Move googleurl into the Chrome repo.

url/url_parse_unittest.cc

+// Copyright 2007, Google Inc.
+// All rights reserved.
+//
+// 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 Google Inc. 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 "base/basictypes.h"
+#include "googleurl/src/url_parse.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+// Some implementations of base/basictypes.h may define ARRAYSIZE.
+// If it's not defined, we define it to the ARRAYSIZE_UNSAFE macro
+// which is in our version of basictypes.h.
+#ifndef ARRAYSIZE
+#define ARRAYSIZE ARRAYSIZE_UNSAFE
+#endif
+
+// Interesting IE file:isms...
+//
+//  file:/foo/bar              file:///foo/bar
+//      The result here seems totally invalid!?!? This isn't UNC.
+//
+//  file:/
+//  file:// or any other number of slashes
+//      IE6 doesn't do anything at all if you click on this link. No error:
+//      nothing. IE6's history system seems to always color this link, so I'm
+//      guessing that it maps internally to the empty URL.
+//
+//  C:\                        file:///C:/
+//  /                          file:///C:/
+//  /foo                       file:///C:/foo
+//      Interestingly, IE treats "/" as an alias for "c:\", which makes sense,
+//      but is weird to think about on Windows.
+//
+//  file:foo/                  file:foo/  (invalid?!?!?)
+//  file:/foo/                 file:///foo/  (invalid?!?!?)
+//  file://foo/                file://foo/   (UNC to server "foo")
+//  file:///foo/               file:///foo/  (invalid)
+//  file:////foo/              file://foo/   (UNC to server "foo")
+//      Any more than four slashes is also treated as UNC.
+//
+//  file:C:/                   file://C:/
+//  file:/C:/                  file://C:/
+//      The number of slashes after "file:" don't matter if the thing following
+//      it looks like an absolute drive path. Also, slashes and backslashes are
+//      equally valid here.
+
+namespace {
+
+// Used for regular URL parse cases.
+struct URLParseCase {
+  const char* input;
+
+  const char* scheme;
+  const char* username;
+  const char* password;
+  const char* host;
+  int port;
+  const char* path;
+  const char* query;
+  const char* ref;
+};
+
+// Simpler version of URLParseCase for testing path URLs.
+struct PathURLParseCase {
+  const char* input;
+
+  const char* scheme;
+  const char* path;
+};
+
+// Simpler version of URLParseCase for testing mailto URLs.
+struct MailtoURLParseCase {
+  const char* input;
+
+  const char* scheme;
+  const char* path;
+  const char* query;
+};
+
+// More complicated version of URLParseCase for testing filesystem URLs.
+struct FileSystemURLParseCase {
+  const char* input;
+
+  const char* inner_scheme;
+  const char* inner_username;
+  const char* inner_password;
+  const char* inner_host;
+  int inner_port;
+  const char* inner_path;
+  const char* path;
+  const char* query;
+  const char* ref;
+};
+
+bool ComponentMatches(const char* input,
+                      const char* reference,
+                      const url_parse::Component& component) {
+  // If the component is nonexistant (length == -1), it should begin at 0.
+  EXPECT_TRUE(component.len >= 0 || component.len == -1);
+
+  // Begin should be valid.
+  EXPECT_LE(0, component.begin);
+
+  // A NULL reference means the component should be nonexistant.
+  if (!reference)
+    return component.len == -1;
+  if (component.len < 0)
+    return false;  // Reference is not NULL but we don't have anything
+
+  if (strlen(reference) != static_cast<size_t>(component.len))
+    return false;  // Lengths don't match
+
+  // Now check the actual characters.
+  return strncmp(reference, &input[component.begin], component.len) == 0;
+}
+
+void ExpectInvalidComponent(const url_parse::Component& component) {
+  EXPECT_EQ(0, component.begin);
+  EXPECT_EQ(-1, component.len);
+}
+
+}  // namespace
+
+// Parsed ----------------------------------------------------------------------
+
+TEST(URLParser, Length) {
+  const char* length_cases[] = {
+      // One with everything in it.
+    "http://user:pass@host:99/foo?bar#baz",
+      // One with nothing in it.
+    "",
+      // Working backwards, let's start taking off stuff from the full one.
