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// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "common/structured_headers.h"
#include <math.h>
#include <limits>
#include <string>
#include "common/platform/api/quiche_test.h"
namespace quiche {
namespace structured_headers {
namespace {
// Helpers to make test cases clearer
Item Token(std::string value) { return Item(value, Item::kTokenType); }
Item Integer(int64_t value) { return Item(value); }
// Parameter with null value, only used in Structured Headers Draft 09
std::pair<std::string, Item> NullParam(std::string key) {
return std::make_pair(key, Item());
}
std::pair<std::string, Item> BooleanParam(std::string key, bool value) {
return std::make_pair(key, Item(value));
}
std::pair<std::string, Item> DoubleParam(std::string key, double value) {
return std::make_pair(key, Item(value));
}
std::pair<std::string, Item> Param(std::string key, int64_t value) {
return std::make_pair(key, Item(value));
}
std::pair<std::string, Item> Param(std::string key, std::string value) {
return std::make_pair(key, Item(value));
}
std::pair<std::string, Item> ByteSequenceParam(std::string key,
std::string value) {
return std::make_pair(key, Item(value, Item::kByteSequenceType));
}
std::pair<std::string, Item> TokenParam(std::string key, std::string value) {
return std::make_pair(key, Token(value));
}
// Test cases taken from https://github.com/httpwg/structured-header-tests can
// be found in structured_headers_generated_unittest.cc
const struct ItemTestCase {
const char* name;
const char* raw;
const absl::optional<Item> expected; // nullopt if parse error is expected.
const char* canonical; // nullptr if parse error is expected, or if canonical
// format is identical to raw.
} item_test_cases[] = {
// Token
{"bad token - item", "abc$@%!", absl::nullopt, nullptr},
{"leading whitespace", " foo", Token("foo"), "foo"},
{"trailing whitespace", "foo ", Token("foo"), "foo"},
{"leading asterisk", "*foo", Token("*foo"), nullptr},
// Number
{"long integer", "999999999999999", Integer(999999999999999L), nullptr},
{"long negative integer", "-999999999999999", Integer(-999999999999999L),
nullptr},
{"too long integer", "1000000000000000", absl::nullopt, nullptr},
{"negative too long integer", "-1000000000000000", absl::nullopt, nullptr},
{"integral decimal", "1.0", Item(1.0), nullptr},
// String
{"basic string", "\"foo\"", Item("foo"), nullptr},
{"non-ascii string", "\"f\xC3\xBC\xC3\xBC\"", absl::nullopt, nullptr},
// Additional tests
{"valid quoting containing \\n", "\"\\\\n\"", Item("\\n"), nullptr},
{"valid quoting containing \\t", "\"\\\\t\"", Item("\\t"), nullptr},
{"valid quoting containing \\x", "\"\\\\x61\"", Item("\\x61"), nullptr},
{"c-style hex escape in string", "\"\\x61\"", absl::nullopt, nullptr},
{"valid quoting containing \\u", "\"\\\\u0061\"", Item("\\u0061"), nullptr},
{"c-style unicode escape in string", "\"\\u0061\"", absl::nullopt, nullptr},
};
const ItemTestCase sh09_item_test_cases[] = {
// Integer
{"large integer", "9223372036854775807", Integer(9223372036854775807L),
nullptr},
{"large negative integer", "-9223372036854775807",
Integer(-9223372036854775807L), nullptr},
{"too large integer", "9223372036854775808", absl::nullopt, nullptr},
{"too large negative integer", "-9223372036854775808", absl::nullopt,
nullptr},
// Byte Sequence
{"basic binary", "*aGVsbG8=*", Item("hello", Item::kByteSequenceType),
nullptr},
{"empty binary", "**", Item("", Item::kByteSequenceType), nullptr},
{"bad paddding", "*aGVsbG8*", Item("hello", Item::kByteSequenceType),
"*aGVsbG8=*"},
{"bad end delimiter", "*aGVsbG8=", absl::nullopt, nullptr},
{"extra whitespace", "*aGVsb G8=*", absl::nullopt, nullptr},
{"extra chars", "*aGVsbG!8=*", absl::nullopt, nullptr},
{"suffix chars", "*aGVsbG8=!*", absl::nullopt, nullptr},
{"non-zero pad bits", "*iZ==*", Item("\x89", Item::kByteSequenceType),
"*iQ==*"},
{"non-ASCII binary", "*/+Ah*", Item("\xFF\xE0!", Item::kByteSequenceType),
nullptr},
{"base64url binary", "*_-Ah*", absl::nullopt, nullptr},
{"token with leading asterisk", "*foo", absl::nullopt, nullptr},
};
// For Structured Headers Draft 15
const struct ParameterizedItemTestCase {
const char* name;
const char* raw;
const absl::optional<ParameterizedItem>
expected; // nullopt if parse error is expected.
