rocksdb/util/testharness.h

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// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.
#ifndef STORAGE_LEVELDB_UTIL_TESTHARNESS_H_
#define STORAGE_LEVELDB_UTIL_TESTHARNESS_H_
#include <stdio.h>
#include <stdlib.h>
#include <sstream>
#include "leveldb/env.h"
#include "leveldb/slice.h"
#include "util/random.h"
namespace leveldb {
namespace test {
// Run some of the tests registered by the TEST() macro. If the
// environment variable "LEVELDB_TESTS" is not set, runs all tests.
// Otherwise, runs only the tests whose name contains the value of
// "LEVELDB_TESTS" as a substring. E.g., suppose the tests are:
// TEST(Foo, Hello) { ... }
// TEST(Foo, World) { ... }
// LEVELDB_TESTS=Hello will run the first test
// LEVELDB_TESTS=o will run both tests
// LEVELDB_TESTS=Junk will run no tests
//
// Returns 0 if all tests pass.
// Dies or returns a non-zero value if some test fails.
extern int RunAllTests();
// Return the directory to use for temporary storage.
extern std::string TmpDir();
// Return a randomization seed for this run. Typically returns the
// same number on repeated invocations of this binary, but automated
// runs may be able to vary the seed.
extern int RandomSeed();
// An instance of Tester is allocated to hold temporary state during
// the execution of an assertion.
class Tester {
private:
bool ok_;
const char* fname_;
int line_;
std::stringstream ss_;
public:
Tester(const char* f, int l)
: ok_(true), fname_(f), line_(l) {
}
~Tester() {
if (!ok_) {
fprintf(stderr, "%s:%d:%s\n", fname_, line_, ss_.str().c_str());
exit(1);
}
}
Tester& Is(bool b, const char* msg) {
if (!b) {
ss_ << " Assertion failure " << msg;
ok_ = false;
}
return *this;
}
Tester& IsOk(const Status& s) {
if (!s.ok()) {
ss_ << " " << s.ToString();
ok_ = false;
}
return *this;
}
#define BINARY_OP(name,op) \
template <class X, class Y> \
Tester& name(const X& x, const Y& y) { \
if (! (x op y)) { \
ss_ << " failed: " << x << (" " #op " ") << y; \
ok_ = false; \
} \
return *this; \
}
BINARY_OP(IsEq, ==)
BINARY_OP(IsNe, !=)
BINARY_OP(IsGe, >=)
BINARY_OP(IsGt, >)
BINARY_OP(IsLe, <=)
BINARY_OP(IsLt, <)
#undef BINARY_OP
// Attach the specified value to the error message if an error has occurred
template <class V>
Tester& operator<<(const V& value) {
if (!ok_) {
ss_ << " " << value;
}
return *this;
}
};
#define ASSERT_TRUE(c) ::leveldb::test::Tester(__FILE__, __LINE__).Is((c), #c)
#define ASSERT_OK(s) ::leveldb::test::Tester(__FILE__, __LINE__).IsOk((s))
#define ASSERT_EQ(a,b) ::leveldb::test::Tester(__FILE__, __LINE__).IsEq((a),(b))
#define ASSERT_NE(a,b) ::leveldb::test::Tester(__FILE__, __LINE__).IsNe((a),(b))
#define ASSERT_GE(a,b) ::leveldb::test::Tester(__FILE__, __LINE__).IsGe((a),(b))
#define ASSERT_GT(a,b) ::leveldb::test::Tester(__FILE__, __LINE__).IsGt((a),(b))
#define ASSERT_LE(a,b) ::leveldb::test::Tester(__FILE__, __LINE__).IsLe((a),(b))
#define ASSERT_LT(a,b) ::leveldb::test::Tester(__FILE__, __LINE__).IsLt((a),(b))
#define TCONCAT(a,b) TCONCAT1(a,b)
#define TCONCAT1(a,b) a##b
#define TEST(base,name) \
class TCONCAT(_Test_,name) : public base { \
public: \
void _Run(); \
static void _RunIt() { \
TCONCAT(_Test_,name) t; \
t._Run(); \
} \
}; \
bool TCONCAT(_Test_ignored_,name) = \
::leveldb::test::RegisterTest(#base, #name, &TCONCAT(_Test_,name)::_RunIt); \
void TCONCAT(_Test_,name)::_Run()
// Register the specified test. Typically not used directly, but
// invoked via the macro expansion of TEST.
extern bool RegisterTest(const char* base, const char* name, void (*func)());
} // namespace test
} // namespace leveldb
#endif // STORAGE_LEVELDB_UTIL_TESTHARNESS_H_