+++ /dev/null
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package hpack
-
-import (
- "bytes"
- "encoding/hex"
- "fmt"
- "math/rand"
- "reflect"
- "strings"
- "testing"
- "time"
-)
-
-func (d *Decoder) mustAt(idx int) HeaderField {
- if hf, ok := d.at(uint64(idx)); !ok {
- panic(fmt.Sprintf("bogus index %d", idx))
- } else {
- return hf
- }
-}
-
-func TestDynamicTableAt(t *testing.T) {
- d := NewDecoder(4096, nil)
- at := d.mustAt
- if got, want := at(2), (pair(":method", "GET")); got != want {
- t.Errorf("at(2) = %v; want %v", got, want)
- }
- d.dynTab.add(pair("foo", "bar"))
- d.dynTab.add(pair("blake", "miz"))
- if got, want := at(staticTable.len()+1), (pair("blake", "miz")); got != want {
- t.Errorf("at(dyn 1) = %v; want %v", got, want)
- }
- if got, want := at(staticTable.len()+2), (pair("foo", "bar")); got != want {
- t.Errorf("at(dyn 2) = %v; want %v", got, want)
- }
- if got, want := at(3), (pair(":method", "POST")); got != want {
- t.Errorf("at(3) = %v; want %v", got, want)
- }
-}
-
-func TestDynamicTableSizeEvict(t *testing.T) {
- d := NewDecoder(4096, nil)
- if want := uint32(0); d.dynTab.size != want {
- t.Fatalf("size = %d; want %d", d.dynTab.size, want)
- }
- add := d.dynTab.add
- add(pair("blake", "eats pizza"))
- if want := uint32(15 + 32); d.dynTab.size != want {
- t.Fatalf("after pizza, size = %d; want %d", d.dynTab.size, want)
- }
- add(pair("foo", "bar"))
- if want := uint32(15 + 32 + 6 + 32); d.dynTab.size != want {
- t.Fatalf("after foo bar, size = %d; want %d", d.dynTab.size, want)
- }
- d.dynTab.setMaxSize(15 + 32 + 1 /* slop */)
- if want := uint32(6 + 32); d.dynTab.size != want {
- t.Fatalf("after setMaxSize, size = %d; want %d", d.dynTab.size, want)
- }
- if got, want := d.mustAt(staticTable.len()+1), (pair("foo", "bar")); got != want {
- t.Errorf("at(dyn 1) = %v; want %v", got, want)
- }
- add(pair("long", strings.Repeat("x", 500)))
- if want := uint32(0); d.dynTab.size != want {
- t.Fatalf("after big one, size = %d; want %d", d.dynTab.size, want)
- }
-}
-
-func TestDecoderDecode(t *testing.T) {
- tests := []struct {
- name string
- in []byte
- want []HeaderField
- wantDynTab []HeaderField // newest entry first
- }{
- // C.2.1 Literal Header Field with Indexing
- // http://http2.github.io/http2-spec/compression.html#rfc.section.C.2.1
- {"C.2.1", dehex("400a 6375 7374 6f6d 2d6b 6579 0d63 7573 746f 6d2d 6865 6164 6572"),
- []HeaderField{pair("custom-key", "custom-header")},
- []HeaderField{pair("custom-key", "custom-header")},
- },
-
- // C.2.2 Literal Header Field without Indexing
- // http://http2.github.io/http2-spec/compression.html#rfc.section.C.2.2
- {"C.2.2", dehex("040c 2f73 616d 706c 652f 7061 7468"),
- []HeaderField{pair(":path", "/sample/path")},
- []HeaderField{}},
-
- // C.2.3 Literal Header Field never Indexed
- // http://http2.github.io/http2-spec/compression.html#rfc.section.C.2.3
- {"C.2.3", dehex("1008 7061 7373 776f 7264 0673 6563 7265 74"),
- []HeaderField{{"password", "secret", true}},
- []HeaderField{}},
-
- // C.2.4 Indexed Header Field
- // http://http2.github.io/http2-spec/compression.html#rfc.section.C.2.4
- {"C.2.4", []byte("\x82"),
- []HeaderField{pair(":method", "GET")},
- []HeaderField{}},
- }
- for _, tt := range tests {
- d := NewDecoder(4096, nil)
- hf, err := d.DecodeFull(tt.in)
- if err != nil {
- t.Errorf("%s: %v", tt.name, err)
- continue
- }
