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// Copyright (c) Faye Amacker. All rights reserved.
// Licensed under the MIT License. See LICENSE in the project root for license information.
package cbor
import (
"bytes"
"testing"
)
func TestValid1(t *testing.T) {
for _, mt := range marshalTests {
if err := Wellformed(mt.wantData); err != nil {
t.Errorf("Wellformed() returned error %v", err)
}
}
}
func TestValid2(t *testing.T) {
for _, mt := range marshalTests {
dm, _ := DecOptions{DupMapKey: DupMapKeyEnforcedAPF}.DecMode()
if err := dm.Wellformed(mt.wantData); err != nil {
t.Errorf("Wellformed() returned error %v", err)
}
}
}
func TestValidExtraneousData(t *testing.T) {
testCases := []struct {
name string
data []byte
extraneousDataNumOfBytes int
extraneousDataIndex int
}{
{"two numbers", []byte{0x00, 0x01}, 1, 1}, // 0, 1
{"bytestring and int", []byte{0x44, 0x01, 0x02, 0x03, 0x04, 0x00}, 1, 5}, // h'01020304', 0
{"int and partial array", []byte{0x00, 0x83, 0x01, 0x02}, 3, 1},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
err := Wellformed(tc.data)
if err == nil {
t.Errorf("Wellformed(0x%x) didn't return an error", tc.data)
} else {
ederr, ok := err.(*ExtraneousDataError)
if !ok {
t.Errorf("Wellformed(0x%x) error type %T, want *ExtraneousDataError", tc.data, err)
} else if ederr.numOfBytes != tc.extraneousDataNumOfBytes {
t.Errorf("Wellformed(0x%x) returned %d bytes of extraneous data, want %d", tc.data, ederr.numOfBytes, tc.extraneousDataNumOfBytes)
} else if ederr.index != tc.extraneousDataIndex {
t.Errorf("Wellformed(0x%x) returned extraneous data index %d, want %d", tc.data, ederr.index, tc.extraneousDataIndex)
}
}
})
}
}
func TestValidOnStreamingData(t *testing.T) {
var buf bytes.Buffer
for _, t := range marshalTests {
buf.Write(t.wantData)
}
d := decoder{data: buf.Bytes(), dm: defaultDecMode}
for i := 0; i < len(marshalTests); i++ {
if err := d.wellformed(true, false); err != nil {
t.Errorf("wellformed() returned error %v", err)
}
}
}
func TestDepth(t *testing.T) {
testCases := []struct {
name string
data []byte
wantDepth int
}{
{"uint", hexDecode("00"), 0}, // 0
{"int", hexDecode("20"), 0}, // -1
{"bool", hexDecode("f4"), 0}, // false
{"nil", hexDecode("f6"), 0}, // nil
{"float", hexDecode("fa47c35000"), 0}, // 100000.0
{"byte string", hexDecode("40"), 0}, // []byte{}
{"indefinite length byte string", hexDecode("5f42010243030405ff"), 0}, // []byte{1, 2, 3, 4, 5}
{"text string", hexDecode("60"), 0}, // ""
{"indefinite length text string", hexDecode("7f657374726561646d696e67ff"), 0}, // "streaming"
{"empty array", hexDecode("80"), 1}, // []
{"indefinite length empty array", hexDecode("9fff"), 1}, // []
{"array", hexDecode("98190102030405060708090a0b0c0d0e0f101112131415161718181819"), 1}, // [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25]
{"indefinite length array", hexDecode("9f0102030405060708090a0b0c0d0e0f101112131415161718181819ff"), 1}, // [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25]
{"nested array", hexDecode("8301820203820405"), 2}, // [1,[2,3],[4,5]]
{"indefinite length nested array", hexDecode("83018202039f0405ff"), 2}, // [1,[2,3],[4,5]]
{"array and map", hexDecode("826161a161626163"), 2}, // [a", {"b": "c"}]
{"indefinite length array and map", hexDecode("826161bf61626163ff"), 2}, // [a", {"b": "c"}]
{"empty map", hexDecode("a0"), 1}, // {}
