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https://github.com/VectorCamp/vectorscan.git
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224 lines
11 KiB
C++
224 lines
11 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 "nfagraph_common.h"
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#include "compiler/compiler.h"
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#include "grey.h"
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#include "nfagraph/ng_builder.h"
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#include "nfagraph/ng.h"
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#include "nfagraph/ng_asserts.h"
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#include "util/target_info.h"
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#include "hs_compile.h"
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#include "ng_find_matches.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 MatchesTestParams {
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string pattern;
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string input;
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vector<pair<size_t, size_t>> matches;
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unsigned flags;
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bool notEod;
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bool som;
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};
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// teach google-test how to print a param
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void PrintTo(const MatchesTestParams &p, ::std::ostream *os) {
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*os << "( \"" << p.pattern << "\", "
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<< "\"" << p.input << "\", "
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<< "{";
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for (const auto &match : p.matches) {
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*os << "P(" << match.first << ',' << match.second << "),";
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}
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*os << "}, ";
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*os << "flags(" << p.flags << "), "
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<< p.notEod << ", "
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<< p.som
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<< ")\n";
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}
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class MatchesTest: public TestWithParam<MatchesTestParams> {
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};
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#define P(x, y) pair<size_t, size_t>((x), (y))
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static const MatchesTestParams matchesTests[] = {
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// EOD and anchored patterns
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// these should produce no matches
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{ "^foobar", "foolish", {}, 0, false, true},
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{ "^foobar$", "ze foobar", {}, 0, false, true},
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{ "^foobar$", "foobar ", {}, 0, false, true},
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{ "^abc\\b", "abcde", {}, 0, false, true},
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{ "^a\\b", "aa", {}, 0, false, true},
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{ "^foobar\\b", "foobarz", {}, 0, false, true},
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{ "^foobar", "fooq", {}, 0, false, true},
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{ "^foobar", "foo", {}, 0, false, true},
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{ "^foobar", "fooba", {}, 0, false, true},
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{ "^foo *bar", "foolishness bar none ", {}, 0, false, true},
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{ "^(abc\\s+dex?y)?(ghij|klmn).*?x?y", "abc p", {}, 0, false, true},
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{ "^(abc\\s+dex?y)?(ghij|klmn).*?x?y", "abc dez", {}, 0, false, true},
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{ "^(abc\\s+dex?y)?(ghij|klmn).*?x?y", "abc ghi", {}, 0, false, true},
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{ "^(abc\\s+dex?y)?(ghij|klmn).*?x?y", "abc hij", {}, 0, false, true},
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{ "^(abc\\s+dex?y)?(ghij|klmn).*?x?y", "abc klm", {}, 0, false, true},
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{ "^(abc\\s+dex?y)?(ghij|klmn).*?x?y", "abcklmn", {}, 0, false, true},
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{ "^.*foobar", "foobaz", {}, 0, false, true},
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{ "^.*foobar", "foobaz\n", {}, 0, false, true},
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{ "^(foo)|(bar)", "fo baz", {}, 0, false, true},
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{ "^((foo)|(bar))", "fo baz", {}, 0, false, true},
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{ "aaaaaaaa$", "AAaaAAaa", {}, 0, false, true},
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{ "^foo\\z", "foo\n", {}, 0, false, true},
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{ "^(foo){2,}", "foo", {}, 0, false, true},
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// these should match
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{ "^abc\\B", "abcde", { P(0,3) }, 0, false, true},
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{ "^abc\\b", "abc de", { P(0, 3) }, 0, false, true},
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{ "^foobar", "foobar", { P(0, 6) }, 0, false, true},