const char* canonical; // nullptr if parse error is expected, or if canonical
// format is identical to raw.
} parameterized_item_test_cases[] = {
{"single parameter item",
"text/html;q=1.0",
{{Token("text/html"), {DoubleParam("q", 1)}}},
nullptr},
{"missing parameter value item",
"text/html;a;q=1.0",
{{Token("text/html"), {BooleanParam("a", true), DoubleParam("q", 1)}}},
nullptr},
{"missing terminal parameter value item",
"text/html;q=1.0;a",
{{Token("text/html"), {DoubleParam("q", 1), BooleanParam("a", true)}}},
nullptr},
{"duplicate parameter keys with different value",
"text/html;a=1;b=2;a=3.0",
{{Token("text/html"), {DoubleParam("a", 3), Param("b", 2L)}}},
"text/html;a=3.0;b=2"},
{"multiple duplicate parameter keys at different position",
"text/html;c=1;a=2;b;b=3.0;a",
{{Token("text/html"),
{Param("c", 1L), BooleanParam("a", true), DoubleParam("b", 3)}}},
"text/html;c=1;a;b=3.0"},
{"duplicate parameter keys with missing value",
"text/html;a;a=1",
{{Token("text/html"), {Param("a", 1L)}}},
"text/html;a=1"},
{"whitespace before = parameterised item", "text/html, text/plain;q =0.5",
absl::nullopt, nullptr},
{"whitespace after = parameterised item", "text/html, text/plain;q= 0.5",
absl::nullopt, nullptr},
{"whitespace before ; parameterised item", "text/html, text/plain ;q=0.5",
absl::nullopt, nullptr},
{"whitespace after ; parameterised item",
"text/plain; q=0.5",
{{Token("text/plain"), {DoubleParam("q", 0.5)}}},
"text/plain;q=0.5"},
{"extra whitespace parameterised item",
"text/plain; q=0.5; charset=utf-8",
{{Token("text/plain"),
{DoubleParam("q", 0.5), TokenParam("charset", "utf-8")}}},
"text/plain;q=0.5;charset=utf-8"},
};
// For Structured Headers Draft 15
const struct ListTestCase {
const char* name;
const char* raw;
const absl::optional<List> expected; // nullopt if parse error is expected.
const char* canonical; // nullptr if parse error is expected, or if canonical
// format is identical to raw.
