156 lines
3.7 KiB
Go
156 lines
3.7 KiB
Go
// Copyright 2014 beego Author. All Rights Reserved.
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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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// nolint
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package cache
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import (
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"context"
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"errors"
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"fmt"
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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"github.com/beego/beego/v2/core/berror"
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)
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func TestWriteThoughCache_Set(t *testing.T) {
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mockDbStore := make(map[string]any)
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testCases := []struct {
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name string
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cache Cache
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storeFunc func(ctx context.Context, key string, val any) error
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key string
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value any
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wantErr error
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}{
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{
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name: "store key/value in db fail",
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cache: NewMemoryCache(),
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storeFunc: func(ctx context.Context, key string, val any) error {
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return errors.New("failed")
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},
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wantErr: berror.Wrap(errors.New("failed"), PersistCacheFailed,
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fmt.Sprintf("key: %s, val: %v", "", nil)),
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},
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{
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name: "store key/value success",
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cache: NewMemoryCache(),
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storeFunc: func(ctx context.Context, key string, val any) error {
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mockDbStore[key] = val
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return nil
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},
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key: "hello",
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value: "world",
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},
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}
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for _, tt := range testCases {
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t.Run(tt.name, func(t *testing.T) {
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w, err := NewWriteThroughCache(tt.cache, tt.storeFunc)
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if err != nil {
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assert.EqualError(t, tt.wantErr, err.Error())
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return
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}
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err = w.Set(context.Background(), tt.key, tt.value, 60*time.Second)
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if err != nil {
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assert.EqualError(t, tt.wantErr, err.Error())
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return
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}
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val, err := w.Get(context.Background(), tt.key)
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assert.Nil(t, err)
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assert.Equal(t, tt.value, val)
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vv, ok := mockDbStore[tt.key]
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assert.True(t, ok)
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assert.Equal(t, tt.value, vv)
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})
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}
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}
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func TestNewWriteThoughCache(t *testing.T) {
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underlyingCache := NewMemoryCache()
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storeFunc := func(ctx context.Context, key string, val any) error { return nil }
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type args struct {
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cache Cache
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fn func(ctx context.Context, key string, val any) error
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}
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tests := []struct {
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name string
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args args
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wantRes *WriteThroughCache
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wantErr error
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}{
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{
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name: "nil cache parameters",
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args: args{
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cache: nil,
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fn: storeFunc,
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},
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wantErr: berror.Error(InvalidInitParameters, "cache or storeFunc can not be nil"),
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},
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{
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name: "nil storeFunc parameters",
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args: args{
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cache: underlyingCache,
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fn: nil,
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},
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wantErr: berror.Error(InvalidInitParameters, "cache or storeFunc can not be nil"),
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},
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{
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name: "init write-though cache success",
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args: args{
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cache: underlyingCache,
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fn: storeFunc,
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},
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wantRes: &WriteThroughCache{
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Cache: underlyingCache,
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storeFunc: storeFunc,
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},
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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_, err := NewWriteThroughCache(tt.args.cache, tt.args.fn)
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assert.Equal(t, tt.wantErr, err)
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if err != nil {
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return
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}
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})
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}
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}
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func ExampleNewWriteThroughCache() {
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c := NewMemoryCache()
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wtc, err := NewWriteThroughCache(c, func(ctx context.Context, key string, val any) error {
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fmt.Printf("write data to somewhere key %s, val %v \n", key, val)
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return nil
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})
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if err != nil {
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panic(err)
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}
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err = wtc.Set(context.Background(),
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"/biz/user/id=1", "I am user 1", time.Minute)
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if err != nil {
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panic(err)
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}
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// Output:
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// write data to somewhere key /biz/user/id=1, val I am user 1
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}
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