[subresource_filter] Replace KMP by std::search.

components/subresource_filter/core/common/url_pattern_matching_unittest.cc

-// Copyright 2016 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "components/subresource_filter/core/common/url_pattern_matching.h"
-
-#include <vector>
-
-#include "components/subresource_filter/core/common/url_pattern.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "url/gurl.h"
-
-namespace subresource_filter {
-
-namespace {
-
-constexpr proto::AnchorType kAnchorNone = proto::ANCHOR_TYPE_NONE;
-constexpr proto::AnchorType kBoundary = proto::ANCHOR_TYPE_BOUNDARY;
-constexpr proto::AnchorType kSubdomain = proto::ANCHOR_TYPE_SUBDOMAIN;
-
-}  // namespace
-
-TEST(UrlPatternMatchingTest, BuildFailureFunctionForUrlPattern) {
-  const struct {
-    UrlPattern url_pattern;
-    std::vector<size_t> expected_failure_function;
-  } kTestCases[] = {
-      {{"abcd", proto::URL_PATTERN_TYPE_SUBSTRING}, {0, 0, 0, 0}},
-      {{"&a?a/"}, {0, 0, 0, 0, 0}},
-      {{"^a?a/"}, {1, 0, 0, 1, 2, 3}},
-
-      {{"abc*abc", kBoundary, kAnchorNone}, {0, 0, 0}},
-      {{"abc*aaa", kBoundary, kAnchorNone}, {0, 1, 2}},
-      {{"aaa*abc", kBoundary, kAnchorNone}, {0, 0, 0}},
-
-      {{"abc*abc", kAnchorNone, kBoundary}, {0, 0, 0}},
-      {{"abc*aaa", kAnchorNone, kBoundary}, {0, 0, 0}},
-      {{"aaa*abc", kAnchorNone, kBoundary}, {0, 1, 2}},
-
-      {{"abc*cca", kSubdomain, kAnchorNone}, {0, 0, 0, 0, 1, 0}},
-      {{"abc*cca", kBoundary, kAnchorNone}, {0, 1, 0}},
-      {{"abc*cca"}, {0, 0, 0, 0, 1, 0}},
-
-      {{"abc*abacaba*cab"}, {0, 0, 0, 0, 0, 1, 0, 1, 2, 3, 0, 0, 0}},
-      {{"aaa*a^d*^^b"}, {0, 1, 2, 1, 0, 0, 0, 1, 0, 1, 0}},
-      {{"aaa*a^d*^^b", kAnchorNone, kBoundary}, {0, 1, 2, 1, 0, 0, 0}},
-      {{"^^a*a^d*^^b", kBoundary, kAnchorNone}, {1, 0, 0, 0, 1, 0, 1, 0}},
-  };
-
-  for (const auto& test_case : kTestCases) {
-    SCOPED_TRACE(testing::Message()
-                 << "Pattern: " << test_case.url_pattern.url_pattern
-                 << "; Anchors: "
-                 << static_cast<int>(test_case.url_pattern.anchor_left) << ", "
-                 << static_cast<int>(test_case.url_pattern.anchor_right));
-
-    std::vector<size_t> failure;
-    BuildFailureFunction(test_case.url_pattern, &failure);
-    EXPECT_EQ(test_case.expected_failure_function, failure);
-  }
-}
-
-TEST(UrlPatternMatchingTest, IsUrlPatternMatch) {
-  const struct {
-    UrlPattern url_pattern;
-    const char* url;
-    bool expect_match;
-  } kTestCases[] = {
-      {{"xampl", proto::URL_PATTERN_TYPE_SUBSTRING},
-       "http://example.com",
-       true},
-      {{"example", proto::URL_PATTERN_TYPE_SUBSTRING},
-       "http://example.com",
-       true},
-      {{"/a?a"}, "http://ex.com/a?a", true},
-      {{"^abc"}, "http://ex.com/abc?a", true},
-      {{"^abc"}, "http://ex.com/a?abc", true},
-      {{"^abc"}, "http://ex.com/abc?abc", true},
-
-      {{"http://ex", kBoundary, kAnchorNone}, "http://example.com", true},
-      {{"mple.com/", kAnchorNone, kBoundary}, "http://example.com", true},
-
-      // Note: "example.com" will be normalized into "example.com/".
