X-Git-Url: https://gerrit.akraino.org/r/gitweb?a=blobdiff_plain;f=src%2Ffoundation%2Fapi%2Frevel%2Fcache%2Fcache_test.go;fp=src%2Ffoundation%2Fapi%2Frevel%2Fcache%2Fcache_test.go;h=bc546170807d88ce534662e6ecbf98f3604ca9a2;hb=1d1ee6961c93781e1187d8c7faa868da6b2f01f4;hp=0000000000000000000000000000000000000000;hpb=56dd5e0f2164b37b40ac1daa188ccc618b4cbd19;p=iec.git

diff --git a/src/foundation/api/revel/cache/cache_test.go b/src/foundation/api/revel/cache/cache_test.go
new file mode 100644
index 0000000..bc54617
--- /dev/null
+++ b/src/foundation/api/revel/cache/cache_test.go
@@ -0,0 +1,253 @@
+// Copyright (c) 2012-2016 The Revel Framework Authors, All rights reserved.
+// Revel Framework source code and usage is governed by a MIT style
+// license that can be found in the LICENSE file.
+
+package cache
+
+import (
+	"math"
+	"testing"
+	"time"
+)
+
+// Tests against a generic Cache interface.
+// They should pass for all implementations.
+type cacheFactory func(*testing.T, time.Duration) Cache
+
+// Test typical cache interactions
+func typicalGetSet(t *testing.T, newCache cacheFactory) {
+	var err error
+	cache := newCache(t, time.Hour)
+
+	value := "foo"
+	if err = cache.Set("value", value, DefaultExpiryTime); err != nil {
+		t.Errorf("Error setting a value: %s", err)
+	}
+
+	value = ""
+	err = cache.Get("value", &value)
+	if err != nil {
+		t.Errorf("Error getting a value: %s", err)
+	}
+	if value != "foo" {
+		t.Errorf("Expected to get foo back, got %s", value)
+	}
+}
+
+// Test the increment-decrement cases
+func incrDecr(t *testing.T, newCache cacheFactory) {
+	var err error
+	cache := newCache(t, time.Hour)
+
+	// Normal increment / decrement operation.
+	if err = cache.Set("int", 10, ForEverNeverExpiry); err != nil {
+		t.Errorf("Error setting int: %s", err)
+	}
+	time.Sleep(time.Second)
+	newValue, err := cache.Increment("int", 50)
+	if err != nil {
+		t.Errorf("Error incrementing int: %s", err)
+	}
+	if newValue != 60 {
+		t.Errorf("Expected 60, was %d", newValue)
+	}
+
+	if newValue, err = cache.Decrement("int", 50); err != nil {
+		t.Errorf("Error decrementing: %s", err)
+	}
+	if newValue != 10 {
+		t.Errorf("Expected 10, was %d", newValue)
+	}
+
+	// Increment wraparound
+	newValue, err = cache.Increment("int", math.MaxUint64-5)
+	if err != nil {
+		t.Errorf("Error wrapping around: %s", err)
+	}
+	if newValue != 4 {
+		t.Errorf("Expected wraparound 4, got %d", newValue)
+	}
+
+	// Decrement capped at 0
+	newValue, err = cache.Decrement("int", 25)
+	if err != nil {
+		t.Errorf("Error decrementing below 0: %s", err)
+	}
+	if newValue != 0 {
+		t.Errorf("Expected capped at 0, got %d", newValue)
+	}
+}
+
+func expiration(t *testing.T, newCache cacheFactory) {
+	// memcached does not support expiration times less than 1 second.
+	var err error
+	cache := newCache(t, time.Second)
+	// Test Set w/ DefaultExpiryTime
+	value := 10
+	if err = cache.Set("int", value, DefaultExpiryTime); err != nil {
+		t.Errorf("Set failed: %s", err)
+	}
+	time.Sleep(2 * time.Second)
+	if err = cache.Get("int", &value); err != ErrCacheMiss {
+		t.Errorf("Expected CacheMiss, but got: %s", err)
+	}
+
+	// Test Set w/ short time
+	if err = cache.Set("int", value, time.Second); err != nil {
+		t.Errorf("Set failed: %s", err)
+	}
+	time.Sleep(2 * time.Second)
+	if err = cache.Get("int", &value); err != ErrCacheMiss {
+		t.Errorf("Expected CacheMiss, but got: %s", err)
+	}
+
+	// Test Set w/ longer time.
+	if err = cache.Set("int", value, time.Hour); err != nil {
+		t.Errorf("Set failed: %s", err)
+	}
+	time.Sleep(2 * time.Second)
+	if err = cache.Get("int", &value); err != nil {
+		t.Errorf("Expected to get the value, but got: %s", err)
+	}
+
+	// Test Set w/ forever.