- if !reflect.DeepEqual(hf, tt.want) {
- t.Errorf("%s: Got %v; want %v", tt.name, hf, tt.want)
- }
- gotDynTab := d.dynTab.reverseCopy()
- if !reflect.DeepEqual(gotDynTab, tt.wantDynTab) {
- t.Errorf("%s: dynamic table after = %v; want %v", tt.name, gotDynTab, tt.wantDynTab)
- }
- }
-}
-
-func (dt *dynamicTable) reverseCopy() (hf []HeaderField) {
- hf = make([]HeaderField, len(dt.table.ents))
- for i := range hf {
- hf[i] = dt.table.ents[len(dt.table.ents)-1-i]
- }
- return
-}
-
-type encAndWant struct {
- enc []byte
- want []HeaderField
- wantDynTab []HeaderField
- wantDynSize uint32
-}
-
-// C.3 Request Examples without Huffman Coding
-// http://http2.github.io/http2-spec/compression.html#rfc.section.C.3
-func TestDecodeC3_NoHuffman(t *testing.T) {
- testDecodeSeries(t, 4096, []encAndWant{
- {dehex("8286 8441 0f77 7777 2e65 7861 6d70 6c65 2e63 6f6d"),
- []HeaderField{
- pair(":method", "GET"),
- pair(":scheme", "http"),
- pair(":path", "/"),
- pair(":authority", "www.example.com"),
- },
- []HeaderField{
- pair(":authority", "www.example.com"),
- },
- 57,
- },
- {dehex("8286 84be 5808 6e6f 2d63 6163 6865"),
- []HeaderField{
- pair(":method", "GET"),
- pair(":scheme", "http"),
- pair(":path", "/"),
- pair(":authority", "www.example.com"),
- pair("cache-control", "no-cache"),
- },
- []HeaderField{
- pair("cache-control", "no-cache"),
- pair(":authority", "www.example.com"),
- },
- 110,
- },
- {dehex("8287 85bf 400a 6375 7374 6f6d 2d6b 6579 0c63 7573 746f 6d2d 7661 6c75 65"),
- []HeaderField{
- pair(":method", "GET"),
- pair(":scheme", "https"),
- pair(":path", "/index.html"),
- pair(":authority", "www.example.com"),
- pair("custom-key", "custom-value"),
- },
- []HeaderField{
- pair("custom-key", "custom-value"),
- pair("cache-control", "no-cache"),
- pair(":authority", "www.example.com"),
- },
- 164,
- },
- })
-}
-
-// C.4 Request Examples with Huffman Coding
-// http://http2.github.io/http2-spec/compression.html#rfc.section.C.4
-func TestDecodeC4_Huffman(t *testing.T) {
- testDecodeSeries(t, 4096, []encAndWant{
- {dehex("8286 8441 8cf1 e3c2 e5f2 3a6b a0ab 90f4 ff"),
- []HeaderField{
- pair(":method", "GET"),
- pair(":scheme", "http"),
- pair(":path", "/"),
- pair(":authority", "www.example.com"),
- },
- []HeaderField{
- pair(":authority", "www.example.com"),
- },
- 57,
- },
- {dehex("8286 84be 5886 a8eb 1064 9cbf"),
- []HeaderField{
- pair(":method", "GET"),
- pair(":scheme", "http"),
- pair(":path", "/"),
- pair(":authority", "www.example.com"),
- pair("cache-control", "no-cache"),
- },
- []HeaderField{
- pair("cache-control", "no-cache"),
- pair(":authority", "www.example.com"),
- },
- 110,
- },
- {dehex("8287 85bf 4088 25a8 49e9 5ba9 7d7f 8925 a849 e95b b8e8 b4bf"),
- []HeaderField{
- pair(":method", "GET"),
- pair(":scheme", "https"),
- pair(":path", "/index.html"),
- pair(":authority", "www.example.com"),
- pair("custom-key", "custom-value"),
- },
- []HeaderField{
- pair("custom-key", "custom-value"),
- pair("cache-control", "no-cache"),
- pair(":authority", "www.example.com"),
- },
- 164,
- },
- })
-}
-
-// http://http2.github.io/http2-spec/compression.html#rfc.section.C.5
-// "This section shows several consecutive header lists, corresponding
-// to HTTP responses, on the same connection. The HTTP/2 setting
-// parameter SETTINGS_HEADER_TABLE_SIZE is set to the value of 256
-// octets, causing some evictions to occur."
