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-rw-r--r--pkg/binary/binary_test.go265
1 files changed, 265 insertions, 0 deletions
diff --git a/pkg/binary/binary_test.go b/pkg/binary/binary_test.go
new file mode 100644
index 000000000..921a0369a
--- /dev/null
+++ b/pkg/binary/binary_test.go
@@ -0,0 +1,265 @@
+// Copyright 2018 Google 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
+// 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 binary
+
+import (
+ "bytes"
+ "encoding/binary"
+ "errors"
+ "fmt"
+ "io"
+ "reflect"
+ "testing"
+)
+
+func newInt32(i int32) *int32 {
+ return &i
+}
+
+func TestSize(t *testing.T) {
+ if got, want := Size(uint32(10)), uintptr(4); got != want {
+ t.Errorf("Got = %d, want = %d", got, want)
+ }
+}
+
+func TestPanic(t *testing.T) {
+ tests := []struct {
+ name string
+ f func([]byte, binary.ByteOrder, interface{})
+ data interface{}
+ want string
+ }{
+ {"Unmarshal int", Unmarshal, 5, "invalid type: int"},
+ {"Unmarshal []int", Unmarshal, []int{5}, "invalid type: int"},
+ {"Marshal int", func(_ []byte, bo binary.ByteOrder, d interface{}) { Marshal(nil, bo, d) }, 5, "invalid type: int"},
+ {"Marshal int[]", func(_ []byte, bo binary.ByteOrder, d interface{}) { Marshal(nil, bo, d) }, []int{5}, "invalid type: int"},
+ {"Unmarshal short buffer", Unmarshal, newInt32(5), "runtime error: index out of range"},
+ {"Unmarshal long buffer", func(_ []byte, bo binary.ByteOrder, d interface{}) { Unmarshal(make([]byte, 50), bo, d) }, newInt32(5), "buffer too long by 46 bytes"},
+ {"marshal int", func(_ []byte, bo binary.ByteOrder, d interface{}) { marshal(nil, bo, reflect.ValueOf(d)) }, 5, "invalid type: int"},
+ {"Size int", func(_ []byte, _ binary.ByteOrder, d interface{}) { Size(d) }, 5, "invalid type: int"},
+ }
+
+ for _, test := range tests {
+ t.Run(test.name, func(t *testing.T) {
+ defer func() {
+ r := recover()
+ if got := fmt.Sprint(r); got != test.want {
+ t.Errorf("Got recover() = %q, want = %q", got, test.want)
+ }
+ }()
+
+ test.f(nil, LittleEndian, test.data)
+ })
+ }
+}
+
+type inner struct {
+ Field int32
+}
+
+type outer struct {
+ Int8 int8
+ Int16 int16
+ Int32 int32
+ Int64 int64
+ Uint8 uint8
+ Uint16 uint16
+ Uint32 uint32
+ Uint64 uint64
+
+ Slice []int32
+ Array [5]int32
+ Struct inner
+}
+
+func TestMarshalUnmarshal(t *testing.T) {
+ want := outer{
+ 1, 2, 3, 4, 5, 6, 7, 8,
+ []int32{9, 10, 11},
+ [5]int32{12, 13, 14, 15, 16},
+ inner{17},
+ }
+ buf := Marshal(nil, LittleEndian, want)
+ got := outer{Slice: []int32{0, 0, 0}}
+ Unmarshal(buf, LittleEndian, &got)
+ if !reflect.DeepEqual(&got, &want) {
+ t.Errorf("Got = %#v, want = %#v", got, want)
+ }
+}
+
+type outerBenchmark struct {
+ Int8 int8
+ Int16 int16
+ Int32 int32
+ Int64 int64
+ Uint8 uint8
+ Uint16 uint16
+ Uint32 uint32
+ Uint64 uint64
+
+ Array [5]int32
+ Struct inner
+}
+
+func BenchmarkMarshalUnmarshal(b *testing.B) {
+ b.ReportAllocs()
+
+ in := outerBenchmark{
+ 1, 2, 3, 4, 5, 6, 7, 8,
+ [5]int32{9, 10, 11, 12, 13},
+ inner{14},
+ }
+ buf := make([]byte, Size(&in))
+ out := outerBenchmark{}
+
+ for i := 0; i < b.N; i++ {
+ buf := Marshal(buf[:0], LittleEndian, &in)
+ Unmarshal(buf, LittleEndian, &out)
+ }
+}
+
+func BenchmarkReadWrite(b *testing.B) {
+ b.ReportAllocs()
+
+ in := outerBenchmark{
+ 1, 2, 3, 4, 5, 6, 7, 8,
+ [5]int32{9, 10, 11, 12, 13},
+ inner{14},
+ }
+ buf := bytes.NewBuffer(make([]byte, binary.Size(&in)))
+ out := outerBenchmark{}
+
+ for i := 0; i < b.N; i++ {
+ buf.Reset()
+ if err := binary.Write(buf, LittleEndian, &in); err != nil {
+ b.Error("Write:", err)
+ }
+ if err := binary.Read(buf, LittleEndian, &out); err != nil {
+ b.Error("Read:", err)
+ }
+ }
+}
+
+type outerPadding struct {
+ _ int8
+ _ int16
+ _ int32
+ _ int64
+ _ uint8
+ _ uint16
+ _ uint32
+ _ uint64
+
+ _ []int32
+ _ [5]int32
+ _ inner
+}
+
+func TestMarshalUnmarshalPadding(t *testing.T) {
+ var want outerPadding
+ buf := Marshal(nil, LittleEndian, want)
+ var got outerPadding
+ Unmarshal(buf, LittleEndian, &got)
+ if !reflect.DeepEqual(&got, &want) {
+ t.Errorf("Got = %#v, want = %#v", got, want)
+ }
+}
+
+// Numbers with bits in every byte that distinguishable in big and little endian.