} list_test_cases[] = {
// Lists of lists
{"extra whitespace list of lists",
"(1 42)",
{{{{{Integer(1L), {}}, {Integer(42L), {}}}, {}}}},
"(1 42)"},
// Parameterized Lists
{"basic parameterised list",
"abc_123;a=1;b=2; cdef_456, ghi;q=\"9\";r=\"+w\"",
{{{Token("abc_123"),
{Param("a", 1), Param("b", 2), BooleanParam("cdef_456", true)}},
{Token("ghi"), {Param("q", "9"), Param("r", "+w")}}}},
"abc_123;a=1;b=2;cdef_456, ghi;q=\"9\";r=\"+w\""},
// Parameterized inner lists
{"parameterised basic list of lists",
"(1;a=1.0 2), (42 43)",
{{{{{Integer(1L), {DoubleParam("a", 1.0)}}, {Integer(2L), {}}}, {}},
{{{Integer(42L), {}}, {Integer(43L), {}}}, {}}}},
nullptr},
{"parameters on inner members",
"(1;a=1.0 2;b=c), (42;d=?0 43;e=:Zmdo:)",
{{{{{Integer(1L), {DoubleParam("a", 1.0)}},
{Integer(2L), {TokenParam("b", "c")}}},
{}},
{{{Integer(42L), {BooleanParam("d", false)}},
{Integer(43L), {ByteSequenceParam("e", "fgh")}}},
{}}}},
nullptr},
{"parameters on inner lists",
"(1 2);a=1.0, (42 43);b=?0",
{{{{{Integer(1L), {}}, {Integer(2L), {}}}, {DoubleParam("a", 1.0)}},
{{{Integer(42L), {}}, {Integer(43L), {}}}, {BooleanParam("b", false)}}}},
nullptr},
{"default true values for parameters on inner list members",
"(1;a 2), (42 43;b)",
{{{{{Integer(1L), {BooleanParam("a", true)}}, {Integer(2L), {}}}, {}},
{{{Integer(42L), {}}, {Integer(43L), {BooleanParam("b", true)}}}, {}}}},
nullptr},
{"default true values for parameters on inner lists",
"(1 2);a, (42 43);b",
{{{{{Integer(1L), {}}, {Integer(2L), {}}}, {BooleanParam("a", true)}},
{{{Integer(42L), {}}, {Integer(43L), {}}}, {BooleanParam("b", true)}}}},
nullptr},
{"extra whitespace before semicolon in parameters on inner list member",
"(a;b ;c b)", absl::nullopt, nullptr},
{"extra whitespace between parameters on inner list member",
"(a;b; c b)",
{{{{{Token("a"), {BooleanParam("b", true), BooleanParam("c", true)}},
{Token("b"), {}}},
{}}}},
"(a;b;c b)"},
{"extra whitespace before semicolon in parameters on inner list",
"(a b);c ;d, (e)", absl::nullopt, nullptr},
{"extra whitespace between parameters on inner list",
"(a b);c; d, (e)",
{{{{{Token("a"), {}}, {Token("b"), {}}},
{BooleanParam("c", true), BooleanParam("d", true)}},
{{{Token("e"), {}}}, {}}}},
"(a b);c;d, (e)"},
};
// For Structured Headers Draft 15
const struct DictionaryTestCase {
const char* name;
const char* raw;
const absl::optional<Dictionary>
expected; // nullopt if parse error is expected.
const char* canonical; // nullptr if parse error is expected, or if canonical
// format is identical to raw.
} dictionary_test_cases[] = {
{"basic dictionary",
"en=\"Applepie\", da=:aGVsbG8=:",
{Dictionary{{{"en", {Item("Applepie"), {}}},
{"da", {Item("hello", Item::kByteSequenceType), {}}}}}},
nullptr},
{"tab separated dictionary",
"a=1\t,\tb=2",
{Dictionary{{{"a", {Integer(1L), {}}}, {"b", {Integer(2L), {}}}}}},
"a=1, b=2"},
{"missing value with params dictionary",
"a=1, b;foo=9, c=3",
{Dictionary{{{"a", {Integer(1L), {}}},
{"b", {Item(true), {Param("foo", 9)}}},
{"c", {Integer(3L), {}}}}}},
nullptr},
// Parameterised dictionary tests
{"parameterised inner list member dict",
"a=(\"1\";b=1;c=?0 \"2\");d=\"e\"",
{Dictionary{{{"a",
{{{Item("1"), {Param("b", 1), BooleanParam("c", false)}},
{Item("2"), {}}},
{Param("d", "e")}}}}}},
nullptr},
{"explicit true value with parameter",
"a=?1;b=1",
{Dictionary{{{"a", {Item(true), {Param("b", 1)}}}}}},
"a;b=1"},
{"implicit true value with parameter",
"a;b=1",
{Dictionary{{{"a", {Item(true), {Param("b", 1)}}}}}},
nullptr},
{"implicit true value with implicitly-valued parameter",
"a;b",
{Dictionary{{{"a", {Item(true), {BooleanParam("b", true)}}}}}},
nullptr},
};
} // namespace
TEST(StructuredHeaderTest, ParseBareItem) {
for (const auto& c : item_test_cases) {
SCOPED_TRACE(c.name);
absl::optional<Item> result = ParseBareItem(c.raw);
EXPECT_EQ(result, c.expected);
}
}
// For Structured Headers Draft 15, these tests include parameters on Items.