-func TestDecodeC5_ResponsesNoHuff(t *testing.T) {
- testDecodeSeries(t, 256, []encAndWant{
- {dehex(`
-4803 3330 3258 0770 7269 7661 7465 611d
-4d6f 6e2c 2032 3120 4f63 7420 3230 3133
-2032 303a 3133 3a32 3120 474d 546e 1768
-7474 7073 3a2f 2f77 7777 2e65 7861 6d70
-6c65 2e63 6f6d
-`),
- []HeaderField{
- pair(":status", "302"),
- pair("cache-control", "private"),
- pair("date", "Mon, 21 Oct 2013 20:13:21 GMT"),
- pair("location", "https://www.example.com"),
- },
- []HeaderField{
- pair("location", "https://www.example.com"),
- pair("date", "Mon, 21 Oct 2013 20:13:21 GMT"),
- pair("cache-control", "private"),
- pair(":status", "302"),
- },
- 222,
- },
- {dehex("4803 3330 37c1 c0bf"),
- []HeaderField{
- pair(":status", "307"),
- pair("cache-control", "private"),
- pair("date", "Mon, 21 Oct 2013 20:13:21 GMT"),
- pair("location", "https://www.example.com"),
- },
- []HeaderField{
- pair(":status", "307"),
- pair("location", "https://www.example.com"),
- pair("date", "Mon, 21 Oct 2013 20:13:21 GMT"),
- pair("cache-control", "private"),
- },
- 222,
- },
- {dehex(`
-88c1 611d 4d6f 6e2c 2032 3120 4f63 7420
-3230 3133 2032 303a 3133 3a32 3220 474d
-54c0 5a04 677a 6970 7738 666f 6f3d 4153
-444a 4b48 514b 425a 584f 5157 454f 5049
-5541 5851 5745 4f49 553b 206d 6178 2d61
-6765 3d33 3630 303b 2076 6572 7369 6f6e
-3d31
-`),
- []HeaderField{
- pair(":status", "200"),
- pair("cache-control", "private"),
- pair("date", "Mon, 21 Oct 2013 20:13:22 GMT"),
- pair("location", "https://www.example.com"),
- pair("content-encoding", "gzip"),
- pair("set-cookie", "foo=ASDJKHQKBZXOQWEOPIUAXQWEOIU; max-age=3600; version=1"),
- },
- []HeaderField{
- pair("set-cookie", "foo=ASDJKHQKBZXOQWEOPIUAXQWEOIU; max-age=3600; version=1"),
- pair("content-encoding", "gzip"),
- pair("date", "Mon, 21 Oct 2013 20:13:22 GMT"),
- },
- 215,
- },
- })
-}
-
-// http://http2.github.io/http2-spec/compression.html#rfc.section.C.6
-// "This section shows the same examples as the previous section, but
-// using Huffman encoding for the literal values. The HTTP/2 setting
-// parameter SETTINGS_HEADER_TABLE_SIZE is set to the value of 256
-// octets, causing some evictions to occur. The eviction mechanism
-// uses the length of the decoded literal values, so the same
-// evictions occurs as in the previous section."
