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slab_test.go
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slab_test.go
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/*
* Atree - Scalable Arrays and Ordered Maps
*
* Copyright Flow Foundation
*
* 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
* distributed 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 atree
import (
"testing"
"github.com/stretchr/testify/require"
)
func TestIsRootOfAnObject(t *testing.T) {
// We just need first 2 bytes of slab data to test.
testCases := []struct {
name string
isRoot bool
data []byte
}{
{name: "array data as root", isRoot: true, data: []byte{0x00, 0x80}},
{name: "array metadata as root", isRoot: true, data: []byte{0x00, 0x81}},
{name: "map data as root", isRoot: true, data: []byte{0x00, 0x88}},
{name: "map metadata as root", isRoot: true, data: []byte{0x00, 0x89}},
{name: "array data as non-root", isRoot: false, data: []byte{0x00, 0x00}},
{name: "array metadata as non-root", isRoot: false, data: []byte{0x00, 0x01}},
{name: "map data as non-root", isRoot: false, data: []byte{0x00, 0x08}},
{name: "map metadata as non-root", isRoot: false, data: []byte{0x00, 0x09}},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
isRoot, err := IsRootOfAnObject(tc.data)
require.NoError(t, err)
require.Equal(t, tc.isRoot, isRoot)
})
}
t.Run("data too short", func(t *testing.T) {
var fatalError *FatalError
var decodingError *DecodingError
var isRoot bool
var err error
isRoot, err = IsRootOfAnObject(nil)
require.False(t, isRoot)
require.Equal(t, 1, errorCategorizationCount(err))
require.ErrorAs(t, err, &fatalError)
require.ErrorAs(t, err, &decodingError)
require.ErrorAs(t, fatalError, &decodingError)
isRoot, err = IsRootOfAnObject([]byte{})
require.False(t, isRoot)
require.Equal(t, 1, errorCategorizationCount(err))
require.ErrorAs(t, err, &fatalError)
require.ErrorAs(t, err, &decodingError)
require.ErrorAs(t, fatalError, &decodingError)
isRoot, err = IsRootOfAnObject([]byte{0x00})
require.False(t, isRoot)
require.Equal(t, 1, errorCategorizationCount(err))
require.ErrorAs(t, err, &fatalError)
require.ErrorAs(t, err, &decodingError)
require.ErrorAs(t, fatalError, &decodingError)
})
}
func TestHasPointers(t *testing.T) {
// We just need first 2 bytes of slab data to test.
testCases := []struct {
name string
hasPointers bool
data []byte
}{
{name: "array data has pointer", hasPointers: true, data: []byte{0x00, 0x40}},
{name: "array metadata has pointer", hasPointers: true, data: []byte{0x00, 0x41}},
{name: "map data has pointer", hasPointers: true, data: []byte{0x00, 0x48}},
{name: "map metadata has pointer", hasPointers: true, data: []byte{0x00, 0x49}},
{name: "array data no pointer", hasPointers: false, data: []byte{0x00, 0x00}},
{name: "array metadata no pointer", hasPointers: false, data: []byte{0x00, 0x01}},
{name: "map data no pointer", hasPointers: false, data: []byte{0x00, 0x08}},
{name: "map metadata no pointer", hasPointers: false, data: []byte{0x00, 0x09}},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
hasPointers, err := HasPointers(tc.data)
require.NoError(t, err)
require.Equal(t, tc.hasPointers, hasPointers)
})
}
t.Run("data too short", func(t *testing.T) {
var fatalError *FatalError
var decodingError *DecodingError
var hasPointers bool
var err error
hasPointers, err = HasPointers(nil)
require.False(t, hasPointers)
require.Equal(t, 1, errorCategorizationCount(err))
require.ErrorAs(t, err, &fatalError)
require.ErrorAs(t, err, &decodingError)
require.ErrorAs(t, fatalError, &decodingError)
hasPointers, err = HasPointers([]byte{})
require.False(t, hasPointers)
require.Equal(t, 1, errorCategorizationCount(err))
require.ErrorAs(t, err, &fatalError)
require.ErrorAs(t, err, &decodingError)
require.ErrorAs(t, fatalError, &decodingError)
hasPointers, err = HasPointers([]byte{0x00})
require.False(t, hasPointers)
require.Equal(t, 1, errorCategorizationCount(err))
require.ErrorAs(t, err, &fatalError)
require.ErrorAs(t, err, &decodingError)
require.ErrorAs(t, fatalError, &decodingError)
})
}
func TestHasSizeLimit(t *testing.T) {
// We just need first 2 bytes of slab data to test.
testCases := []struct {
name string
hasSizeLimit bool
data []byte
}{
{name: "array data without size limit", hasSizeLimit: false, data: []byte{0x00, 0x20}},
{name: "array metadata without size limit", hasSizeLimit: false, data: []byte{0x00, 0x21}},
{name: "map data without size limit", hasSizeLimit: false, data: []byte{0x00, 0x28}},
{name: "map metadata without size limit", hasSizeLimit: false, data: []byte{0x00, 0x29}},
{name: "array data with size limit", hasSizeLimit: true, data: []byte{0x00, 0x00}},
{name: "array metadata with size limit", hasSizeLimit: true, data: []byte{0x00, 0x01}},
{name: "map data with size limit", hasSizeLimit: true, data: []byte{0x00, 0x08}},
{name: "map metadata with size limit", hasSizeLimit: true, data: []byte{0x00, 0x09}},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
hasSizeLimit, err := HasSizeLimit(tc.data)
require.NoError(t, err)
require.Equal(t, tc.hasSizeLimit, hasSizeLimit)
})
}
t.Run("data too short", func(t *testing.T) {
var fatalError *FatalError
var decodingError *DecodingError
var hasSizeLimit bool
var err error
hasSizeLimit, err = HasSizeLimit(nil)
require.False(t, hasSizeLimit)
require.Equal(t, 1, errorCategorizationCount(err))
require.ErrorAs(t, err, &fatalError)
require.ErrorAs(t, err, &decodingError)
require.ErrorAs(t, fatalError, &decodingError)
hasSizeLimit, err = HasSizeLimit([]byte{})
require.False(t, hasSizeLimit)
require.Equal(t, 1, errorCategorizationCount(err))
require.ErrorAs(t, err, &fatalError)
require.ErrorAs(t, err, &decodingError)
require.ErrorAs(t, fatalError, &decodingError)
hasSizeLimit, err = HasSizeLimit([]byte{0x00})
require.False(t, hasSizeLimit)
require.Equal(t, 1, errorCategorizationCount(err))
require.ErrorAs(t, err, &fatalError)
require.ErrorAs(t, err, &decodingError)
require.ErrorAs(t, fatalError, &decodingError)
})
}