Function TEST

test/fuzz/fuzzerutil_test.cpp:23–75

namespace {

TEST(FuzzerUtilMaybeFindBlockTest, BasicTest) {
  std::string shader = R"(
               OpCapability Shader
          %1 = OpExtInstImport "GLSL.std.450"
               OpMemoryModel Logical GLSL450
               OpEntryPoint Fragment %4 "main"
               OpExecutionMode %4 OriginUpperLeft
               OpSource ESSL 310
               OpDecorate %8 RelaxedPrecision
          %2 = OpTypeVoid
          %3 = OpTypeFunction %2
          %6 = OpTypeInt 32 1
          %7 = OpTypePointer Function %6
          %9 = OpConstant %6 1
         %10 = OpConstant %6 2
          %4 = OpFunction %2 None %3
          %5 = OpLabel
          %8 = OpVariable %7 Function
               OpBranch %11
         %11 = OpLabel
               OpStore %8 %9
               OpBranch %12
         %12 = OpLabel
               OpStore %8 %10
               OpReturn
               OpFunctionEnd
  )";

  const auto env = SPV_ENV_UNIVERSAL_1_4;
  const auto consumer = nullptr;
  const std::unique_ptr<opt::IRContext> context =
      BuildModule(env, consumer, shader, kFuzzAssembleOption);
  spvtools::ValidatorOptions validator_options;
  ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(context.get(), validator_options,
                                               kConsoleMessageConsumer));

  // Only blocks with id 11 and 12 can be found.
  // Should return nullptr when id is not a label or id was not found.
  uint32_t block_id1 = 11;
  uint32_t block_id2 = 12;
  uint32_t block_id3 = 13;
  uint32_t block_id4 = 8;

  opt::IRContext* ir_context = context.get();
  // Block with id 11 should be found.
  ASSERT_TRUE(fuzzerutil::MaybeFindBlock(ir_context, block_id1) != nullptr);
  // Block with id 12 should be found.
  ASSERT_TRUE(fuzzerutil::MaybeFindBlock(ir_context, block_id2) != nullptr);
  // Block with id 13 cannot be found.
  ASSERT_FALSE(fuzzerutil::MaybeFindBlock(ir_context, block_id3) != nullptr);
  // Block with id 8 exists but don't not of type OpLabel.
  ASSERT_FALSE(fuzzerutil::MaybeFindBlock(ir_context, block_id4) != nullptr);
}

TEST(FuzzerutilTest, FuzzerUtilMaybeGetBoolConstantTest) {
  std::string shader = R"(