-func TestDecodeC6_ResponsesHuffman(t *testing.T) {
- testDecodeSeries(t, 256, []encAndWant{
- {dehex(`
-4882 6402 5885 aec3 771a 4b61 96d0 7abe
-9410 54d4 44a8 2005 9504 0b81 66e0 82a6
-2d1b ff6e 919d 29ad 1718 63c7 8f0b 97c8
-e9ae 82ae 43d3
-`),
- []HeaderField{
- pair(":status", "302"),
- pair("cache-control", "private"),
- pair("date", "Mon, 21 Oct 2013 20:13:21 GMT"),
- pair("location", "https://www.example.com"),
- },
- []HeaderField{
- pair("location", "https://www.example.com"),
- pair("date", "Mon, 21 Oct 2013 20:13:21 GMT"),
- pair("cache-control", "private"),
- pair(":status", "302"),
- },
- 222,
- },
- {dehex("4883 640e ffc1 c0bf"),
- []HeaderField{
- pair(":status", "307"),
- pair("cache-control", "private"),
- pair("date", "Mon, 21 Oct 2013 20:13:21 GMT"),
- pair("location", "https://www.example.com"),
- },
- []HeaderField{
- pair(":status", "307"),
- pair("location", "https://www.example.com"),
- pair("date", "Mon, 21 Oct 2013 20:13:21 GMT"),
- pair("cache-control", "private"),
- },
- 222,
- },
- {dehex(`
-88c1 6196 d07a be94 1054 d444 a820 0595
-040b 8166 e084 a62d 1bff c05a 839b d9ab
-77ad 94e7 821d d7f2 e6c7 b335 dfdf cd5b
-3960 d5af 2708 7f36 72c1 ab27 0fb5 291f
-9587 3160 65c0 03ed 4ee5 b106 3d50 07
-`),
- []HeaderField{
- pair(":status", "200"),
- pair("cache-control", "private"),
- pair("date", "Mon, 21 Oct 2013 20:13:22 GMT"),
- pair("location", "https://www.example.com"),
- pair("content-encoding", "gzip"),
- pair("set-cookie", "foo=ASDJKHQKBZXOQWEOPIUAXQWEOIU; max-age=3600; version=1"),
- },
- []HeaderField{
- pair("set-cookie", "foo=ASDJKHQKBZXOQWEOPIUAXQWEOIU; max-age=3600; version=1"),
- pair("content-encoding", "gzip"),
- pair("date", "Mon, 21 Oct 2013 20:13:22 GMT"),
- },
- 215,
- },
- })
-}
-
-func testDecodeSeries(t *testing.T, size uint32, steps []encAndWant) {
- d := NewDecoder(size, nil)
- for i, step := range steps {
- hf, err := d.DecodeFull(step.enc)
- if err != nil {
- t.Fatalf("Error at step index %d: %v", i, err)
- }
- if !reflect.DeepEqual(hf, step.want) {
- t.Fatalf("At step index %d: Got headers %v; want %v", i, hf, step.want)
- }
- gotDynTab := d.dynTab.reverseCopy()
- if !reflect.DeepEqual(gotDynTab, step.wantDynTab) {
- t.Errorf("After step index %d, dynamic table = %v; want %v", i, gotDynTab, step.wantDynTab)
- }
- if d.dynTab.size != step.wantDynSize {
- t.Errorf("After step index %d, dynamic table size = %v; want %v", i, d.dynTab.size, step.wantDynSize)
- }
- }
-}
-
-func TestHuffmanDecodeExcessPadding(t *testing.T) {
- tests := [][]byte{
- {0xff}, // Padding Exceeds 7 bits
- {0x1f, 0xff}, // {"a", 1 byte excess padding}
- {0x1f, 0xff, 0xff}, // {"a", 2 byte excess padding}
- {0x1f, 0xff, 0xff, 0xff}, // {"a", 3 byte excess padding}
- {0xff, 0x9f, 0xff, 0xff, 0xff}, // {"a", 29 bit excess padding}
- {'R', 0xbc, '0', 0xff, 0xff, 0xff, 0xff}, // Padding ends on partial symbol.
