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#include "gtest/gtest.h"
#include "clang/Basic/SourceLocation.h"
#include "clang/Basic/SourceManager.h"
#include "clang/Basic/Diagnostic.h"
#include "clang/Basic/FileManager.h"
#include "clang/Analysis/Analyses/UnsafeBufferUsage.h"
using namespace clang;
namespace {
// The test fixture.
class UnsafeBufferUsageTest : public ::testing::Test {
protected:
UnsafeBufferUsageTest()
: FileMgr(FileMgrOpts), DiagID(new DiagnosticIDs()),
Diags(DiagID, new DiagnosticOptions, new IgnoringDiagConsumer()),
SourceMgr(Diags, FileMgr) {}
FileSystemOptions FileMgrOpts;
FileManager FileMgr;
IntrusiveRefCntPtr<DiagnosticIDs> DiagID;
DiagnosticsEngine Diags;
SourceManager SourceMgr;
};
} // namespace
TEST_F(UnsafeBufferUsageTest, FixItHintsConflict) {
const FileEntry *DummyFile = FileMgr.getVirtualFile("<virtual>", 100, 0);
FileID DummyFileID = SourceMgr.getOrCreateFileID(DummyFile, SrcMgr::C_User);
SourceLocation StartLoc = SourceMgr.getLocForStartOfFile(DummyFileID);
#define MkDummyHint(Begin, End) \
FixItHint::CreateReplacement(SourceRange(StartLoc.getLocWithOffset((Begin)), \
StartLoc.getLocWithOffset((End))), \
"dummy")
FixItHint H1 = MkDummyHint(0, 5);
FixItHint H2 = MkDummyHint(6, 10);
FixItHint H3 = MkDummyHint(20, 25);
llvm::SmallVector<FixItHint> Fixes;
// Test non-overlapping fix-its:
Fixes = {H1, H2, H3};
EXPECT_FALSE(internal::anyConflict(Fixes, SourceMgr));
Fixes = {H3, H2, H1}; // re-order
EXPECT_FALSE(internal::anyConflict(Fixes, SourceMgr));
// Test overlapping fix-its:
Fixes = {H1, H2, H3, MkDummyHint(0, 4) /* included in H1 */};
EXPECT_TRUE(internal::anyConflict(Fixes, SourceMgr));
Fixes = {H1, H2, H3, MkDummyHint(10, 15) /* overlaps H2 */};
EXPECT_TRUE(internal::anyConflict(Fixes, SourceMgr));
Fixes = {H1, H2, H3, MkDummyHint(7, 23) /* overlaps H2, H3 */};
EXPECT_TRUE(internal::anyConflict(Fixes, SourceMgr));
Fixes = {H1, H2, H3, MkDummyHint(2, 23) /* overlaps H1, H2, and H3 */};
EXPECT_TRUE(internal::anyConflict(Fixes, SourceMgr));
}
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