TEST(StructuredHeaderTest, ParseItem) {
for (const auto& c : parameterized_item_test_cases) {
SCOPED_TRACE(c.name);
absl::optional<ParameterizedItem> result = ParseItem(c.raw);
EXPECT_EQ(result, c.expected);
}
}
// Structured Headers Draft 9 parsing rules are different than Draft 15, and
// some strings which are considered invalid in SH15 should parse in SH09.
// The SH09 Item parser is not directly exposed, but can be used indirectly by
// calling the parser for SH09-specific lists.
TEST(StructuredHeaderTest, ParseSH09Item) {
for (const auto& c : sh09_item_test_cases) {
SCOPED_TRACE(c.name);
absl::optional<ListOfLists> result = ParseListOfLists(c.raw);
if (c.expected.has_value()) {
EXPECT_TRUE(result.has_value());
EXPECT_EQ(result->size(), 1UL);
EXPECT_EQ((*result)[0].size(), 1UL);
EXPECT_EQ((*result)[0][0], c.expected);
} else {
EXPECT_FALSE(result.has_value());
}
}
}
// In Structured Headers Draft 9, floats can have more than three fractional
// digits, and can be larger than 1e12. This behaviour is exposed in the parser
// for SH09-specific lists, so test it through that interface.
TEST(StructuredHeaderTest, SH09HighPrecisionFloats) {
// These values are exactly representable in binary floating point, so no
// accuracy issues are expected in this test.
absl::optional<ListOfLists> result =
ParseListOfLists("1.03125;-1.03125;12345678901234.5;-12345678901234.5");
ASSERT_TRUE(result.has_value());
EXPECT_EQ(*result,
(ListOfLists{{Item(1.03125), Item(-1.03125), Item(12345678901234.5),
Item(-12345678901234.5)}}));
result = ParseListOfLists("123456789012345.0");
EXPECT_FALSE(result.has_value());
result = ParseListOfLists("-123456789012345.0");
EXPECT_FALSE(result.has_value());
}
// For Structured Headers Draft 9
TEST(StructuredHeaderTest, ParseListOfLists) {
static const struct TestCase {
const char* name;
const char* raw;
ListOfLists expected; // empty if parse error is expected
} cases[] = {
{"basic list of lists",
"1;2, 42;43",
{{Integer(1L), Integer(2L)}, {Integer(42L), Integer(43L)}}},
{"empty list of lists", "", {}},
{"single item list of lists", "42", {{Integer(42L)}}},
{"no whitespace list of lists", "1,42", {{Integer(1L)}, {Integer(42L)}}},
{"no inner whitespace list of lists",
"1;2, 42;43",
{{Integer(1L), Integer(2L)}, {Integer(42L), Integer(43L)}}},
{"extra whitespace list of lists",
"1 , 42",
{{Integer(1L)}, {Integer(42L)}}},
{"extra inner whitespace list of lists",
"1 ; 2,42 ; 43",
{{Integer(1L), Integer(2L)}, {Integer(42L), Integer(43L)}}},
{"trailing comma list of lists", "1;2, 42,", {}},
{"trailing semicolon list of lists", "1;2, 42;43;", {}},
{"leading comma list of lists", ",1;2, 42", {}},
{"leading semicolon list of lists", ";1;2, 42;43", {}},
{"empty item list of lists", "1,,42", {}},
{"empty inner item list of lists", "1;;2,42", {}},
};
for (const auto& c : cases) {
SCOPED_TRACE(c.name);
absl::optional<ListOfLists> result = ParseListOfLists(c.raw);
if (!c.expected.empty()) {
EXPECT_TRUE(result.has_value());
EXPECT_EQ(*result, c.expected);
} else {
EXPECT_FALSE(result.has_value());
}
}
}
// For Structured Headers Draft 9
