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391 lines (368 loc) · 11.4 KB
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/*
* Minio Cloud Storage, (C) 2018 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* dist
10BC8
ributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package cmd
import (
"bytes"
"context"
"reflect"
"testing"
"time"
"github.com/minio/minio/pkg/hash"
)
// Initialize cache FS objects.
func initCacheFSObjects(disk string, cacheMaxUse int) (*cacheFSObjects, error) {
return newCacheFSObjects(disk, globalCacheExpiry, cacheMaxUse)
}
// inits diskCache struct for nDisks
func initDiskCaches(drives []string, cacheMaxUse int, t *testing.T) (*diskCache, error) {
var cfs []*cacheFSObjects
for _, d := range drives {
obj, err := initCacheFSObjects(d, cacheMaxUse)
if err != nil {
return nil, err
}
cfs = append(cfs, obj)
}
return &diskCache{cfs: cfs}, nil
}
// test whether a drive being offline causes
// getCacheFS to fetch next online drive
func TestGetCacheFS(t *testing.T) {
for n := 1; n < 10; n++ {
fsDirs, err := getRandomDisks(n)
if err != nil {
t.Fatal(err)
}
d, err := initDiskCaches(fsDirs, 100, t)
if err != nil {
t.Fatal(err)
}
bucketName := "testbucket"
objectName := "testobject"
ctx := context.Background()
// find cache drive where object would be hashed
index := d.hashIndex(bucketName, objectName)
// turn off drive by setting online status to false
d.cfs[index].>
cfs, err := d.getCacheFS(ctx, bucketName, objectName)
if n == 1 && err == errDiskNotFound {
continue
}
if err != nil {
t.Fatal(err)
}
i := -1
for j, f := range d.cfs {
if f == cfs {
i = j
break
}
}
if i != (index+1)%n {
t.Fatalf("expected next cache location to be picked")
}
}
}
// test whether a drive being offline causes
// getCacheFS to fetch next online drive
func TestGetCacheFSMaxUse(t *testing.T) {
for n := 1; n < 10; n++ {
fsDirs, err := getRandomDisks(n)
if err != nil {
t.Fatal(err)
}
d, err := initDiskCaches(fsDirs, globalCacheMaxUse, t)
if err != nil {
t.Fatal(err)
}
bucketName := "testbucket"
objectName := "testobject"
ctx := context.Background()
// find cache drive where object would be hashed
index := d.hashIndex(bucketName, objectName)
// turn off drive by setting online status to false
d.cfs[index].>
cfs, err := d.getCacheFS(ctx, bucketName, objectName)
if n == 1 && err == errDiskNotFound {
continue
}
if err != nil {
t.Fatal(err)
}
i := -1
for j, f := range d.cfs {
if f == cfs {
i = j
break
}
}
if i != (index+1)%n {
t.Fatalf("expected next cache location to be picked")
}
}
}
// test wildcard patterns for excluding entries from cache
func TestCacheExclusion(t *testing.T) {
fsDirs, err := getRandomDisks(1)
if err != nil {
t.Fatal(err)
}
cconfig := CacheConfig{Expiry: 30, Drives: fsDirs}
cobjects, err := newServerCacheObjects(cconfig)
if err != nil {
t.Fatal(err)
}
cobj := cobjects.(*cacheObjects)
GlobalServiceDoneCh <- struct{}{}
testCases := []struct {
bucketName string
objectName string
excludePattern string
expectedResult bool
}{
{"testbucket", "testobjectmatch", "testbucket/testobj*", true},
{"testbucket", "testobjectnomatch", "testbucet/testobject*", false},
{"testbucket", "testobject/pref1/obj1", "*/*", true},
{"testbucket", "testobject/pref1/obj1", "*/pref1/*", true},
{"testbucket", "testobject/pref1/obj1", "testobject/*", false},
{"photos", "image1.jpg", "*.jpg", true},
{"photos", "europe/paris/seine.jpg", "seine.jpg", false},
{"photos", "europe/paris/seine.jpg", "*/seine.jpg", true},
{"phil", "z/likes/coffee", "*/likes/*", true},
{"failbucket", "no/slash/prefixes", "/failbucket/no/", false},
{"failbucket", "no/slash/prefixes", "/failbucket/no/*", false},
}
for i, testCase := range testCases {
cobj.exclude = []string{testCase.excludePattern}
if cobj.isCacheExclude(testCase.bucketName, testCase.objectName) != testCase.expectedResult {
t.Fatal("Cache exclusion test failed for case ", i)
}
}
}
// Test diskCache.
