Export of internal Abseil changes.
-- eca34da4ccb7bb6a580f1364dff9ca053418fa3b by Abseil Team <absl-team@google.com>: Internal change. PiperOrigin-RevId: 214305433 -- 35393bdd21a87c4286f945fd34dda93afc4e0cd6 by Abseil Team <absl-team@google.com>: Move some implementation details of string_view around to facilitate compiling on NVCC. Abseil does not officially support NVCC as a reminder. PiperOrigin-RevId: 214184876 -- 61846cab9ab9476a4676ecade7173f68978cd038 by Jorg Brown <jorg@google.com>: Move the initialization values for constants back to their declaration. PiperOrigin-RevId: 214135927 -- 7ac7df6c5f78f2faf419268c04618b936cb26065 by Abseil Team <absl-team@google.com>: Performance improvements on format parser. PiperOrigin-RevId: 214032366 -- 90b4c0cf20e9feaa257a7ece40adaf7db40a60a7 by Xiaoyi Zhang <zhangxy@google.com>: Add static_assert check to absl::visit to make sure all overloads of the visitor return the same type, as required by the C++ standard. PiperOrigin-RevId: 213677001 -- 787995342101b4c181291cde9ecea3048536e4bd by Abseil Team <absl-team@google.com>: Update comment to indicate finite durations are less than InfiniteDuration. PiperOrigin-RevId: 213660328 -- d78f0dce7cc31218807e96d93b9e8513b6c80b24 by Jon Cohen <cohenjon@google.com>: s/invariant/contract in the exceptions safety testing framework. This is a better term as these can be type invariants or function post conditions. They also are very similar ground as to what is covered by c++20 Contracts (and could even be replaced by them. PiperOrigin-RevId: 213631019 -- 0b3ff1a640de9a7391a6c233568802cf86245b0e by Abseil Team <absl-team@google.com>: Add noinline attribute for GetStackTrace/GetStackFrames/... so the skipped frames will not change because of inlining difference. PiperOrigin-RevId: 213009637 GitOrigin-RevId: eca34da4ccb7bb6a580f1364dff9ca053418fa3b Change-Id: Iff1022fd24e440fcbdf3c4ab2a915ca8954daa31
This commit is contained in:
Abseil Team
Derek Mauro
parent
8ff1374008
commit
e01d95528e
15 changed files with 251 additions and 223 deletions
|
|
@ -548,21 +548,21 @@ TEST(ExceptionSafetyTesterTest, IncompleteTypesAreNotTestable) {
|
|||
// Test that providing operation and inveriants still does not allow for the
|
||||
// the invocation of .Test() and .Test(op) because it lacks a factory
|
||||
auto without_fac =
|
||||
testing::MakeExceptionSafetyTester().WithOperation(op).WithInvariants(
|
||||
testing::MakeExceptionSafetyTester().WithOperation(op).WithContracts(
|
||||
inv, testing::strong_guarantee);
|
||||
EXPECT_FALSE(HasNullaryTest(without_fac));
|
||||
EXPECT_FALSE(HasUnaryTest(without_fac));
|
||||
|
||||
// Test that providing invariants and factory allows the invocation of
|
||||
// Test that providing contracts and factory allows the invocation of
|
||||
// .Test(op) but does not allow for .Test() because it lacks an operation
|
||||
auto without_op = testing::MakeExceptionSafetyTester()
|
||||
.WithInvariants(inv, testing::strong_guarantee)
|
||||
.WithContracts(inv, testing::strong_guarantee)
|
||||
.WithFactory(fac);
|
||||
EXPECT_FALSE(HasNullaryTest(without_op));
|
||||
EXPECT_TRUE(HasUnaryTest(without_op));
|
||||
|
||||
// Test that providing operation and factory still does not allow for the
