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[fuzzer] Add a gtest-style test
Summary: Add one gtest-style test. Test Plan: run on bot Reviewers: samsonov Reviewed By: samsonov Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D7287 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227639 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -1,15 +1,17 @@
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# Disable the coverage instrumentation for the fuzzer itself.
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set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O2 -fsanitize-coverage=0")
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if( LLVM_USE_SANITIZE_COVERAGE )
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add_library(LLVMFuzzer STATIC
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EXCLUDE_FROM_ALL # Do not build if you are not building fuzzers.
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add_library(LLVMFuzzerNoMain OBJECT
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FuzzerCrossOver.cpp
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FuzzerIO.cpp
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FuzzerLoop.cpp
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FuzzerMain.cpp
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FuzzerMutate.cpp
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FuzzerUtil.cpp
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)
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add_library(LLVMFuzzer STATIC
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FuzzerMain.cpp
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$<TARGET_OBJECTS:LLVMFuzzerNoMain>
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)
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if( LLVM_INCLUDE_TESTS )
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add_subdirectory(test)
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@ -25,19 +25,36 @@ foreach(Test ${Tests})
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set(TestBinaries ${TestBinaries} LLVMFuzzer-${Test})
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endforeach()
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set_target_properties(${TestBinaries}
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PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
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)
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set(EXCLUDE_FROM_ALL TRUE)
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add_lit_testsuite(check-fuzzer "Running Fuzzer tests"
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${CMAKE_CURRENT_BINARY_DIR}
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DEPENDS ${TestBinaries}
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)
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set(EXCLUDE_FROM_ALL FALSE)
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configure_lit_site_cfg(
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${CMAKE_CURRENT_SOURCE_DIR}/lit.site.cfg.in
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${CMAKE_CURRENT_BINARY_DIR}/lit.site.cfg
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)
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configure_lit_site_cfg(
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${CMAKE_CURRENT_SOURCE_DIR}/unit/lit.site.cfg.in
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${CMAKE_CURRENT_BINARY_DIR}/unit/lit.site.cfg
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)
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include_directories(..)
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include_directories(${LLVM_MAIN_SRC_DIR}/utils/unittest/googletest/include)
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add_executable(LLVMFuzzer-Unittest
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FuzzerUnittest.cpp
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$<TARGET_OBJECTS:LLVMFuzzerNoMain>
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)
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target_link_libraries(LLVMFuzzer-Unittest
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gtest
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gtest_main
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)
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set(TestBinaries ${TestBinaries} LLVMFuzzer-Unittest)
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set_target_properties(${TestBinaries}
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PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
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)
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add_lit_testsuite(check-fuzzer "Running Fuzzer tests"
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${CMAKE_CURRENT_BINARY_DIR}
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DEPENDS ${TestBinaries}
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)
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62
lib/Fuzzer/test/FuzzerUnittest.cpp
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62
lib/Fuzzer/test/FuzzerUnittest.cpp
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@ -0,0 +1,62 @@
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#include "FuzzerInternal.h"
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#include "gtest/gtest.h"
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#include <set>
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// For now, have TestOneInput just to make it link.
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// Later we may want to make unittests that actually call TestOneInput.
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extern "C" void TestOneInput(const uint8_t *Data, size_t Size) {
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abort();
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}
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TEST(Fuzzer, CrossOver) {
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using namespace fuzzer;
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Unit A({0, 1, 2}), B({5, 6, 7});
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Unit C;
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Unit Expected[] = {
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{ 0 },
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{ 0, 1 },
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{ 0, 5 },
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{ 0, 1, 2 },
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{ 0, 1, 5 },
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{ 0, 5, 1 },
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{ 0, 5, 6 },
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{ 0, 1, 2, 5 },
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{ 0, 1, 5, 2 },
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{ 0, 1, 5, 6 },
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{ 0, 5, 1, 2 },
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{ 0, 5, 1, 6 },
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{ 0, 5, 6, 1 },
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{ 0, 5, 6, 7 },
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{ 0, 1, 2, 5, 6 },
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{ 0, 1, 5, 2, 6 },
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{ 0, 1, 5, 6, 2 },
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{ 0, 1, 5, 6, 7 },
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{ 0, 5, 1, 2, 6 },
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{ 0, 5, 1, 6, 2 },
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{ 0, 5, 1, 6, 7 },
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{ 0, 5, 6, 1, 2 },
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{ 0, 5, 6, 1, 7 },
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{ 0, 5, 6, 7, 1 },
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{ 0, 1, 2, 5, 6, 7 },
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{ 0, 1, 5, 2, 6, 7 },
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{ 0, 1, 5, 6, 2, 7 },
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{ 0, 1, 5, 6, 7, 2 },
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{ 0, 5, 1, 2, 6, 7 },
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{ 0, 5, 1, 6, 2, 7 },
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{ 0, 5, 1, 6, 7, 2 },
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{ 0, 5, 6, 1, 2, 7 },
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{ 0, 5, 6, 1, 7, 2 },
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{ 0, 5, 6, 7, 1, 2 }
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};
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for (size_t Len = 1; Len < 8; Len++) {
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std::set<Unit> FoundUnits, ExpectedUnitsWitThisLength;
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for (int Iter = 0; Iter < 3000; Iter++) {
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CrossOver(A, B, &C, Len);
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FoundUnits.insert(C);
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}
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for (const Unit &U : Expected)
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if (U.size() <= Len)
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ExpectedUnitsWitThisLength.insert(U);
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EXPECT_EQ(ExpectedUnitsWitThisLength, FoundUnits);
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}
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}
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@ -1,13 +0,0 @@
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#include "FuzzerInternal.h"
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int main() {
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using namespace fuzzer;
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Unit A({0, 1, 2, 3, 4}), B({5, 6, 7, 8, 9});
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Unit C;
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for (size_t Len = 1; Len < 15; Len++) {
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for (int Iter = 0; Iter < 1000; Iter++) {
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CrossOver(A, B, &C, Len);
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Print(C);
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}
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}
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}
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7
lib/Fuzzer/test/unit/lit.cfg
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7
lib/Fuzzer/test/unit/lit.cfg
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import lit.formats
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config.name = "LLVMFuzzer-Unittest"
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print config.test_exec_root
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config.test_format = lit.formats.GoogleTest(".", "Unittest")
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config.suffixes = []
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config.test_source_root = config.test_exec_root
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2
lib/Fuzzer/test/unit/lit.site.cfg.in
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2
lib/Fuzzer/test/unit/lit.site.cfg.in
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config.test_exec_root = "@CMAKE_CURRENT_BINARY_DIR@"
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lit_config.load_config(config, "@CMAKE_CURRENT_SOURCE_DIR@/unit/lit.cfg")
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