// Ensure that a shard group can be created on a database for a given timestamp.
func TestData_CreateShardGroup(t *testing.T) {
var data meta.Data
if err := data.CreateNode("node0"); err != nil {
t.Fatal(err)
} else if err = data.CreateNode("node1"); err != nil {
t.Fatal(err)
} else if err = data.CreateDatabase("db0"); err != nil {
t.Fatal(err)
} else if err = data.CreateRetentionPolicy("db0", &meta.RetentionPolicyInfo{Name: "rp0", ReplicaN: 2, Duration: 1 * time.Hour}); err != nil {
t.Fatal(err)
}
// Create shard group.
if err := data.CreateShardGroup("db0", "rp0", time.Date(2000, time.January, 1, 0, 0, 0, 0, time.UTC)); err != nil {
t.Fatal(err)
}
// Verify the shard group was created.
if sgi, _ := data.ShardGroupByTimestamp("db0", "rp0", time.Date(2000, time.January, 1, 0, 0, 0, 0, time.UTC)); !reflect.DeepEqual(sgi, &meta.ShardGroupInfo{
ID: 1,
StartTime: time.Date(2000, time.January, 1, 0, 0, 0, 0, time.UTC),
EndTime: time.Date(2000, time.January, 1, 1, 0, 0, 0, time.UTC),
Shards: []meta.ShardInfo{
{ID: 1, OwnerIDs: []uint64{1, 2}},
},
}) {
t.Fatalf("unexpected shard group: %#v", sgi)
} else if !sgi.Shards[0].OwnedBy(1) || !sgi.Shards[0].OwnedBy(2) || sgi.Shards[0].OwnedBy(3) {
// Verify shard is correctly owned-by the node.
t.Fatalf("new shard is not owned by correct node")
}
}
func TestData_CreateNode( // Ensure a node can be created.
t *testing.T) {
var data meta.Data
if err := data.CreateNode("host0"); err != nil {
t.Fatal(err)
} else if !reflect.DeepEqual(data.Nodes, []meta.NodeInfo{{ID: 1, Host: "host0"}}) {
t.Fatalf("unexpected node: %#v", data.Nodes[0])
}
}
// Ensure a shard group can be removed by ID.
func TestData_DeleteShardGroup(t *testing.T) {
var data meta.Data
if err := data.CreateNode("node0"); err != nil {
t.Fatal(err)
} else if err := data.CreateDatabase("db0"); err != nil {
t.Fatal(err)
} else if err = data.CreateRetentionPolicy("db0", &meta.RetentionPolicyInfo{Name: "rp0", ReplicaN: 1}); err != nil {
t.Fatal(err)
} else if err := data.CreateShardGroup("db0", "rp0", time.Date(2000, time.January, 1, 0, 0, 0, 0, time.UTC)); err != nil {
t.Fatal(err)
}
if err := data.DeleteShardGroup("db0", "rp0", 1); err != nil {
t.Fatal(err)
}
if sg := data.Databases[0].RetentionPolicies[0].ShardGroups[0]; !sg.Deleted() {
t.Fatalf("shard group not correctly flagged as deleted")
}
}
// Ensure that a shard group is correctly detected as expired.
func TestData_ShardGroupExpiredDeleted(t *testing.T) {
var data meta.Data
if err := data.CreateNode("node0"); err != nil {
t.Fatal(err)
} else if err = data.CreateNode("node1"); err != nil {
t.Fatal(err)
} else if err = data.CreateDatabase("db0"); err != nil {
t.Fatal(err)
} else if err = data.CreateRetentionPolicy("db0", &meta.RetentionPolicyInfo{Name: "rp0", ReplicaN: 2, Duration: 1 * time.Hour}); err != nil {
t.Fatal(err)
}
// Create shard groups.
if err := data.CreateShardGroup("db0", "rp0", time.Date(2000, time.January, 1, 0, 0, 0, 0, time.UTC)); err != nil {
t.Fatal(err)
}
if err := data.CreateShardGroup("db0", "rp0", time.Date(2001, time.January, 1, 0, 0, 0, 0, time.UTC)); err != nil {
t.Fatal(err)
}
// Check expiration.
rp, _ := data.RetentionPolicy("db0", "rp0")
groups := rp.ExpiredShardGroups(time.Date(2001, time.January, 1, 0, 0, 0, 0, time.UTC))
if len(groups) != 1 {
t.Fatalf("wrong number of expired shard groups returned, got %d, exp 1", len(groups))
}
if groups[0].StartTime != time.Date(2000, time.January, 1, 0, 0, 0, 0, time.UTC) {
t.Fatal("wrong shard group marked as expired")
}
// Check deletion.
if err := data.DeleteShardGroup("db0", "rp0", groups[0].ID); err != nil {
t.Fatal(err)
}
groups = rp.DeletedShardGroups()
if len(groups) != 1 {
t.Fatalf("wrong number of deleted shard groups returned, got %d, exp 1", len(groups))
}
if groups[0].StartTime != time.Date(2000, time.January, 1, 0, 0, 0, 0, time.UTC) {
t.Fatal("wrong shard group marked as expired")
}
}
// Ensure a node can be removed.
func TestData_DeleteNode(t *testing.T) {
var data meta.Data
if err := data.CreateNode("host0"); err != nil {
t.Fatal(err)
} else if err = data.CreateNode("host1"); err != nil {
t.Fatal(err)
} else if err := data.CreateNode("host2"); err != nil {
t.Fatal(err)
}
if err := data.DeleteNode(1); err != nil {
t.Fatal(err)
} else if len(data.Nodes) != 2 {
t.Fatalf("unexpected node count: %d", len(data.Nodes))
} else if data.Nodes[0] != (meta.NodeInfo{ID: 2, Host: "host1"}) {
t.Fatalf("unexpected node: %#v", data.Nodes[0])
} else if data.Nodes[1] != (meta.NodeInfo{ID: 3, Host: "host2"}) {
t.Fatalf("unexpected node: %#v", data.Nodes[1])
}
}