unittests/Support/DwarfTest.cpp

   1 //===- unittest/Support/DwarfTest.cpp - Dwarf support tests ---------------===//
   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 #include "llvm/Support/Dwarf.h"
  11 #include "gtest/gtest.h"
  12
  13 using namespace llvm;
  14 using namespace llvm::dwarf;
  15
  16 namespace {
  17
  18 TEST(DwarfTest, TagStringOnInvalid) {
  19   // This is invalid, so it shouldn't be stringified.
  20   EXPECT_EQ(nullptr, TagString(DW_TAG_invalid));
  21
  22   // These aren't really tags: they describe ranges within tags.  They
  23   // shouldn't be stringified either.
  24   EXPECT_EQ(nullptr, TagString(DW_TAG_lo_user));
  25   EXPECT_EQ(nullptr, TagString(DW_TAG_hi_user));
  26   EXPECT_EQ(nullptr, TagString(DW_TAG_user_base));
  27 }
  28
  29 TEST(DwarfTest, getTag) {
  30   // A couple of valid tags.
  31   EXPECT_EQ(DW_TAG_array_type, getTag("DW_TAG_array_type"));
  32   EXPECT_EQ(DW_TAG_module, getTag("DW_TAG_module"));
  33
  34   // Invalid tags.
  35   EXPECT_EQ(DW_TAG_invalid, getTag("DW_TAG_invalid"));
  36   EXPECT_EQ(DW_TAG_invalid, getTag("DW_TAG_madeuptag"));
  37   EXPECT_EQ(DW_TAG_invalid, getTag("something else"));
  38
  39   // Tag range markers should not be recognized.
  40   EXPECT_EQ(DW_TAG_invalid, getTag("DW_TAG_lo_user"));
  41   EXPECT_EQ(DW_TAG_invalid, getTag("DW_TAG_hi_user"));
  42   EXPECT_EQ(DW_TAG_invalid, getTag("DW_TAG_user_base"));
  43 }
  44
  45 } // end namespace