+    "http://user:pass@host:99/foo?bar#",
+    "http://user:pass@host:99/foo?bar",
+    "http://user:pass@host:99/foo?",
+    "http://user:pass@host:99/foo",
+    "http://user:pass@host:99/",
+    "http://user:pass@host:99",
+    "http://user:pass@host:",
+    "http://user:pass@host",
+    "http://host",
+    "http://user@",
+    "http:",
+  };
+  for (size_t i = 0; i < arraysize(length_cases); i++) {
+    int true_length = static_cast<int>(strlen(length_cases[i]));
+
+    url_parse::Parsed parsed;
+    url_parse::ParseStandardURL(length_cases[i], true_length, &parsed);
+
+    EXPECT_EQ(true_length, parsed.Length());
+  }
+}
+
+TEST(URLParser, CountCharactersBefore) {
+  using namespace url_parse;
+  struct CountCase {
+    const char* url;
+    Parsed::ComponentType component;
+    bool include_delimiter;
+    int expected_count;
+  } count_cases[] = {
+      // Test each possibility in the case where all components are present.
+//    0         1         2
+//    0123456789012345678901
+    {"http://u:p@h:8/p?q#r", Parsed::SCHEME, true, 0},
+    {"http://u:p@h:8/p?q#r", Parsed::SCHEME, false, 0},
+    {"http://u:p@h:8/p?q#r", Parsed::USERNAME, true, 7},
+    {"http://u:p@h:8/p?q#r", Parsed::USERNAME, false, 7},
+    {"http://u:p@h:8/p?q#r", Parsed::PASSWORD, true, 9},
+    {"http://u:p@h:8/p?q#r", Parsed::PASSWORD, false, 9},
+    {"http://u:p@h:8/p?q#r", Parsed::HOST, true, 11},
+    {"http://u:p@h:8/p?q#r", Parsed::HOST, false, 11},
+    {"http://u:p@h:8/p?q#r", Parsed::PORT, true, 12},
+    {"http://u:p@h:8/p?q#r", Parsed::PORT, false, 13},
+    {"http://u:p@h:8/p?q#r", Parsed::PATH, false, 14},
+    {"http://u:p@h:8/p?q#r", Parsed::PATH, true, 14},
+    {"http://u:p@h:8/p?q#r", Parsed::QUERY, true, 16},
+    {"http://u:p@h:8/p?q#r", Parsed::QUERY, false, 17},
+    {"http://u:p@h:8/p?q#r", Parsed::REF, true, 18},
+    {"http://u:p@h:8/p?q#r", Parsed::REF, false, 19},
+      // Now test when the requested component is missing.
+    {"http://u:p@h:8/p?", Parsed::REF, true, 17},
+    {"http://u:p@h:8/p?q", Parsed::REF, true, 18},
+    {"http://u:p@h:8/p#r", Parsed::QUERY, true, 16},
+    {"http://u:p@h:8#r", Parsed::PATH, true, 14},
+    {"http://u:p@h/", Parsed::PORT, true, 12},
+    {"http://u:p@/", Parsed::HOST, true, 11},
+      // This case is a little weird. It will report that the password would
+      // start where the host begins. This is arguably correct, although you
+      // could also argue that it should start at the '@' sign. Doing it
+      // starting with the '@' sign is actually harder, so we don't bother.
+    {"http://u@h/", Parsed::PASSWORD, true, 9},
+    {"http://h/", Parsed::USERNAME, true, 7},
+    {"http:", Parsed::USERNAME, true, 5},
+    {"", Parsed::SCHEME, true, 0},
+      // Make sure a random component still works when there's nothing there.
+    {"", Parsed::REF, true, 0},
+      // File URLs are special with no host, so we test those.
+    {"file:///c:/foo", Parsed::USERNAME, true, 7},
+    {"file:///c:/foo", Parsed::PASSWORD, true, 7},
+    {"file:///c:/foo", Parsed::HOST, true, 7},
+    {"file:///c:/foo", Parsed::PATH, true, 7},
+  };
+  for (size_t i = 0; i < ARRAYSIZE(count_cases); i++) {
+    int length = static_cast<int>(strlen(count_cases[i].url));
+
+    // Simple test to distinguish file and standard URLs.
+    url_parse::Parsed parsed;
+    if (length > 0 && count_cases[i].url[0] == 'f')
+      url_parse::ParseFileURL(count_cases[i].url, length, &parsed);
+    else
+      url_parse::ParseStandardURL(count_cases[i].url, length, &parsed);
+
+    int chars_before = parsed.CountCharactersBefore(
+        count_cases[i].component, count_cases[i].include_delimiter);
+    EXPECT_EQ(count_cases[i].expected_count, chars_before);
+  }
+}
+
+// Standard --------------------------------------------------------------------
+
+// Input                               Scheme  Usrname Passwd     Host         Port Path       Query        Ref
+// ------------------------------------ ------- ------- ---------- ------------ --- ---------- ------------ -----
+static URLParseCase cases[] = {
+  // Regular URL with all the parts
+{"http://user:pass@foo:21/bar;par?b#c", "http", "user", "pass",    "foo",       21, "/bar;par","b",          "c"},
+
+  // Known schemes should lean towards authority identification
+{"http:foo.com",                        "http", NULL,  NULL,      "foo.com",    -1, NULL,      NULL,        NULL},
+
+  // Spaces!
