Added custom cache client for much easier cache operations.

services/cache_test.go

@@ -0,0 +1,105 @@
+package services
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	"github.com/go-redis/redis/v8"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestCacheClient(t *testing.T) {
+	type cacheTest struct {
+		Value string
+	}
+	// Cache some data
+	data := cacheTest{Value: "abcdef"}
+	group := "testgroup"
+	key := "testkey"
+	err := c.Cache.
+		Set().
+		Group(group).
+		Key(key).
+		Data(data).
+		Save(context.Background())
+	require.NoError(t, err)
+
+	// Get the data
+	fromCache, err := c.Cache.
+		Get().
+		Group(group).
+		Key(key).
+		Type(new(cacheTest)).
+		Fetch(context.Background())
+	require.NoError(t, err)
+	cast, ok := fromCache.(*cacheTest)
+	require.True(t, ok)
+	assert.Equal(t, data, *cast)
+
+	// The same key with the wrong group should fail
+	_, err = c.Cache.
+		Get().
+		Key(key).
+		Type(new(cacheTest)).
+		Fetch(context.Background())
+	assert.Error(t, err)
+
+	// Flush the data
+	err = c.Cache.
+		Flush().
+		Group(group).
+		Key(key).
+		Exec(context.Background())
+	require.NoError(t, err)
+
+	// The data should be gone
+	assertFlushed := func() {
+		// The data should be gone
+		_, err = c.Cache.
+			Get().
+			Group(group).
+			Key(key).
+			Type(new(cacheTest)).
+			Fetch(context.Background())
+		assert.Equal(t, redis.Nil, err)
+	}
+	assertFlushed()
+
+	// Set with tags
+	err = c.Cache.
+		Set().
+		Group(group).
+		Key(key).
+		Data(data).
+		Tags([]string{"tag1"}).
+		Save(context.Background())
+	require.NoError(t, err)
+
+	// Flush the tag
+	err = c.Cache.
+		Flush().
+		Tags([]string{"tag1"}).
+		Exec(context.Background())
+	require.NoError(t, err)
+
+	// The data should be gone
+	assertFlushed()
+
+	// Set with expiration
+	err = c.Cache.
+		Set().
+		Group(group).
+		Key(key).
+		Data(data).
+		Expiration(time.Millisecond).
+		Save(context.Background())
+	require.NoError(t, err)
+
+	// Wait for expiration
+	time.Sleep(time.Millisecond * 2)
+
+	// The data should be gone
+	assertFlushed()
+}