|
||||
// the invocation of .Test() and .Test(op) because it lacks invariants
|
||||
// the invocation of .Test() and .Test(op) because it lacks contracts
|
||||
auto without_inv =
|
||||
testing::MakeExceptionSafetyTester().WithOperation(op).WithFactory(fac);
|
||||
EXPECT_FALSE(HasNullaryTest(without_inv));
|
||||
|
|
@ -577,7 +577,7 @@ std::unique_ptr<ExampleStruct> ExampleFunctionFactory() {
|
|||
|
||||
void ExampleFunctionOperation(ExampleStruct*) {}
|
||||
|
||||
testing::AssertionResult ExampleFunctionInvariant(ExampleStruct*) {
|
||||
testing::AssertionResult ExampleFunctionContract(ExampleStruct*) {
|
||||
return testing::AssertionSuccess();
|
||||
}
|
||||
|
||||
|
|
@ -593,16 +593,16 @@ struct {
|
|||
|
||||
struct {
|
||||
testing::AssertionResult operator()(ExampleStruct* example_struct) const {
|
||||
return ExampleFunctionInvariant(example_struct);
|
||||
return ExampleFunctionContract(example_struct);
|
||||
}
|
||||
} example_struct_invariant;
|
||||
} example_struct_contract;
|
||||
|
||||
auto example_lambda_factory = []() { return ExampleFunctionFactory(); };
|
||||
|
||||
auto example_lambda_operation = [](ExampleStruct*) {};
|
||||
|
||||
auto example_lambda_invariant = [](ExampleStruct* example_struct) {
|
||||
return ExampleFunctionInvariant(example_struct);
|
||||
auto example_lambda_contract = [](ExampleStruct* example_struct) {
|
||||
return ExampleFunctionContract(example_struct);
|
||||
};
|
||||
|
||||
// Testing that function references, pointers, structs with operator() and
|
||||
|
|
@ -612,28 +612,28 @@ TEST(ExceptionSafetyTesterTest, MixedFunctionTypes) {
|
|||
EXPECT_TRUE(testing::MakeExceptionSafetyTester()
|
||||
.WithFactory(ExampleFunctionFactory)
|
||||
.WithOperation(ExampleFunctionOperation)
|
||||
.WithInvariants(ExampleFunctionInvariant)
|
||||
.WithContracts(ExampleFunctionContract)
|
||||
.Test());
|
||||
|
||||
// function pointer
|
||||
EXPECT_TRUE(testing::MakeExceptionSafetyTester()
|
||||
.WithFactory(&ExampleFunctionFactory)
|
||||
.WithOperation(&ExampleFunctionOperation)
|
||||
.WithInvariants(&ExampleFunctionInvariant)
|
||||
.WithContracts(&ExampleFunctionContract)
|
||||
.Test());
|
||||
|
||||
// struct
|
||||
EXPECT_TRUE(testing::MakeExceptionSafetyTester()
|
||||
.WithFactory(example_struct_factory)
|
||||
.WithOperation(example_struct_operation)
|
||||
.WithInvariants(example_struct_invariant)
|
||||
.WithContracts(example_struct_contract)
|
||||
.Test());
|
||||
|
||||
// lambda
|
||||
EXPECT_TRUE(testing::MakeExceptionSafetyTester()
|
||||
.WithFactory(example_lambda_factory)
|
||||
.WithOperation(example_lambda_operation)
|
||||
.WithInvariants(example_lambda_invariant)
|
||||
.WithContracts(example_lambda_contract)
|
||||
.Test());
|
||||
}
|
||||
|
||||
|
|
@ -658,9 +658,9 @@ struct {
|
|||
} invoker;
|
||||
|
||||
auto tester =
|
||||
testing::MakeExceptionSafetyTester().WithOperation(invoker).WithInvariants(
|
||||
testing::MakeExceptionSafetyTester().WithOperation(invoker).WithContracts(
|
||||
CheckNonNegativeInvariants);
|
||||
auto strong_tester = tester.WithInvariants(testing::strong_guarantee);
|
||||
auto strong_tester = tester.WithContracts(testing::strong_guarantee);
|
||||
|
||||