+{"\t   :foo.com   \n",                  "",     NULL,  NULL,      "foo.com",    -1, NULL,      NULL,        NULL},
+{" foo.com  ",                          NULL,   NULL,  NULL,      "foo.com",    -1, NULL,      NULL,        NULL},
+{"a:\t foo.com",                        "a",    NULL,  NULL,      "\t foo.com", -1, NULL,      NULL,        NULL},
+{"http://f:21/ b ? d # e ",             "http", NULL,  NULL,      "f",          21, "/ b ",    " d ",       " e"},
+
+  // Invalid port numbers should be identified and turned into -2, empty port
+  // numbers should be -1. Spaces aren't allowed in port numbers
+{"http://f:/c",                         "http", NULL,  NULL,      "f",          -1, "/c",      NULL,        NULL},
+{"http://f:0/c",                        "http", NULL,  NULL,      "f",           0, "/c",      NULL,        NULL},
+{"http://f:00000000000000/c",           "http", NULL,  NULL,      "f",           0, "/c",      NULL,        NULL},
+{"http://f:00000000000000000000080/c",  "http", NULL,  NULL,      "f",          80, "/c",      NULL,        NULL},
+{"http://f:b/c",                        "http", NULL,  NULL,      "f",          -2, "/c",      NULL,        NULL},
+{"http://f: /c",                        "http", NULL,  NULL,      "f",          -2, "/c",      NULL,        NULL},
+{"http://f:\n/c",                       "http", NULL,  NULL,      "f",          -2, "/c",      NULL,        NULL},
+{"http://f:fifty-two/c",                "http", NULL,  NULL,      "f",          -2, "/c",      NULL,        NULL},
+{"http://f:999999/c",                   "http", NULL,  NULL,      "f",          -2, "/c",      NULL,        NULL},
+{"http://f: 21 / b ? d # e ",           "http", NULL,  NULL,      "f",          -2, "/ b ",    " d ",       " e"},
+
+  // Creative URLs missing key elements
+{"",                                    NULL,   NULL,  NULL,      NULL,         -1, NULL,      NULL,        NULL},
+{"  \t",                                NULL,   NULL,  NULL,      NULL,         -1, NULL,      NULL,        NULL},
+{":foo.com/",                           "",     NULL,  NULL,      "foo.com",    -1, "/",       NULL,        NULL},
+{":foo.com\\",                          "",     NULL,  NULL,      "foo.com",    -1, "\\",      NULL,        NULL},
+{":",                                   "",     NULL,  NULL,      NULL,         -1, NULL,      NULL,        NULL},
+{":a",                                  "",     NULL,  NULL,      "a",          -1, NULL,      NULL,        NULL},
+{":/",                                  "",     NULL,  NULL,      NULL,         -1, NULL,      NULL,        NULL},
+{":\\",                                 "",     NULL,  NULL,      NULL,         -1, NULL,      NULL,        NULL},
+{":#",                                  "",     NULL,  NULL,      NULL,         -1, NULL,      NULL,        ""},
+{"#",                                   NULL,   NULL,  NULL,      NULL,         -1, NULL,      NULL,        ""},
+{"#/",                                  NULL,   NULL,  NULL,      NULL,         -1, NULL,      NULL,        "/"},
+{"#\\",                                 NULL,   NULL,  NULL,      NULL,         -1, NULL,      NULL,        "\\"},
+{"#;?",                                 NULL,   NULL,  NULL,      NULL,         -1, NULL,      NULL,        ";?"},
+{"?",                                   NULL,   NULL,  NULL,      NULL,         -1, NULL,      "",          NULL},
+{"/",                                   NULL,   NULL,  NULL,      NULL,         -1, NULL,      NULL,        NULL},
+{":23",                                 "",     NULL,  NULL,      "23",         -1, NULL,      NULL,        NULL},
+{"/:23",                                "/",    NULL,  NULL,      "23",         -1, NULL,      NULL,        NULL},
+{"//",                                  NULL,   NULL,  NULL,      NULL,         -1, NULL,      NULL,        NULL},
+{"::",                                  "",     NULL,  NULL,      NULL,         -1, NULL,      NULL,        NULL},
+{"::23",                                "",     NULL,  NULL,      NULL,         23, NULL,      NULL,        NULL},
+{"foo://",                              "foo",  NULL,  NULL,      NULL,         -1, NULL,      NULL,        NULL},
+
+  // Username/passwords and things that look like them
+{"http://a:b@c:29/d",                   "http", "a",   "b",       "c",          29, "/d",      NULL,        NULL},
+{"http::@c:29",                         "http", "",    "",        "c",          29, NULL,      NULL,        NULL},
+  // ... "]" in the password field isn't allowed, but we tolerate it here...
