Squashed 'third_party/flatbuffers/' changes from e5f331db9..bc44fad35
bc44fad35 UnPackTo disable merge by default (#7527)
4fca4dc60 [TS/JS] Move TS tests to dedicated folder and deps upgrade (#7508)
036032373 Bump junit from 4.13 to 4.13.1 in /java (#7526)
89dfb43f3 Replace `bash JavaTest.sh` with `mvn test` (#7500)
c49aff4b6 enabled cpp17 tests in CI (#7524)
56e60223c prevent force_align attribute on enums (#7523)
89b1f5aa1 remove travis config (#7522)
b90159823 [Java][Flexbuffers] Add API to add nullables into the buffer. (#7521)
8cdc6a288 Install BuildFlatBuffers.cmake (#7519)
a67e35aff Moves all of the swift test code into tests/swift (#7509)
f124e41ae Updated Readme
4c954181c [Java][FlexBuffers] throwing exception for untyped fixed vectors (#7507)
7f7547737 [Android] Remove maven dependency of flatbuffers and use source folder (#7503)
a79d61ea8 Fixes issue with cocoapods failing to be published because of docc (#7505)
d465b39c3 [CMake]: fix breaking find_package change (#7499) (#7502)
c5a609dc2 [C#] Prepares for official Nuget release (#7496)
5634dc3d0 [ISSUE-6268] returns NaN insteadof nan (#7498)
37e37b8ca Updates cocoapods version (#7497)
8fd4534fb update android multidex setting (#7495)
d5427da52 Disable Android Build (#7494)
06c5c7ed0 FlatBuffers Version 2.0.8 (#7492)
b190ce11b Verifier Refinements (#7490)
bf5d23230 Namer applied to Typescript generator (#7488)
ce382d6dd [TS/JS] Add rollup and config to generate iife flatbuffers bundle (#7449)
41d9add7e C++: Add option to skip verifying nested flatbuffers (#7489)
6a8742754 [C++] support native_inline attribute for vector of tables (#7479)
694add668 Refactor test.cpp (#7487)
7edf8c908 Update scorecard to 1.1.2
b86387442 Fix typos (#7483)
e2eb5ee67 Include <array> head in stl_emulation.h (#7480)
994502b6d Version number in file package.json updated to 2.0.7 (#7476)
fa41e8367 [C++] Fixed crash when copying table with empty shared strings (#7477)
799cc8f7b Use type traits for specialization (#7475)
b7eb44147 Disable RTTI and rework use in idl_gen_ts.cpp (#7474)
8d01c5859 CMake project version detection made more robust (#7473)
237e8b71f Moved compiler warnings around (#7471)
eeb8fd60d Include builder.addOffset for vector of structs (#7470)
fef2ffc4d Use schema include name for keep-prefix (#7469)
8367664f1 Flatbuffers Version 2.0.7 (#7462)
d6f06c33f Reworked keep prefix (#7456)
627e8bf36 update grpc version (#7457)
883c42b7d disabling unpackto optimization (#7459)
7aae0af30 Remove old GRPC bash script and convert to python3 (#7454)
b057aa917 Grouped anonymous namespaces together, (#7455)
f1b26ff7f Change to GetTypeName (#7453)
9610a666b Generate SLSA signatures for Released zip files (#7450)
1e0f75a64 [WIP] speedup (#7452)
82b75407a Wrap types in namespace for --ts-flat-files and --gen-all (#7451)
f7c511957 Audit and fixups for GCC and Clang (#7212)
a66de58af Partial support for --ts-flat-files and --gen-all (#7446)
a3508f36d [Kotlin] Make sure namespace path exist for code generation (#7357)
137fec716 Stop using __has_trivial_copy on recent clang versions. (#7443)
214125e41 [C#] Rework how sorted vectors are looked up (#7441)
44a7dc999 Define minimum buffer size (#7440)
3cc2daa78 make_span overloads for pointer to vector (#7374) (#7435)
