Example #1
0
// Ensure the data can be deeply copied.
func TestData_Clone(t *testing.T) {
	data := meta.Data{
		Term:  10,
		Index: 20,
		Nodes: []meta.NodeInfo{
			{ID: 1, Host: "host0"},
			{ID: 2, Host: "host1"},
		},
		Databases: []meta.DatabaseInfo{
			{
				Name: "db0",
				DefaultRetentionPolicy: "default",
				RetentionPolicies: []meta.RetentionPolicyInfo{
					{
						Name:               "rp0",
						ReplicaN:           3,
						Duration:           10 * time.Second,
						ShardGroupDuration: 3 * time.Millisecond,
						ShardGroups: []meta.ShardGroupInfo{
							{
								ID:        100,
								StartTime: time.Date(2000, time.January, 1, 0, 0, 0, 0, time.UTC),
								EndTime:   time.Date(2000, time.February, 1, 0, 0, 0, 0, time.UTC),
								Shards: []meta.ShardInfo{
									{
										ID: 200,
										Owners: []meta.ShardOwner{
											{NodeID: 1},
											{NodeID: 3},
											{NodeID: 4},
										},
									},
								},
							},
						},
					},
				},
				ContinuousQueries: []meta.ContinuousQueryInfo{
					{Query: "SELECT count() FROM foo"},
				},
			},
		},
		Users: []meta.UserInfo{
			{
				Name:       "susy",
				Hash:       "ABC123",
				Admin:      true,
				Privileges: map[string]influxql.Privilege{"db0": influxql.AllPrivileges},
			},
		},
	}

	// Copy the root structure.
	other := data.Clone()

	if !reflect.DeepEqual(data.Nodes, other.Nodes) {
		t.Fatalf("unexpected cloned nodes: %#v", other.Nodes)
	} else if !reflect.DeepEqual(data.Databases, other.Databases) {
		t.Fatalf("unexpected cloned databases: %#v", other.Databases)
	} else if !reflect.DeepEqual(data.Users, other.Users) {
		t.Fatalf("unexpected cloned users: %#v", other.Users)
	}

	// Ensure that changing data in the clone does not affect the original.
	other.Databases[0].RetentionPolicies[0].ShardGroups[0].Shards[0].Owners[1].NodeID = 9
	if v := data.Databases[0].RetentionPolicies[0].ShardGroups[0].Shards[0].Owners[1].NodeID; v != 3 {
		t.Fatalf("editing clone changed original: %v", v)
	}
}