mirror of
https://github.com/VectorCamp/vectorscan.git
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98 lines
3.5 KiB
C++
98 lines
3.5 KiB
C++
/*
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* Copyright (c) 2015-2017, 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 "nfagraph_common.h"
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#include "gtest/gtest.h"
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#include "compiler/compiler.h"
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#include "nfagraph/ng.h"
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#include "nfagraph/ng_builder.h"
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#include "nfagraph/ng_width.h"
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#include "grey.h"
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#include "util/target_info.h"
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#include "util/depth.h"
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using namespace std;
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using namespace testing;
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using namespace ue2;
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struct WidthTest {
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string pattern;
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depth minWidth;
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depth maxWidth;
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};
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class NFAWidthTest : public TestWithParam<WidthTest> { };
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static const WidthTest widthTests[] = {
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{ "()", depth(0), depth(0) },
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{ "a", depth(1), depth(1) },
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{ "a?b", depth(1), depth(2) },
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{ "foobar", depth(6), depth(6) },
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{ "foo(bar)?", depth(3), depth(6) },
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{ "(a|ab|abc|abcd)", depth(1), depth(4) },
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{ "foo.*bar", depth(6), depth::infinity() },
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{ "foo(bar)*", depth(3), depth::infinity() },
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{ "foo(bar)+", depth(6), depth::infinity() },
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{ "foo(bar){1,3}", depth(6), depth(12) },
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{ "(abcd)+", depth(4), depth::infinity() },
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{ "foo\\z", depth(3), depth(3) },
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{ "^foo", depth(3), depth(3) },
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{ "^foo|bar.*baz", depth(3), depth::infinity() },
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{ "^foobar.*|baz", depth(3), depth::infinity() },
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{ "foo(\\z|bar)", depth(3), depth(6) },
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{ "foo(|bar\\z)", depth(3), depth(6) },
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{ "foo.{0,15}bar", depth(6), depth(21) },
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{ "foo.{0,15}.*bar", depth(6), depth::infinity() },
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{ "(?smi)^(aa[^a]aa$|a|a+\\Z|a)", depth(1), depth::infinity() }
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};
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INSTANTIATE_TEST_CASE_P(NFAWidth, NFAWidthTest, ValuesIn(widthTests));
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TEST_P(NFAWidthTest, Check) {
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const WidthTest &t = GetParam();
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SCOPED_TRACE(testing::Message() << "Pattern: " << t.pattern);
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auto g = constructGraph(t.pattern, 0);
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ASSERT_EQ(t.minWidth, findMinWidth(*g));
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ASSERT_EQ(t.maxWidth, findMaxWidth(*g));
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}
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// for google test
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void PrintTo(const WidthTest &w, ::std::ostream *os) {
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*os << "WidthTest: " << w.pattern << "{" << w.minWidth << ',';
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if (w.maxWidth == depth::infinity()) {
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*os << "inf";
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} else {
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*os << w.maxWidth;
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}
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*os << '}';
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}
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