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name_test.go
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package ndn_test
import (
"encoding/json"
"strings"
"testing"
"github.com/usnistgov/ndn-dpdk/ndn"
"github.com/usnistgov/ndn-dpdk/ndn/tlv"
)
func TestNameDecode(t *testing.T) {
assert, _ := makeAR(t)
tests := []struct {
input string
bad bool
nComps int
}{
{input: "", nComps: 0},
{input: "08F0 DDDD", bad: true},
{input: "FE0001000000", bad: true},
{input: "080141 080142 080100 0801FF 800141 0800 08012E", nComps: 7},
{input: strings.Repeat("080141 ", 32) + "080142", nComps: 33},
{input: "0120(DC6D6840C6FAFB773D583CDBF465661C7B4B968E04ACD4D9015B1C4E53E59D6A)", nComps: 1},
}
for _, tt := range tests {
var name ndn.Name
e := name.UnmarshalBinary(bytesFromHex(tt.input))
if tt.bad {
assert.Error(e, tt.input)
} else if assert.NoError(e, tt.input) {
assert.Equal(tt.nComps, len(name), tt.input)
}
}
}
func TestNameSlice(t *testing.T) {
assert, _ := makeAR(t)
name := ndn.ParseName("/A/B/C/D/E")
nameEqual(assert, "/A", ndn.Name{name.Get(0)})
nameEqual(assert, "/A", ndn.Name{name.Get(-5)})
nameEqual(assert, "/C", ndn.Name{name.Get(2)})
nameEqual(assert, "/C", ndn.Name{name.Get(-3)})
nameEqual(assert, "/E", ndn.Name{name.Get(4)})
nameEqual(assert, "/E", ndn.Name{name.Get(-1)})
assert.False(name.Get(-6).Valid())
assert.False(name.Get(5).Valid())
nameEqual(assert, "/A", name.Slice(0, 1))
nameEqual(assert, "/A", name.Slice(0, -4))
nameEqual(assert, "/A", name.Slice(-5, 1))
nameEqual(assert, "/A", name.Slice(-5, -4))
nameEqual(assert, "/B", name.Slice(1, 2))
nameEqual(assert, "/B", name.Slice(1, -3))
nameEqual(assert, "/B", name.Slice(-4, 2))
nameEqual(assert, "/B", name.Slice(-4, -3))
nameEqual(assert, "/C/D", name.Slice(2, 4))
nameEqual(assert, "/C/D", name.Slice(2, -1))
nameEqual(assert, "/C/D", name.Slice(-3, 4))
nameEqual(assert, "/C/D", name.Slice(-3, -1))
nameEqual(assert, "/D/E", name.Slice(3, 5))
nameEqual(assert, "/D/E", name.Slice(3))
nameEqual(assert, "/D/E", name.Slice(-2, 5))
nameEqual(assert, "/D/E", name.Slice(-2))
assert.Len(name.Slice(2, 2), 0)
assert.Len(name.Slice(2, 0), 0)
assert.Len(name.Slice(-1, -2), 0)
assert.Len(name.Slice(-6, 1), 0)
assert.Len(name.Slice(1, 6), 0)
nameEqual(assert, "/A/B/C", name.GetPrefix(3))
nameEqual(assert, "/A/B/C", name.GetPrefix(-2))
nameEqual(assert, "/A/B/C/D/E", name.GetPrefix(5))
nameEqual(assert, "/", name.GetPrefix(0))
assert.Len(name.GetPrefix(6), 0)
assert.Panics(func() { name.Slice(0, 1, 2) })
}
func TestNameAppend(t *testing.T) {
assert, _ := makeAR(t)
name1 := ndn.ParseName("/A")
name1a := name1.Append()
name2 := name1.Append(ndn.ParseNameComponent("B"))
name3 := name1.Append(ndn.ParseNameComponent("B"), ndn.ParseNameComponent("C"))
nameEqual(assert, "/A", name1)
nameEqual(assert, "/A", name1a)
nameEqual(assert, "/A/B", name2)
nameEqual(assert, "/A/B/C", name3)
}
func TestNameCompare(t *testing.T) {
assert, _ := makeAR(t)
nameStrs := []string{
"",
"0200",
"0800",
"0800 0800",
"080141",
"080141 0800",
"080141 0800 0800",
"080141 080141",
"080142",
"08024100",
"08024101",
"0900",
}
names := make([]ndn.Name, len(nameStrs))
for i, nameStr := range nameStrs {
names[i].UnmarshalBinary(bytesFromHex(nameStr))
}
relTable := [][]int{
{+0, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{+1, +0, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2},
{+1, +2, +0, -1, -2, -2, -2, -2, -2, -2, -2, -2},
{+1, +2, +1, +0, -2, -2, -2, -2, -2, -2, -2, -2},