func TestDiskCache(t *testing.T) {
fsDirs, err := getRandomDisks(1)
if err != nil {
t.Fatal(err)
}
d, err := initDiskCaches(fsDirs, 100, t)
if err != nil {
t.Fatal(err)
}
cache := d.cfs[0]
ctx := context.Background()
bucketName := "testbucket"
objectName := "testobject"
content := "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
etag := "061208c10af71a30c6dcd6cf5d89f0fe"
contentType := "application/zip"
size := len(content)
httpMeta := make(map[string]string)
httpMeta["etag"] = etag
httpMeta["content-type"] = contentType
objInfo := ObjectInfo{}
objInfo.Bucket = bucketName
objInfo.Name = objectName
objInfo.Size = int64(size)
objInfo.ContentType = contentType
objInfo.ETag = etag
objInfo.UserDefined = httpMeta
var opts ObjectOptions
byteReader := bytes.NewReader([]byte(content))
hashReader, err := hash.NewReader(byteReader, int64(size), "", "", int64(size))
if err != nil {
t.Fatal(err)
}
err = cache.Put(ctx, bucketName, objectName, NewPutObjReader(hashReader, nil, nil), ObjectOptions{UserDefined: httpMeta})
if err != nil {
t.Fatal(err)
}
cachedObjInfo, err := cache.GetObjectInfo(ctx, bucketName, objectName, opts)
if err != nil {
t.Fatal(err)
}
if !cache.Exists(ctx, bucketName, objectName) {
t.Fatal("Expected object to exist on cache")
}
if cachedObjInfo.ETag != objInfo.ETag {
t.Fatal("Expected ETag to match")
}
if cachedObjInfo.Size != objInfo.Size {
t.Fatal("Size mismatch")
}
if cachedObjInfo.ContentType != objInfo.ContentType {
t.Fatal("Cached content-type does not match")
}
writer := bytes.NewBuffer(nil)
err = cache.Get(ctx, bucketName, objectName, 0, int64(size), writer, "", opts)
if err != nil {
t.Fatal(err)
}
if ccontent := writer.Bytes(); !bytes.Equal([]byte(content), ccontent) {
t.Errorf("wrong cached file content")
}
err = cache.Delete(ctx, bucketName, objectName)
if err != nil {
t.Errorf("object missing from cache")
}
online := cache.IsOnline()
if !online {
t.Errorf("expected cache drive to be online")
}
}
// Test diskCache with upper bound on max cache use.
func TestDiskCacheMaxUse(t *testing.T) {
fsDirs, err := getRandomDisks(1)
if err != nil {
t.Fatal(err)
}
d, err := initDiskCaches(fsDirs, globalCacheMaxUse, t)
if err != nil {
t.Fatal(err)
}
cache := d.cfs[0]
ctx := context.Background()
bucketName := "testbucket"
objectName := "testobject"
content := "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
etag := "061208c10af71a30c6dcd6cf5d89f0fe"
contentType := "application/zip"
size := len(content)
httpMeta := make(map[string]string)
httpMeta["etag"] = etag
httpMeta["content-type"] = contentType
objInfo := ObjectInfo{}
objInfo.Bucket = bucketName
objInfo.Name = objectName
objInfo.Size = int64(size)
objInfo.ContentType = contentType
objInfo.ETag = etag
objInfo.UserDefined = httpMeta
opts := ObjectOptions{}
byteReader := bytes.NewReader([]byte(content))
hashReader, err := hash.NewReader(byteReader, int64(size), "", "", int64(size))
if err != nil {
t.Fatal(err)
}
if !cache.diskAvailable(int64(size)) {
err = cache.Put(ctx, bucketName, objectName, NewPutObjReader(hashReader, nil, nil), ObjectOptions{UserDefined: httpMeta})
if err != errDiskFull {
t.Fatal("Cache max-use limit violated.")
