unittests/ADT/PackedVectorTest.cpp

   1 //===- llvm/unittest/ADT/PackedVectorTest.cpp - PackedVector 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 // BitVectorTest tests fail on PowerPC for unknown reasons, so disable this
  11 // as well since it depends on a BitVector.
  12 #ifndef __ppc__
  13
  14 #include "llvm/ADT/PackedVector.h"
  15 #include "gtest/gtest.h"
  16
  17 using namespace llvm;
  18
  19 namespace {
  20
  21 TEST(PackedVectorTest, Operation) {
  22   PackedVector<unsigned, 2> Vec;
  23   EXPECT_EQ(0U, Vec.size());
  24   EXPECT_TRUE(Vec.empty());
  25
  26   Vec.resize(5);
  27   EXPECT_EQ(5U, Vec.size());
  28   EXPECT_FALSE(Vec.empty());
  29
  30   Vec.resize(11);
  31   EXPECT_EQ(11U, Vec.size());
  32   EXPECT_FALSE(Vec.empty());
  33
  34   PackedVector<unsigned, 2> Vec2(3);
  35   EXPECT_EQ(3U, Vec2.size());
  36   EXPECT_FALSE(Vec2.empty());
  37
  38   Vec.clear();
  39   EXPECT_EQ(0U, Vec.size());
  40   EXPECT_TRUE(Vec.empty());
  41
  42   Vec.push_back(2);
  43   Vec.push_back(0);
  44   Vec.push_back(1);
  45   Vec.push_back(3);
  46
  47   EXPECT_EQ(2U, Vec[0]);
  48   EXPECT_EQ(0U, Vec[1]);
  49   EXPECT_EQ(1U, Vec[2]);
  50   EXPECT_EQ(3U, Vec[3]);
  51
  52   EXPECT_FALSE(Vec == Vec2);
  53   EXPECT_TRUE(Vec != Vec2);
  54
  55   Vec2.swap(Vec);
  56   EXPECT_EQ(3U, Vec.size());
  57   EXPECT_FALSE(Vec.empty());
  58   EXPECT_EQ(0U, Vec[0]);
  59   EXPECT_EQ(0U, Vec[1]);
  60   EXPECT_EQ(0U, Vec[2]);
  61
  62   EXPECT_EQ(2U, Vec2[0]);
  63   EXPECT_EQ(0U, Vec2[1]);
  64   EXPECT_EQ(1U, Vec2[2]);
  65   EXPECT_EQ(3U, Vec2[3]);
  66
  67   Vec = Vec2;
  68   EXPECT_TRUE(Vec == Vec2);
  69   EXPECT_FALSE(Vec != Vec2);
  70
  71   Vec[1] = 1;
  72   Vec2[1] = 2;
  73   Vec |= Vec2;
  74   EXPECT_EQ(3U, Vec[1]);
  75 }
  76
  77 #ifdef EXPECT_DEBUG_DEATH
  78
  79 TEST(PackedVectorTest, UnsignedValues) {
  80   PackedVector<unsigned, 2> Vec(1);
  81   Vec[0] = 0;
  82   Vec[0] = 1;
  83   Vec[0] = 2;
  84   Vec[0] = 3;
  85   EXPECT_DEBUG_DEATH(Vec[0] = 4, "value is too big");
  86   EXPECT_DEBUG_DEATH(Vec[0] = -1, "value is too big");
  87   EXPECT_DEBUG_DEATH(Vec[0] = 0x100, "value is too big");
  88
  89   PackedVector<unsigned, 3> Vec2(1);
  90   Vec2[0] = 0;
  91   Vec2[0] = 7;
  92   EXPECT_DEBUG_DEATH(Vec[0] = 8, "value is too big");
  93 }
  94
  95 TEST(PackedVectorTest, SignedValues) {
  96   PackedVector<signed, 2> Vec(1);
  97   Vec[0] = -2;
  98   Vec[0] = -1;
  99   Vec[0] = 0;
 100   Vec[0] = 1;
 101   EXPECT_DEBUG_DEATH(Vec[0] = -3, "value is too big");
 102   EXPECT_DEBUG_DEATH(Vec[0] = 2, "value is too big");
 103
 104   PackedVector<signed, 3> Vec2(1);
 105   Vec2[0] = -4;
 106   Vec2[0] = 3;
 107   EXPECT_DEBUG_DEATH(Vec[0] = -5, "value is too big");
 108   EXPECT_DEBUG_DEATH(Vec[0] = 4, "value is too big");
 109 }
 110
 111 #endif
 112
 113 }
 114
 115 #endif