Now())
+ tab.db.updateLastPong(id, time.Now())
close(w.done)
}