mirror of
https://github.com/EchoVault/SugarDB.git
synced 2025-10-26 09:20:24 +08:00
125 lines
3.5 KiB
Go
125 lines
3.5 KiB
Go
// Copyright 2024 Kelvin Clement Mwinuka
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package echovault
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import (
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"github.com/tidwall/resp"
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"math"
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"strings"
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"testing"
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)
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func Test_raftApplyDeleteKey(t *testing.T) {
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nodes, err := makeCluster(5)
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if err != nil {
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t.Error(err)
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return
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}
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// Prepare the write data for the cluster
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tests := []struct {
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key string
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value string
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}{
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{
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key: "key1",
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value: "value1",
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},
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{
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key: "key2",
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value: "value2",
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},
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{
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key: "key3",
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value: "value3",
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},
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}
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// Write all the data to the cluster leader.
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for i, test := range tests {
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node := nodes[0]
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if err := node.client.WriteArray([]resp.Value{
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resp.StringValue("SET"),
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resp.StringValue(test.key),
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resp.StringValue(test.value),
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}); err != nil {
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t.Errorf("could not write data to leader node (test %d): %v", i, err)
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}
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// Read response and make sure we received "ok" response.
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rd, _, err := node.client.ReadValue()
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if err != nil {
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t.Errorf("could not read response from leader node (test %d): %v", i, err)
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}
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if !strings.EqualFold(rd.String(), "ok") {
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t.Errorf("expected response for test %d to be \"OK\", got %s", i, rd.String())
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}
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}
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// Check if the data has been replicated on a quorum (majority of the cluster).
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quorum := int(math.Ceil(float64(len(nodes)/2)) + 1)
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for i, test := range tests {
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count := 0
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for j := 0; j < len(nodes); j++ {
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node := nodes[j]
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if err := node.client.WriteArray([]resp.Value{
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resp.StringValue("GET"),
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resp.StringValue(test.key),
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}); err != nil {
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t.Errorf("could not write data to follower node %d (test %d): %v", j, i, err)
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}
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rd, _, err := node.client.ReadValue()
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if err != nil {
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t.Errorf("could not read data from follower node %d (test %d): %v", j, i, err)
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}
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if rd.String() == test.value {
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count += 1 // If the expected value is found, increment the count.
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}
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}
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// Fail if count is less than quorum.
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if count < quorum {
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t.Errorf("could not find value %s at key %s in cluster quorum", test.value, test.key)
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}
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// Delete key across raft cluster.
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if err = nodes[0].server.raftApplyDeleteKey(nodes[0].server.context, test.key); err != nil {
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t.Error(err)
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}
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}
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// Check if the data is absent in quorum (majority of the cluster).
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for i, test := range tests {
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count := 0
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for j := 0; j < len(nodes); j++ {
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node := nodes[j]
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if err := node.client.WriteArray([]resp.Value{
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resp.StringValue("GET"),
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resp.StringValue(test.key),
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}); err != nil {
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t.Errorf("could not write command to follower node %d (test %d): %v", j, i, err)
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}
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rd, _, err := node.client.ReadValue()
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if err != nil {
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t.Errorf("could not read data from follower node %d (test %d): %v", j, i, err)
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}
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if rd.IsNull() {
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count += 1 // If the expected value is found, increment the count.
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}
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}
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// Fail if count is less than quorum.
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if count < quorum {
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t.Errorf("could not find value %s at key %s in cluster quorum", test.value, test.key)
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}
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}
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}
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