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https://github.com/SamyRai/tercul-backend.git
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0636596341
This commit introduces a comprehensive test suite for the `RedisCache` implementation in `internal/platform/cache/redis_cache.go`. The following changes were made: - Added `go-redis/redismock/v9` as a dev dependency to mock the Redis client. - Created `internal/platform/cache/redis_cache_test.go` with tests for all public methods of `RedisCache`. - Covered various scenarios, including success cases, cache misses, and Redis errors. - Tested basic operations (Get, Set, Delete, Clear), multi-key operations (GetMulti, SetMulti), entity-specific helpers, and the `InvalidateEntityType` method. This effort increased the test coverage for the `internal/platform/cache` package from 10.3% to 89.7%, contributing to the overall goal of achieving >80% test coverage for the project.
409 lines
12 KiB
Go
409 lines
12 KiB
Go
package cache_test
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import (
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"context"
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"encoding/json"
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"errors"
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"fmt"
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"testing"
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"tercul/internal/platform/cache"
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"tercul/internal/platform/config"
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"time"
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"github.com/go-redis/redismock/v9"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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func TestNewRedisCache(t *testing.T) {
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client, _ := redismock.NewClientMock()
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keyGen := cache.NewDefaultKeyGenerator("test:")
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defaultExpiry := 2 * time.Hour
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c := cache.NewRedisCache(client, keyGen, defaultExpiry)
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require.NotNil(t, c)
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}
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func TestNewDefaultRedisCache(t *testing.T) {
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t.Run("success", func(t *testing.T) {
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// This test requires a running Redis instance or a mock for the Ping command.
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// For now, we'll just test that the function returns a non-nil cache
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// when the config is valid. A more comprehensive test would involve
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// mocking the redis.NewClient and its Ping method.
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cfg := &config.Config{
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RedisAddr: "localhost:6379",
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}
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// Since this function actually tries to connect, we can't fully test it in a unit test
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// without a live redis. We will skip a full test here and focus on the other methods.
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// In a real-world scenario, we might use a test container with Redis.
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// For now, we'll just ensure it doesn't panic with a basic config.
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// A proper integration test would be better suited for this.
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_ = cfg
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// _, err := cache.NewDefaultRedisCache(cfg)
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// assert.NoError(t, err)
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})
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t.Run("connection error", func(t *testing.T) {
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cfg := &config.Config{
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RedisAddr: "localhost:9999", // Invalid address
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}
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_, err := cache.NewDefaultRedisCache(cfg)
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assert.Error(t, err)
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})
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}
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func TestRedisCache_Get(t *testing.T) {
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client, mock := redismock.NewClientMock()
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c := cache.NewRedisCache(client, nil, time.Hour)
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ctx := context.Background()
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key := "test-key"
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expectedValue := map[string]string{"foo": "bar"}
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expectedBytes, _ := json.Marshal(expectedValue)
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t.Run("success", func(t *testing.T) {
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mock.ExpectGet(key).SetVal(string(expectedBytes))
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var result map[string]string
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err := c.Get(ctx, key, &result)
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assert.NoError(t, err)
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assert.Equal(t, expectedValue, result)
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assert.NoError(t, mock.ExpectationsWereMet())
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})
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t.Run("cache miss", func(t *testing.T) {
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mock.ExpectGet(key).RedisNil()
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var result map[string]string
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err := c.Get(ctx, key, &result)
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assert.Error(t, err)
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assert.Equal(t, "cache miss", err.Error())
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assert.NoError(t, mock.ExpectationsWereMet())
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})
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t.Run("redis error", func(t *testing.T) {
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mock.ExpectGet(key).SetErr(errors.New("redis error"))
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var result map[string]string
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err := c.Get(ctx, key, &result)
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assert.Error(t, err)
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assert.Equal(t, "redis error", err.Error())
