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kv_store_test.go
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kv_store_test.go
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package main
import (
"io/ioutil"
"math/rand"
"os"
"path/filepath"
"reflect"
"testing"
)
func TestKVStoreBasic(t *testing.T) {
tempDir, err := ioutil.TempDir("", "kvstore")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(tempDir)
store, err := NewKVStore(filepath.Join(tempDir, "store1"))
if err != nil {
t.Fatal(err)
}
if data, err := store.Get(1); err != nil {
t.Error(err)
} else if data != nil {
t.Error("unexpected result", data)
}
if key, err := store.Insert([]byte("hello world!")); err != nil {
t.Fatal(err)
} else if key != 0 {
t.Fatal("unexpected key:", key)
}
val, err := store.Get(0)
if err != nil {
t.Fatal(err)
}
if string(val) != "hello world!" {
t.Error("unexpected value:", string(val))
}
if data, err := store.Get(1); err != nil {
t.Error(err)
} else if data != nil {
t.Error("unexpected result:", data)
}
if key, err := store.Insert([]byte("goodbye world!")); err != nil {
t.Fatal(err)
} else if key != 1 {
t.Fatal("unexpected key:", key)
}
val, err = store.Get(0)
if err != nil {
t.Fatal(err)
}
if string(val) != "hello world!" {
t.Error("unexpected value:", string(val))
}
val, err = store.Get(1)
if err != nil {
t.Fatal(err)
}
if string(val) != "goodbye world!" {
t.Error("unexpected value:", string(val))
}
if val, err := store.Get(2); err != nil {
t.Fatal(err)
} else if val != nil {
t.Error("unexpected result:", val)
}
store.Close()
store, err = NewKVStore(filepath.Join(tempDir, "store1"))
if err != nil {
t.Fatal(err)
}
if key, err := store.Insert([]byte("static world")); err != nil {
t.Fatal(err)
} else if key != 2 {
t.Fatal("unexpected key:", key)
}
val, err = store.Get(0)
if err != nil {
t.Fatal(err)
}
if string(val) != "hello world!" {
t.Error("unexpected value:", string(val))
}
val, err = store.Get(1)
if err != nil {
t.Fatal(err)
}
if string(val) != "goodbye world!" {
t.Error("unexpected value:", string(val))
}
val, err = store.Get(2)
if err != nil {
t.Fatal(err)
}
if string(val) != "static world" {
t.Error("unexpected value:", string(val))
}
if val, err := store.Get(3); err != nil {
t.Fatal(err)
} else if val != nil {
t.Error("unexpected result:", val)
}
}
func TestKVStoreRandom(t *testing.T) {
tempDir, err := ioutil.TempDir("", "kvstore")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(tempDir)
store, err := NewKVStore(filepath.Join(tempDir, "store1"))
if err != nil {
t.Fatal(err)
}
mapping := map[int64][]byte{}
for i := 0; i < 1000; i++ {
value := []byte{}
for j := 0; j < rand.Intn(10); j++ {
value = append(value, byte(rand.Intn(256)))
}
key, err := store.Insert(value)
if err != nil {
t.Fatal(err)
}
mapping[key] = value
if key != int64(i) {
t.Fatalf("expected key %d but got %d", i, key)
}
randKey := int64(rand.Intn(100))
expected := mapping[randKey]
actual, err := store.Get(randKey)
if err != nil {
t.Fatal(err)
}
if !reflect.DeepEqual(actual, expected) {
t.Fatalf("iter %d: key %d should give %v but got %v", i, randKey,
expected, actual)
}
}
}