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      1 //===-- sanitizer_flags_test.cc -------------------------------------------===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 //
     10 // This file is a part of ThreadSanitizer/AddressSanitizer runtime.
     11 //
     12 //===----------------------------------------------------------------------===//
     13 #include "sanitizer_common/sanitizer_common.h"
     14 #include "sanitizer_common/sanitizer_flags.h"
     15 #include "gtest/gtest.h"
     16 
     17 #include <string.h>
     18 
     19 namespace __sanitizer {
     20 
     21 static const char kFlagName[] = "flag_name";
     22 
     23 template <typename T>
     24 static void TestFlag(T start_value, const char *env, T final_value) {
     25   T flag = start_value;
     26   ParseFlag(env, &flag, kFlagName);
     27   EXPECT_EQ(final_value, flag);
     28 }
     29 
     30 static void TestStrFlag(const char *start_value, const char *env,
     31                         const char *final_value) {
     32   const char *flag = start_value;
     33   ParseFlag(env, &flag, kFlagName);
     34   EXPECT_STREQ(final_value, flag);
     35 }
     36 
     37 TEST(SanitizerCommon, BooleanFlags) {
     38   TestFlag(true, "--flag_name", true);
     39   TestFlag(false, "flag_name", false);
     40   TestFlag(false, "--flag_name=1", true);
     41   TestFlag(true, "asdas flag_name=0 asdas", false);
     42   TestFlag(true, "    --flag_name=0   ", false);
     43   TestFlag(false, "flag_name=yes", true);
     44   TestFlag(false, "flag_name=true", true);
     45   TestFlag(true, "flag_name=no", false);
     46   TestFlag(true, "flag_name=false", false);
     47 }
     48 
     49 TEST(SanitizerCommon, IntFlags) {
     50   TestFlag(-11, 0, -11);
     51   TestFlag(-11, "flag_name", 0);
     52   TestFlag(-11, "--flag_name=", 0);
     53   TestFlag(-11, "--flag_name=42", 42);
     54   TestFlag(-11, "--flag_name=-42", -42);
     55 }
     56 
     57 TEST(SanitizerCommon, StrFlags) {
     58   TestStrFlag("zzz", 0, "zzz");
     59   TestStrFlag("zzz", "flag_name", "");
     60   TestStrFlag("zzz", "--flag_name=", "");
     61   TestStrFlag("", "--flag_name=abc", "abc");
     62   TestStrFlag("", "--flag_name='abc zxc'", "abc zxc");
     63   TestStrFlag("", "--flag_name='abc zxcc'", "abc zxcc");
     64   TestStrFlag("", "--flag_name=\"abc qwe\" asd", "abc qwe");
     65 }
     66 
     67 }  // namespace __sanitizer
     68