Initial commit of Hyperscan

unit/hyperscan/expr_info.cpp

@@ -0,0 +1,118 @@
+/*
+ * Copyright (c) 2015, Intel Corporation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  * Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of Intel Corporation nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+
+#include <limits.h>
+#include <vector>
+
+#include "gtest/gtest.h"
+#include "hs.h"
+#include "test_util.h"
+
+using namespace std;
+using namespace testing;
+
+namespace /* anonymous */ {
+
+struct expected_info {
+    const char *pattern;
+    unsigned min;
+    unsigned max;
+    char unordered_matches;
+    char matches_at_eod;
+    char matches_only_at_eod;
+};
+
+class ExprInfop : public TestWithParam<expected_info> {
+};
+
+TEST_P(ExprInfop, width) {
+    const expected_info &ei = GetParam();
+    SCOPED_TRACE(ei.pattern);
+
+    hs_expr_info_t *info = nullptr;
+    hs_compile_error_t *c_err = nullptr;
+    hs_error_t err = hs_expression_info(ei.pattern, 0, &info, &c_err);
+    ASSERT_EQ(HS_SUCCESS, err);
+    ASSERT_TRUE(info != nullptr);
+    ASSERT_TRUE(c_err == nullptr);
+
+    EXPECT_EQ(ei.min, info->min_width);
+    EXPECT_EQ(ei.max, info->max_width);
+    EXPECT_EQ(ei.unordered_matches, info->unordered_matches);
+    EXPECT_EQ(ei.matches_at_eod, info->matches_at_eod);
+    EXPECT_EQ(ei.matches_only_at_eod, info->matches_only_at_eod);
+
+    free(info);
+}
+
+static const expected_info ei_test[] = {
+    {"abc", 3, 3, 0, 0, 0},
+    {"abc.*def", 6, UINT_MAX, 0, 0, 0},
+    {"abc|defghi", 3, 6, 0, 0, 0},
+    {"abc(def)?", 3, 6, 0, 0, 0},
+    {"abc(def){0,3}", 3, 12, 0, 0, 0},
+    {"abc(def){1,4}", 6, 15, 0, 0, 0},
+    {"", 0, 0, 0, 0, 0},
+    {"^", 0, 0, 0, 0, 0},
+    {"^\\b", 0, 0, 1, 0, 0},
+    {"\\b$", 0, 0, 1, 1, 1},
+    {"(?m)\\b$", 0, 0, 1, 1, 0},
+    {"\\A", 0, 0, 0, 0, 0},
+    {"\\z", 0, 0, 0, 1, 1},
+    {"\\Z", 0, 0, 1, 1, 1},
+    {"$", 0, 0, 1, 1, 1},
+    {"(?m)$", 0, 0, 1, 1, 0},
+    {"^foo", 3, 3, 0, 0, 0},
+    {"^foo.*bar", 6, UINT_MAX, 0, 0, 0},
+    {"^foo.*bar?", 5, UINT_MAX, 0, 0, 0},
+    {"^foo.*bar$", 6, UINT_MAX, 1, 1, 1},
+    {"^foobar$", 6, 6, 1, 1, 1},
+    {"foobar$", 6, 6, 1, 1, 1},
+    {"^.*foo", 3, UINT_MAX, 0, 0, 0},
+    {"foo\\b", 3, 3, 1, 1, 0},
+    {"foo.{1,13}bar", 7, 19, 0, 0, 0},
+    {"foo.{10,}bar", 16, UINT_MAX, 0, 0, 0},
+    {"foo.{0,10}bar", 6, 16, 0, 0, 0},
+    {"foo.{,10}bar", 12, 12, 0, 0, 0},
+    {"foo.{10}bar", 16, 16, 0, 0, 0},
+    {"(^|\n)foo", 3, 4, 0, 0, 0},
+    {"(^\n|)foo", 3, 4, 0, 0, 0},
+    {"(?m)^foo", 3, 3, 0, 0, 0},
+    {"\\bfoo", 3, 3, 0, 0, 0},
+    {"^\\bfoo", 3, 3, 0, 0, 0},
+    {"(?m)^\\bfoo", 3, 3, 0, 0, 0},
+    {"\\Bfoo", 3, 3, 0, 0, 0},
+    {"(foo|bar\\z)", 3, 3, 0, 1, 0},
+    {"(foo|bar)\\z", 3, 3, 0, 1, 1},
+};
+
+INSTANTIATE_TEST_CASE_P(ExprInfo, ExprInfop, ValuesIn(ei_test));
+
+}