+{"http://&a:foo(b]c@d:2/",              "http", "&a",  "foo(b]c", "d",           2, "/",       NULL,        NULL},
+{"http://::@c@d:2",                     "http", "",    ":@c",     "d",           2, NULL,      NULL,        NULL},
+{"http://foo.com:b@d/",                 "http", "foo.com", "b",   "d",          -1, "/",       NULL,        NULL},
+
+{"http://foo.com/\\@",                  "http", NULL,  NULL,      "foo.com",    -1, "/\\@",    NULL,        NULL},
+{"http:\\\\foo.com\\",                  "http", NULL,  NULL,      "foo.com",    -1, "\\",      NULL,        NULL},
+{"http:\\\\a\\b:c\\d@foo.com\\",        "http", NULL,  NULL,      "a",          -1, "\\b:c\\d@foo.com\\", NULL,   NULL},
+
+  // Tolerate different numbers of slashes.
+{"foo:/",                               "foo",  NULL,  NULL,      NULL,         -1, NULL,      NULL,        NULL},
+{"foo:/bar.com/",                       "foo",  NULL,  NULL,      "bar.com",    -1, "/",       NULL,        NULL},
+{"foo://///////",                       "foo",  NULL,  NULL,      NULL,         -1, NULL,      NULL,        NULL},
+{"foo://///////bar.com/",               "foo",  NULL,  NULL,      "bar.com",    -1, "/",       NULL,        NULL},
+{"foo:////://///",                      "foo",  NULL,  NULL,      NULL,         -1, "/////",   NULL,        NULL},
+
+  // Raw file paths on Windows aren't handled by the parser.
+{"c:/foo",                              "c",    NULL,  NULL,      "foo",        -1, NULL,      NULL,        NULL},
+{"//foo/bar",                           NULL,   NULL,  NULL,      "foo",        -1, "/bar",    NULL,        NULL},
+
+  // Use the first question mark for the query and the ref.
+{"http://foo/path;a??e#f#g",            "http", NULL,  NULL,      "foo",        -1, "/path;a", "?e",      "f#g"},
+{"http://foo/abcd?efgh?ijkl",           "http", NULL,  NULL,      "foo",        -1, "/abcd",   "efgh?ijkl", NULL},
+{"http://foo/abcd#foo?bar",             "http", NULL,  NULL,      "foo",        -1, "/abcd",   NULL,        "foo?bar"},
+
+  // IPv6, check also interesting uses of colons.
+{"[61:24:74]:98",                       "[61",  NULL,  NULL,      "24:74]",     98, NULL,      NULL,        NULL},
+{"http://[61:27]:98",                   "http", NULL,  NULL,      "[61:27]",    98, NULL,      NULL,        NULL},
+{"http:[61:27]/:foo",                   "http", NULL,  NULL,      "[61:27]",    -1, "/:foo",   NULL,        NULL},
+{"http://[1::2]:3:4",                   "http", NULL,  NULL,      "[1::2]:3",    4, NULL,      NULL,        NULL},
+
+  // Partially-complete IPv6 literals, and related cases.
+{"http://2001::1",                      "http", NULL,  NULL,      "2001:",       1, NULL,      NULL,        NULL},
+{"http://[2001::1",                     "http", NULL,  NULL,      "[2001::1",   -1, NULL,      NULL,        NULL},
+{"http://2001::1]",                     "http", NULL,  NULL,      "2001::1]",   -1, NULL,      NULL,        NULL},
+{"http://2001::1]:80",                  "http", NULL,  NULL,      "2001::1]",   80, NULL,      NULL,        NULL},
+{"http://[2001::1]",                    "http", NULL,  NULL,      "[2001::1]",  -1, NULL,      NULL,        NULL},
+{"http://[2001::1]:80",                 "http", NULL,  NULL,      "[2001::1]",  80, NULL,      NULL,        NULL},
+{"http://[[::]]",                       "http", NULL,  NULL,      "[[::]]",     -1, NULL,      NULL,        NULL},
+
+};
+
+TEST(URLParser, Standard) {
+  // Declared outside for loop to try to catch cases in init() where we forget
+  // to reset something that is reset by the constructor.