fa1174aa7 [TypeScript] Fix namespaceless schema generation (#7432)
83d4e2a10 Add checks to verifier (#7438)
8a09f3fb0 Fix FlexBuffers JS/TS bug https://github.com/google/flatbuffers/issues/6934 (#7434)
9dbe819ef Add flatc python tests to CI (#7437)
67c414958 Update TypeScriptTest.py to work better cross platform (#7436)
8b8c7dbdf Update gitingore to reflect name change (#7431)
2ee20a5f3 Remove auto including locale functions (#7430)
4be605604 [C++] Set StructDef::has_key property when deserializing from binary schema (#7386) (#7428)
fc5d86f1e [C++] Make template parameter in stl_emulation.h more explicit to avoid conflicts with cpprestsdk U macro (#7424)
9dce287ad Issue#6959 :Updated Automatically generated rust files. (#7425)
7798be3bb avoid zero-as-null-pointer warning (#7423)
966362e07 [C++] Vector of Tables equality (#7415)
a89c279ed [golang] Perform keyword escaping after case conversion (#7421)
a212b3c03 Turn of fail fast for C++ CI
9230f600d Remove stringop-overflow from error (#7422)
c79362156 [golang] Add support for text parsing with json struct tags (#7353)
ee2ced236 Moved TypeScriptTests to python script (#7411)
468c00a3f Rebased: grpc/compiler: Respect filename suffix and extension during code generation (#7414)
47c757f71 Add tests for flatc (#7405)
9a5ff8900 Add FLATBUFFERS_STRICT_MODE (#7408)
950444a34 [TS] Use TextEncoder and TextDecoder (#7400)
30d76198c Compilation issue msys2 #7399 (#7409)
cce3a66f0 Delete .travis directory
8d1cc6ac7 Revert "Compilation issue msys2 (#7403)" (#7407)
5b207639a Update readme.md
359e0f9d6 Revert "grpc/compiler: Respect filename suffix and extension during code generation (#7343)" (#7406)
ebbed0513 Delete cpp-linter.yml
aa395e5a5 (#7323) Rename CMake files according to project name (#7378)
32328075d Fix error msg format when generate GRPC failed (#7350)
97e89c5ac grpc/compiler: Respect filename suffix and extension during code generation (#7343)
5f6672be4 Fix Clang-Cl compile on Windows (#7308)
28e858c85 [TS/Bazel] Minor improvements to typescript.bzl (#7300)
987bebe67 [TS] fix incorrect reverse when writting array of structs (#7271)
ec0129369 Fix FlexBuffers Verifier tracking vectors reuse at wrong offset
50dd385b3 Add missing const (#7401)
da702cfd8 Compilation issue msys2 (#7403)
6e2791640 keep-prefix keeps relative pathing (#7394)
52fce5e53 fix(#7360): grpc used deprecated functions (#7361)
b7f13cd8e cpp_generator: comment out unused parameter to avoid warnings (#7381)
e42985e5a Updated Newtonsoft.Json to 13.0.1 (#7393)
0a8064637 Fix references to LICENSE file (#7377)
b9eea76a8 [Dart] Implement putBool to fix errors when serializing structs with bools (#7359)
1b9030015 Bump Newtonsoft.Json from 12.0.3 to 13.0.1 in /tests/FlatBuffers.Test (#7363)
83a43fc79 Reenable optional json (#7352)
5f0137602 Only include direct included filed (#7348)
9a1913a87 Revert "Implement optional scalars for JSON (#7322)" (#7351)
b4647beb8 Revert "Move reflection_ts_fbs into a separate directory (#7342)" (#7349)
d6060977a Remove asserting in verifier for flattests
987aa5b5e move -Wextra-semi to GCC 8.0+
42acdb63c [TS] Don't generate self-imports with --ts-flat-file (#7340)
0cc1aeb8c [golang] Create missing namespace directory structure (#7324) (#7325)
ba6c67170 [Kotlin] Remove download benchmark files dependency (#7314)