struct FailsBasicGuarantee : public NonNegative {
|
||||
void operator()() {
|
||||
|
|
@ -690,7 +690,7 @@ TEST(ExceptionCheckTest, StrongGuaranteeFailure) {
|
|||
EXPECT_FALSE(strong_tester.WithInitialValue(FollowsBasicGuarantee{}).Test());
|
||||
}
|
||||
|
||||
struct BasicGuaranteeWithExtraInvariants : public NonNegative {
|
||||
struct BasicGuaranteeWithExtraContracts : public NonNegative {
|
||||
// After operator(), i is incremented. If operator() throws, i is set to 9999
|
||||
void operator()() {
|
||||
int old_i = i;
|
||||
|
|
@ -701,21 +701,21 @@ struct BasicGuaranteeWithExtraInvariants : public NonNegative {
|
|||
|
||||
static constexpr int kExceptionSentinel = 9999;
|
||||
};
|
||||
constexpr int BasicGuaranteeWithExtraInvariants::kExceptionSentinel;
|
||||
constexpr int BasicGuaranteeWithExtraContracts::kExceptionSentinel;
|
||||
|
||||
TEST(ExceptionCheckTest, BasicGuaranteeWithExtraInvariants) {
|
||||
TEST(ExceptionCheckTest, BasicGuaranteeWithExtraContracts) {
|
||||
auto tester_with_val =
|
||||
tester.WithInitialValue(BasicGuaranteeWithExtraInvariants{});
|
||||
tester.WithInitialValue(BasicGuaranteeWithExtraContracts{});
|
||||
EXPECT_TRUE(tester_with_val.Test());
|
||||
EXPECT_TRUE(
|
||||
tester_with_val
|
||||
.WithInvariants([](BasicGuaranteeWithExtraInvariants* o) {
|
||||
if (o->i == BasicGuaranteeWithExtraInvariants::kExceptionSentinel) {
|
||||
.WithContracts([](BasicGuaranteeWithExtraContracts* o) {
|
||||
if (o->i == BasicGuaranteeWithExtraContracts::kExceptionSentinel) {
|
||||
return testing::AssertionSuccess();
|
||||
}
|
||||
return testing::AssertionFailure()
|
||||
<< "i should be "
|
||||
<< BasicGuaranteeWithExtraInvariants::kExceptionSentinel
|
||||
<< BasicGuaranteeWithExtraContracts::kExceptionSentinel
|
||||
<< ", but is " << o->i;
|
||||
})
|
||||
.Test());
|
||||
|
|
@ -740,7 +740,7 @@ struct HasReset : public NonNegative {
|
|||
void reset() { i = 0; }
|
||||
};
|
||||
|
||||
testing::AssertionResult CheckHasResetInvariants(HasReset* h) {
|
||||
testing::AssertionResult CheckHasResetContracts(HasReset* h) {
|
||||
h->reset();
|
||||
return testing::AssertionResult(h->i == 0);
|
||||
}
|
||||
|
|
@ -759,14 +759,14 @@ TEST(ExceptionCheckTest, ModifyingChecker) {
|
|||
};
|
||||
|
||||
EXPECT_FALSE(tester.WithInitialValue(FollowsBasicGuarantee{})
|
||||
.WithInvariants(set_to_1000, is_1000)
|
||||
.WithContracts(set_to_1000, is_1000)
|
||||
.Test());
|
||||
EXPECT_TRUE(strong_tester.WithInitialValue(FollowsStrongGuarantee{})
|
||||
.WithInvariants(increment)
|
||||
.WithContracts(increment)
|
||||
.Test());
|
||||
EXPECT_TRUE(testing::MakeExceptionSafetyTester()
|
||||
.WithInitialValue(HasReset{})
|
||||
.WithInvariants(CheckHasResetInvariants)
|
||||
.WithContracts(CheckHasResetContracts)
|
||||
.Test(invoker));
|
||||
}
|
||||
|
||||
|
|
@ -799,7 +799,7 @@ TEST(ExceptionCheckTest, NonEqualityComparable) {
|
|||
return testing::AssertionResult(nec->i == NonEqualityComparable().i);
|
||||
};
|
||||
auto strong_nec_tester = tester.WithInitialValue(NonEqualityComparable{})
|
||||
.WithInvariants(nec_is_strong);
|
||||
.WithContracts(nec_is_strong);
|
||||
|
||||
EXPECT_TRUE(strong_nec_tester.Test());
|
||||
EXPECT_FALSE(strong_nec_tester.Test(
|