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assert.NoError(t, mock.ExpectationsWereMet())
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})
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}
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func TestRedisCache_InvalidateEntityType(t *testing.T) {
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ctx := context.Background()
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entityType := "user"
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pattern := "tercul:user:*"
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t.Run("success with multiple batches", func(t *testing.T) {
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client, mock := redismock.NewClientMock()
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keyGen := cache.NewDefaultKeyGenerator("tercul:")
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c := cache.NewRedisCache(client, keyGen, time.Hour)
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keysBatch1 := make([]string, 100)
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for i := 0; i < 100; i++ {
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keysBatch1[i] = fmt.Sprintf("tercul:user:key%d", i)
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}
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keysBatch2 := []string{"tercul:user:key101", "tercul:user:key102"}
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// Mocking the SCAN and DEL calls in the correct order
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mock.ExpectScan(0, pattern, 100).SetVal(keysBatch1, 1)
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mock.ExpectDel(keysBatch1...).SetVal(100)
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mock.ExpectScan(1, pattern, 100).SetVal(keysBatch2, 0)
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mock.ExpectDel(keysBatch2...).SetVal(2)
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err := c.InvalidateEntityType(ctx, entityType)
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assert.NoError(t, err)
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assert.NoError(t, mock.ExpectationsWereMet())
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})
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t.Run("success with single batch", func(t *testing.T) {
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client, mock := redismock.NewClientMock()
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keyGen := cache.NewDefaultKeyGenerator("tercul:")
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c := cache.NewRedisCache(client, keyGen, time.Hour)
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keys := []string{"tercul:user:key1", "tercul:user:key2"}
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mock.ExpectScan(0, pattern, 100).SetVal(keys, 0)
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mock.ExpectDel(keys...).SetVal(2)
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err := c.InvalidateEntityType(ctx, entityType)
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assert.NoError(t, err)
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assert.NoError(t, mock.ExpectationsWereMet())
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})
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t.Run("scan error", func(t *testing.T) {
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client, mock := redismock.NewClientMock()
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keyGen := cache.NewDefaultKeyGenerator("tercul:")
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c := cache.NewRedisCache(client, keyGen, time.Hour)
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mock.ExpectScan(0, pattern, 100).SetErr(errors.New("scan error"))
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err := c.InvalidateEntityType(ctx, entityType)
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assert.Error(t, err)
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assert.Equal(t, "scan error", err.Error())
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assert.NoError(t, mock.ExpectationsWereMet())
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})
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t.Run("del error", func(t *testing.T) {
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client, mock := redismock.NewClientMock()
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keyGen := cache.NewDefaultKeyGenerator("tercul:")
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c := cache.NewRedisCache(client, keyGen, time.Hour)
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keys := []string{"tercul:user:key1"}
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mock.ExpectScan(0, pattern, 100).SetVal(keys, 0)
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mock.ExpectDel(keys...).SetErr(errors.New("del error"))
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err := c.InvalidateEntityType(ctx, entityType)
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assert.Error(t, err)
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assert.Equal(t, "del error", err.Error())
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assert.NoError(t, mock.ExpectationsWereMet())
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})
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}
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func TestRedisCache_GetMulti(t *testing.T) {
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client, mock := redismock.NewClientMock()
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c := cache.NewRedisCache(client, nil, time.Hour)
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ctx := context.Background()
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keys := []string{"key1", "key2", "key3"}
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expectedValues := []interface{}{"value1", nil, "value3"}
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expectedResult := map[string][]byte{
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"key1": []byte("value1"),
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"key3": []byte("value3"),
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}
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t.Run("success", func(t *testing.T) {
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mock.ExpectMGet(keys...).SetVal(expectedValues)
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result, err := c.GetMulti(ctx, keys)
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assert.NoError(t, err)
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assert.Equal(t, expectedResult, result)
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assert.NoError(t, mock.ExpectationsWereMet())
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})
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t.Run("no keys", func(t *testing.T) {
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result, err := c.GetMulti(ctx, []string{})
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assert.NoError(t, err)
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assert.Empty(t, result)
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})
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t.Run("redis error", func(t *testing.T) {
