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https://github.com/chai2010/cc-mini-test
C++ Mini UnitTest and Benchmark Library
https://github.com/chai2010/cc-mini-test
Last synced: 3 months ago
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C++ Mini UnitTest and Benchmark Library
- Host: GitHub
- URL: https://github.com/chai2010/cc-mini-test
- Owner: chai2010
- License: other
- Created: 2014-03-31T02:45:00.000Z (almost 11 years ago)
- Default Branch: master
- Last Pushed: 2020-07-05T09:48:55.000Z (over 4 years ago)
- Last Synced: 2024-10-06T01:19:20.729Z (3 months ago)
- Language: C++
- Homepage:
- Size: 22.5 KB
- Stars: 2
- Watchers: 5
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
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----
# C++ Mini UnitTest and Benchmark Library
This package implements a C++ mini unittest and benchmark library.
Talk: [C++迷你单元测试和基准测试库](http://go-talks.appspot.com/github.com/chai2010/talks/chai2010-cc-mini-test-intro.slide) .
## Unittest
Use `TEST` define a unit test:
#include "test.h"
// 1, 1, 2, 3, 5, ...
int Fibonacci(int i) {
return (i < 2)? 1: Fibonacci(i-1) + Fibonacci(i-2);
}
TEST(Fibonacci, Simple) {
ASSERT_TRUE(Fibonacci(0) == 1);
ASSERT_TRUE(Fibonacci(1) == 1);
ASSERT_TRUE(Fibonacci(2) == 2);
ASSERT_TRUE(Fibonacci(3) == 3);
ASSERT_TRUE(Fibonacci(4) == 5);
ASSERT_TRUE(Fibonacci(5) == 8);
}
TEST(Fibonacci, All) {
static const int fib[] = { 1, 1, 2, 3, 5, ... };
for(int i = 0; i < sizeof(fib)/sizeof(fib[0]); ++i) {
ASSERT_TRUE_MSG(Fibonacci(i) == fib[i],
"failed on fib[%d], expected = %d, got = %d",
i, fib[i], Fibonacci(i)
);
}
}
Run test: `./a.out` (or `./a.out -test=regexp`):
[test] Fibonacci.Simple ok
[test] Fibonacci.All ok
PASS
## Benchmark
Use `BENCH` define a bench test:
BENCH(Fibonacci, 5) {
for(int i = 0; i < BenchN(); ++i) {
Fibonacci(5);
}
}
BENCH(Fibonacci, 10) {
for(int i = 0; i < BenchN(); ++i) {
Fibonacci(10);
}
}
BENCH(Fibonacci, 15) {
for(int i = 0; i < BenchN(); ++i) {
Fibonacci(15);
}
}
Run benchmark: `./a.out -test.bench`:
[bench] Fibonacci.5 20000000 65.5 ns/op
[bench] Fibonacci.10 2000000 763 ns/op
[bench] Fibonacci.15 200000 8740 ns/op
The output means that the loop ran 20000000 times at a speed of 65.5 ns per loop.
If a benchmark needs some expensive setup before running, the timer may be reset:
BENCH(Name, case1) {
auto big = NewBig();
BenchResetTimer();
for(int i = 0; i < BenchN(); ++i) {
big.Len();
}
}
BENCH(Name, case2) {
BenchStopTimer();
auto big = NewBig();
BenchStartTimer();
for(int i = 0; i < BenchN(); ++i) {
big.Len();
}
BenchStopTimer();
delete big;
}
## Init and Exit
We can use `INIT` define a init func, and use `EXIT` define a exit func:
INIT(Fibonacci, init) {
// do some init work
}
EXIT(Fibonacci, exit) {
// do some clean work
}
The init funcs run before the tests, the exit funcs run after the tests.
## Usage
./a.out -help
usage: a.out
[-list=.*]
[-test=.*]
[-test.bench=]
[-test.benchtime=1second]
[-help]
[-h]
## BUGS
Please report bugs to .
Thanks!