||||
|
|
@ -833,14 +833,14 @@ struct {
|
|||
testing::AssertionResult operator()(ExhaustivenessTester<T>*) const {
|
||||
return testing::AssertionSuccess();
|
||||
}
|
||||
} CheckExhaustivenessTesterInvariants;
|
||||
} CheckExhaustivenessTesterContracts;
|
||||
|
||||
template <typename T>
|
||||
unsigned char ExhaustivenessTester<T>::successes = 0;
|
||||
|
||||
TEST(ExceptionCheckTest, Exhaustiveness) {
|
||||
auto exhaust_tester = testing::MakeExceptionSafetyTester()
|
||||
.WithInvariants(CheckExhaustivenessTesterInvariants)
|
||||
.WithContracts(CheckExhaustivenessTesterContracts)
|
||||
.WithOperation(invoker);
|
||||
|
||||
EXPECT_TRUE(
|
||||
|
|
@ -849,7 +849,7 @@ TEST(ExceptionCheckTest, Exhaustiveness) {
|
|||
|
||||
EXPECT_TRUE(
|
||||
exhaust_tester.WithInitialValue(ExhaustivenessTester<ThrowingValue<>>{})
|
||||
.WithInvariants(testing::strong_guarantee)
|
||||
.WithContracts(testing::strong_guarantee)
|
||||
.Test());
|
||||
EXPECT_EQ(ExhaustivenessTester<ThrowingValue<>>::successes, 0xF);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -191,19 +191,19 @@ class TrackedObject {
|
|||
~TrackedObject() noexcept { ConstructorTracker::ObjectDestructed(this); }
|
||||
};
|
||||
|
||||
template <typename Factory, typename Operation, typename Invariant>
|
||||
absl::optional<testing::AssertionResult> TestSingleInvariantAtCountdownImpl(
|
||||
template <typename Factory, typename Operation, typename Contract>
|
||||
absl::optional<testing::AssertionResult> TestSingleContractAtCountdownImpl(
|
||||
const Factory& factory, const Operation& operation, int count,
|
||||
const Invariant& invariant) {
|
||||
const Contract& contract) {
|
||||
auto t_ptr = factory();
|
||||
absl::optional<testing::AssertionResult> current_res;
|
||||
SetCountdown(count);
|
||||
try {
|
||||
operation(t_ptr.get());
|
||||
} catch (const exceptions_internal::TestException& e) {
|
||||
current_res.emplace(invariant(t_ptr.get()));
|
||||
current_res.emplace(contract(t_ptr.get()));
|
||||
if (!current_res.value()) {
|
||||
*current_res << e.what() << " failed invariant check";
|
||||
*current_res << e.what() << " failed contract check";
|
||||
}
|
||||
}
|
||||
UnsetCountdown();
|
||||
|
|
@ -211,22 +211,22 @@ absl::optional<testing::AssertionResult> TestSingleInvariantAtCountdownImpl(
|
|||
}
|
||||
|
||||
template <typename Factory, typename Operation>
|
||||
absl::optional<testing::AssertionResult> TestSingleInvariantAtCountdownImpl(
|
||||
absl::optional<testing::AssertionResult> TestSingleContractAtCountdownImpl(
|
||||
const Factory& factory, const Operation& operation, int count,
|
||||
StrongGuaranteeTagType) {
|
||||
using TPtr = typename decltype(factory())::pointer;
|
||||
auto t_is_strong = [&](TPtr t) { return *t == *factory(); };
|
||||
return TestSingleInvariantAtCountdownImpl(factory, operation, count,
|
||||
t_is_strong);
|
||||
return TestSingleContractAtCountdownImpl(factory, operation, count,
|
||||
t_is_strong);
|
||||
}
|
||||
|
||||
template <typename Factory, typename Operation, typename Invariant>
|
||||
int TestSingleInvariantAtCountdown(
|
||||
template <typename Factory, typename Operation, typename Contract>
|
||||
int TestSingleContractAtCountdown(
|
||||
