mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-01 08:23:21 +01:00
63e2201f3e
- This is a pretty slow / memory intensive implementation, and I will likely change it to an iterative model, but it works. llvm-svn: 90447
97 lines
2.4 KiB
C++
97 lines
2.4 KiB
C++
//===- llvm/unittest/ADT/DeltaAlgorithmTest.cpp ---------------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "gtest/gtest.h"
|
|
#include "llvm/ADT/DeltaAlgorithm.h"
|
|
#include <algorithm>
|
|
#include <cstdarg>
|
|
using namespace llvm;
|
|
|
|
std::ostream &operator<<(std::ostream &OS,
|
|
const std::set<unsigned> &S) {
|
|
OS << "{";
|
|
for (std::set<unsigned>::const_iterator it = S.begin(),
|
|
ie = S.end(); it != ie; ++it) {
|
|
if (it != S.begin())
|
|
OS << ",";
|
|
OS << *it;
|
|
}
|
|
OS << "}";
|
|
return OS;
|
|
}
|
|
|
|
namespace {
|
|
|
|
class FixedDeltaAlgorithm : public DeltaAlgorithm {
|
|
changeset_ty FailingSet;
|
|
unsigned NumTests;
|
|
|
|
protected:
|
|
virtual bool ExecuteOneTest(const changeset_ty &Changes) {
|
|
++NumTests;
|
|
return std::includes(Changes.begin(), Changes.end(),
|
|
FailingSet.begin(), FailingSet.end());
|
|
}
|
|
|
|
public:
|
|
FixedDeltaAlgorithm(const changeset_ty &_FailingSet)
|
|
: FailingSet(_FailingSet),
|
|
NumTests(0) {}
|
|
|
|
unsigned getNumTests() const { return NumTests; }
|
|
};
|
|
|
|
std::set<unsigned> fixed_set(unsigned N, ...) {
|
|
std::set<unsigned> S;
|
|
va_list ap;
|
|
va_start(ap, N);
|
|
for (unsigned i = 0; i != N; ++i)
|
|
S.insert(va_arg(ap, unsigned));
|
|
va_end(ap);
|
|
return S;
|
|
}
|
|
|
|
std::set<unsigned> range(unsigned Start, unsigned End) {
|
|
std::set<unsigned> S;
|
|
while (Start != End)
|
|
S.insert(Start++);
|
|
return S;
|
|
}
|
|
|
|
std::set<unsigned> range(unsigned N) {
|
|
return range(0, N);
|
|
}
|
|
|
|
TEST(DeltaAlgorithmTest, Basic) {
|
|
// P = {3,5,7} \in S
|
|
// [0, 20) should minimize to {3,5,7} in a reasonable number of tests.
|
|
std::set<unsigned> Fails = fixed_set(3, 3, 5, 7);
|
|
FixedDeltaAlgorithm FDA(Fails);
|
|
EXPECT_EQ(fixed_set(3, 3, 5, 7), FDA.Run(range(20)));
|
|
EXPECT_GE(33U, FDA.getNumTests());
|
|
|
|
// P = {3,5,7} \in S
|
|
// [10, 20) should minimize to [10,20)
|
|
EXPECT_EQ(range(10,20), FDA.Run(range(10,20)));
|
|
|
|
// P = [0,4) \in S
|
|
// [0, 4) should minimize to [0,4) in 11 tests.
|
|
//
|
|
// 11 = |{ {},
|
|
// {0}, {1}, {2}, {3},
|
|
// {1, 2, 3}, {0, 2, 3}, {0, 1, 3}, {0, 1, 2},
|
|
// {0, 1}, {2, 3} }|
|
|
FDA = FixedDeltaAlgorithm(range(10));
|
|
EXPECT_EQ(range(4), FDA.Run(range(4)));
|
|
EXPECT_EQ(11U, FDA.getNumTests());
|
|
}
|
|
|
|
}
|
|
|