d2f33fc45 Disable Android on Linux CI build
0d1b72cbc [TS] fix ts import path issue (#7298)
9fce2fbf2 replace io/ioutil to os (#7281)
a18ea40d6 Implement optional scalars for JSON (#7322)
090caa280 Move reflection_ts_fbs into a separate directory (#7342)
49e1ea333 Implement optional scalars for Python (#7318)
11a198870 Started implementation for private flags in rust (#7269)
967df08b1 Adds full supposed for Wasm in the swift lib (#7328)
9aa08a429 Use keep case for Rust union discriminant type. (#7321)
9e8c758f5 Add explicit return types to lobster generated code (#7312)
74a25536b Add size check to fix out of bounds read risk (#7304)
12917af8a Update Rust docs page (#7296)
1ea2472f7 [swift] add had<ArrayName> property for arrays to check presence in a message (#7280)
0fe13cb28 Remove span ConstIterator/cbegin()/cend(). (#7295)
385dddc66 Namerkot (#7245)
750dde766 Make `flatc` generate Rust files not requiring `std` (#7273)
9917a168c [swift] Make swift module public (#7274)
76d3cca19 Rust: fix a name conflict when building with "no_std" feature (#7268)
c86e6d0e3 json inf parsing
d34dc32c2 fix include order
234d86c92 fixed off-by-one in parser
746c73b91 Add Annotations for Monster schema and example buffer
0bbfd4b2e fixes for annotator
716521953 Update readme.md (#7257)
a45f564cf [performance] Add aggressive systematic inlining in ByteBuffer and FlatBufferBuilder (#7253)
9d45a6403 more google merge fixes
ccfb4c20b Handle +/-inf in protos (#7256)
7bcd857b8 Specialize CreateVector with std::initializer_list (#7254)
23c8ab34c Swift update performance benchmark infrastructure (#7255)
70002dc5c various fixes for google merge
6e0e79f24 Add test for nested buffer verifier (#7252)
b856368d7 Turn off go modules temporary until we get a proper fix (#7251)
e37156a30 Keep the underlying storage capacity when clearing the FlatBufferBuilder. Gives a significant performance boost for serialisation of many small messages. (#7250)
a10b0e546 Java namer variable keep case (#7249)
275b73994 allow overriding FLATBUFFERS_MAX_ALIGNMENT
9d1ce9a10 Add parameter back to EndVector (#7246)
79afe6c3d Make Java namespaces keep case by default (#7243)
c6dbb2230 Add write permissions for labeller
18bacd3ea Expand test to make sure {}-initializers are properly understood by template. (#7242)
a2c913aec Add -Wnon-virtual-dtor
67b33b294 set workflows permissions to read-only (#7239)
7b5fd2bd0 [Kotlin] Fix key lookup returning null clashing with default value (#7237)
7181d7770 [Java] Fix key lookup returning null clashing with default value (#7236)
7f663b120 Allow CreateVectorOfStrings() to work with any string-type. (#7238)
173ebb694 Fixes a bug where the create function doesnt optional + required items (#7228)
d65823948 [Kotlin] Update gradle to 7.4.1 and simplify config files. (#7231)
ab4bf59e8 remove toascii (#7234)
eee44bbb2 disable cpp-linter (#7229)
a63fa51a1 Create cpp-linter.yml (#7208)
2049e5210 Adds a way to verify/exposes Entities ids (#7221)
832c618f5 Adds implementation flag for swift (#7202)
14615699f Started to migrate to target_compile_options (#7222)
20aad0c41 [C++] stl_emulation span::count_ is not const anymore (#7226) (#7227)
f083b33f2 code gen flexbuffer verifier (#7207)
bf17df346 [C++] generate sorted #include directives (#7213)