+  url_parse::Parsed parsed;
+  for (size_t i = 0; i < arraysize(cases); i++) {
+    const char* url = cases[i].input;
+    url_parse::ParseStandardURL(url, static_cast<int>(strlen(url)), &parsed);
+    int port = url_parse::ParsePort(url, parsed.port);
+
+    EXPECT_TRUE(ComponentMatches(url, cases[i].scheme, parsed.scheme));
+    EXPECT_TRUE(ComponentMatches(url, cases[i].username, parsed.username));
+    EXPECT_TRUE(ComponentMatches(url, cases[i].password, parsed.password));
+    EXPECT_TRUE(ComponentMatches(url, cases[i].host, parsed.host));
+    EXPECT_EQ(cases[i].port, port);
+    EXPECT_TRUE(ComponentMatches(url, cases[i].path, parsed.path));
+    EXPECT_TRUE(ComponentMatches(url, cases[i].query, parsed.query));
+    EXPECT_TRUE(ComponentMatches(url, cases[i].ref, parsed.ref));
+  }
+}
+
+// PathURL --------------------------------------------------------------------
+
+// Various incarnations of path URLs.
+static PathURLParseCase path_cases[] = {
+{"",                                        NULL,          NULL},
+{":",                                       "",            NULL},
+{":/",                                      "",            "/"},
+{"/",                                       NULL,          "/"},
+{" This is \\interesting// \t",             NULL,          "This is \\interesting//"},
+{"about:",                                  "about",       NULL},
+{"about:blank",                             "about",       "blank"},
+{"  about: blank ",                         "about",       " blank"},
+{"javascript :alert(\"He:/l\\l#o?foo\"); ", "javascript ", "alert(\"He:/l\\l#o?foo\");"},
+};
+
+TEST(URLParser, PathURL) {
+  // Declared outside for loop to try to catch cases in init() where we forget
+  // to reset something that is reset by the construtor.
+  url_parse::Parsed parsed;
+  for (size_t i = 0; i < arraysize(path_cases); i++) {
+    const char* url = path_cases[i].input;
+    url_parse::ParsePathURL(url, static_cast<int>(strlen(url)), &parsed);
+
+    EXPECT_TRUE(ComponentMatches(url, path_cases[i].scheme, parsed.scheme));
+    EXPECT_TRUE(ComponentMatches(url, path_cases[i].path, parsed.path));
+
+    // The remaining components are never used for path urls.
+    ExpectInvalidComponent(parsed.username);
+    ExpectInvalidComponent(parsed.password);
+    ExpectInvalidComponent(parsed.host);
+    ExpectInvalidComponent(parsed.port);
+    ExpectInvalidComponent(parsed.query);
+    ExpectInvalidComponent(parsed.ref);
+  }
+}
+
+#ifdef WIN32
+
+// WindowsFile ----------------------------------------------------------------
+
+// Various incarnations of file URLs. These are for Windows only.
+static URLParseCase file_cases[] = {
+{"file:server",              "file", NULL, NULL, "server", -1, NULL,          NULL, NULL},
+{"  file: server  \t",       "file", NULL, NULL, " server",-1, NULL,          NULL, NULL},
+{"FiLe:c|",                  "FiLe", NULL, NULL, NULL,     -1, "c|",          NULL, NULL},
+{"FILE:/\\\\/server/file",   "FILE", NULL, NULL, "server", -1, "/file",       NULL, NULL},
+{"file://server/",           "file", NULL, NULL, "server", -1, "/",           NULL, NULL},
+{"file://localhost/c:/",     "file", NULL, NULL, NULL,     -1, "/c:/",        NULL, NULL},
+{"file://127.0.0.1/c|\\",    "file", NULL, NULL, NULL,     -1, "/c|\\",       NULL, NULL},
+{"file:/",                   "file", NULL, NULL, NULL,     -1, NULL,          NULL, NULL},
+{"file:",                    "file", NULL, NULL, NULL,     -1, NULL,          NULL, NULL},
+  // If there is a Windows drive letter, treat any number of slashes as the
+  // path part.