TEST(StructuredHeaderTest, ParseParameterisedList) {
static const struct TestCase {
const char* name;
const char* raw;
ParameterisedList expected; // empty if parse error is expected
} cases[] = {
{"basic param-list",
"abc_123;a=1;b=2; cdef_456, ghi;q=\"9\";r=\"w\"",
{
{Token("abc_123"),
{Param("a", 1), Param("b", 2), NullParam("cdef_456")}},
{Token("ghi"), {Param("q", "9"), Param("r", "w")}},
}},
{"empty param-list", "", {}},
{"single item param-list",
"text/html;q=1",
{{Token("text/html"), {Param("q", 1)}}}},
{"empty param-list", "", {}},
{"no whitespace param-list",
"text/html,text/plain;q=1",
{{Token("text/html"), {}}, {Token("text/plain"), {Param("q", 1)}}}},
{"whitespace before = param-list", "text/html, text/plain;q =1", {}},
{"whitespace after = param-list", "text/html, text/plain;q= 1", {}},
{"extra whitespace param-list",
"text/html , text/plain ; q=1",
{{Token("text/html"), {}}, {Token("text/plain"), {Param("q", 1)}}}},
{"duplicate key", "abc;a=1;b=2;a=1", {}},
{"numeric key", "abc;a=1;1b=2;c=1", {}},
{"uppercase key", "abc;a=1;B=2;c=1", {}},
{"bad key", "abc;a=1;b!=2;c=1", {}},
{"another bad key", "abc;a=1;b==2;c=1", {}},
{"empty key name", "abc;a=1;=2;c=1", {}},
{"empty parameter", "abc;a=1;;c=1", {}},
{"empty list item", "abc;a=1,,def;b=1", {}},
{"extra semicolon", "abc;a=1;b=1;", {}},
{"extra comma", "abc;a=1,def;b=1,", {}},
{"leading semicolon", ";abc;a=1", {}},
{"leading comma", ",abc;a=1", {}},
};
for (const auto& c : cases) {
SCOPED_TRACE(c.name);
absl::optional<ParameterisedList> result = ParseParameterisedList(c.raw);
if (c.expected.empty()) {
EXPECT_FALSE(result.has_value());
continue;
}
EXPECT_TRUE(result.has_value());
EXPECT_EQ(result->size(), c.expected.size());
if (result->size() == c.expected.size()) {
for (size_t i = 0; i < c.expected.size(); ++i) {
EXPECT_EQ((*result)[i], c.expected[i]);
}
}
}
}
// For Structured Headers Draft 15
TEST(StructuredHeaderTest, ParseList) {
for (const auto& c : list_test_cases) {
SCOPED_TRACE(c.name);
absl::optional<List> result = ParseList(c.raw);
EXPECT_EQ(result, c.expected);
}
}
// For Structured Headers Draft 15
TEST(StructuredHeaderTest, ParseDictionary) {
for (const auto& c : dictionary_test_cases) {
SCOPED_TRACE(c.name);
absl::optional<Dictionary> result = ParseDictionary(c.raw);
EXPECT_EQ(result, c.expected);
}
}
// Serializer tests are all exclusively for Structured Headers Draft 15
TEST(StructuredHeaderTest, SerializeItem) {
for (const auto& c : item_test_cases) {
SCOPED_TRACE(c.name);
if (c.expected) {
absl::optional<std::string> result = SerializeItem(*c.expected);
EXPECT_TRUE(result.has_value());
EXPECT_EQ(result.value(), std::string(c.canonical ? c.canonical : c.raw));
}
}
}
TEST(StructuredHeaderTest, SerializeParameterizedItem) {
for (const auto& c : parameterized_item_test_cases) {
SCOPED_TRACE(c.name);
if (c.expected) {
absl::optional<std::string> result = SerializeItem(*c.expected);
EXPECT_TRUE(result.has_value());
EXPECT_EQ(result.value(), std::string(c.canonical ? c.canonical : c.raw));
}
}
}
TEST(StructuredHeaderTest, UnserializableItems) {
// Test that items with unknown type are not serialized.