35281dedb Fix for [C++] flatc generates invalid Code in the default constructor for structs, when --cpp-field-case-style is used #7209 (#7211)
c9651b742 Add overloads for C# ByteBuffer/FlatBufferBuilder to allow adding vector blocks from ArraySegments or IntPtr (#7193)
26c3b3ada Update codeql.yml
da6e1b985 Update codeql.yml
ad27d751e Added Oss fuzz badge
0aab623cb Create codeql.yml
6a446bdd8 maximize parallel builds in CI (#7206)
21fb5cbbc Create scorecards.yml
0da6f9486 [C++] Static assert on Flatbuffers Version (#7203)
59e971308 reduce fuzzing time to 1 minute in CI
40866a892 fixed padding in struct for annotated binary (#7199)
b71d968fa Apply Namer prefix/suffix to other generators (#7197)
fac0d7be0 Apply Namer to Java. (#7194)
6c5603fd9 [C#] Fix collision of field name and type name (#7149)
2d21853a7 monster fuzzer fix for json default scalars
fec1a8d01 [swift] Add bazel configuration for Swift (#7195)
7fd857623 structured comments (#7192)
a4cb1599d Namerdart (#7187)
ae4ce7265 fuzzed binary annotator (#7188)
e2be0c0b0 Handle root offset and root table vtable invalidation (#7177)
2ad408697 [TS] Fix generation of struct members in object api (#7148)
4213d9105 VerifySizePrefixed (reflection::Schema) and GetAnySizePrefixedRoot added (#7181)
5a13f622c Correctly parse lists of enums in Dart generated code (#7157)
23a7e4e0b Adds no-includes flags to the swift code generator (#7182)
eeb49c275 Move flatbuffer_ts_library to typescript.bzl (#7183)
824763b31 Typo in flatc options (warning-as-errors instead of warnings-as-errors) (#7180)
d3aeee32b Annotated Flatbuffer Binary (#7174)
0bceba24d [Lua] Apply Namer to Lua (#7171)
b8c77d404 Make inclusion of header <optional> opt-out via macro (#7168)
8468eab83 Namersw (#7167)
2b2e8d4ae Nameroverloads (#7164)
b80b32bfa Use DESCRIPTION only if CMake version >= 3.9 (#7166)
Change-Id: Ic2681dabb1a798b7515e62753ee06aecb9933260
git-subtree-dir: third_party/flatbuffers
git-subtree-split: bc44fad35271e43fd7a79b4d691ac9e41708797f
Signed-off-by: Austin Schuh <austin.schuh@bluerivertech.com>
diff --git a/tests/fuzz_test.cpp b/tests/fuzz_test.cpp
new file mode 100644
index 0000000..66883fa
--- /dev/null
+++ b/tests/fuzz_test.cpp
@@ -0,0 +1,305 @@
+#include "fuzz_test.h"
+
+#include "flatbuffers/flatbuffers.h"
+#include "flatbuffers/idl.h"
+#include "test_assert.h"
+
+namespace flatbuffers {
+namespace tests {
+namespace {
+
+// Include simple random number generator to ensure results will be the
+// same cross platform.
+// http://en.wikipedia.org/wiki/Park%E2%80%93Miller_random_number_generator
+uint32_t lcg_seed = 48271;
+uint32_t lcg_rand() {
+ return lcg_seed =
+ (static_cast<uint64_t>(lcg_seed) * 279470273UL) % 4294967291UL;
+}
+void lcg_reset() { lcg_seed = 48271; }
+
+template<typename T>
+static void CompareTableFieldValue(flatbuffers::Table *table,
+ flatbuffers::voffset_t voffset, T val) {
+ T read = table->GetField(voffset, static_cast<T>(0));
+ TEST_EQ(read, val);
+}
+
+} // namespace
+
+// Low level stress/fuzz test: serialize/deserialize a variety of
+// different kinds of data in different combinations
+void FuzzTest1() {
+ // Values we're testing against: chosen to ensure no bits get chopped
+ // off anywhere, and also be different from eachother.