+	if err = cache.Set("int", value, ForEverNeverExpiry); err != nil {
+		t.Errorf("Set failed: %s", err)
+	}
+	time.Sleep(2 * time.Second)
+	if err = cache.Get("int", &value); err != nil {
+		t.Errorf("Expected to get the value, but got: %s", err)
+	}
+}
+
+func emptyCache(t *testing.T, newCache cacheFactory) {
+	var err error
+	cache := newCache(t, time.Hour)
+
+	err = cache.Get("notexist", 0)
+	if err == nil {
+		t.Errorf("Error expected for non-existent key")
+	}
+	if err != ErrCacheMiss {
+		t.Errorf("Expected ErrCacheMiss for non-existent key: %s", err)
+	}
+
+	err = cache.Delete("notexist")
+	if err != ErrCacheMiss {
+		t.Errorf("Expected ErrCacheMiss for non-existent key: %s", err)
+	}
+
+	_, err = cache.Increment("notexist", 1)
+	if err != ErrCacheMiss {
+		t.Errorf("Expected cache miss incrementing non-existent key: %s", err)
+	}
+
+	_, err = cache.Decrement("notexist", 1)
+	if err != ErrCacheMiss {
+		t.Errorf("Expected cache miss decrementing non-existent key: %s", err)
+	}
+}
+
+func testReplace(t *testing.T, newCache cacheFactory) {
+	var err error
+	cache := newCache(t, time.Hour)
+
+	// Replace in an empty cache.
+	if err = cache.Replace("notexist", 1, ForEverNeverExpiry); err != ErrNotStored {
+		t.Errorf("Replace in empty cache: expected ErrNotStored, got: %s", err)
+	}
+
+	// Set a value of 1, and replace it with 2
+	if err = cache.Set("int", 1, time.Second); err != nil {
+		t.Errorf("Unexpected error: %s", err)
+	}
+
+	if err = cache.Replace("int", 2, time.Second); err != nil {
+		t.Errorf("Unexpected error: %s", err)
+	}
+	var i int
+	if err = cache.Get("int", &i); err != nil {
+		t.Errorf("Unexpected error getting a replaced item: %s", err)
+	}
+	if i != 2 {
+		t.Errorf("Expected 2, got %d", i)
+	}
+
+	// Wait for it to expire and replace with 3 (unsuccessfully).
+	time.Sleep(2 * time.Second)
+	if err = cache.Replace("int", 3, time.Second); err != ErrNotStored {
+		t.Errorf("Expected ErrNotStored, got: %s", err)
+	}
+	if err = cache.Get("int", &i); err != ErrCacheMiss {
+		t.Errorf("Expected cache miss, got: %s", err)
+	}
+}
+
+func testAdd(t *testing.T, newCache cacheFactory) {
+	var err error
+	cache := newCache(t, time.Hour)
+	// Add to an empty cache.
+	if err = cache.Add("int", 1, time.Second*3); err != nil {
+		t.Errorf("Unexpected error adding to empty cache: %s", err)
+	}
+
+	// Try to add again. (fail)
+	if err = cache.Add("int", 2, time.Second*3); err != nil {
+		if err != ErrNotStored {
+			t.Errorf("Expected ErrNotStored adding dupe to cache: %s", err)
+		}
+	}
+
+	// Wait for it to expire, and add again.
+	time.Sleep(8 * time.Second)
+	if err = cache.Add("int", 3, time.Second*5); err != nil {
+		t.Errorf("Unexpected error adding to cache: %s", err)
+	}
+
+	// Get and verify the value.
+	var i int
+	if err = cache.Get("int", &i); err != nil {
+		t.Errorf("Unexpected error: %s", err)
+	}
+	if i != 3 {
+		t.Errorf("Expected 3, got: %d", i)
+	}
+}
+
+func testGetMulti(t *testing.T, newCache cacheFactory) {
+	cache := newCache(t, time.Hour)
+
+	m := map[string]interface{}{
+		"str": "foo",
+		"num": 42,
+		"foo": struct{ Bar string }{"baz"},
+	}
+
+	var keys []string
+	for key, value := range m {
+		keys = append(keys, key)
+		if err := cache.Set(key, value, time.Second*30); err != nil {
+			t.Errorf("Error setting a value: %s", err)
+		}
+	}
+
+	g, err := cache.GetMulti(keys...)
+	if err != nil {
+		t.Errorf("Error in get-multi: %s", err)
+	}
+
+	var str string
+	if err = g.Get("str", &str); err != nil || str != "foo" {
+		t.Errorf("Error getting str: %s / %s", err, str)
+	}
+
+	var num int
+	if err = g.Get("num", &num); err != nil || num != 42 {
+		t.Errorf("Error getting num: %s / %v", err, num)
+	}
+
+	var foo struct{ Bar string }
+	if err = g.Get("foo", &foo); err != nil || foo.Bar != "baz" {
+		t.Errorf("Error getting foo: %s / %v", err, foo)
+	}
+}