const Factory& factory, const Operation& operation, int count,
|
||||
const Invariant& invariant,
|
||||
const Contract& contract,
|
||||
absl::optional<testing::AssertionResult>* reduced_res) {
|
||||
// If reduced_res is empty, it means the current call to
|
||||
// TestSingleInvariantAtCountdown(...) is the first test being run so we do
|
||||
// TestSingleContractAtCountdown(...) is the first test being run so we do
|
||||
// want to run it. Alternatively, if it's not empty (meaning a previous test
|
||||
// has run) we want to check if it passed. If the previous test did pass, we
|
||||
// want to contine running tests so we do want to run the current one. If it
|
||||
|
|
@ -234,22 +234,22 @@ int TestSingleInvariantAtCountdown(
|
|||
// output. If that's the case, we do not run the current test and instead we
|
||||
// simply return.
|
||||
if (!reduced_res->has_value() || reduced_res->value()) {
|
||||
*reduced_res = TestSingleInvariantAtCountdownImpl(factory, operation, count,
|
||||
invariant);
|
||||
*reduced_res =
|
||||
TestSingleContractAtCountdownImpl(factory, operation, count, contract);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
template <typename Factory, typename Operation, typename... Invariants>
|
||||
inline absl::optional<testing::AssertionResult> TestAllInvariantsAtCountdown(
|
||||
template <typename Factory, typename Operation, typename... Contracts>
|
||||
inline absl::optional<testing::AssertionResult> TestAllContractsAtCountdown(
|
||||
const Factory& factory, const Operation& operation, int count,
|
||||
const Invariants&... invariants) {
|
||||
const Contracts&... contracts) {
|
||||
absl::optional<testing::AssertionResult> reduced_res;
|
||||
|
||||
// Run each checker, short circuiting after the first failure
|
||||
int dummy[] = {
|
||||
0, (TestSingleInvariantAtCountdown(factory, operation, count, invariants,
|
||||
&reduced_res))...};
|
||||
0, (TestSingleContractAtCountdown(factory, operation, count, contracts,
|
||||
&reduced_res))...};
|
||||
static_cast<void>(dummy);
|
||||
return reduced_res;
|
||||
}
|
||||
|
|
@ -884,15 +884,15 @@ class DefaultFactory {
|
|||
T t_;
|
||||
};
|
||||
|
||||
template <size_t LazyInvariantsCount, typename LazyFactory,
|
||||
template <size_t LazyContractsCount, typename LazyFactory,
|
||||
typename LazyOperation>
|
||||
using EnableIfTestable = typename absl::enable_if_t<
|
||||
LazyInvariantsCount != 0 &&
|
||||
LazyContractsCount != 0 &&
|
||||
!std::is_same<LazyFactory, UninitializedT>::value &&
|
||||
!std::is_same<LazyOperation, UninitializedT>::value>;
|
||||
|
||||
template <typename Factory = UninitializedT,
|
||||
typename Operation = UninitializedT, typename... Invariants>
|
||||
typename Operation = UninitializedT, typename... Contracts>
|
||||
class ExceptionSafetyTester;
|
||||
|
||||
} // namespace exceptions_internal
|
||||
|
|
@ -903,7 +903,7 @@ namespace exceptions_internal {
|
|||
|
||||
/*
|
||||
* Builds a tester object that tests if performing a operation on a T follows
|
||||
* exception safety guarantees. Verification is done via invariant assertion
|
||||
* exception safety guarantees. Verification is done via contract assertion
|
||||
* callbacks applied to T instances post-throw.