+const (
+ want16 = 64<<8 | 128
+ want32 = 16<<24 | 32<<16 | want16
+ want64 = 1<<56 | 2<<48 | 4<<40 | 8<<32 | want32
+)
+
+func TestReadWriteUint16(t *testing.T) {
+ const want = uint16(want16)
+ var buf bytes.Buffer
+ if err := WriteUint16(&buf, LittleEndian, want); err != nil {
+ t.Error("WriteUint16:", err)
+ }
+ got, err := ReadUint16(&buf, LittleEndian)
+ if err != nil {
+ t.Error("ReadUint16:", err)
+ }
+ if got != want {
+ t.Errorf("got = %d, want = %d", got, want)
+ }
+}
+
+func TestReadWriteUint32(t *testing.T) {
+ const want = uint32(want32)
+ var buf bytes.Buffer
+ if err := WriteUint32(&buf, LittleEndian, want); err != nil {
+ t.Error("WriteUint32:", err)
+ }
+ got, err := ReadUint32(&buf, LittleEndian)
+ if err != nil {
+ t.Error("ReadUint32:", err)
+ }
+ if got != want {
+ t.Errorf("got = %d, want = %d", got, want)
+ }
+}
+
+func TestReadWriteUint64(t *testing.T) {
+ const want = uint64(want64)
+ var buf bytes.Buffer
+ if err := WriteUint64(&buf, LittleEndian, want); err != nil {
+ t.Error("WriteUint64:", err)
+ }
+ got, err := ReadUint64(&buf, LittleEndian)
+ if err != nil {
+ t.Error("ReadUint64:", err)
+ }
+ if got != want {
+ t.Errorf("got = %d, want = %d", got, want)
+ }
+}
+
+type readWriter struct {
+ err error
+}
+
+func (rw *readWriter) Write([]byte) (int, error) {
+ return 0, rw.err
+}
+
+func (rw *readWriter) Read([]byte) (int, error) {
+ return 0, rw.err
+}
+
+func TestReadWriteError(t *testing.T) {
+ tests := []struct {
+ name string
+ f func(rw io.ReadWriter) error
+ }{
+ {"WriteUint16", func(rw io.ReadWriter) error { return WriteUint16(rw, LittleEndian, 0) }},
+ {"ReadUint16", func(rw io.ReadWriter) error { _, err := ReadUint16(rw, LittleEndian); return err }},
+ {"WriteUint32", func(rw io.ReadWriter) error { return WriteUint32(rw, LittleEndian, 0) }},
+ {"ReadUint32", func(rw io.ReadWriter) error { _, err := ReadUint32(rw, LittleEndian); return err }},
+ {"WriteUint64", func(rw io.ReadWriter) error { return WriteUint64(rw, LittleEndian, 0) }},
+ {"ReadUint64", func(rw io.ReadWriter) error { _, err := ReadUint64(rw, LittleEndian); return err }},
+ }
+
+ for _, test := range tests {
+ t.Run(test.name, func(t *testing.T) {
+ want := errors.New("want")
+ if got := test.f(&readWriter{want}); got != want {
+ t.Errorf("got = %v, want = %v", got, want)
+ }
+ })
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-01 16:26:44 +0000