+ const uint8_t bool_val = true;
+ const int8_t char_val = -127; // 0x81
+ const uint8_t uchar_val = 0xFF;
+ const int16_t short_val = -32222; // 0x8222;
+ const uint16_t ushort_val = 0xFEEE;
+ const int32_t int_val = 0x83333333;
+ const uint32_t uint_val = 0xFDDDDDDD;
+ const int64_t long_val = 0x8444444444444444LL;
+ const uint64_t ulong_val = 0xFCCCCCCCCCCCCCCCULL;
+ const float float_val = 3.14159f;
+ const double double_val = 3.14159265359;
+
+ const int test_values_max = 11;
+ const flatbuffers::voffset_t fields_per_object = 4;
+ const int num_fuzz_objects = 10000; // The higher, the more thorough :)
+
+ flatbuffers::FlatBufferBuilder builder;
+
+ lcg_reset(); // Keep it deterministic.
+
+ flatbuffers::uoffset_t objects[num_fuzz_objects];
+
+ // Generate num_fuzz_objects random objects each consisting of
+ // fields_per_object fields, each of a random type.
+ for (int i = 0; i < num_fuzz_objects; i++) {
+ auto start = builder.StartTable();
+ for (flatbuffers::voffset_t f = 0; f < fields_per_object; f++) {
+ int choice = lcg_rand() % test_values_max;
+ auto off = flatbuffers::FieldIndexToOffset(f);
+ switch (choice) {
+ case 0: builder.AddElement<uint8_t>(off, bool_val, 0); break;
+ case 1: builder.AddElement<int8_t>(off, char_val, 0); break;
+ case 2: builder.AddElement<uint8_t>(off, uchar_val, 0); break;
+ case 3: builder.AddElement<int16_t>(off, short_val, 0); break;
+ case 4: builder.AddElement<uint16_t>(off, ushort_val, 0); break;
+ case 5: builder.AddElement<int32_t>(off, int_val, 0); break;
+ case 6: builder.AddElement<uint32_t>(off, uint_val, 0); break;
+ case 7: builder.AddElement<int64_t>(off, long_val, 0); break;
+ case 8: builder.AddElement<uint64_t>(off, ulong_val, 0); break;
+ case 9: builder.AddElement<float>(off, float_val, 0); break;
+ case 10: builder.AddElement<double>(off, double_val, 0); break;
+ }
+ }
+ objects[i] = builder.EndTable(start);
+ }
+ builder.PreAlign<flatbuffers::largest_scalar_t>(0); // Align whole buffer.
+
+ lcg_reset(); // Reset.
+
+ uint8_t *eob = builder.GetCurrentBufferPointer() + builder.GetSize();
+
+ // Test that all objects we generated are readable and return the
+ // expected values. We generate random objects in the same order
+ // so this is deterministic.
+ for (int i = 0; i < num_fuzz_objects; i++) {
+ auto table = reinterpret_cast<flatbuffers::Table *>(eob - objects[i]);
+ for (flatbuffers::voffset_t f = 0; f < fields_per_object; f++) {
+ int choice = lcg_rand() % test_values_max;
+ flatbuffers::voffset_t off = flatbuffers::FieldIndexToOffset(f);
+ switch (choice) {
+ case 0: CompareTableFieldValue(table, off, bool_val); break;
+ case 1: CompareTableFieldValue(table, off, char_val); break;
+ case 2: CompareTableFieldValue(table, off, uchar_val); break;
+ case 3: CompareTableFieldValue(table, off, short_val); break;
+ case 4: CompareTableFieldValue(table, off, ushort_val); break;
+ case 5: CompareTableFieldValue(table, off, int_val); break;
+ case 6: CompareTableFieldValue(table, off, uint_val); break;
+ case 7: CompareTableFieldValue(table, off, long_val); break;
+ case 8: CompareTableFieldValue(table, off, ulong_val); break;
+ case 9: CompareTableFieldValue(table, off, float_val); break;
+ case 10: CompareTableFieldValue(table, off, double_val); break;
+ }
+ }
+ }
+}
+
+// High level stress/fuzz test: generate a big schema and
+// matching json data in random combinations, then parse both,
+// generate json back from the binary, and compare with the original.