|
||||
*
|
||||
* Template parameters for ExceptionSafetyTester:
|
||||
|
|
@ -921,18 +921,18 @@ namespace exceptions_internal {
|
|||
* fresh T instance so it's free to modify and destroy the T instances as it
|
||||
* pleases.
|
||||
*
|
||||
* - Invariants...: The invariant assertion callback objects (passed in via
|
||||
* tester.WithInvariants(...)) must be invocable with the signature
|
||||
* - Contracts...: The contract assertion callback objects (passed in via
|
||||
* tester.WithContracts(...)) must be invocable with the signature
|
||||
* `testing::AssertionResult operator()(T*) const` where T is the type being
|
||||
* tested. Invariant assertion callbacks are provided T instances post-throw.
|
||||
* They must return testing::AssertionSuccess when the type invariants of the
|
||||
* provided T instance hold. If the type invariants of the T instance do not
|
||||
* tested. Contract assertion callbacks are provided T instances post-throw.
|
||||
* They must return testing::AssertionSuccess when the type contracts of the
|
||||
* provided T instance hold. If the type contracts of the T instance do not
|
||||
* hold, they must return testing::AssertionFailure. Execution order of
|
||||
* Invariants... is unspecified. They will each individually get a fresh T
|
||||
* Contracts... is unspecified. They will each individually get a fresh T
|
||||
* instance so they are free to modify and destroy the T instances as they
|
||||
* please.
|
||||
*/
|
||||
template <typename Factory, typename Operation, typename... Invariants>
|
||||
template <typename Factory, typename Operation, typename... Contracts>
|
||||
class ExceptionSafetyTester {
|
||||
public:
|
||||
/*
|
||||
|
|
@ -948,7 +948,7 @@ class ExceptionSafetyTester {
|
|||
* tester.WithFactory(...).
|
||||
*/
|
||||
template <typename T>
|
||||
ExceptionSafetyTester<DefaultFactory<T>, Operation, Invariants...>
|
||||
ExceptionSafetyTester<DefaultFactory<T>, Operation, Contracts...>
|
||||
WithInitialValue(const T& t) const {
|
||||
return WithFactory(DefaultFactory<T>(t));
|
||||
}
|
||||
|
|
@ -961,9 +961,9 @@ class ExceptionSafetyTester {
|
|||
* method tester.WithInitialValue(...).
|
||||
*/
|
||||
template <typename NewFactory>
|
||||
ExceptionSafetyTester<absl::decay_t<NewFactory>, Operation, Invariants...>
|
||||
ExceptionSafetyTester<absl::decay_t<NewFactory>, Operation, Contracts...>
|
||||
WithFactory(const NewFactory& new_factory) const {
|
||||
return {new_factory, operation_, invariants_};
|
||||
return {new_factory, operation_, contracts_};
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
@ -972,39 +972,39 @@ class ExceptionSafetyTester {
|
|||
* tester.
|
||||
*/
|
||||
template <typename NewOperation>
|
||||
ExceptionSafetyTester<Factory, absl::decay_t<NewOperation>, Invariants...>
|
||||
ExceptionSafetyTester<Factory, absl::decay_t<NewOperation>, Contracts...>
|
||||
WithOperation(const NewOperation& new_operation) const {
|
||||
return {factory_, new_operation, invariants_};
|
||||
return {factory_, new_operation, contracts_};
|
||||
}
|
||||
|
||||
/*
|
||||
* Returns a new ExceptionSafetyTester with the provided MoreInvariants...