EXPECT_FALSE(SerializeItem(Item()).has_value());
}
TEST(StructuredHeaderTest, UnserializableTokens) {
static const struct UnserializableString {
const char* name;
const char* value;
} bad_tokens[] = {
{"empty token", ""},
{"contains high ascii", "a\xff"},
{"contains nonprintable character", "a\x7f"},
{"contains C0", "a\x01"},
{"UTF-8 encoded", "a\xc3\xa9"},
{"contains TAB", "a\t"},
{"contains LF", "a\n"},
{"contains CR", "a\r"},
{"contains SP", "a "},
{"begins with digit", "9token"},
{"begins with hyphen", "-token"},
{"begins with LF", "\ntoken"},
{"begins with SP", " token"},
{"begins with colon", ":token"},
{"begins with percent", "%token"},
{"begins with period", ".token"},
{"begins with slash", "/token"},
};
for (const auto& bad_token : bad_tokens) {
SCOPED_TRACE(bad_token.name);
absl::optional<std::string> serialization =
SerializeItem(Token(bad_token.value));
EXPECT_FALSE(serialization.has_value()) << *serialization;
}
}
TEST(StructuredHeaderTest, UnserializableKeys) {
static const struct UnserializableString {
const char* name;
const char* value;
} bad_keys[] = {
{"empty key", ""},
{"contains high ascii", "a\xff"},
{"contains nonprintable character", "a\x7f"},
{"contains C0", "a\x01"},
{"UTF-8 encoded", "a\xc3\xa9"},
{"contains TAB", "a\t"},
{"contains LF", "a\n"},
{"contains CR", "a\r"},
{"contains SP", "a "},
{"begins with uppercase", "Atoken"},
{"begins with digit", "9token"},
{"begins with hyphen", "-token"},
{"begins with LF", "\ntoken"},
{"begins with SP", " token"},
{"begins with colon", ":token"},
{"begins with percent", "%token"},
{"begins with period", ".token"},
{"begins with slash", "/token"},
};
for (const auto& bad_key : bad_keys) {
SCOPED_TRACE(bad_key.name);
absl::optional<std::string> serialization =
SerializeItem(ParameterizedItem("a", {{bad_key.value, "a"}}));
EXPECT_FALSE(serialization.has_value()) << *serialization;
}
}
TEST(StructuredHeaderTest, UnserializableStrings) {
static const struct UnserializableString {
const char* name;
const char* value;
} bad_strings[] = {
{"contains high ascii", "a\xff"},
{"contains nonprintable character", "a\x7f"},
{"UTF-8 encoded", "a\xc3\xa9"},
{"contains TAB", "a\t"},
{"contains LF", "a\n"},
{"contains CR", "a\r"},
{"contains C0", "a\x01"},
};
for (const auto& bad_string : bad_strings) {
SCOPED_TRACE(bad_string.name);
absl::optional<std::string> serialization =
SerializeItem(Item(bad_string.value));
EXPECT_FALSE(serialization.has_value()) << *serialization;
}
}
TEST(StructuredHeaderTest, UnserializableIntegers) {
EXPECT_FALSE(SerializeItem(Integer(1e15L)).has_value());
EXPECT_FALSE(SerializeItem(Integer(-1e15L)).has_value());
}
TEST(StructuredHeaderTest, UnserializableDecimals) {
for (double value :
{std::numeric_limits<double>::quiet_NaN(),
std::numeric_limits<double>::infinity(),
-std::numeric_limits<double>::infinity(), 1e12, 1e12 - 0.0001,
1e12 - 0.0005, -1e12, -1e12 + 0.0001, -1e12 + 0.0005}) {
auto x = SerializeItem(Item(value));
EXPECT_FALSE(SerializeItem(Item(value)).has_value());
}
}
// These values cannot be directly parsed from headers, but are valid doubles
// which can be serialized as sh-floats (though rounding is expected.)
