mirror of
https://github.com/EchoVault/SugarDB.git
synced 2025-10-05 07:56:52 +08:00
367 lines
12 KiB
Go
367 lines
12 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
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import (
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"bytes"
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"context"
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"errors"
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"fmt"
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"github.com/echovault/echovault/src/echovault"
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"github.com/echovault/echovault/src/utils"
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"github.com/tidwall/resp"
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"strconv"
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"testing"
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)
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var mockServer *echovault.EchoVault
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func init() {
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mockServer = echovault.NewEchoVault(
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echovault.WithConfig(utils.Config{
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DataDir: "",
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EvictionPolicy: utils.NoEviction,
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}),
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)
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}
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func Test_HandleSetRange(t *testing.T) {
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tests := []struct {
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preset bool
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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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{ // Test that SETRANGE on non-existent string creates new string
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preset: false,
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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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{ // Test SETRANGE with an offset that leads to a longer resulting string
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preset: true,
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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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{ // SETRANGE with negative offset prepends the string
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preset: true,
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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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{ // SETRANGE with offset that embeds new string inside the old string
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preset: true,
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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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{ // SETRANGE with offset longer than original lengths appends the string
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preset: true,
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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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{ // SETRANGE with offset on the last character replaces last character with new string
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preset: true,
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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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{ // Offset not integer
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preset: false,
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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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{ // SETRANGE target is not a string
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preset: true,
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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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{ // Command too short
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preset: false,
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command: []string{"SETRANGE", "key"},
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expectedResponse: 0,
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expectedError: errors.New(utils.WrongArgsResponse),
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},
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{ // Command too long
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preset: false,
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command: []string{"SETRANGE", "key", "offset", "value", "value1"},
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expectedResponse: 0,
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expectedError: errors.New(utils.WrongArgsResponse),
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},
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}
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for i, test := range tests {
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ctx := context.WithValue(context.Background(), "test_name", fmt.Sprintf("SETRANGE, %d", i))
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// If there's a preset step, carry it out here
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if test.preset {
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if _, err := mockServer.CreateKeyAndLock(ctx, test.key); err != nil {
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t.Error(err)
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}
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if err := mockServer.SetValue(ctx, test.key, utils.AdaptType(test.presetValue)); err != nil {
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t.Error(err)
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}
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mockServer.KeyUnlock(ctx, test.key)
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}
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res, err := handleSetRange(ctx, test.command, mockServer, nil)
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if test.expectedError != nil {
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if err.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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continue
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}
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if err != nil {
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t.Error(err)
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}
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rd := resp.NewReader(bytes.NewBuffer(res))
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rv, _, err := rd.ReadValue()
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if err != nil {
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t.Error(err)
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}
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if rv.Integer() != test.expectedResponse {
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t.Errorf("expected response \"%d\", got \"%d\"", test.expectedResponse, rv.Integer())
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}
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// Get the value from the echovault and check against the expected value
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if _, err = mockServer.KeyRLock(ctx, test.key); err != nil {
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t.Error(err)
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}
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value, ok := mockServer.GetValue(ctx, test.key).(string)
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if !ok {
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t.Error("expected string data type, got another type")
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}
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if value != test.expectedValue {
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t.Errorf("expected value \"%s\", got \"%s\"", test.expectedValue, value)
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}
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mockServer.KeyRUnlock(ctx, test.key)
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}
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}
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func Test_HandleStrLen(t *testing.T) {
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tests := []struct {
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preset bool
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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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{ // Return the correct string length for an existing string
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preset: true,
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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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{ // If the string does not exist, return 0
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preset: false,
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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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{ // Too few args
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preset: false,
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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(utils.WrongArgsResponse),
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},
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{ // Too many args
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preset: false,
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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(utils.WrongArgsResponse),
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},
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}
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for i, test := range tests {
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ctx := context.WithValue(context.Background(), "test_name", fmt.Sprintf("STRLEN, %d", i))
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if test.preset {
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_, err := mockServer.CreateKeyAndLock(ctx, test.key)
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if err != nil {
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t.Error(err)
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}
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if err := mockServer.SetValue(ctx, test.key, test.presetValue); err != nil {
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t.Error(err)
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}
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mockServer.KeyUnlock(ctx, test.key)
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}
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res, err := handleStrLen(ctx, test.command, mockServer, nil)
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if test.expectedError != nil {
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if err.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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continue
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}
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rd := resp.NewReader(bytes.NewBuffer(res))
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rv, _, err := rd.ReadValue()
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if err != nil {
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t.Error(err)
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}
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if rv.Integer() != test.expectedResponse {
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t.Errorf("expected respons \"%d\", got \"%d\"", test.expectedResponse, rv.Integer())
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}
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}
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}
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func Test_HandleSubStr(t *testing.T) {
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tests := []struct {
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preset bool
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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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{ // Return substring within the range of the string
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preset: true,
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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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{ // Return substring at the end of the string with exact end index
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preset: true,
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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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{ // Return substring at the end of the string with end index greater than length
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preset: true,
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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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{ // Return the substring at the start of the string with 0 start index
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preset: true,
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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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preset: true,
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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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preset: true,
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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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{ // Command too short
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command: []string{"SUBSTR", "key", "10"},
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expectedError: errors.New(utils.WrongArgsResponse),
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},
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{
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// Command too long
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command: []string{"SUBSTR", "key", "10", "15", "20"},
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expectedError: errors.New(utils.WrongArgsResponse),
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},
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{ // 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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{ // 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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{ // 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 i, test := range tests {
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ctx := context.WithValue(context.Background(), "test_name", fmt.Sprintf("SUBSTR, %d", i))
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if test.preset {
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if _, err := mockServer.CreateKeyAndLock(ctx, test.key); err != nil {
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t.Error(err)
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}
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if err := mockServer.SetValue(ctx, test.key, test.presetValue); err != nil {
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t.Error(err)
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}
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mockServer.KeyUnlock(ctx, test.key)
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}
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res, err := handleSubStr(ctx, test.command, mockServer, nil)
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if test.expectedError != nil {
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if err.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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continue
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}
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rd := resp.NewReader(bytes.NewBuffer(res))
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rv, _, err := rd.ReadValue()
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if err != nil {
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t.Error(err)
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}
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if rv.String() != test.expectedResponse {
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t.Errorf("expected response \"%s\", got \"%s\"", test.expectedResponse, rv.String())
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}
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}
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}
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