{+1, +2, +2, +2, +0, -1, -1, -1, -2, -2, -2, -2},
{+1, +2, +2, +2, +1, +0, -1, -2, -2, -2, -2, -2},
{+1, +2, +2, +2, +1, +1, +0, -2, -2, -2, -2, -2},
{+1, +2, +2, +2, +1, +2, +2, +0, -2, -2, -2, -2},
{+1, +2, +2, +2, +2, +2, +2, +2, +0, -2, -2, -2},
{+1, +2, +2, +2, +2, +2, +2, +2, +2, +0, -2, -2},
{+1, +2, +2, +2, +2, +2, +2, +2, +2, +2, +0, -2},
{+1, +2, +2, +2, +2, +2, +2, +2, +2, +2, +2, +0},
}
assert.Equal(len(names), len(relTable))
for i, relRow := range relTable {
assert.Equal(len(names), len(relRow), i)
for j, rel := range relRow {
cmp := names[i].Compare(names[j])
switch rel {
case -2:
assert.Less(cmp, 0, "%d=%s %d=%s", i, names[i], j, names[j])
assert.False(names[i].IsPrefixOf(names[j]), "%d=%s %d=%s", i, names[i], j, names[j])
assert.False(names[j].IsPrefixOf(names[i]), "%d=%s %d=%s", i, names[i], j, names[j])
case -1:
assert.Less(cmp, 0, "%d=%s %d=%s", i, names[i], j, names[j])
assert.True(names[i].IsPrefixOf(names[j]), "%d=%s %d=%s", i, names[i], j, names[j])
assert.False(names[j].IsPrefixOf(names[i]), "%d=%s %d=%s", i, names[i], j, names[j])
case 0:
assert.Zero(cmp, "%d=%s %d=%s", i, names[i], j, names[j])
assert.True(names[i].IsPrefixOf(names[j]), "%d=%s %d=%s", i, names[i], j, names[j])
assert.True(names[j].IsPrefixOf(names[i]), "%d=%s %d=%s", i, names[i], j, names[j])
case +1:
assert.Greater(cmp, 0, "%d=%s %d=%s", i, names[i], j, names[j])
assert.False(names[i].IsPrefixOf(names[j]), "%d=%s %d=%s", i, names[i], j, names[j])
assert.True(names[j].IsPrefixOf(names[i]), "%d=%s %d=%s", i, names[i], j, names[j])
case +2:
assert.Greater(cmp, 0, "%d=%s %d=%s", i, names[i], j, names[j])
assert.False(names[i].IsPrefixOf(names[j]), "%d=%s %d=%s", i, names[i], j, names[j])
assert.False(names[j].IsPrefixOf(names[i]), "%d=%s %d=%s", i, names[i], j, names[j])
}
}
}
}
func TestNameParse(t *testing.T) {
assert, _ := makeAR(t)
tests := []struct {
input string
output string
canonical string
}{
{input: "ndn:/", output: "0700", canonical: "/"},
{input: "/", output: "0700"},
{input: "/G", output: "0703 080147", canonical: "/8=G"},
{input: "/8=H/I", output: "0706 080148 080149", canonical: "/8=H/8=I"},
{input: "/.../..../.....", output: "0709 0800 08012E 08022E2E", canonical: "/8=.../8=..../8=....."},
{input: "/8=%00GH%ab%cD%EF", output: "0708 0806004748ABCDEF", canonical: "/8=%00GH%AB%CD%EF"},
{input: "/2=A", output: "0703 020141"},
{input: "/255=A", output: "0705 FD00FF0141"},
{input: "/65535=A", output: "0705 FDFFFF0141"},
}
for _, tt := range tests {
name := ndn.ParseName(tt.input)
wire, e := tlv.EncodeFrom(name)
assert.NoError(e, tt.input)
bytesEqual(assert, bytesFromHex(tt.output), wire, tt.input)
if tt.canonical == "" {
tt.canonical = tt.input
}
assert.Equal(tt.canonical, name.String(), tt.input)
}
}
type marshalTestStruct struct {
Name ndn.Name
I int
}
func TestNameMarshal(t *testing.T) {
assert, _ := makeAR(t)
var obj marshalTestStruct
obj.Name = ndn.ParseName("/A/B")
obj.I = 50
jsonEncoding, e := json.Marshal(obj)
if assert.NoError(e) {
assert.Equal([]byte(`{"Name":"/8=A/8=B","I":50}`), jsonEncoding)
}
var jsonDecoded marshalTestStruct
if e := json.Unmarshal(jsonEncoding, &jsonDecoded); assert.NoError(e) {
assert.True(obj.Name.Equal(jsonDecoded.Name))
assert.Equal(50, jsonDecoded.I)
}
var jsonDecoded2 marshalTestStruct
assert.Error(json.Unmarshal([]byte(`{"Name":4,"I":50}`), &jsonDecoded2))
if assert.NoError(json.Unmarshal([]byte(`{"Name":null,"I":50}`), &jsonDecoded2)) {
assert.Nil(jsonDecoded2.Name)
}
}