TEST(StructuredHeaderTest, SerializeUnparseableDecimals) {
struct UnparseableDecimal {
const char* name;
double value;
const char* canonical;
} float_test_cases[] = {
{"negative 0", -0.0, "0.0"},
{"0.0001", 0.0001, "0.0"},
{"0.0000001", 0.0000001, "0.0"},
{"1.0001", 1.0001, "1.0"},
{"1.0009", 1.0009, "1.001"},
{"round positive odd decimal", 0.0015, "0.002"},
{"round positive even decimal", 0.0025, "0.002"},
{"round negative odd decimal", -0.0015, "-0.002"},
{"round negative even decimal", -0.0025, "-0.002"},
{"round decimal up to integer part", 9.9995, "10.0"},
{"subnormal numbers", std::numeric_limits<double>::denorm_min(), "0.0"},
{"round up to 10 digits", 1e9 - 0.0000001, "1000000000.0"},
{"round up to 11 digits", 1e10 - 0.000001, "10000000000.0"},
{"round up to 12 digits", 1e11 - 0.00001, "100000000000.0"},
{"largest serializable float", nextafter(1e12 - 0.0005, 0),
"999999999999.999"},
{"largest serializable negative float", -nextafter(1e12 - 0.0005, 0),
"-999999999999.999"},
// This will fail if we simply truncate the fractional portion.
{"float rounds up to next int", 3.9999999, "4.0"},
// This will fail if we first round to >3 digits, and then round again to
// 3 digits.
{"don't double round", 3.99949, "3.999"},
// This will fail if we first round to 3 digits, and then round again to
// max_avail_digits.
{"don't double round", 123456789.99949, "123456789.999"},
};
for (const auto& test_case : float_test_cases) {
SCOPED_TRACE(test_case.name);
absl::optional<std::string> serialization =
SerializeItem(Item(test_case.value));
EXPECT_TRUE(serialization.has_value());
EXPECT_EQ(*serialization, test_case.canonical);
}
}
TEST(StructuredHeaderTest, SerializeList) {
for (const auto& c : list_test_cases) {
SCOPED_TRACE(c.name);
if (c.expected) {
absl::optional<std::string> result = SerializeList(*c.expected);
EXPECT_TRUE(result.has_value());
EXPECT_EQ(result.value(), std::string(c.canonical ? c.canonical : c.raw));
}
}
}
TEST(StructuredHeaderTest, UnserializableLists) {
static const struct UnserializableList {
const char* name;
const List value;
} bad_lists[] = {
{"Null item as member", {{Item(), {}}}},
{"Unserializable item as member", {{Token("\n"), {}}}},
{"Key is empty", {{Token("abc"), {Param("", 1)}}}},
{"Key containswhitespace", {{Token("abc"), {Param("a\n", 1)}}}},
{"Key contains UTF8", {{Token("abc"), {Param("a\xc3\xa9", 1)}}}},
{"Key contains unprintable characters",
{{Token("abc"), {Param("a\x7f", 1)}}}},
{"Key contains disallowed characters",
{{Token("abc"), {Param("a:", 1)}}}},
{"Param value is unserializable", {{Token("abc"), {{"a", Token("\n")}}}}},
{"Inner list contains unserializable item",
{{std::vector<ParameterizedItem>{{Token("\n"), {}}}, {}}}},
};
for (const auto& bad_list : bad_lists) {
SCOPED_TRACE(bad_list.name);
absl::optional<std::string> serialization = SerializeList(bad_list.value);
EXPECT_FALSE(serialization.has_value()) << *serialization;
}
}
TEST(StructuredHeaderTest, SerializeDictionary) {
for (const auto& c : dictionary_test_cases) {
SCOPED_TRACE(c.name);
if (c.expected) {