|
||||
* combined with the Invariants... that were already included in the instance
|
||||
* on which the method was called. Invariants... cannot be removed or replaced
|
||||
* Returns a new ExceptionSafetyTester with the provided MoreContracts...
|
||||
* combined with the Contracts... that were already included in the instance
|
||||
* on which the method was called. Contracts... cannot be removed or replaced
|
||||
* once added to an ExceptionSafetyTester instance. A fresh object must be
|
||||
* created in order to get an empty Invariants... list.
|
||||
* created in order to get an empty Contracts... list.
|
||||
*
|
||||
* In addition to passing in custom invariant assertion callbacks, this method
|
||||
* In addition to passing in custom contract assertion callbacks, this method
|
||||
* accepts `testing::strong_guarantee` as an argument which checks T instances
|
||||
* post-throw against freshly created T instances via operator== to verify
|
||||
* that any state changes made during the execution of the operation were
|
||||
* properly rolled back.
|
||||
*/
|
||||
template <typename... MoreInvariants>
|
||||
ExceptionSafetyTester<Factory, Operation, Invariants...,
|
||||
absl::decay_t<MoreInvariants>...>
|
||||
WithInvariants(const MoreInvariants&... more_invariants) const {
|
||||
return {factory_, operation_,
|
||||
std::tuple_cat(invariants_,
|
||||
std::tuple<absl::decay_t<MoreInvariants>...>(
|
||||
more_invariants...))};
|
||||
template <typename... MoreContracts>
|
||||
ExceptionSafetyTester<Factory, Operation, Contracts...,
|
||||
absl::decay_t<MoreContracts>...>
|
||||
WithContracts(const MoreContracts&... more_contracts) const {
|
||||
return {
|
||||
factory_, operation_,
|
||||
std::tuple_cat(contracts_, std::tuple<absl::decay_t<MoreContracts>...>(
|
||||
more_contracts...))};
|
||||
}
|
||||
|
||||
/*
|
||||
* Returns a testing::AssertionResult that is the reduced result of the
|
||||
* exception safety algorithm. The algorithm short circuits and returns
|
||||
* AssertionFailure after the first invariant callback returns an
|
||||
* AssertionFailure. Otherwise, if all invariant callbacks return an
|
||||
* AssertionFailure after the first contract callback returns an
|
||||
* AssertionFailure. Otherwise, if all contract callbacks return an
|
||||
* AssertionSuccess, the reduced result is AssertionSuccess.
|
||||
*
|
||||
* The passed-in testable operation will not be saved in a new tester instance
|
||||
|
|
@ -1013,33 +1013,33 @@ class ExceptionSafetyTester {
|
|||
*
|
||||
* Preconditions for tester.Test(const NewOperation& new_operation):
|
||||
*
|
||||
* - May only be called after at least one invariant assertion callback and a
|
||||
* - May only be called after at least one contract assertion callback and a
|
||||
* factory or initial value have been provided.
|
||||
*/
|
||||
template <
|
||||
typename NewOperation,
|
||||
typename = EnableIfTestable<sizeof...(Invariants), Factory, NewOperation>>
|
||||
typename = EnableIfTestable<sizeof...(Contracts), Factory, NewOperation>>
|
||||
testing::AssertionResult Test(const NewOperation& new_operation) const {
|
||||
return TestImpl(new_operation, absl::index_sequence_for<Invariants...>());
|
||||
return TestImpl(new_operation, absl::index_sequence_for<Contracts...>());
|
||||
}
|
||||
|
||||
/*
|
||||
* Returns a testing::AssertionResult that is the reduced result of the
|
||||
* exception safety algorithm. The algorithm short circuits and returns
|
||||
* AssertionFailure after the first invariant callback returns an
|
||||
* AssertionFailure. Otherwise, if all invariant callbacks return an
|
||||
* AssertionFailure after the first contract callback returns an
|
||||
* AssertionFailure. Otherwise, if all contract callbacks return an
|
||||
* AssertionSuccess, the reduced result is AssertionSuccess.