+void FuzzTest2() {
+ lcg_reset(); // Keep it deterministic.
+
+ const int num_definitions = 30;
+ const int num_struct_definitions = 5; // Subset of num_definitions.
+ const int fields_per_definition = 15;
+ const int instances_per_definition = 5;
+ const int deprecation_rate = 10; // 1 in deprecation_rate fields will
+ // be deprecated.
+
+ std::string schema = "namespace test;\n\n";
+
+ struct RndDef {
+ std::string instances[instances_per_definition];
+
+ // Since we're generating schema and corresponding data in tandem,
+ // this convenience function adds strings to both at once.
+ static void Add(RndDef (&definitions_l)[num_definitions],
+ std::string &schema_l, const int instances_per_definition_l,
+ const char *schema_add, const char *instance_add,
+ int definition) {
+ schema_l += schema_add;
+ for (int i = 0; i < instances_per_definition_l; i++)
+ definitions_l[definition].instances[i] += instance_add;
+ }
+ };
+
+ // clang-format off
+ #define AddToSchemaAndInstances(schema_add, instance_add) \
+ RndDef::Add(definitions, schema, instances_per_definition, \
+ schema_add, instance_add, definition)
+
+ #define Dummy() \
+ RndDef::Add(definitions, schema, instances_per_definition, \
+ "byte", "1", definition)
+ // clang-format on
+
+ RndDef definitions[num_definitions];
+
+ // We are going to generate num_definitions, the first
+ // num_struct_definitions will be structs, the rest tables. For each
+ // generate random fields, some of which may be struct/table types
+ // referring to previously generated structs/tables.
+ // Simultanenously, we generate instances_per_definition JSON data
+ // definitions, which will have identical structure to the schema
+ // being generated. We generate multiple instances such that when creating
+ // hierarchy, we get some variety by picking one randomly.
+ for (int definition = 0; definition < num_definitions; definition++) {
+ std::string definition_name = "D" + flatbuffers::NumToString(definition);
+
+ bool is_struct = definition < num_struct_definitions;
+
+ AddToSchemaAndInstances(
+ ((is_struct ? "struct " : "table ") + definition_name + " {\n").c_str(),
+ "{\n");
+
+ for (int field = 0; field < fields_per_definition; field++) {
+ const bool is_last_field = field == fields_per_definition - 1;
+
+ // Deprecate 1 in deprecation_rate fields. Only table fields can be
+ // deprecated.
+ // Don't deprecate the last field to avoid dangling commas in JSON.
+ const bool deprecated =
+ !is_struct && !is_last_field && (lcg_rand() % deprecation_rate == 0);
+
+ std::string field_name = "f" + flatbuffers::NumToString(field);
+ AddToSchemaAndInstances((" " + field_name + ":").c_str(),
+ deprecated ? "" : (field_name + ": ").c_str());
+ // Pick random type:
+ auto base_type = static_cast<flatbuffers::BaseType>(
+ lcg_rand() % (flatbuffers::BASE_TYPE_UNION + 1));
+ switch (base_type) {
+ case flatbuffers::BASE_TYPE_STRING:
+ if (is_struct) {
+ Dummy(); // No strings in structs.
+ } else {
+ AddToSchemaAndInstances("string", deprecated ? "" : "\"hi\"");
+ }
+ break;
+ case flatbuffers::BASE_TYPE_VECTOR:
+ if (is_struct) {
+ Dummy(); // No vectors in structs.
+ } else {
+ AddToSchemaAndInstances("[ubyte]",
+ deprecated ? "" : "[\n0,\n1,\n255\n]");
+ }
+ break;
+ case flatbuffers::BASE_TYPE_NONE:
+ case flatbuffers::BASE_TYPE_UTYPE:
+ case flatbuffers::BASE_TYPE_STRUCT:
+ case flatbuffers::BASE_TYPE_UNION:
+ if (definition) {
+ // Pick a random previous definition and random data instance of
+ // that definition.
