Files
SugarDB/echovault/cluster_test.go
2024-05-29 23:15:27 +08:00

120 lines
3.8 KiB
Go

// Copyright 2024 Kelvin Clement Mwinuka
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package echovault
// func Test_raftApplyDeleteKey(t *testing.T) {
// nodes, err := makeCluster(5)
// if err != nil {
// t.Error(err)
// return
// }
//
// // Prepare the write data for the cluster.
// tests := []struct {
// key string
// value string
// }{
// {
// key: "key1",
// value: "value1",
// },
// {
// key: "key2",
// value: "value2",
// },
// {
// key: "key3",
// value: "value3",
// },
// }
//
// // Write all the data to the cluster leader.
// for i, test := range tests {
// node := nodes[0]
// if err := node.client.WriteArray([]resp.Value{
// resp.StringValue("SET"),
// resp.StringValue(test.key),
// resp.StringValue(test.value),
// }); err != nil {
// t.Errorf("could not write data to leader node (test %d): %v", i, err)
// }
// // Read response and make sure we received "ok" response.
// rd, _, err := node.client.ReadValue()
// if err != nil {
// t.Errorf("could not read response from leader node (test %d): %v", i, err)
// }
// if !strings.EqualFold(rd.String(), "ok") {
// t.Errorf("expected response for test %d to be \"OK\", got %s", i, rd.String())
// }
// }
//
// // Check if the data has been replicated on a quorum (majority of the cluster).
// quorum := int(math.Ceil(float64(len(nodes)/2)) + 1)
// for i, test := range tests {
// count := 0
// for j := 0; j < len(nodes); j++ {
// node := nodes[j]
// if err := node.client.WriteArray([]resp.Value{
// resp.StringValue("GET"),
// resp.StringValue(test.key),
// }); err != nil {
// t.Errorf("could not write data to follower node %d (test %d): %v", j, i, err)
// }
// rd, _, err := node.client.ReadValue()
// if err != nil {
// t.Errorf("could not read data from follower node %d (test %d): %v", j, i, err)
// }
// if rd.String() == test.value {
// count += 1 // If the expected value is found, increment the count.
// }
// }
// // Fail if count is less than quorum.
// if count < quorum {
// t.Errorf("could not find value %s at key %s in cluster quorum", test.value, test.key)
// }
// // Delete key across raft cluster.
// if err = nodes[0].server.raftApplyDeleteKey(nodes[0].server.context, test.key); err != nil {
// t.Error(err)
// }
// }
//
// <-time.After(200 * time.Millisecond) // Yield to give key deletion time to take effect across cluster.
//
// // Check if the data is absent in quorum (majority of the cluster).
// for i, test := range tests {
// count := 0
// for j := 0; j < len(nodes); j++ {
// node := nodes[j]
// if err := node.client.WriteArray([]resp.Value{
// resp.StringValue("GET"),
// resp.StringValue(test.key),
// }); err != nil {
// t.Errorf("could not write command to follower node %d (test %d): %v", j, i, err)
// }
// rd, _, err := node.client.ReadValue()
// if err != nil {
// t.Errorf("could not read data from follower node %d (test %d): %v", j, i, err)
// }
// if rd.IsNull() {
// count += 1 // If the expected value is found, increment the count.
// }
// }
// // Fail if count is less than quorum.
// if count < quorum {
// t.Errorf("found value %s at key %s in cluster quorum", test.value, test.key)
// }
// }
// }