{"indefinite length empty map", hexDecode("bfff"), 1}, // {}
{"map", hexDecode("a201020304"), 1}, // {1:2, 3:4}
{"nested map", hexDecode("a26161016162820203"), 2}, // {"a": 1, "b": [2, 3]}
{"indefinite length nested map", hexDecode("bf61610161629f0203ffff"), 2}, // {"a": 1, "b": [2, 3]}
{"tag", hexDecode("c074323031332d30332d32315432303a30343a30305a"), 0}, // 0("2013-03-21T20:04:00Z")
{"tagged map", hexDecode("d864a26161016162820203"), 2}, // 100({"a": 1, "b": [2, 3]})
{"tagged map and array", hexDecode("d864a26161016162d865820203"), 2}, // 100({"a": 1, "b": 101([2, 3])})
{"tagged map and array", hexDecode("d864a26161016162d865d866820203"), 3}, // 100({"a": 1, "b": 101(102([2, 3]))})
{"nested tag", hexDecode("d864d865d86674323031332d30332d32315432303a30343a30305a"), 2}, // 100(101(102("2013-03-21T20:04:00Z")))
{"32-level array", hexDecode("82018181818181818181818181818181818181818181818181818181818181818101"), 32},
{"32-level indefinite length array", hexDecode("9f018181818181818181818181818181818181818181818181818181818181818101ff"), 32},
{"32-level map", hexDecode("a1018181818181818181818181818181818181818181818181818181818181818101"), 32},
{"32-level indefinite length map", hexDecode("bf018181818181818181818181818181818181818181818181818181818181818101ff"), 32},
{"32-level tag", hexDecode("d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d86474323031332d30332d32315432303a30343a30305a"), 32}, // 100(100(...("2013-03-21T20:04:00Z")))
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
d := decoder{data: tc.data, dm: defaultDecMode}
depth, err := d.wellformedInternal(0, false)
if err != nil {
t.Errorf("wellformed(0x%x) returned error %v", tc.data, err)
}
if depth != tc.wantDepth {
t.Errorf("wellformed(0x%x) returned depth %d, want %d", tc.data, depth, tc.wantDepth)
}
})
}
}
func TestDepthError(t *testing.T) {
testCases := []struct {
name string
data []byte
opts DecOptions
wantErrorMsg string
}{
{
name: "33-level array",
data: hexDecode("82018181818181818181818181818181818181818181818181818181818181818101"),
opts: DecOptions{MaxNestedLevels: 4},
wantErrorMsg: "cbor: exceeded max nested level 4",
},
{
name: "33-level array",
data: hexDecode("82018181818181818181818181818181818181818181818181818181818181818101"),
opts: DecOptions{MaxNestedLevels: 10},
wantErrorMsg: "cbor: exceeded max nested level 10",
},
{
name: "33-level array",
data: hexDecode("8201818181818181818181818181818181818181818181818181818181818181818101"),
opts: DecOptions{},
wantErrorMsg: "cbor: exceeded max nested level 32",
},
{
name: "33-level indefinite length array",
data: hexDecode("9f01818181818181818181818181818181818181818181818181818181818181818101ff"),
opts: DecOptions{},
wantErrorMsg: "cbor: exceeded max nested level 32",
},
{
name: "33-level map",
data: hexDecode("a101818181818181818181818181818181818181818181818181818181818181818101"),
opts: DecOptions{},
wantErrorMsg: "cbor: exceeded max nested level 32",
},
{
name: "33-level indefinite length map",
data: hexDecode("bf01818181818181818181818181818181818181818181818181818181818181818101ff"),
opts: DecOptions{},
wantErrorMsg: "cbor: exceeded max nested level 32",
},
{
name: "33-level tag",
data: hexDecode("d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d864d86474323031332d30332d32315432303a30343a30305a"),
opts: DecOptions{},