- }
- for i, in := range tests {
- var buf bytes.Buffer
- if _, err := HuffmanDecode(&buf, in); err != ErrInvalidHuffman {
- t.Errorf("test-%d: decode(%q) = %v; want ErrInvalidHuffman", i, in, err)
- }
- }
-}
-
-func TestHuffmanDecodeEOS(t *testing.T) {
- in := []byte{0xff, 0xff, 0xff, 0xff, 0xfc} // {EOS, "?"}
- var buf bytes.Buffer
- if _, err := HuffmanDecode(&buf, in); err != ErrInvalidHuffman {
- t.Errorf("error = %v; want ErrInvalidHuffman", err)
- }
-}
-
-func TestHuffmanDecodeMaxLengthOnTrailingByte(t *testing.T) {
- in := []byte{0x00, 0x01} // {"0", "0", "0"}
- var buf bytes.Buffer
- if err := huffmanDecode(&buf, 2, in); err != ErrStringLength {
- t.Errorf("error = %v; want ErrStringLength", err)
- }
-}
-
-func TestHuffmanDecodeCorruptPadding(t *testing.T) {
- in := []byte{0x00}
- var buf bytes.Buffer
- if _, err := HuffmanDecode(&buf, in); err != ErrInvalidHuffman {
- t.Errorf("error = %v; want ErrInvalidHuffman", err)
- }
-}
-
-func TestHuffmanDecode(t *testing.T) {
- tests := []struct {
- inHex, want string
- }{
- {"f1e3 c2e5 f23a 6ba0 ab90 f4ff", "www.example.com"},
- {"a8eb 1064 9cbf", "no-cache"},
- {"25a8 49e9 5ba9 7d7f", "custom-key"},
- {"25a8 49e9 5bb8 e8b4 bf", "custom-value"},
- {"6402", "302"},
- {"aec3 771a 4b", "private"},
- {"d07a be94 1054 d444 a820 0595 040b 8166 e082 a62d 1bff", "Mon, 21 Oct 2013 20:13:21 GMT"},
- {"9d29 ad17 1863 c78f 0b97 c8e9 ae82 ae43 d3", "https://www.example.com"},
- {"9bd9 ab", "gzip"},
- {"94e7 821d d7f2 e6c7 b335 dfdf cd5b 3960 d5af 2708 7f36 72c1 ab27 0fb5 291f 9587 3160 65c0 03ed 4ee5 b106 3d50 07",
- "foo=ASDJKHQKBZXOQWEOPIUAXQWEOIU; max-age=3600; version=1"},
- }
- for i, tt := range tests {
- var buf bytes.Buffer
- in, err := hex.DecodeString(strings.Replace(tt.inHex, " ", "", -1))
- if err != nil {
- t.Errorf("%d. hex input error: %v", i, err)
- continue
- }
- if _, err := HuffmanDecode(&buf, in); err != nil {
- t.Errorf("%d. decode error: %v", i, err)
- continue
- }
- if got := buf.String(); tt.want != got {
- t.Errorf("%d. decode = %q; want %q", i, got, tt.want)
- }
- }
-}
-
-func TestAppendHuffmanString(t *testing.T) {
- tests := []struct {
- in, want string
- }{
- {"www.example.com", "f1e3 c2e5 f23a 6ba0 ab90 f4ff"},
- {"no-cache", "a8eb 1064 9cbf"},
- {"custom-key", "25a8 49e9 5ba9 7d7f"},
- {"custom-value", "25a8 49e9 5bb8 e8b4 bf"},
- {"302", "6402"},
- {"private", "aec3 771a 4b"},
- {"Mon, 21 Oct 2013 20:13:21 GMT", "d07a be94 1054 d444 a820 0595 040b 8166 e082 a62d 1bff"},
- {"https://www.example.com", "9d29 ad17 1863 c78f 0b97 c8e9 ae82 ae43 d3"},
- {"gzip", "9bd9 ab"},
- {"foo=ASDJKHQKBZXOQWEOPIUAXQWEOIU; max-age=3600; version=1",
- "94e7 821d d7f2 e6c7 b335 dfdf cd5b 3960 d5af 2708 7f36 72c1 ab27 0fb5 291f 9587 3160 65c0 03ed 4ee5 b106 3d50 07"},
- }
- for i, tt := range tests {
- buf := []byte{}
- want := strings.Replace(tt.want, " ", "", -1)
- buf = AppendHuffmanString(buf, tt.in)
- if got := hex.EncodeToString(buf); want != got {
- t.Errorf("%d. encode = %q; want %q", i, got, want)
- }
- }
-}
-
-func TestHuffmanMaxStrLen(t *testing.T) {
- const msg = "Some string"
- huff := AppendHuffmanString(nil, msg)
