[libfuzzer] support of custom libfuzzer options via .options file.

testing/libfuzzer/tests/fuzzer_launcher_test.cc

 // Copyright 2015 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.
 
 // Fuzzer launcher script tests.
 
 #include <string>
 #include <vector>
 
 
@@ skipping 19 matching lines @@
   std::vector<std::string> fuzzer_args = base::SplitString(
       output, "\n\r", base::TRIM_WHITESPACE, base::SPLIT_WANT_NONEMPTY);
 
   EXPECT_EQ(3UL, fuzzer_args.size());
 
   EXPECT_THAT(fuzzer_args[0], EndsWith("print_args.py"));
   EXPECT_THAT(fuzzer_args[1], StartsWith("-dict"));
   EXPECT_THAT(fuzzer_args[1], EndsWith("test_dict"));
   EXPECT_EQ("-custom_option", fuzzer_args[2]);
 }
+
+TEST(FuzzerLauncherTest, Params) {
+  base::FilePath exe_path;
+  PathService::Get(base::FILE_EXE, &exe_path);
+  std::string launcher_path =
+    exe_path.DirName().Append("test_params_launcher.sh").value();
+
+  std::string output;
+  base::CommandLine cmd({{launcher_path, "-custom_option"}});
+  bool success = base::GetAppOutputAndError(cmd, &output);
+  EXPECT_TRUE(success);
+  std::vector<std::string> fuzzer_args = base::SplitString(
+      output, "\n\r", base::TRIM_WHITESPACE, base::SPLIT_WANT_NONEMPTY);
+
+  EXPECT_EQ(3UL, fuzzer_args.size());
+
+  EXPECT_THAT(fuzzer_args[0], EndsWith("print_args.py"));
+  EXPECT_EQ("-custom_option", fuzzer_args[1]);
+  EXPECT_THAT(fuzzer_args[2], StartsWith("-test_param"));
+  EXPECT_THAT(fuzzer_args[2], EndsWith("test_value"));
+}
+
+TEST(FuzzerLauncherTest, DictAndParams) {
+  base::FilePath exe_path;
+  PathService::Get(base::FILE_EXE, &exe_path);
+  std::string launcher_path =
+    exe_path.DirName().Append("test_dict_and_params_launcher.sh").value();
+
+  std::string output;
+  base::CommandLine cmd({{launcher_path, "-custom_option"}});
+  bool success = base::GetAppOutputAndError(cmd, &output);
+  EXPECT_TRUE(success);
+  std::vector<std::string> fuzzer_args = base::SplitString(
+      output, "\n\r", base::TRIM_WHITESPACE, base::SPLIT_WANT_NONEMPTY);
+
+  EXPECT_EQ(4UL, fuzzer_args.size());
+
+  EXPECT_THAT(fuzzer_args[0], EndsWith("print_args.py"));
+  EXPECT_THAT(fuzzer_args[1], StartsWith("-dict"));
+  EXPECT_THAT(fuzzer_args[1], EndsWith("test_dict"));
+  EXPECT_EQ("-custom_option", fuzzer_args[2]);
+  EXPECT_THAT(fuzzer_args[3], StartsWith("-test_param"));
+  EXPECT_THAT(fuzzer_args[3], EndsWith("test_value"));
+}