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{ "^foobar$", "foobar", { P(0, 6) }, 0, false, true},
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{ "^foobar", "foobarq", { P(0, 6) }, 0, false, true},
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{ "^foobar\\B", "foobarz", { P(0, 6) }, 0, false, true},
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{ "^foo.*bar", "foobar none ", { P(0, 6) }, 0, false, true},
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{ "^foo.*bar", "foo bar none ", { P(0, 7) }, 0, false, true},
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{ "^foo.*bar", "foo bar none ", { P(0, 10) }, 0, false, true},
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{ "^foo.*bar", "foolishness bar none ", { P(0, 15) }, 0, false, true},
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{ "^(abc\\s+dex?y)?(ghij|klmn).*?x?y", "klmny", { P(0, 5) }, 0, false, true},
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{ "^(abc\\s+dex?y)?(ghij|klmn).*?x?y", "abc dexyklmnxy", { P(0, 17) }, 0, false, true},
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{ "^.*foobar", "abcfoobar", { P(0, 9) }, 0, false, true},
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{ "^((foo)|(bar))", "foobar", { P(0, 3) }, 0, false, true},
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{ "^((foo)|(bar))", "foo bar", { P(0, 3) }, 0, false, true},
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{ "^(foo)|(bar)", "foobaz", { P(0, 3) }, 0, false, true},
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{ "^(foo)|(bar)", "foo baz", { P(0, 3) }, 0, false, true},
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{ "^(f[o0]+o)|(bar)", "fo0o baz", { P(0, 4) }, 0, false, true},
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{ "aaaaaaaa$", "AAaaAAaa", { P(0, 8) }, HS_FLAG_CASELESS, false, true},
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{ "^foo\\z", "foo", { P(0, 3) }, 0, false, true},
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{ "^foo\\Z", "foo", { P(0, 3) }, 0, false, true},
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{ "^foo\\Z", "foo\n", { P(0, 3) }, 0, false, true},
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{ "^(foo){2,}", "foofoofoo", { P(0, 6), P(0, 9)}, 0, false, true},
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// try multiple matches per pattern
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{ "^(foo)|(bar)", "foo bar", { P(0, 3), P(4, 7) }, 0, false, true},
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{ "^(foo)|(bar)", "foobar", { P(0, 3), P(3, 6) }, 0, false, true},
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{ "^(foo)+|(bar)", "foo foobar", { P(0, 3), P(7, 10) }, 0, false, true},
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{ "^(foo)+|(bar)", "foofoo bar", { P(0, 3), P(0, 6), P(7, 10) }, 0, false, true},
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{ "^(foo)|(bar)", "foobarbaz", { P(0, 3), P(3, 6) }, 0, false, true},
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{ "^(f[o0]+o)", "foo0obar", { P(0, 3), P(0, 5) }, 0, false, true},
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{ "^(f[o0]+)", "foo0obar", { P(0, 2), P(0, 3), P(0, 4), P(0, 5) }, 0, false, true},
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// unanchored patterns
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{ "\\b4\\B", "444", { P(0, 1) }, 0, false, true},
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{ "\\b\\w+\\b", "444 555", { P(0, 3), P(4, 7) }, 0, false, true},
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{ "foobar", "veryfoolish", {}, 0, false, true},
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{ "foo.*bar", "extreme foolishness bar none ", { P(8, 23) }, 0, false, true},
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{ "(abc\\s+dex?y)?(ghij|klmn).*?x?y", "abc deyghijfy", { P(0, 13) }, 0, false, true},
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{ "(abc\\s+dex?y)?(ghij|klmn).*?x?y", "wegf5tgghij34xy", { P(7, 15) }, 0, false, true},
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{ ".*foobar", "verylongfoobaz", {}, 0, false, true},
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{ ".*foobar", "foobaz\n", {}, 0, false, true},
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{ "(foo)|(bar)", "verylongfo baz", {}, 0, false, true},
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{ "(foo)?bar", "foobar", { P(0, 6) }, 0, false, true},
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{ "foo?bar", "foobar", { P(0, 6) }, 0, false, true},
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{ "(abc)|(bcd)", "abcd", { P(0, 3), P(1, 4) }, 0, false, true},
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{ "(abcd)|(bc)", "abcd", { P(0, 4), P(1, 3) }, 0, false, true},
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{ "(ab|cd)ef", "abcdef cdabef", { P(2, 6), P(9, 13) }, 0, false, true},
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{ "(foo)|(bar)", "verylongfoobbarbaz", { P(8, 11), P(12, 15) }, 0, false, true},
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{ "(a[aaaa]aa?((\\B)|[aa])){1,9}", "aaaaa", { P(0, 3), P(0, 4), P(0, 5) }, 0, false, true},
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{ "bar\\Z", "foobar\n", { P(3, 6) }, 0, false, true},
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// multi-line patterns
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{ "^foo$", "foo\nbar", { P(0, 3) }, HS_FLAG_MULTILINE, false, true},
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{ "^bar$", "foo\nbar", { P(4, 7) }, HS_FLAG_MULTILINE, false, true},
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{ "^foo$", "big foo\nbar", {}, HS_FLAG_MULTILINE, false, true},
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{ "^foo$", "foo\nfoo", { P(0, 3), P(4, 7) }, HS_FLAG_MULTILINE, false, true},
