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package shell
import (
"testing"
"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
"github.com/chrislusf/seaweedfs/weed/storage/super_block"
)
type testcase struct {
name string
replication string
existingLocations []location
possibleLocation location
expected bool
}
func TestSatisfyReplicaPlacementComplicated(t *testing.T) {
var tests = []testcase{
{
name: "test 100 negative",
replication: "100",
existingLocations: []location{
{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
},
possibleLocation: location{"dc1", "r2", &master_pb.DataNodeInfo{Id: "dn2"}},
expected: false,
},
{
name: "test 100 positive",
replication: "100",
existingLocations: []location{
{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
},
possibleLocation: location{"dc2", "r2", &master_pb.DataNodeInfo{Id: "dn2"}},
expected: true,
},
{
name: "test 022 positive",
replication: "022",
existingLocations: []location{
{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
{"dc1", "r2", &master_pb.DataNodeInfo{Id: "dn2"}},
{"dc1", "r3", &master_pb.DataNodeInfo{Id: "dn3"}},
},
possibleLocation: location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn4"}},
expected: true,
},
{
name: "test 022 negative",
replication: "022",
existingLocations: []location{
{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
{"dc1", "r2", &master_pb.DataNodeInfo{Id: "dn2"}},
{"dc1", "r3", &master_pb.DataNodeInfo{Id: "dn3"}},
},
possibleLocation: location{"dc1", "r4", &master_pb.DataNodeInfo{Id: "dn4"}},
expected: false,
},
{
name: "test 210 moved from 200 positive",
replication: "210",
existingLocations: []location{
{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
{"dc2", "r2", &master_pb.DataNodeInfo{Id: "dn2"}},
{"dc3", "r3", &master_pb.DataNodeInfo{Id: "dn3"}},
},
possibleLocation: location{"dc1", "r4", &master_pb.DataNodeInfo{Id: "dn4"}},
expected: true,
},
{
name: "test 210 moved from 200 negative extra dc",
replication: "210",
existingLocations: []location{
{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
{"dc2", "r2", &master_pb.DataNodeInfo{Id: "dn2"}},
{"dc3", "r3", &master_pb.DataNodeInfo{Id: "dn3"}},
},
possibleLocation: location{"dc4", "r4", &master_pb.DataNodeInfo{Id: "dn4"}},
expected: false,
},
{
name: "test 210 moved from 200 negative extra data node",
replication: "210",
existingLocations: []location{
{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
{"dc2", "r2", &master_pb.DataNodeInfo{Id: "dn2"}},
{"dc3", "r3", &master_pb.DataNodeInfo{Id: "dn3"}},
},
possibleLocation: location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn4"}},
expected: false,
},
}
runTests(tests, t)
}
func TestSatisfyReplicaPlacement01x(t *testing.T) {
var tests = []testcase{
{
name: "test 011 same existing rack",
replication: "011",
existingLocations: []location{
{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn2"}},
},
possibleLocation: location{"dc1", "r2", &master_pb.DataNodeInfo{Id: "dn3"}},
expected: true,
},
{
name: "test 011 negative",
replication: "011",
existingLocations: []location{
{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn2"}},
},
possibleLocation: location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn3"}},
expected: false,
},
{
name: "test 011 different existing racks",
replication: "011",
existingLocations: []location{
{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
{"dc1", "r2", &master_pb.DataNodeInfo{Id: "dn2"}},
},
possibleLocation: location{"dc1", "r2", &master_pb.DataNodeInfo{Id: "dn3"}},
expected: true,
},
{
name: "test 011 different existing racks negative",
replication: "011",
existingLocations: []location{
{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
{"dc1", "r2", &master_pb.DataNodeInfo{Id: "dn2"}},
},
possibleLocation: location{"dc1", "r3", &master_pb.DataNodeInfo{Id: "dn3"}},
expected: false,
},
}
runTests(tests, t)
}
func TestSatisfyReplicaPlacement00x(t *testing.T) {
var tests = []testcase{
{
name: "test 001",
replication: "001",
existingLocations: []location{
{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
},
possibleLocation: location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn2"}},
expected: true,
},
{
name: "test 002 positive",
replication: "002",
existingLocations: []location{
{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn2"}},
},
possibleLocation: location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn3"}},
expected: true,
},
{
name: "test 002 negative, repeat the same node",
replication: "002",
existingLocations: []location{
{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn2"}},
},
possibleLocation: location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn2"}},
expected: false,
},
{
name: "test 002 negative, enough node already",
replication: "002",
existingLocations: []location{
{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn2"}},
{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn3"}},
},
possibleLocation: location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn4"}},
expected: false,
},
}
runTests(tests, t)
}
func runTests(tests []testcase, t *testing.T) {
for _, tt := range tests {
replicaPlacement, _ := super_block.NewReplicaPlacementFromString(tt.replication)
println("replication:", tt.replication, "expected", tt.expected, "name:", tt.name)
if satisfyReplicaPlacement(replicaPlacement, tt.existingLocations, tt.possibleLocation) != tt.expected {
t.Errorf("%s: expect %v add %v to %s %+v",
tt.name, tt.expected, tt.possibleLocation, tt.replication, tt.existingLocations)
}
}
}
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