-
- testGood := func(max int) {
- var out bytes.Buffer
- if err := huffmanDecode(&out, max, huff); err != nil {
- t.Errorf("For maxLen=%d, unexpected error: %v", max, err)
- }
- if out.String() != msg {
- t.Errorf("For maxLen=%d, out = %q; want %q", max, out.String(), msg)
- }
- }
- testGood(0)
- testGood(len(msg))
- testGood(len(msg) + 1)
-
- var out bytes.Buffer
- if err := huffmanDecode(&out, len(msg)-1, huff); err != ErrStringLength {
- t.Errorf("err = %v; want ErrStringLength", err)
- }
-}
-
-func TestHuffmanRoundtripStress(t *testing.T) {
- const Len = 50 // of uncompressed string
- input := make([]byte, Len)
- var output bytes.Buffer
- var huff []byte
-
- n := 5000
- if testing.Short() {
- n = 100
- }
- seed := time.Now().UnixNano()
- t.Logf("Seed = %v", seed)
- src := rand.New(rand.NewSource(seed))
- var encSize int64
- for i := 0; i < n; i++ {
- for l := range input {
- input[l] = byte(src.Intn(256))
- }
- huff = AppendHuffmanString(huff[:0], string(input))
- encSize += int64(len(huff))
- output.Reset()
- if err := huffmanDecode(&output, 0, huff); err != nil {
- t.Errorf("Failed to decode %q -> %q -> error %v", input, huff, err)
- continue
- }
- if !bytes.Equal(output.Bytes(), input) {
- t.Errorf("Roundtrip failure on %q -> %q -> %q", input, huff, output.Bytes())
- }
- }
- t.Logf("Compressed size of original: %0.02f%% (%v -> %v)", 100*(float64(encSize)/(Len*float64(n))), Len*n, encSize)
-}
-
-func TestHuffmanDecodeFuzz(t *testing.T) {
- const Len = 50 // of compressed
- var buf, zbuf bytes.Buffer
-
- n := 5000
- if testing.Short() {
- n = 100
- }
- seed := time.Now().UnixNano()
- t.Logf("Seed = %v", seed)
- src := rand.New(rand.NewSource(seed))
- numFail := 0
- for i := 0; i < n; i++ {
- zbuf.Reset()
- if i == 0 {
- // Start with at least one invalid one.
- zbuf.WriteString("00\x91\xff\xff\xff\xff\xc8")
- } else {
- for l := 0; l < Len; l++ {
- zbuf.WriteByte(byte(src.Intn(256)))
- }
- }
-
- buf.Reset()
- if err := huffmanDecode(&buf, 0, zbuf.Bytes()); err != nil {
- if err == ErrInvalidHuffman {
- numFail++
- continue
- }
- t.Errorf("Failed to decode %q: %v", zbuf.Bytes(), err)
- continue
- }
- }
- t.Logf("%0.02f%% are invalid (%d / %d)", 100*float64(numFail)/float64(n), numFail, n)
- if numFail < 1 {
- t.Error("expected at least one invalid huffman encoding (test starts with one)")
- }
-}
-
-func TestReadVarInt(t *testing.T) {
- type res struct {
- i uint64
- consumed int
- err error
- }
- tests := []struct {
- n byte
- p []byte
- want res
- }{
- // Fits in a byte:
- {1, []byte{0}, res{0, 1, nil}},
- {2, []byte{2}, res{2, 1, nil}},
- {3, []byte{6}, res{6, 1, nil}},
- {4, []byte{14}, res{14, 1, nil}},
- {5, []byte{30}, res{30, 1, nil}},
- {6, []byte{62}, res{62, 1, nil}},
- {7, []byte{126}, res{126, 1, nil}},
- {8, []byte{254}, res{254, 1, nil}},
-
- // Doesn't fit in a byte:
- {1, []byte{1}, res{0, 0, errNeedMore}},
- {2, []byte{3}, res{0, 0, errNeedMore}},
- {3, []byte{7}, res{0, 0, errNeedMore}},
- {4, []byte{15}, res{0, 0, errNeedMore}},
- {5, []byte{31}, res{0, 0, errNeedMore}},
- {6, []byte{63}, res{0, 0, errNeedMore}},
- {7, []byte{127}, res{0, 0, errNeedMore}},