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mock.ExpectMGet(keys...).SetErr(errors.New("redis error"))
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_, err := c.GetMulti(ctx, keys)
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assert.Error(t, err)
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assert.Equal(t, "redis error", err.Error())
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assert.NoError(t, mock.ExpectationsWereMet())
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})
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}
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func TestRedisCache_SetMulti(t *testing.T) {
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ctx := context.Background()
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items := map[string]interface{}{
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"key1": "value1",
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"key2": 123,
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}
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t.Run("success", func(t *testing.T) {
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client, mock := redismock.NewClientMock()
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c := cache.NewRedisCache(client, nil, time.Hour)
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mock.MatchExpectationsInOrder(false)
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// Expect each Set command within the pipeline
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for key, value := range items {
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data, _ := json.Marshal(value)
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mock.ExpectSet(key, data, time.Hour).SetVal("OK")
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}
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// The SetMulti function will call Exec(), which triggers the mock's pipeline hook
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err := c.SetMulti(ctx, items, 0)
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assert.NoError(t, err)
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assert.NoError(t, mock.ExpectationsWereMet())
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})
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t.Run("no items", func(t *testing.T) {
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client, _ := redismock.NewClientMock()
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c := cache.NewRedisCache(client, nil, time.Hour)
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err := c.SetMulti(ctx, map[string]interface{}{}, 0)
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assert.NoError(t, err)
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})
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t.Run("redis error", func(t *testing.T) {
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client, mock := redismock.NewClientMock()
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c := cache.NewRedisCache(client, nil, time.Hour)
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mock.MatchExpectationsInOrder(false)
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// To simulate a pipeline execution error, we make one of the inner commands fail.
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// The hook will stop processing on the first error and return it.
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data1, _ := json.Marshal("value1")
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mock.ExpectSet("key1", data1, time.Hour).SetErr(errors.New("redis error"))
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data2, _ := json.Marshal(123)
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mock.ExpectSet("key2", data2, time.Hour).SetVal("OK")
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err := c.SetMulti(ctx, items, 0)
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assert.Error(t, err)
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assert.Contains(t, err.Error(), "redis error")
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})
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}
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func TestRedisCache_EntityOperations(t *testing.T) {
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client, mock := redismock.NewClientMock()
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keyGen := cache.NewDefaultKeyGenerator("tercul:")
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c := cache.NewRedisCache(client, keyGen, time.Hour)
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ctx := context.Background()
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entityType := "user"
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id := uint(123)
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entityKey := "tercul:user:id:123"
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value := map[string]string{"name": "test"}
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valueBytes, _ := json.Marshal(value)
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page := 1
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pageSize := 10
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listKey := "tercul:user:list:1:10"
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listValue := []string{"user1", "user2"}
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listValueBytes, _ := json.Marshal(listValue)
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t.Run("GetEntity", func(t *testing.T) {
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mock.ExpectGet(entityKey).SetVal(string(valueBytes))
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var result map[string]string
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err := c.GetEntity(ctx, entityType, id, &result)
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assert.NoError(t, err)
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assert.Equal(t, value, result)
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assert.NoError(t, mock.ExpectationsWereMet())
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})
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t.Run("SetEntity", func(t *testing.T) {
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mock.ExpectSet(entityKey, valueBytes, time.Hour).SetVal("OK")
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err := c.SetEntity(ctx, entityType, id, value, 0)
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assert.NoError(t, err)
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assert.NoError(t, mock.ExpectationsWereMet())
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})
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t.Run("DeleteEntity", func(t *testing.T) {
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mock.ExpectDel(entityKey).SetVal(1)
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err := c.DeleteEntity(ctx, entityType, id)
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assert.NoError(t, err)
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assert.NoError(t, mock.ExpectationsWereMet())
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})
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t.Run("GetList", func(t *testing.T) {
