llvm/unittests/ADT/PackedVectorTest.cpp

   1 //===- llvm/unittest/ADT/PackedVectorTest.cpp - PackedVector tests --------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // BitVectorTest tests fail on PowerPC for unknown reasons, so disable this
  10 // as well since it depends on a BitVector.
  11 #ifndef __powerpc__
  12
  13 #include "llvm/ADT/PackedVector.h"
  14 #include "gtest/gtest.h"
  15
  16 using namespace llvm;
  17
  18 namespace {
  19
  20 TEST(PackedVectorTest, Operation) {
  21   PackedVector<unsigned, 2> Vec;
  22   EXPECT_EQ(0U, Vec.size());
  23   EXPECT_TRUE(Vec.empty());
  24
  25   Vec.resize(5);
  26   EXPECT_EQ(5U, Vec.size());
  27   EXPECT_FALSE(Vec.empty());
  28
  29   Vec.resize(11);
  30   EXPECT_EQ(11U, Vec.size());
  31   EXPECT_FALSE(Vec.empty());
  32
  33   PackedVector<unsigned, 2> Vec2(3);
  34   EXPECT_EQ(3U, Vec2.size());
  35   EXPECT_FALSE(Vec2.empty());
  36
  37   Vec.clear();
  38   EXPECT_EQ(0U, Vec.size());
  39   EXPECT_TRUE(Vec.empty());
  40
  41   Vec.push_back(2);
  42   Vec.push_back(0);
  43   Vec.push_back(1);
  44   Vec.push_back(3);
  45
  46   EXPECT_EQ(2U, Vec[0]);
  47   EXPECT_EQ(0U, Vec[1]);
  48   EXPECT_EQ(1U, Vec[2]);
  49   EXPECT_EQ(3U, Vec[3]);
  50
  51   EXPECT_FALSE(Vec == Vec2);
  52   EXPECT_TRUE(Vec != Vec2);
  53
  54   Vec = Vec2;
  55   EXPECT_TRUE(Vec == Vec2);
  56   EXPECT_FALSE(Vec != Vec2);
  57
  58   Vec[1] = 1;
  59   Vec2[1] = 2;
  60   Vec |= Vec2;
  61   EXPECT_EQ(3U, Vec[1]);
  62 }
  63
  64 #ifdef EXPECT_DEBUG_DEATH
  65
  66 TEST(PackedVectorTest, UnsignedValues) {
  67   PackedVector<unsigned, 2> Vec(1);
  68   Vec[0] = 0;
  69   Vec[0] = 1;
  70   Vec[0] = 2;
  71   Vec[0] = 3;
  72   EXPECT_DEBUG_DEATH(Vec[0] = 4, "value is too big");
  73   EXPECT_DEBUG_DEATH(Vec[0] = -1, "value is too big");
  74   EXPECT_DEBUG_DEATH(Vec[0] = 0x100, "value is too big");
  75
  76   PackedVector<unsigned, 3> Vec2(1);
  77   Vec2[0] = 0;
  78   Vec2[0] = 7;
  79   EXPECT_DEBUG_DEATH(Vec[0] = 8, "value is too big");
  80 }
  81
  82 TEST(PackedVectorTest, SignedValues) {
  83   PackedVector<signed, 2> Vec(1);
  84   Vec[0] = -2;
  85   Vec[0] = -1;
  86   Vec[0] = 0;
  87   Vec[0] = 1;
  88   EXPECT_DEBUG_DEATH(Vec[0] = -3, "value is too big");
  89   EXPECT_DEBUG_DEATH(Vec[0] = 2, "value is too big");
  90
  91   PackedVector<signed, 3> Vec2(1);
  92   Vec2[0] = -4;
  93   Vec2[0] = 3;
  94   EXPECT_DEBUG_DEATH(Vec[0] = -5, "value is too big");
  95   EXPECT_DEBUG_DEATH(Vec[0] = 4, "value is too big");
  96 }
  97
  98 #endif
  99
 100 }
 101
 102 #endif