absl::optional<std::string> result = SerializeDictionary(*c.expected);
EXPECT_TRUE(result.has_value());
EXPECT_EQ(result.value(), std::string(c.canonical ? c.canonical : c.raw));
}
}
}
TEST(StructuredHeaderTest, DictionaryConstructors) {
const std::string key0 = "key0";
const std::string key1 = "key1";
const ParameterizedMember member0{Item("Applepie"), {}};
const ParameterizedMember member1{Item("hello", Item::kByteSequenceType), {}};
Dictionary dict;
EXPECT_TRUE(dict.empty());
EXPECT_EQ(0U, dict.size());
dict[key0] = member0;
EXPECT_FALSE(dict.empty());
EXPECT_EQ(1U, dict.size());
const Dictionary dict_copy = dict;
EXPECT_FALSE(dict_copy.empty());
EXPECT_EQ(1U, dict_copy.size());
EXPECT_EQ(dict, dict_copy);
const Dictionary dict_init{{{key0, member0}, {key1, member1}}};
EXPECT_FALSE(dict_init.empty());
EXPECT_EQ(2U, dict_init.size());
EXPECT_EQ(member0, dict_init.at(key0));
EXPECT_EQ(member1, dict_init.at(key1));
}
TEST(StructuredHeaderTest, DictionaryAccessors) {
const std::string key0 = "key0";
const std::string key1 = "key1";
const ParameterizedMember nonempty_member0{Item("Applepie"), {}};
const ParameterizedMember nonempty_member1{
Item("hello", Item::kByteSequenceType), {}};
const ParameterizedMember empty_member;
Dictionary dict{{{key0, nonempty_member0}}};
EXPECT_TRUE(dict.contains(key0));
EXPECT_EQ(nonempty_member0, dict[key0]);
EXPECT_EQ(&dict[key0], &dict.at(key0));
EXPECT_EQ(&dict[key0], &dict[0]);
EXPECT_EQ(&dict[key0], &dict.at(0));
// Even if the key does not yet exist in |dict|, operator[]() should
// automatically create an empty entry.
ASSERT_FALSE(dict.contains(key1));
ParameterizedMember& member1 = dict[key1];
EXPECT_TRUE(dict.contains(key1));
EXPECT_EQ(empty_member, member1);
EXPECT_EQ(&member1, &dict[key1]);
EXPECT_EQ(&member1, &dict.at(key1));
EXPECT_EQ(&member1, &dict[1]);
EXPECT_EQ(&member1, &dict.at(1));
member1 = nonempty_member1;
EXPECT_EQ(nonempty_member1, dict[key1]);
EXPECT_EQ(&dict[key1], &dict.at(key1));
EXPECT_EQ(&dict[key1], &dict[1]);
EXPECT_EQ(&dict[key1], &dict.at(1));
// at(StringPiece) and indexed accessors have const overloads.
const Dictionary& dict_ref = dict;
EXPECT_EQ(&member1, &dict_ref.at(key1));
EXPECT_EQ(&member1, &dict_ref[1]);
EXPECT_EQ(&member1, &dict_ref.at(1));
}
TEST(StructuredHeaderTest, UnserializableDictionary) {
static const struct UnserializableDictionary {
const char* name;
const Dictionary value;
} bad_dictionaries[] = {
{"Unserializable dict key", Dictionary{{{"ABC", {Token("abc"), {}}}}}},
{"Dictionary item is unserializable",
Dictionary{{{"abc", {Token("abc="), {}}}}}},
{"Param value is unserializable",
Dictionary{{{"abc", {Token("abc"), {{"a", Token("\n")}}}}}}},
{"Dictionary inner-list contains unserializable item",
Dictionary{
{{"abc",
{std::vector<ParameterizedItem>{{Token("abc="), {}}}, {}}}}}},
};
for (const auto& bad_dictionary : bad_dictionaries) {
SCOPED_TRACE(bad_dictionary.name);
absl::optional<std::string> serialization =
SerializeDictionary(bad_dictionary.value);
EXPECT_FALSE(serialization.has_value()) << *serialization;
}
}
} // namespace structured_headers
} // namespace quiche