go.chromium.org/luci@v0.0.0-20240309015107-7cdc2e660f33/appengine/gaemiddleware/cache_test.go (about)

     1  // Copyright 2017 The LUCI Authors.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package gaemiddleware
    16  
    17  import (
    18  	"context"
    19  	"testing"
    20  	"time"
    21  
    22  	"go.chromium.org/luci/common/clock"
    23  	"go.chromium.org/luci/common/clock/testclock"
    24  	"go.chromium.org/luci/gae/impl/memory"
    25  	"go.chromium.org/luci/server/caching"
    26  
    27  	. "github.com/smartystreets/goconvey/convey"
    28  )
    29  
    30  func TestGlobalCache(t *testing.T) {
    31  	t.Parallel()
    32  
    33  	Convey("Works", t, func() {
    34  		ctx := context.Background()
    35  		ctx, _ = testclock.UseTime(ctx, testclock.TestRecentTimeUTC)
    36  		ctx = memory.Use(ctx)
    37  		ctx = caching.WithGlobalCache(ctx, blobCacheProvider)
    38  
    39  		cache := caching.GlobalCache(ctx, "namespace")
    40  
    41  		// Cache miss.
    42  		val, err := cache.Get(ctx, "key")
    43  		So(err, ShouldEqual, caching.ErrCacheMiss)
    44  		So(val, ShouldBeNil)
    45  
    46  		So(cache.Set(ctx, "key_permanent", []byte("1"), 0), ShouldBeNil)
    47  		So(cache.Set(ctx, "key_temp", []byte("2"), time.Minute), ShouldBeNil)
    48  
    49  		// Cache hit.
    50  		val, err = cache.Get(ctx, "key_permanent")
    51  		So(err, ShouldBeNil)
    52  		So(val, ShouldResemble, []byte("1"))
    53  
    54  		val, err = cache.Get(ctx, "key_temp")
    55  		So(err, ShouldBeNil)
    56  		So(val, ShouldResemble, []byte("2"))
    57  
    58  		// Expire one item.
    59  		clock.Get(ctx).(testclock.TestClock).Add(2 * time.Minute)
    60  
    61  		val, err = cache.Get(ctx, "key_permanent")
    62  		So(err, ShouldBeNil)
    63  		So(val, ShouldResemble, []byte("1"))
    64  
    65  		// Expired!
    66  		val, err = cache.Get(ctx, "key_temp")
    67  		So(err, ShouldEqual, caching.ErrCacheMiss)
    68  		So(val, ShouldBeNil)
    69  	})
    70  }