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#include "USRFindingAction.h"
#include "clang/Tooling/Tooling.h"
#include "gtest/gtest.h"
#include <map>
#include <set>
#include <vector>
namespace clang {
namespace rename {
namespace test {
// Determines if the symbol group invariants hold. To recap, those invariants
// are:
// (1) All symbols in the same symbol group share the same USR.
// (2) Two symbols from two different groups do not share the same USR.
static void testOffsetGroups(const char *Code,
const std::vector<std::vector<unsigned>> Groups) {
std::set<std::string> AllUSRs, CurrUSR;
for (const auto &Group : Groups) {
// Groups the invariants do not hold then the value of USR is also invalid,
// but at that point the test has already failed and USR ceases to be
// useful.
std::string USR;
for (const auto &Offset : Group) {
USRFindingAction Action(Offset);
auto Factory = tooling::newFrontendActionFactory(&Action);
EXPECT_TRUE(tooling::runToolOnCode(Factory->create(), Code));
const auto &USRs = Action.getUSRs();
EXPECT_EQ(1u, USRs.size());
USR = USRs[0];
CurrUSR.insert(USR);
}
EXPECT_EQ(1u, CurrUSR.size());
CurrUSR.clear();
AllUSRs.insert(USR);
}
EXPECT_EQ(Groups.size(), AllUSRs.size());
}
TEST(USRLocFinding, FindsVarUSR) {
const char VarTest[] = "\n\
namespace A {\n\
int foo;\n\
}\n\
int foo;\n\
int bar = foo;\n\
int baz = A::foo;\n\
void fun1() {\n\
struct {\n\
int foo;\n\
} b = { 100 };\n\
int foo = 100;\n\
baz = foo;\n\
{\n\
extern int foo;\n\
baz = foo;\n\
foo = A::foo + baz;\n\
A::foo = b.foo;\n\
}\n\
foo = b.foo;\n\
}\n";
std::vector<std::vector<unsigned>> VarTestOffsets(3);
VarTestOffsets[0].push_back(19);
VarTestOffsets[0].push_back(63);
VarTestOffsets[0].push_back(205);
VarTestOffsets[0].push_back(223);
VarTestOffsets[1].push_back(30);
VarTestOffsets[1].push_back(45);
VarTestOffsets[1].push_back(172);
VarTestOffsets[1].push_back(187);
VarTestOffsets[2].push_back(129);
VarTestOffsets[2].push_back(148);
VarTestOffsets[2].push_back(242);
testOffsetGroups(VarTest, VarTestOffsets);
}
} // namespace test
} // namespace rename
} // namespace clang
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