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{ "\\bfoo$", "big foo\nbar", { P(4, 7) }, HS_FLAG_MULTILINE, false, true},
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{ "\\Bfoo$", "bigfoo\nbar", { P(3, 6) }, HS_FLAG_MULTILINE, false, true},
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{ "^foo\\z", "big\nfoo", { P(4, 7) }, HS_FLAG_MULTILINE, false, true},
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{ "^foo\\Z", "big\nfoo\n", { P(4, 7) }, HS_FLAG_MULTILINE, false, true},
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// utf8 patterns
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{ "ab+", "\x61\x62", { P(0, 2) }, HS_FLAG_UTF8, false, true},
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{ "ab.+d", "\x61\x62\xf0\xa4\xad\xa2\x64", { P(0, 7) }, HS_FLAG_UTF8, false, true},
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// noteod patterns
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{ "^foobar$", "foobar", {}, 0, true, true},
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{ "aaaaaaaa$", "AAaaAAaa", {}, HS_FLAG_CASELESS, true, true},
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{ "^foo\\z", "foo", {}, 0, true, true},
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{ "^foo\\Z", "foo", {}, 0, true, true},
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{ "^foo\\Z", "foo\n", {}, 0, true, true},
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// vacuous patterns (with multiline, utf8 and caseless flags)
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// vacuous patterns have SOM turned off, so all SOM are zero
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{ "b*", "abc", { P(0, 0), P(0, 1), P(0, 2), P(0, 3) }, 0, false, false},
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{ "b*", "", { P(0, 0) }, 0, false, false},
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{ "(aa|b*)", "a", { P(0, 0), P(0, 1) }, 0, false, false},
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{ "b*", "bBb", { P(0, 0), P(0, 1), P(0, 2), P(0, 3) }, HS_FLAG_CASELESS, false, false},
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{ "b*", "abc", { P(0, 0), P(0, 1), P(0, 2), P(0, 3) }, HS_FLAG_MULTILINE, false, false},
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{ "b*", "", { P(0, 0) }, HS_FLAG_MULTILINE, false, false},
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{ "(aa|b*)", "a", { P(0, 0), P(0, 1) }, HS_FLAG_MULTILINE, false, false},
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{ "b*", "bBb", { P(0, 0), P(0, 1), P(0, 2), P(0, 3) }, HS_FLAG_MULTILINE | HS_FLAG_CASELESS, false, false},
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{ "b*", "abc", { P(0, 0), P(0, 1), P(0, 2), P(0, 3) }, HS_FLAG_UTF8, false, false},
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{ "b*", "", { P(0, 0) }, HS_FLAG_UTF8, false, false},
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{ "(aa|b*)", "a", { P(0, 0), P(0, 1) }, HS_FLAG_UTF8, false, false},
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{ "b*", "bBb", { P(0, 0), P(0, 1), P(0, 2), P(0, 3) }, HS_FLAG_UTF8 | HS_FLAG_CASELESS, false, false},
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{ "b*", "bBb", { P(0, 0), P(0, 1), P(0, 2), P(0, 3) }, HS_FLAG_UTF8 | HS_FLAG_CASELESS, false, false},
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{ ".*", "\x61\xf0\xa4\xad\xa2\x64", { P(0, 0), P(0, 1), P(0, 5), P(0, 6) }, HS_FLAG_UTF8, false, false},
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{ ".*", "\xf0\xa4\xad\xa2\xf0\xa4\xad\xa3\x64", { P(0, 0), P(0, 4), P(0, 8), P(0, 9) }, HS_FLAG_UTF8, false, false},
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// special patterns for detecting various bugs
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{ "(\\B.|a)*a", "\xf0\xa4\xad\xa2\x61", { P(0, 5) }, HS_FLAG_UTF8, false, true},
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{ ".*", "\xf0\xa4\xad", { P(0, 0), P(0, 1), P(0, 2), P(0, 3) }, 0, false, true},
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{ "\\Bfoo", "foo", {}, 0, false, true},
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{ "fo\\B", "fo_", { P(0, 2)}, 0, false, true},
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{ "^.*", "\xee\x80\x80\n\xee\x80\x80", { P(0, 0), P(0, 3), P(0, 4), P(0, 7)}, HS_FLAG_UTF8 | HS_FLAG_MULTILINE, false, false},
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// ignore highlander patterns as they can't be easily checked
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};
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TEST_P(MatchesTest, Check) {
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const MatchesTestParams &t = GetParam();
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CompileContext cc(false, false, get_current_target(), Grey());
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ReportManager rm(cc.grey);
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ParsedExpression parsed(0, t.pattern.c_str(), t.flags, 0);
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auto g = buildWrapper(rm, cc, parsed);
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bool utf8 = (t.flags & HS_FLAG_UTF8) > 0;
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set<pair<size_t, size_t>> matches;
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findMatches(*g, rm, t.input, matches, t.notEod, t.som, utf8);
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set<pair<size_t, size_t>> expected(begin(t.matches), end(t.matches));
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ASSERT_EQ(expected, matches) << "Pattern '" << t.pattern
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<< "' against input '" << t.input << "'";
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}
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INSTANTIATE_TEST_CASE_P(ng_find_matches, MatchesTest, ValuesIn(matchesTests));
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