}
} else {
err = cache.Put(ctx, bucketName, objectName, NewPutObjReader(hashReader, nil, nil), ObjectOptions{UserDefined: httpMeta})
if err != nil {
t.Fatal(err)
}
cachedObjInfo, err := cache.GetObjectInfo(ctx, bucketName, objectName, opts)
if err != nil {
t.Fatal(err)
}
if !cache.Exists(ctx, bucketName, objectName) {
t.Fatal("Expected object to exist on cache")
}
if cachedObjInfo.ETag != objInfo.ETag {
t.Fatal("Expected ETag to match")
}
if cachedObjInfo.Size != objInfo.Size {
t.Fatal("Size mismatch")
}
if cachedObjInfo.ContentType != objInfo.ContentType {
t.Fatal("Cached content-type does not match")
}
writer := bytes.NewBuffer(nil)
err = cache.Get(ctx, bucketName, objectName, 0, int64(size), writer, "", opts)
if err != nil {
t.Fatal(err)
}
if ccontent := writer.Bytes(); !bytes.Equal([]byte(content), ccontent) {
t.Errorf("wrong cached file content")
}
err = cache.Delete(ctx, bucketName, objectName)
if err != nil {
t.Errorf("object missing from cache")
}
online := cache.IsOnline()
if !online {
t.Errorf("expected cache drive to be online")
}
}
}
func TestIsCacheExcludeDirective(t *testing.T) {
testCases := []struct {
cacheControlOpt string
expectedResult bool
}{
{"no-cache", true},
{"no-store", true},
{"must-revalidate", true},
{"no-transform", false},
{"max-age", false},
}
for i, testCase := range testCases {
if isCacheExcludeDirective(testCase.cacheControlOpt) != testCase.expectedResult {
t.Errorf("Cache exclude directive test failed for case %d", i)
}
}
}
func TestGetCacheControlOpts(t *testing.T) {
testCases := []struct {
cacheControlHeaderVal string
expiryHeaderVal string
expectedCacheControl cacheControl
expectedErr bool
}{
{"", "", cacheControl{}, false},
{"max-age=2592000, public", "", cacheControl{maxAge: 2592000, sMaxAge: 0, minFresh: 0, expiry: time.Time{}, exclude: false}, false},
{"max-age=2592000, no-store", "", cacheControl{maxAge: 2592000, sMaxAge: 0, minFresh: 0, expiry: time.Time{}, exclude: true}, false},
{"must-revalidate, max-age=600", "", cacheControl{maxAge: 600, sMaxAge: 0, minFresh: 0, expiry: time.Time{}, exclude: true}, false},
{"s-maxAge=2500, max-age=600", "", cacheControl{maxAge: 600, sMaxAge: 2500, minFresh: 0, expiry: time.Time{}, exclude: false}, false},
{"s-maxAge=2500, max-age=600", "Wed, 21 Oct 2015 07:28:00 GMT", cacheControl{maxAge: 600, sMaxAge: 2500, minFresh: 0, expiry: time.Date(2015, time.October, 21, 07, 28, 00, 00, time.UTC), exclude: false}, false},
{"s-maxAge=2500, max-age=600s", "", cacheControl{maxAge: 600, sMaxAge: 2500, minFresh: 0, expiry: time.Time{}, exclude: false}, true},
}
var m map[string]string
for i, testCase := range testCases {
m = make(map[string]string)
m["cache-control"] = testCase.cacheControlHeaderVal
if testCase.expiryHeaderVal != "" {
m["expires"] = testCase.expiryHeaderVal
}
c, err := getCacheControlOpts(m)
if testCase.expectedErr && err == nil {
t.Errorf("expected err for case %d", i)
}
if !testCase.expectedErr && !reflect.DeepEqual(c, testCase.expectedCacheControl) {
t.Errorf("expected %v got %v for case %d", testCase.expectedCacheControl, c, i)
}
}
}
func TestFilterFromCache(t *testing.T) {
testCases := []struct {
metadata map[string]string
expectedResult bool
}{
{map[string]string{"content-type": "application/json"}, false},
{map[string]string{"cache-control": "private,no-store"}, true},
{map[string]string{"cache-control": "no-cache,must-revalidate"}, true},
{map[string]string{"cache-control": "no-transform"}, false},
{map[string]string{"cache-control": "max-age=3600"}, false},
}
for i, testCase := range testCases {
if filterFromCache(testCase.metadata) != testCase.expectedResult {
t.Errorf("Cache exclude directive test failed for case %d", i)
}
}
}
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