-      {{"http://*mpl", kBoundary, kAnchorNone}, "http://example.com", true},
-      {{"mpl*com/", kAnchorNone, kBoundary}, "http://example.com", true},
-      {{"example^com"}, "http://example.com", false},
-      {{"example^com"}, "http://example/com", true},
-      {{"example.com^"}, "http://example.com:8080", true},
-      {{"http*.com/", kBoundary, kBoundary}, "http://example.com", true},
-      {{"http*.org/", kBoundary, kBoundary}, "http://example.com", false},
-
-      {{"/path?*&p1=*&p2="}, "http://ex.com/aaa/path/bbb?k=v&p1=0&p2=1", false},
-      {{"/path?*&p1=*&p2="}, "http://ex.com/aaa/path?k=v&p1=0&p2=1", true},
-      {{"/path?*&p1=*&p2="}, "http://ex.com/aaa/path?k=v&k=v&p1=0&p2=1", true},
-      {{"/path?*&p1=*&p2="},
-       "http://ex.com/aaa/path?k=v&p1=0&p3=10&p2=1",
-       true},
-      {{"/path?*&p1=*&p2="}, "http://ex.com/aaa/path&p1=0&p2=1", false},
-      {{"/path?*&p1=*&p2="}, "http://ex.com/aaa/path?k=v&p2=0&p1=1", false},
-
-      {{"abc*def*ghijk*xyz"},
-       "http://example.com/abcdeffffghijkmmmxyzzz",
-       true},
-      {{"abc*cdef"}, "http://example.com/abcdef", false},
-
-      {{"^^a^^"}, "http://ex.com/?a=/", true},
-      {{"^^a^^"}, "http://ex.com/?a=/&b=0", true},
-      {{"^^a^^"}, "http://ex.com/?a=", false},
-
-      {{"ex.com^path^*k=v^"}, "http://ex.com/path/?k1=v1&ak=v&kk=vv", true},
-      {{"ex.com^path^*k=v^"}, "http://ex.com/p/path/?k1=v1&ak=v&kk=vv", false},
-      {{"a^a&a^a&"}, "http://ex.com/a/a/a/a/?a&a&a&a&a", true},
-
-      {{"abc*def^"}, "http://ex.com/abc/a/ddef/", true},
-
-      {{"https://example.com/"}, "http://example.com/", false},
-      {{"example.com/", kSubdomain, kAnchorNone}, "http://example.com/", true},
-      {{"examp", kSubdomain, kAnchorNone}, "http://example.com/", true},
-      {{"xamp", kSubdomain, kAnchorNone}, "http://example.com/", false},
-      {{"examp", kSubdomain, kAnchorNone}, "http://test.example.com/", true},
-      {{"t.examp", kSubdomain, kAnchorNone}, "http://test.example.com/", false},
-      {{"com^", kSubdomain, kAnchorNone}, "http://test.example.com/", true},
-      {{"x.com", kSubdomain, kAnchorNone}, "http://ex.com/?url=x.com", false},
-      {{"ex.com/", kSubdomain, kBoundary}, "http://ex.com/", true},
-      {{"ex.com^", kSubdomain, kBoundary}, "http://ex.com/", true},
-      {{"ex.co", kSubdomain, kBoundary}, "http://ex.com/", false},
-      {{"ex.com", kSubdomain, kBoundary}, "http://rex.com.ex.com/", false},
-      {{"ex.com/", kSubdomain, kBoundary}, "http://rex.com.ex.com/", true},
-      {{"http", kSubdomain, kBoundary}, "http://http.com/", false},
-      {{"http", kSubdomain, kAnchorNone}, "http://http.com/", true},
-      {{"/example.com", kSubdomain, kBoundary}, "http://example.com/", false},
-      {{"/example.com/", kSubdomain, kBoundary}, "http://example.com/", false},
-  };
-
-  for (const auto& test_case : kTestCases) {
-    SCOPED_TRACE(testing::Message()
-                 << "Rule: " << test_case.url_pattern.url_pattern
-                 << "; Anchors: "
-                 << static_cast<int>(test_case.url_pattern.anchor_left) << ", "
-                 << static_cast<int>(test_case.url_pattern.anchor_right)
-                 << "; URL: " << GURL(test_case.url));
-
-    std::vector<size_t> failure;
-    BuildFailureFunction(test_case.url_pattern, &failure);
-    const bool is_match =
-        IsUrlPatternMatch(GURL(test_case.url), test_case.url_pattern,
-                          failure.begin(), failure.end());
-    EXPECT_EQ(test_case.expect_match, is_match);
-  }
-}
-
-}  // namespace subresource_filter