mirror of
https://github.com/VectorCamp/vectorscan.git
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118 lines
3.7 KiB
C++
118 lines
3.7 KiB
C++
/*
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* Copyright (c) 2015, Intel Corporation
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Intel Corporation nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "gtest/gtest.h"
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#include "parser/Component.h"
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#include "parser/Parser.h"
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#include "parser/dump.h"
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#include "parser/prefilter.h"
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#include "parser/unsupported.h"
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#include "hs.h"
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#include <sstream>
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using namespace ue2;
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using std::ostringstream;
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using std::unique_ptr;
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struct PatternInfo {
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const char *expr;
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unsigned int flags;
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};
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class ParserTest : public testing::TestWithParam<PatternInfo> {};
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TEST_P(ParserTest, clone) {
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const PatternInfo &info = GetParam();
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SCOPED_TRACE(info.expr);
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// This tests that we can parse expr and then clone it, then verifies that
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// the cloned component tree matches the original (using dump code for
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// serialisation)
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ParseMode mode(info.flags);
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unique_ptr<Component> c(parse(info.expr, mode));
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ASSERT_TRUE(c != nullptr);
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#if defined(DUMP_SUPPORT)
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ostringstream oss;
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dumpTree(oss, c.get());
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#endif
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unique_ptr<Component> c_copy(c->clone());
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ASSERT_TRUE(c_copy != nullptr);
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c.reset(); // free original c
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#if defined(DUMP_SUPPORT)
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ostringstream oss_copy;
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dumpTree(oss_copy, c_copy.get());
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ASSERT_EQ(oss.str(), oss_copy.str());
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#endif
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}
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TEST_P(ParserTest, prefilter) {
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const PatternInfo &info = GetParam();
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SCOPED_TRACE(info.expr);
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ParseMode mode(info.flags);
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unique_ptr<Component> c(parse(info.expr, mode));
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ASSERT_TRUE(c != nullptr);
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prefilterTree(c, mode);
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ASSERT_TRUE(c != nullptr);
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// Should now be supported.
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ASSERT_NO_THROW(checkUnsupported(*c));
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}
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static const PatternInfo patterns[] = {
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{ "easy literal", 0 },
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{ "foo|bar|baz", 0 },
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{ "(?>\\d+)foo", 0 },
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{ "\\bhello\\b", 0 },
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{ "a+ b+? c++", 0 },
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{ "^bi-anchored$", 0 },
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{ "\\C", 0 },
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{ "\\X", HS_FLAG_UTF8 },
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{ "\\w+", HS_FLAG_UTF8 | HS_FLAG_UCP },
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{ "foo(?!bar).*baz", 0 },
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{ "(hatstand.*teakettle){2,} badgerbrush(es)? \\1", 0 },
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{ "a (pine)?(?(1)apple)", 0 },
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{ "^(?(?=hello)[a-z]+|[a-z]{3})", 0 },
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};
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INSTANTIATE_TEST_CASE_P(Parser, ParserTest, testing::ValuesIn(patterns));
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// teach google-test how to print a param
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void PrintTo(const PatternInfo &p, ::std::ostream *os) {
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*os << p.expr << ":" << p.flags;
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}
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