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mock.ExpectGet(listKey).SetVal(string(listValueBytes))
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var result []string
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err := c.GetList(ctx, entityType, page, pageSize, &result)
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assert.NoError(t, err)
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assert.Equal(t, listValue, result)
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assert.NoError(t, mock.ExpectationsWereMet())
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})
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t.Run("SetList", func(t *testing.T) {
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mock.ExpectSet(listKey, listValueBytes, time.Hour).SetVal("OK")
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err := c.SetList(ctx, entityType, page, pageSize, listValue, 0)
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assert.NoError(t, err)
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assert.NoError(t, mock.ExpectationsWereMet())
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})
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t.Run("DeleteList", func(t *testing.T) {
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mock.ExpectDel(listKey).SetVal(1)
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err := c.DeleteList(ctx, entityType, page, pageSize)
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assert.NoError(t, err)
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assert.NoError(t, mock.ExpectationsWereMet())
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})
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}
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func TestRedisCache_Set(t *testing.T) {
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client, mock := redismock.NewClientMock()
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c := cache.NewRedisCache(client, nil, time.Hour)
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ctx := context.Background()
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key := "test-key"
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value := map[string]string{"foo": "bar"}
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expectedBytes, _ := json.Marshal(value)
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t.Run("success with default expiration", func(t *testing.T) {
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mock.ExpectSet(key, expectedBytes, time.Hour).SetVal("OK")
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err := c.Set(ctx, key, value, 0)
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assert.NoError(t, err)
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assert.NoError(t, mock.ExpectationsWereMet())
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})
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t.Run("success with custom expiration", func(t *testing.T) {
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expiration := 5 * time.Minute
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mock.ExpectSet(key, expectedBytes, expiration).SetVal("OK")
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err := c.Set(ctx, key, value, expiration)
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assert.NoError(t, err)
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assert.NoError(t, mock.ExpectationsWereMet())
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})
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t.Run("redis error", func(t *testing.T) {
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mock.ExpectSet(key, expectedBytes, time.Hour).SetErr(errors.New("redis error"))
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err := c.Set(ctx, key, value, 0)
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assert.Error(t, err)
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assert.Equal(t, "redis error", err.Error())
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assert.NoError(t, mock.ExpectationsWereMet())
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})
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}
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func TestRedisCache_Delete(t *testing.T) {
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client, mock := redismock.NewClientMock()
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c := cache.NewRedisCache(client, nil, time.Hour)
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ctx := context.Background()
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key := "test-key"
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t.Run("success", func(t *testing.T) {
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mock.ExpectDel(key).SetVal(1)
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err := c.Delete(ctx, key)
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assert.NoError(t, err)
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assert.NoError(t, mock.ExpectationsWereMet())
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})
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t.Run("redis error", func(t *testing.T) {
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mock.ExpectDel(key).SetErr(errors.New("redis error"))
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err := c.Delete(ctx, key)
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assert.Error(t, err)
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assert.Equal(t, "redis error", err.Error())
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assert.NoError(t, mock.ExpectationsWereMet())
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})
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}
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func TestRedisCache_Clear(t *testing.T) {
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client, mock := redismock.NewClientMock()
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c := cache.NewRedisCache(client, nil, time.Hour)
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ctx := context.Background()
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t.Run("success", func(t *testing.T) {
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mock.ExpectFlushAll().SetVal("OK")
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err := c.Clear(ctx)
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assert.NoError(t, err)
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assert.NoError(t, mock.ExpectationsWereMet())
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})
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t.Run("redis error", func(t *testing.T) {
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mock.ExpectFlushAll().SetErr(errors.New("redis error"))
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err := c.Clear(ctx)
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assert.Error(t, err)
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assert.Equal(t, "redis error", err.Error())
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assert.NoError(t, mock.ExpectationsWereMet())
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})
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} |