+{"file:c:\\fo\\b",           "file", NULL, NULL, NULL,     -1, "c:\\fo\\b",   NULL, NULL},
+{"file:/c:\\foo/bar",        "file", NULL, NULL, NULL,     -1, "/c:\\foo/bar",NULL, NULL},
+{"file://c:/f\\b",           "file", NULL, NULL, NULL,     -1, "/c:/f\\b",    NULL, NULL},
+{"file:///C:/foo",           "file", NULL, NULL, NULL,     -1, "/C:/foo",     NULL, NULL},
+{"file://///\\/\\/c:\\f\\b", "file", NULL, NULL, NULL,     -1, "/c:\\f\\b",   NULL, NULL},
+  // If there is not a drive letter, we should treat is as UNC EXCEPT for
+  // three slashes, which we treat as a Unix style path.
+{"file:server/file",         "file", NULL, NULL, "server", -1, "/file",       NULL, NULL},
+{"file:/server/file",        "file", NULL, NULL, "server", -1, "/file",       NULL, NULL},
+{"file://server/file",       "file", NULL, NULL, "server", -1, "/file",       NULL, NULL},
+{"file:///server/file",      "file", NULL, NULL, NULL,     -1, "/server/file",NULL, NULL},
+{"file://\\server/file",     "file", NULL, NULL, NULL,     -1, "\\server/file",NULL, NULL},
+{"file:////server/file",     "file", NULL, NULL, "server", -1, "/file",       NULL, NULL},
+  // Queries and refs are valid for file URLs as well.
+{"file:///C:/foo.html?#",   "file", NULL, NULL,  NULL,     -1, "/C:/foo.html",  "",   ""},
+{"file:///C:/foo.html?query=yes#ref", "file", NULL, NULL, NULL, -1, "/C:/foo.html", "query=yes", "ref"},
+};
+
+TEST(URLParser, WindowsFile) {
+  // Declared outside for loop to try to catch cases in init() where we forget
+  // to reset something that is reset by the construtor.
+  url_parse::Parsed parsed;
+  for (int i = 0; i < arraysize(file_cases); i++) {
+    const char* url = file_cases[i].input;
+    url_parse::ParseFileURL(url, static_cast<int>(strlen(url)), &parsed);
+    int port = url_parse::ParsePort(url, parsed.port);
+
+    EXPECT_TRUE(ComponentMatches(url, file_cases[i].scheme, parsed.scheme));
+    EXPECT_TRUE(ComponentMatches(url, file_cases[i].username, parsed.username));
+    EXPECT_TRUE(ComponentMatches(url, file_cases[i].password, parsed.password));
+    EXPECT_TRUE(ComponentMatches(url, file_cases[i].host, parsed.host));
+    EXPECT_EQ(file_cases[i].port, port);
+    EXPECT_TRUE(ComponentMatches(url, file_cases[i].path, parsed.path));
+    EXPECT_TRUE(ComponentMatches(url, file_cases[i].query, parsed.query));
+    EXPECT_TRUE(ComponentMatches(url, file_cases[i].ref, parsed.ref));
+  }
+}
+
+#endif  // WIN32
+
+TEST(URLParser, ExtractFileName) {
+  struct FileCase {
+    const char* input;
+    const char* expected;
+  } file_cases[] = {
+    {"http://www.google.com", NULL},
+    {"http://www.google.com/", ""},
+    {"http://www.google.com/search", "search"},
+    {"http://www.google.com/search/", ""},
+    {"http://www.google.com/foo/bar.html?baz=22", "bar.html"},
+    {"http://www.google.com/foo/bar.html#ref", "bar.html"},
+    {"http://www.google.com/search/;param", ""},
+    {"http://www.google.com/foo/bar.html;param#ref", "bar.html"},
+    {"http://www.google.com/foo/bar.html;foo;param#ref", "bar.html;foo"},
+    {"http://www.google.com/foo/bar.html?query#ref", "bar.html"},
+  };
+
+  for (size_t i = 0; i < ARRAYSIZE(file_cases); i++) {
+    const char* url = file_cases[i].input;
+    int len = static_cast<int>(strlen(url));
+
+    url_parse::Parsed parsed;
+    url_parse::ParseStandardURL(url, len, &parsed);
+
+    url_parse::Component file_name;
+    url_parse::ExtractFileName(url, parsed.path, &file_name);
+
+    EXPECT_TRUE(ComponentMatches(url, file_cases[i].expected, file_name));
+  }
+}
+
+// Returns true if the parameter with index |parameter| in the given URL's
+// query string. The expected key can be NULL to indicate no such key index
+// should exist. The parameter number is 1-based.