|
||||
*
|
||||
* Preconditions for tester.Test():
|
||||
*
|
||||
* - May only be called after at least one invariant assertion callback, a
|
||||
* - May only be called after at least one contract assertion callback, a
|
||||
* factory or initial value and a testable operation have been provided.
|
||||
*/
|
||||
template <typename LazyOperation = Operation,
|
||||
typename =
|
||||
EnableIfTestable<sizeof...(Invariants), Factory, LazyOperation>>
|
||||
template <
|
||||
typename LazyOperation = Operation,
|
||||
typename = EnableIfTestable<sizeof...(Contracts), Factory, LazyOperation>>
|
||||
testing::AssertionResult Test() const {
|
||||
return TestImpl(operation_, absl::index_sequence_for<Invariants...>());
|
||||
return TestImpl(operation_, absl::index_sequence_for<Contracts...>());
|
||||
}
|
||||
|
||||
private:
|
||||
|
|
@ -1051,8 +1051,8 @@ class ExceptionSafetyTester {
|
|||
ExceptionSafetyTester() {}
|
||||
|
||||
ExceptionSafetyTester(const Factory& f, const Operation& o,
|
||||
const std::tuple<Invariants...>& i)
|
||||
: factory_(f), operation_(o), invariants_(i) {}
|
||||
const std::tuple<Contracts...>& i)
|
||||
: factory_(f), operation_(o), contracts_(i) {}
|
||||
|
||||
template <typename SelectedOperation, size_t... Indices>
|
||||
testing::AssertionResult TestImpl(const SelectedOperation& selected_operation,
|
||||
|
|
@ -1064,28 +1064,28 @@ class ExceptionSafetyTester {
|
|||
|
||||
// Run the full exception safety test algorithm for the current countdown
|
||||
auto reduced_res =
|
||||
TestAllInvariantsAtCountdown(factory_, selected_operation, count,
|
||||
std::get<Indices>(invariants_)...);
|
||||
// If there is no value in the optional, no invariants were run because no
|
||||
TestAllContractsAtCountdown(factory_, selected_operation, count,
|
||||
std::get<Indices>(contracts_)...);
|
||||
// If there is no value in the optional, no contracts were run because no
|
||||
// exception was thrown. This means that the test is complete and the loop
|
||||
// can exit successfully.
|
||||
if (!reduced_res.has_value()) {
|
||||
return testing::AssertionSuccess();
|
||||
}
|
||||
// If the optional is not empty and the value is falsy, an invariant check
|
||||
// If the optional is not empty and the value is falsy, an contract check
|
||||
// failed so the test must exit to propegate the failure.
|
||||
if (!reduced_res.value()) {
|
||||
return reduced_res.value();
|
||||
}
|
||||
// If the optional is not empty and the value is not falsy, it means
|
||||
// exceptions were thrown but the invariants passed so the test must
|
||||
// exceptions were thrown but the contracts passed so the test must
|
||||
// continue to run.
|
||||
}
|
||||
}
|
||||
|
||||
Factory factory_;
|
||||
Operation operation_;
|
||||
std::tuple<Invariants...> invariants_;
|
||||
std::tuple<Contracts...> contracts_;
|
||||
};
|
||||
|
||||
} // namespace exceptions_internal
|
||||
|
|
@ -1096,7 +1096,7 @@ class ExceptionSafetyTester {
|
|||
* instances of ExceptionSafetyTester.
|
||||
*
|
||||
* In order to test a T for exception safety, a factory for that T, a testable
|
||||
* operation, and at least one invariant callback returning an assertion
|
||||
* operation, and at least one contract callback returning an assertion
|
||||
* result must be applied using the respective methods.
|
||||
*/
|
||||
inline exceptions_internal::ExceptionSafetyTester<>
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue