mirror of
https://github.com/EchoVault/SugarDB.git
synced 2025-10-31 19:32:59 +08:00
454 lines
14 KiB
Go
454 lines
14 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 str_test
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import (
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"errors"
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"github.com/echovault/echovault/echovault"
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"github.com/echovault/echovault/internal"
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"github.com/echovault/echovault/internal/config"
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"github.com/echovault/echovault/internal/constants"
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"github.com/tidwall/resp"
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"strconv"
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"strings"
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"testing"
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)
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func Test_String(t *testing.T) {
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port, err := internal.GetFreePort()
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if err != nil {
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t.Error()
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return
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}
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mockServer, err := echovault.NewEchoVault(
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echovault.WithConfig(config.Config{
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BindAddr: "localhost",
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Port: uint16(port),
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DataDir: "",
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EvictionPolicy: constants.NoEviction,
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}),
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)
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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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go func() {
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mockServer.Start()
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}()
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t.Cleanup(func() {
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mockServer.ShutDown()
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})
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t.Run("Test_HandleSetRange", func(t *testing.T) {
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t.Parallel()
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conn, err := internal.GetConnection("localhost", port)
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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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defer func() {
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_ = conn.Close()
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}()
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client := resp.NewConn(conn)
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tests := []struct {
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name string
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key string
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presetValue string
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command []string
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expectedValue string
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expectedResponse int
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expectedError error
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}{
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{
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name: "Test that SETRANGE on non-existent string creates new string",
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key: "SetRangeKey1",
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presetValue: "",
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command: []string{"SETRANGE", "SetRangeKey1", "10", "New String Value"},
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expectedValue: "New String Value",
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expectedResponse: len("New String Value"),
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expectedError: nil,
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},
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{
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name: "Test SETRANGE with an offset that leads to a longer resulting string",
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key: "SetRangeKey2",
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presetValue: "Original String Value",
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command: []string{"SETRANGE", "SetRangeKey2", "16", "Portion Replaced With This New String"},
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expectedValue: "Original String Portion Replaced With This New String",
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expectedResponse: len("Original String Portion Replaced With This New String"),
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expectedError: nil,
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},
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{
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name: "SETRANGE with negative offset prepends the string",
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key: "SetRangeKey3",
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presetValue: "This is a preset value",
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command: []string{"SETRANGE", "SetRangeKey3", "-10", "Prepended "},
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expectedValue: "Prepended This is a preset value",
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expectedResponse: len("Prepended This is a preset value"),
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expectedError: nil,
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},
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{
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name: "SETRANGE with offset that embeds new string inside the old string",
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key: "SetRangeKey4",
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presetValue: "This is a preset value",
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command: []string{"SETRANGE", "SetRangeKey4", "0", "That"},
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expectedValue: "That is a preset value",
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expectedResponse: len("That is a preset value"),
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expectedError: nil,
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},
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{
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name: "SETRANGE with offset longer than original lengths appends the string",
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key: "SetRangeKey5",
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presetValue: "This is a preset value",
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command: []string{"SETRANGE", "SetRangeKey5", "100", " Appended"},
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expectedValue: "This is a preset value Appended",
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expectedResponse: len("This is a preset value Appended"),
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expectedError: nil,
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},
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{
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name: "SETRANGE with offset on the last character replaces last character with new string",
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key: "SetRangeKey6",
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presetValue: "This is a preset value",
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command: []string{"SETRANGE", "SetRangeKey6", strconv.Itoa(len("This is a preset value") - 1), " replaced"},
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expectedValue: "This is a preset valu replaced",
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expectedResponse: len("This is a preset valu replaced"),
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expectedError: nil,
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},
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{
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name: " Offset not integer",
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command: []string{"SETRANGE", "key", "offset", "value"},
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expectedResponse: 0,
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expectedError: errors.New("offset must be an integer"),
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},
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{
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name: "SETRANGE target is not a string",
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key: "test-int",
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presetValue: "10",
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command: []string{"SETRANGE", "test-int", "10", "value"},
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expectedResponse: 0,
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expectedError: errors.New("value at key test-int is not a string"),
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},
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{
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name: "Command too short",
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command: []string{"SETRANGE", "key"},
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expectedResponse: 0,
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expectedError: errors.New(constants.WrongArgsResponse),
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},
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{
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name: "Command too long",
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command: []string{"SETRANGE", "key", "offset", "value", "value1"},
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expectedResponse: 0,
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expectedError: errors.New(constants.WrongArgsResponse),
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},
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}
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for _, test := range tests {
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t.Run(test.name, func(t *testing.T) {
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if test.presetValue != "" {
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if err = 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.presetValue),
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}); err != nil {
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t.Error(err)
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}
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res, _, err := client.ReadValue()
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if err != nil {
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t.Error(err)
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}
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if !strings.EqualFold(res.String(), "ok") {
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t.Errorf("expected preset response to be OK, got %s", res.String())
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}
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}
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command := make([]resp.Value, len(test.command))
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for i, c := range test.command {
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command[i] = resp.StringValue(c)
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}
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if err = client.WriteArray(command); err != nil {
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t.Error(err)
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}
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res, _, err := client.ReadValue()
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if err != nil {
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t.Error(err)
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}
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if test.expectedError != nil {
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if !strings.Contains(res.Error().Error(), test.expectedError.Error()) {
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t.Errorf("expected error \"%s\", got \"%s\"", test.expectedError.Error(), err.Error())
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}
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return
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}
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if res.Integer() != test.expectedResponse {
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t.Errorf("expected response \"%d\", got \"%d\"", test.expectedResponse, res.Integer())
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}
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})
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}
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})
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t.Run("Test_HandleStrLen", func(t *testing.T) {
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t.Parallel()
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conn, err := internal.GetConnection("localhost", port)
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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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defer func() {
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_ = conn.Close()
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}()
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client := resp.NewConn(conn)
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tests := []struct {
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name string
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key string
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presetValue string
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command []string
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expectedResponse int
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expectedError error
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}{
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{
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name: "Return the correct string length for an existing string",
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key: "StrLenKey1",
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presetValue: "Test String",
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command: []string{"STRLEN", "StrLenKey1"},
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expectedResponse: len("Test String"),
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expectedError: nil,
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},
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{
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name: "If the string does not exist, return 0",
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key: "StrLenKey2",
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presetValue: "",
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command: []string{"STRLEN", "StrLenKey2"},
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expectedResponse: 0,
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expectedError: nil,
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},
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{
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name: "Too few args",
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key: "StrLenKey3",
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presetValue: "",
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command: []string{"STRLEN"},
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expectedResponse: 0,
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expectedError: errors.New(constants.WrongArgsResponse),
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},
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{
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name: "Too many args",
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key: "StrLenKey4",
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presetValue: "",
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command: []string{"STRLEN", "StrLenKey4", "StrLenKey5"},
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expectedResponse: 0,
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expectedError: errors.New(constants.WrongArgsResponse),
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},
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}
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for _, test := range tests {
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t.Run(test.name, func(t *testing.T) {
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if test.presetValue != "" {
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if err = 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.presetValue),
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}); err != nil {
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t.Error(err)
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}
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res, _, err := client.ReadValue()
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if err != nil {
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t.Error(err)
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}
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if !strings.EqualFold(res.String(), "ok") {
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t.Errorf("expected preset response to be OK, got %s", res.String())
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}
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}
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command := make([]resp.Value, len(test.command))
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for i, c := range test.command {
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command[i] = resp.StringValue(c)
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}
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if err = client.WriteArray(command); err != nil {
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t.Error(err)
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}
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res, _, err := client.ReadValue()
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if err != nil {
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t.Error(err)
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}
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if test.expectedError != nil {
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if !strings.Contains(res.Error().Error(), test.expectedError.Error()) {
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t.Errorf("expected error \"%s\", got \"%s\"", test.expectedError.Error(), err.Error())
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}
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return
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}
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if res.Integer() != test.expectedResponse {
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t.Errorf("expected response \"%d\", got \"%d\"", test.expectedResponse, res.Integer())
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}
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})
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}
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})
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t.Run("Test_HandleSubStr", func(t *testing.T) {
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t.Parallel()
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conn, err := internal.GetConnection("localhost", port)
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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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defer func() {
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_ = conn.Close()
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}()
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client := resp.NewConn(conn)
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tests := []struct {
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name string
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key string
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presetValue string
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command []string
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expectedResponse string
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expectedError error
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}{
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{
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name: "Return substring within the range of the string",
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key: "SubStrKey1",
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presetValue: "Test String One",
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command: []string{"SUBSTR", "SubStrKey1", "5", "10"},
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expectedResponse: "String",
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expectedError: nil,
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},
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{
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name: "Return substring at the end of the string with exact end index",
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key: "SubStrKey2",
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presetValue: "Test String Two",
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command: []string{"SUBSTR", "SubStrKey2", "12", "14"},
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expectedResponse: "Two",
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expectedError: nil,
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},
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{
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name: "Return substring at the end of the string with end index greater than length",
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key: "SubStrKey3",
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presetValue: "Test String Three",
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command: []string{"SUBSTR", "SubStrKey3", "12", "75"},
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expectedResponse: "Three",
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expectedError: nil,
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},
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{
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name: "Return the substring at the start of the string with 0 start index",
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key: "SubStrKey4",
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presetValue: "Test String Four",
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command: []string{"SUBSTR", "SubStrKey4", "0", "3"},
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expectedResponse: "Test",
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expectedError: nil,
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},
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{
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// Return the substring with negative start index.
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// Substring should begin abs(start) from the end of the string when start is negative.
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name: "Return the substring with negative start index",
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key: "SubStrKey5",
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presetValue: "Test String Five",
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command: []string{"SUBSTR", "SubStrKey5", "-11", "10"},
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expectedResponse: "String",
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expectedError: nil,
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},
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{
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// Return reverse substring with end index smaller than start index.
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// When end index is smaller than start index, the 2 indices are reversed.
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name: "Return reverse substring with end index smaller than start index",
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key: "SubStrKey6",
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presetValue: "Test String Six",
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command: []string{"SUBSTR", "SubStrKey6", "4", "0"},
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expectedResponse: "tseT",
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expectedError: nil,
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},
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{
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name: "Command too short",
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command: []string{"SUBSTR", "key", "10"},
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expectedError: errors.New(constants.WrongArgsResponse),
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},
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{
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name: "Command too long",
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command: []string{"SUBSTR", "key", "10", "15", "20"},
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expectedError: errors.New(constants.WrongArgsResponse),
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},
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{
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name: "Start index is not an integer",
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command: []string{"SUBSTR", "key", "start", "10"},
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expectedError: errors.New("start and end indices must be integers"),
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},
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{
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name: "End index is not an integer",
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command: []string{"SUBSTR", "key", "0", "end"},
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expectedError: errors.New("start and end indices must be integers"),
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},
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{
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name: "Non-existent key",
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command: []string{"SUBSTR", "non-existent-key", "0", "10"},
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expectedError: errors.New("key non-existent-key does not exist"),
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},
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}
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for _, test := range tests {
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t.Run(test.name, func(t *testing.T) {
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if test.presetValue != "" {
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if err = 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.presetValue),
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}); err != nil {
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t.Error(err)
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}
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res, _, err := client.ReadValue()
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if err != nil {
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t.Error(err)
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}
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if !strings.EqualFold(res.String(), "ok") {
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t.Errorf("expected preset response to be OK, got %s", res.String())
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}
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}
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command := make([]resp.Value, len(test.command))
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for i, c := range test.command {
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command[i] = resp.StringValue(c)
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}
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if err = client.WriteArray(command); err != nil {
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t.Error(err)
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}
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res, _, err := client.ReadValue()
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if err != nil {
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t.Error(err)
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}
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if test.expectedError != nil {
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if !strings.Contains(res.Error().Error(), test.expectedError.Error()) {
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t.Errorf("expected error \"%s\", got \"%s\"", test.expectedError.Error(), err.Error())
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}
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return
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}
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if res.String() != test.expectedResponse {
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t.Errorf("expected response \"%s\", got \"%s\"", test.expectedResponse, res.String())
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}
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})
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}
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})
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}
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