+static bool NthParameterIs(const char* url,
+                           int parameter,
+                           const char* expected_key,
+                           const char* expected_value) {
+  url_parse::Parsed parsed;
+  url_parse::ParseStandardURL(url, static_cast<int>(strlen(url)), &parsed);
+
+  url_parse::Component query = parsed.query;
+
+  for (int i = 1; i <= parameter; i++) {
+    url_parse::Component key, value;
+    if (!url_parse::ExtractQueryKeyValue(url, &query, &key, &value)) {
+      if (parameter >= i && !expected_key)
+        return true;  // Expected nonexistant key, got one.
+      return false;  // Not enough keys.
+    }
+
+    if (i == parameter) {
+      if (!expected_key)
+        return false;
+
+      if (strncmp(&url[key.begin], expected_key, key.len) != 0)
+        return false;
+      if (strncmp(&url[value.begin], expected_value, value.len) != 0)
+        return false;
+      return true;
+    }
+  }
+  return expected_key == NULL;  // We didn't find that many parameters.
+}
+
+TEST(URLParser, ExtractQueryKeyValue) {
+  EXPECT_TRUE(NthParameterIs("http://www.google.com", 1, NULL, NULL));
+
+  // Basic case.
+  char a[] = "http://www.google.com?arg1=1&arg2=2&bar";
+  EXPECT_TRUE(NthParameterIs(a, 1, "arg1", "1"));
+  EXPECT_TRUE(NthParameterIs(a, 2, "arg2", "2"));
+  EXPECT_TRUE(NthParameterIs(a, 3, "bar", ""));
+  EXPECT_TRUE(NthParameterIs(a, 4, NULL, NULL));
+
+  // Empty param at the end.
+  char b[] = "http://www.google.com?foo=bar&";
+  EXPECT_TRUE(NthParameterIs(b, 1, "foo", "bar"));
+  EXPECT_TRUE(NthParameterIs(b, 2, NULL, NULL));
+
+  // Empty param at the beginning.
+  char c[] = "http://www.google.com?&foo=bar";
+  EXPECT_TRUE(NthParameterIs(c, 1, "", ""));
+  EXPECT_TRUE(NthParameterIs(c, 2, "foo", "bar"));
+  EXPECT_TRUE(NthParameterIs(c, 3, NULL, NULL));
+
+  // Empty key with value.
+  char d[] = "http://www.google.com?=foo";
+  EXPECT_TRUE(NthParameterIs(d, 1, "", "foo"));
+  EXPECT_TRUE(NthParameterIs(d, 2, NULL, NULL));
+
+  // Empty value with key.
+  char e[] = "http://www.google.com?foo=";
+  EXPECT_TRUE(NthParameterIs(e, 1, "foo", ""));
+  EXPECT_TRUE(NthParameterIs(e, 2, NULL, NULL));
+
+  // Empty key and values.
+  char f[] = "http://www.google.com?&&==&=";
+  EXPECT_TRUE(NthParameterIs(f, 1, "", ""));
+  EXPECT_TRUE(NthParameterIs(f, 2, "", ""));
+  EXPECT_TRUE(NthParameterIs(f, 3, "", "="));
+  EXPECT_TRUE(NthParameterIs(f, 4, "", ""));
+  EXPECT_TRUE(NthParameterIs(f, 5, NULL, NULL));
+}
+
+// MailtoURL --------------------------------------------------------------------
+
+static MailtoURLParseCase mailto_cases[] = {
+//|input                       |scheme   |path               |query
+{"mailto:foo@gmail.com",        "mailto", "foo@gmail.com",    NULL},
+{"  mailto: to  \t",            "mailto", " to",              NULL},
+{"mailto:addr1%2C%20addr2 ",    "mailto", "addr1%2C%20addr2", NULL},
+{"Mailto:addr1, addr2 ",        "Mailto", "addr1, addr2",     NULL},
+{"mailto:addr1:addr2 ",         "mailto", "addr1:addr2",      NULL},
+{"mailto:?to=addr1,addr2",      "mailto", NULL,               "to=addr1,addr2"},
+{"mailto:?to=addr1%2C%20addr2", "mailto", NULL,               "to=addr1%2C%20addr2"},
+{"mailto:addr1?to=addr2",       "mailto", "addr1",            "to=addr2"},
+{"mailto:?body=#foobar#",       "mailto", NULL,               "body=#foobar#",},
+{"mailto:#?body=#foobar#",      "mailto", "#",                "body=#foobar#"},
+};
+
+TEST(URLParser, MailtoUrl) {
+  // Declared outside for loop to try to catch cases in init() where we forget
+  // to reset something that is reset by the construtor.