wantErrorMsg: "cbor: exceeded max nested level 32",
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
dm, _ := tc.opts.decMode()
d := decoder{data: tc.data, dm: dm}
if _, err := d.wellformedInternal(0, false); err == nil {
t.Errorf("wellformed(0x%x) didn't return an error", tc.data)
} else if _, ok := err.(*MaxNestedLevelError); !ok {
t.Errorf("wellformed(0x%x) returned wrong error type %T, want (*MaxNestedLevelError)", tc.data, err)
} else if err.Error() != tc.wantErrorMsg {
t.Errorf("wellformed(0x%x) returned error %q, want error %q", tc.data, err.Error(), tc.wantErrorMsg)
}
})
}
}
func TestValidBuiltinTagTest(t *testing.T) {
testCases := []struct {
name string
data []byte
}{
{
name: "tag 0",
data: hexDecode("c074323031332d30332d32315432303a30343a30305a"),
},
{
name: "tag 1",
data: hexDecode("c11a514b67b0"),
},
{
name: "tag 2",
data: hexDecode("c249010000000000000000"),
},
{
name: "tag 3",
data: hexDecode("c349010000000000000000"),
},
{
name: "nested tag 0",
data: hexDecode("d9d9f7c074323031332d30332d32315432303a30343a30305a"),
},
{
name: "nested tag 1",
data: hexDecode("d9d9f7c11a514b67b0"),
},
{
name: "nested tag 2",
data: hexDecode("d9d9f7c249010000000000000000"),
},
{
name: "nested tag 3",
data: hexDecode("d9d9f7c349010000000000000000"),
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
d := decoder{data: tc.data, dm: defaultDecMode}
if err := d.wellformed(true, true); err != nil {
t.Errorf("wellformed(0x%x) returned error %v", tc.data, err)
}
})
}
}
func TestInvalidBuiltinTagTest(t *testing.T) {
testCases := []struct {
name string
data []byte
wantErrorMsg string
}{
{
name: "tag 0",
data: hexDecode("c01a514b67b0"),
wantErrorMsg: "cbor: tag number 0 must be followed by text string, got positive integer",
},
{
name: "tag 1",
data: hexDecode("c174323031332d30332d32315432303a30343a30305a"),
wantErrorMsg: "cbor: tag number 1 must be followed by integer or floating-point number, got UTF-8 text string",
},
{
name: "tag 2",
data: hexDecode("c269010000000000000000"),
wantErrorMsg: "cbor: tag number 2 or 3 must be followed by byte string, got UTF-8 text string",
},
{
name: "tag 3",
data: hexDecode("c300"),
wantErrorMsg: "cbor: tag number 2 or 3 must be followed by byte string, got positive integer",
},
{
name: "nested tag 0",
data: hexDecode("d9d9f7c01a514b67b0"),
wantErrorMsg: "cbor: tag number 0 must be followed by text string, got positive integer",
},
{
name: "nested tag 1",
data: hexDecode("d9d9f7c174323031332d30332d32315432303a30343a30305a"),
wantErrorMsg: "cbor: tag number 1 must be followed by integer or floating-point number, got UTF-8 text string",
},
{
name: "nested tag 2",
data: hexDecode("d9d9f7c269010000000000000000"),
wantErrorMsg: "cbor: tag number 2 or 3 must be followed by byte string, got UTF-8 text string",
},
{
name: "nested tag 3",
data: hexDecode("d9d9f7c300"),
wantErrorMsg: "cbor: tag number 2 or 3 must be followed by byte string, got positive integer",
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
d := decoder{data: tc.data, dm: defaultDecMode}
err := d.wellformed(true, true)
if err == nil {
t.Errorf("wellformed(0x%x) didn't return an error", tc.data)
} else if err.Error() != tc.wantErrorMsg {
t.Errorf("wellformed(0x%x) error %q, want %q", tc.data, err.Error(), tc.wantErrorMsg)
}
})
}
}
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