unittests/ADT/SmallStringTest.cpp

   1 //===- llvm/unittest/ADT/SmallStringTest.cpp ------------------------------===//
   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 // SmallString unit tests.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "gtest/gtest.h"
  15 #include "llvm/ADT/SmallString.h"
  16 #include <stdarg.h>
  17 #include <climits>
  18 #include <cstring>
  19
  20 using namespace llvm;
  21
  22 namespace {
  23
  24 // Test fixture class
  25 class SmallStringTest : public testing::Test {
  26 protected:
  27   typedef SmallString<40> StringType;
  28
  29   StringType theString;
  30
  31   void assertEmpty(StringType & v) {
  32     // Size tests
  33     EXPECT_EQ(0u, v.size());
  34     EXPECT_TRUE(v.empty());
  35     // Iterator tests
  36     EXPECT_TRUE(v.begin() == v.end());
  37   }
  38 };
  39
  40 // New string test.
  41 TEST_F(SmallStringTest, EmptyStringTest) {
  42   SCOPED_TRACE("EmptyStringTest");
  43   assertEmpty(theString);
  44   EXPECT_TRUE(theString.rbegin() == theString.rend());
  45 }
  46
  47 TEST_F(SmallStringTest, AppendUINT64_MAX) {
  48   SCOPED_TRACE("AppendUINT64_MAX");
  49   theString.clear();
  50   assertEmpty(theString);
  51   theString.append_uint(UINT64_MAX);
  52   EXPECT_TRUE(0 == strcmp(theString.c_str(),"18446744073709551615"));
  53 }
  54
  55 TEST_F(SmallStringTest, AppendINT64_MIN) {
  56   SCOPED_TRACE("AppendINT64_MIN");
  57   theString.clear();
  58   assertEmpty(theString);
  59   theString.append_sint(INT64_MIN);
  60   EXPECT_TRUE(0 == strcmp(theString.c_str(),"-9223372036854775808"));
  61 }
  62
  63 }
  64