+  url_parse::Parsed parsed;
+  for (size_t i = 0; i < arraysize(mailto_cases); ++i) {
+    const char* url = mailto_cases[i].input;
+    url_parse::ParseMailtoURL(url, static_cast<int>(strlen(url)), &parsed);
+    int port = url_parse::ParsePort(url, parsed.port);
+
+    EXPECT_TRUE(ComponentMatches(url, mailto_cases[i].scheme, parsed.scheme));
+    EXPECT_TRUE(ComponentMatches(url, mailto_cases[i].path, parsed.path));
+    EXPECT_TRUE(ComponentMatches(url, mailto_cases[i].query, parsed.query));
+    EXPECT_EQ(url_parse::PORT_UNSPECIFIED, port);
+
+    // The remaining components are never used for mailto urls.
+    ExpectInvalidComponent(parsed.username);
+    ExpectInvalidComponent(parsed.password);
+    ExpectInvalidComponent(parsed.port);
+    ExpectInvalidComponent(parsed.ref);
+  }
+}
+
+// Various incarnations of filesystem URLs.
+static FileSystemURLParseCase filesystem_cases[] = {
+  // Regular URL with all the parts
+{"filesystem:http://user:pass@foo:21/temporary/bar;par?b#c", "http",  "user", "pass", "foo", 21, "/temporary",  "/bar;par",  "b",  "c"},
+{"filesystem:https://foo/persistent/bar;par/",               "https", NULL,   NULL,   "foo", -1, "/persistent", "/bar;par/", NULL, NULL},
+{"filesystem:file:///persistent/bar;par/",                   "file", NULL,    NULL,   NULL,  -1, "/persistent", "/bar;par/", NULL, NULL},
+{"filesystem:file:///persistent/bar;par/?query#ref",                   "file", NULL,    NULL,   NULL,  -1, "/persistent", "/bar;par/", "query", "ref"},
+{"filesystem:file:///persistent",                            "file", NULL,    NULL,   NULL,  -1, "/persistent", "",        NULL, NULL},
+};
+
+TEST(URLParser, FileSystemURL) {
+  // Declared outside for loop to try to catch cases in init() where we forget
+  // to reset something that is reset by the construtor.
+  url_parse::Parsed parsed;
+  for (size_t i = 0; i < arraysize(filesystem_cases); i++) {
+    const FileSystemURLParseCase* parsecase = &filesystem_cases[i];
+    const char* url = parsecase->input;
+    url_parse::ParseFileSystemURL(url, static_cast<int>(strlen(url)), &parsed);
+
+    EXPECT_TRUE(ComponentMatches(url, "filesystem", parsed.scheme));
+    EXPECT_EQ(!parsecase->inner_scheme, !parsed.inner_parsed());
+    // Only check the inner_parsed if there is one.
+    if (parsed.inner_parsed()) {
+      EXPECT_TRUE(ComponentMatches(url, parsecase->inner_scheme,
+          parsed.inner_parsed()->scheme));
+      EXPECT_TRUE(ComponentMatches(url, parsecase->inner_username,
+          parsed.inner_parsed()->username));
+      EXPECT_TRUE(ComponentMatches(url, parsecase->inner_password,
+          parsed.inner_parsed()->password));
+      EXPECT_TRUE(ComponentMatches(url, parsecase->inner_host,
+          parsed.inner_parsed()->host));
+      int port = url_parse::ParsePort(url, parsed.inner_parsed()->port);
+      EXPECT_EQ(parsecase->inner_port, port);
+
+      // The remaining components are never used for filesystem urls.
+      ExpectInvalidComponent(parsed.inner_parsed()->query);
+      ExpectInvalidComponent(parsed.inner_parsed()->ref);
+    }
+
+    EXPECT_TRUE(ComponentMatches(url, parsecase->path, parsed.path));
+    EXPECT_TRUE(ComponentMatches(url, parsecase->query, parsed.query));
+    EXPECT_TRUE(ComponentMatches(url, parsecase->ref, parsed.ref));
+
+    // The remaining components are never used for filesystem urls.
+    ExpectInvalidComponent(parsed.username);
+    ExpectInvalidComponent(parsed.password);
+    ExpectInvalidComponent(parsed.host);
+    ExpectInvalidComponent(parsed.port);
+  }
+}
+