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// Copyright (c) 2014, Suryandaru Triandana <syndtr@gmail.com>
// All rights reserved.
//
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
package testutil
import (
"fmt"
"math/rand"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"github.com/syndtr/goleveldb/leveldb/errors"
"github.com/syndtr/goleveldb/leveldb/util"
)
func KeyValueTesting(rnd *rand.Rand, kv KeyValue, p DB, setup func(KeyValue) DB, teardown func(DB)) {
if rnd == nil {
rnd = NewRand()
}
if p == nil {
BeforeEach(func() {
p = setup(kv)
})
if teardown != nil {
AfterEach(func() {
teardown(p)
})
}
}
It("Should find all keys with Find", func() {
if db, ok := p.(Find); ok {
ShuffledIndex(nil, kv.Len(), 1, func(i int) {
key_, key, value := kv.IndexInexact(i)
// Using exact key.
rkey, rvalue, err := db.TestFind(key)
Expect(err).ShouldNot(HaveOccurred(), "Error for key %q", key)
Expect(rkey).Should(Equal(key), "Key")
Expect(rvalue).Should(Equal(value), "Value for key %q", key)
// Using inexact key.
rkey, rvalue, err = db.TestFind(key_)
Expect(err).ShouldNot(HaveOccurred(), "Error for key %q (%q)", key_, key)
Expect(rkey).Should(Equal(key))
Expect(rvalue).Should(Equal(value), "Value for key %q (%q)", key_, key)
})
}
})
It("Should return error if the key is not present", func() {
if db, ok := p.(Find); ok {
var key []byte
if kv.Len() > 0 {
key_, _ := kv.Index(kv.Len() - 1)
key = BytesAfter(key_)
}
rkey, _, err := db.TestFind(key)
Expect(err).Should(HaveOccurred(), "Find for key %q yield key %q", key, rkey)
Expect(err).Should(Equal(errors.ErrNotFound))
}
})
It("Should only find exact key with Get", func() {
if db, ok := p.(Get); ok {
ShuffledIndex(nil, kv.Len(), 1, func(i int) {
key_, key, value := kv.IndexInexact(i)
// Using exact key.
rvalue, err := db.TestGet(key)
Expect(err).ShouldNot(HaveOccurred(), "Error for key %q", key)
Expect(rvalue).Should(Equal(value), "Value for key %q", key)
// Using inexact key.
if len(key_) > 0 {
_, err = db.TestGet(key_)
Expect(err).Should(HaveOccurred(), "Error for key %q", key_)
Expect(err).Should(Equal(errors.ErrNotFound))
}
})
}
})
It("Should only find present key with Has", func() {
if db, ok := p.(Has); ok {
ShuffledIndex(nil, kv.Len(), 1, func(i int) {
key_, key, _ := kv.IndexInexact(i)
// Using exact key.
ret, err := db.TestHas(key)
Expect(err).ShouldNot(HaveOccurred(), "Error for key %q", key)
Expect(ret).Should(BeTrue(), "False for key %q", key)
// Using inexact key.
if len(key_) > 0 {
ret, err = db.TestHas(key_)
Expect(err).ShouldNot(HaveOccurred(), "Error for key %q", key_)
Expect(ret).ShouldNot(BeTrue(), "True for key %q", key)
}
})
}
})
TestIter := func(r *util.Range, _kv KeyValue) {
if db, ok := p.(NewIterator); ok {
iter := db.TestNewIterator(r)
Expect(iter.Error()).ShouldNot(HaveOccurred())
t := IteratorTesting{
KeyValue: _kv,
Iter: iter,
}
DoIteratorTesting(&t)
iter.Release()
}
}
It("Should iterates and seeks correctly", func(done Done) {
TestIter(nil, kv.Clone())
done <- true
}, 3.0)
RandomIndex(rnd, kv.Len(), Min(kv.Len(), 50), func(i int) {
type slice struct {
r *util.Range
start, limit int
}
key_, _, _ := kv.IndexInexact(i)
for _, x := range []slice{
{&util.Range{Start: key_, Limit: nil}, i, kv.Len()},
{&util.Range{Start: nil, Limit: key_}, 0, i},
} {
It(fmt.Sprintf("Should iterates and seeks correctly of a slice %d .. %d", x.start, x.limit), func(done Done) {
TestIter(x.r, kv.Slice(x.start, x.limit))
done <- true
}, 3.0)
}
})
RandomRange(rnd, kv.Len(), Min(kv.Len(), 50), func(start, limit int) {
It(fmt.Sprintf("Should iterates and seeks correctly of a slice %d .. %d", start, limit), func(done Done) {
r := kv.Range(start, limit)
TestIter(&r, kv.Slice(start, limit))
done <- true
}, 3.0)
})
}
func AllKeyValueTesting(rnd *rand.Rand, body, setup func(KeyValue) DB, teardown func(DB)) {
Test := func(kv *KeyValue) func() {
return func() {
var p DB
if setup != nil {
Defer("setup", func() {
p = setup(*kv)
})
}
if teardown != nil {
Defer("teardown", func() {
teardown(p)
})
}
if body != nil {
p = body(*kv)
}
KeyValueTesting(rnd, *kv, p, func(KeyValue) DB {
return p
}, nil)
}
}
Describe("with no key/value (empty)", Test(&KeyValue{}))
Describe("with empty key", Test(KeyValue_EmptyKey()))
Describe("with empty value", Test(KeyValue_EmptyValue()))
Describe("with one key/value", Test(KeyValue_OneKeyValue()))
Describe("with big value", Test(KeyValue_BigValue()))
Describe("with special key", Test(KeyValue_SpecialKey()))
Describe("with multiple key/value", Test(KeyValue_MultipleKeyValue()))
Describe("with generated key/value", Test(KeyValue_Generate(nil, 120, 1, 50, 10, 120)))
}
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