- {8, []byte{255}, res{0, 0, errNeedMore}},
-
- // Ignoring top bits:
- {5, []byte{255, 154, 10}, res{1337, 3, nil}}, // high dummy three bits: 111
- {5, []byte{159, 154, 10}, res{1337, 3, nil}}, // high dummy three bits: 100
- {5, []byte{191, 154, 10}, res{1337, 3, nil}}, // high dummy three bits: 101
-
- // Extra byte:
- {5, []byte{191, 154, 10, 2}, res{1337, 3, nil}}, // extra byte
-
- // Short a byte:
- {5, []byte{191, 154}, res{0, 0, errNeedMore}},
-
- // integer overflow:
- {1, []byte{255, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128}, res{0, 0, errVarintOverflow}},
- }
- for _, tt := range tests {
- i, remain, err := readVarInt(tt.n, tt.p)
- consumed := len(tt.p) - len(remain)
- got := res{i, consumed, err}
- if got != tt.want {
- t.Errorf("readVarInt(%d, %v ~ %x) = %+v; want %+v", tt.n, tt.p, tt.p, got, tt.want)
- }
- }
-}
-
-// Fuzz crash, originally reported at https://github.com/bradfitz/http2/issues/56
-func TestHuffmanFuzzCrash(t *testing.T) {
- got, err := HuffmanDecodeToString([]byte("00\x91\xff\xff\xff\xff\xc8"))
- if got != "" {
- t.Errorf("Got %q; want empty string", got)
- }
- if err != ErrInvalidHuffman {
- t.Errorf("Err = %v; want ErrInvalidHuffman", err)
- }
-}
-
-func pair(name, value string) HeaderField {
- return HeaderField{Name: name, Value: value}
-}
-
-func dehex(s string) []byte {
- s = strings.Replace(s, " ", "", -1)
- s = strings.Replace(s, "\n", "", -1)
- b, err := hex.DecodeString(s)
- if err != nil {
- panic(err)
- }
- return b
-}
-
-func TestEmitEnabled(t *testing.T) {
- var buf bytes.Buffer
- enc := NewEncoder(&buf)
- enc.WriteField(HeaderField{Name: "foo", Value: "bar"})
- enc.WriteField(HeaderField{Name: "foo", Value: "bar"})
-
- numCallback := 0
- var dec *Decoder
- dec = NewDecoder(8<<20, func(HeaderField) {
- numCallback++
- dec.SetEmitEnabled(false)
- })
- if !dec.EmitEnabled() {
- t.Errorf("initial emit enabled = false; want true")
- }
- if _, err := dec.Write(buf.Bytes()); err != nil {
- t.Error(err)
- }
- if numCallback != 1 {
- t.Errorf("num callbacks = %d; want 1", numCallback)
- }
- if dec.EmitEnabled() {
- t.Errorf("emit enabled = true; want false")
- }
-}
-
-func TestSaveBufLimit(t *testing.T) {
- const maxStr = 1 << 10
- var got []HeaderField
- dec := NewDecoder(initialHeaderTableSize, func(hf HeaderField) {
- got = append(got, hf)
- })
- dec.SetMaxStringLength(maxStr)
- var frag []byte
- frag = append(frag[:0], encodeTypeByte(false, false))
- frag = appendVarInt(frag, 7, 3)
- frag = append(frag, "foo"...)
- frag = appendVarInt(frag, 7, 3)
- frag = append(frag, "bar"...)
-
- if _, err := dec.Write(frag); err != nil {
- t.Fatal(err)
- }
-
- want := []HeaderField{{Name: "foo", Value: "bar"}}
- if !reflect.DeepEqual(got, want) {
- t.Errorf("After small writes, got %v; want %v", got, want)
- }
-
- frag = append(frag[:0], encodeTypeByte(false, false))
- frag = appendVarInt(frag, 7, maxStr*3)
- frag = append(frag, make([]byte, maxStr*3)...)
-
- _, err := dec.Write(frag)
- if err != ErrStringLength {
- t.Fatalf("Write error = %v; want ErrStringLength", err)
- }
-}
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