+ int defref = lcg_rand() % definition;
+ int instance = lcg_rand() % instances_per_definition;
+ AddToSchemaAndInstances(
+ ("D" + flatbuffers::NumToString(defref)).c_str(),
+ deprecated ? ""
+ : definitions[defref].instances[instance].c_str());
+ } else {
+ // If this is the first definition, we have no definition we can
+ // refer to.
+ Dummy();
+ }
+ break;
+ case flatbuffers::BASE_TYPE_BOOL:
+ AddToSchemaAndInstances(
+ "bool", deprecated ? "" : (lcg_rand() % 2 ? "true" : "false"));
+ break;
+ case flatbuffers::BASE_TYPE_ARRAY:
+ if (!is_struct) {
+ AddToSchemaAndInstances(
+ "ubyte",
+ deprecated ? "" : "255"); // No fixed-length arrays in tables.
+ } else {
+ AddToSchemaAndInstances("[int:3]", deprecated ? "" : "[\n,\n,\n]");
+ }
+ break;
+ default:
+ // All the scalar types.
+ schema += flatbuffers::kTypeNames[base_type];
+
+ if (!deprecated) {
+ // We want each instance to use its own random value.
+ for (int inst = 0; inst < instances_per_definition; inst++)
+ definitions[definition].instances[inst] +=
+ flatbuffers::IsFloat(base_type)
+ ? flatbuffers::NumToString<double>(lcg_rand() % 128)
+ .c_str()
+ : flatbuffers::NumToString<int>(lcg_rand() % 128).c_str();
+ }
+ }
+ AddToSchemaAndInstances(deprecated ? "(deprecated);\n" : ";\n",
+ deprecated ? ""
+ : is_last_field ? "\n"
+ : ",\n");
+ }
+ AddToSchemaAndInstances("}\n\n", "}");
+ }
+
+ schema += "root_type D" + flatbuffers::NumToString(num_definitions - 1);
+ schema += ";\n";
+
+ flatbuffers::Parser parser;
+
+ // Will not compare against the original if we don't write defaults
+ parser.builder_.ForceDefaults(true);
+
+ // Parse the schema, parse the generated data, then generate text back
+ // from the binary and compare against the original.
+ TEST_EQ(parser.Parse(schema.c_str()), true);
+
+ const std::string &json =
+ definitions[num_definitions - 1].instances[0] + "\n";
+
+ TEST_EQ(parser.Parse(json.c_str()), true);
+
+ std::string jsongen;
+ parser.opts.indent_step = 0;
+ auto result =
+ GenerateText(parser, parser.builder_.GetBufferPointer(), &jsongen);
+ TEST_EQ(result, true);
+
+ if (jsongen != json) {
+ // These strings are larger than a megabyte, so we show the bytes around
+ // the first bytes that are different rather than the whole string.
+ size_t len = std::min(json.length(), jsongen.length());
+ for (size_t i = 0; i < len; i++) {
+ if (json[i] != jsongen[i]) {
+ i -= std::min(static_cast<size_t>(10), i); // show some context;
+ size_t end = std::min(len, i + 20);
+ for (; i < end; i++)
+ TEST_OUTPUT_LINE("at %d: found \"%c\", expected \"%c\"\n",
+ static_cast<int>(i), jsongen[i], json[i]);
+ break;
+ }
+ }
+ TEST_NOTNULL(nullptr); //-V501 (this comment suppresses CWE-570 warning)
+ }
+
+ // clang-format off
+ #ifdef FLATBUFFERS_TEST_VERBOSE
+ TEST_OUTPUT_LINE("%dk schema tested with %dk of json\n",
+ static_cast<int>(schema.length() / 1024),
+ static_cast<int>(json.length() / 1024));
+ #endif
+ // clang-format on
+}
+
+} // namespace tests
+} // namespace flatbuffers
\ No newline at end of file