Add unit test for DefaultSchemeHostPort

url/url_canon_unittest.cc

 // Copyright 2013 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 <errno.h>
 #include <stddef.h>
 
 #include "base/macros.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "url/third_party/mozilla/url_parse.h"
@@ skipping 2155 matching lines @@
   ReplaceFileURL(src, parsed, repl, NULL, &repl_output, &repl_parsed);
   repl_output.Complete();
 
   // Generate the expected string and check.
   std::string expected("file:///foo?");
   for (size_t i = 0; i < new_query.length(); i++)
     expected.push_back('a');
   EXPECT_TRUE(expected == repl_str);
 }
 
+TEST(URLCanonTest, DefaultPortForScheme) {
+  struct TestCases {
+    const char* scheme;
+    const int expected_port;
+  } cases[]{
+      {"http", 80},
+      {"https", 443},
+      {"ftp", 21},
+      {"ws", 80},
+      {"wss", 443},
+      {"gopher", 70},
+      {"fake-scheme", PORT_UNSPECIFIED},
+      {"HTTP", PORT_UNSPECIFIED},
+      {"HTTPS", PORT_UNSPECIFIED},
+      {"FTP", PORT_UNSPECIFIED},
+      {"WS", PORT_UNSPECIFIED},
+      {"WSS", PORT_UNSPECIFIED},
+      {"GOPHER", PORT_UNSPECIFIED},
+  };
+
+  for (auto& test_case : cases) {
+    SCOPED_TRACE(test_case.scheme);
+    EXPECT_EQ(test_case.expected_port,
+              DefaultPortForScheme(test_case.scheme, strlen(test_case.scheme)));
+  }
+}
+
 }  // namespace url