unittests/ADT/ImmutableMapTest.cpp

   1 //===----------- ImmutableMapTest.cpp - ImmutableMap unit 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 "gtest/gtest.h"
  11 #include "llvm/ADT/ImmutableMap.h"
  12
  13 using namespace llvm;
  14
  15 namespace {
  16
  17 TEST(ImmutableMapTest, EmptyIntMapTest) {
  18   ImmutableMap<int, int>::Factory f;
  19
  20   EXPECT_TRUE(f.getEmptyMap() == f.getEmptyMap());
  21   EXPECT_FALSE(f.getEmptyMap() != f.getEmptyMap());
  22   EXPECT_TRUE(f.getEmptyMap().isEmpty());
  23
  24   ImmutableMap<int, int> S = f.getEmptyMap();
  25   EXPECT_EQ(0u, S.getHeight());
  26   EXPECT_TRUE(S.begin() == S.end());
  27   EXPECT_FALSE(S.begin() != S.end());
  28 }
  29
  30 TEST(ImmutableMapTest, MultiElemIntMapTest) {
  31   ImmutableMap<int, int>::Factory f;
  32   ImmutableMap<int, int> S = f.getEmptyMap();
  33
  34   ImmutableMap<int, int> S2 = f.add(f.add(f.add(S, 3, 10), 4, 11), 5, 12);
  35
  36   EXPECT_TRUE(S.isEmpty());
  37   EXPECT_FALSE(S2.isEmpty());
  38
  39   EXPECT_EQ(nullptr, S.lookup(3));
  40   EXPECT_EQ(nullptr, S.lookup(9));
  41
  42   EXPECT_EQ(10, *S2.lookup(3));
  43   EXPECT_EQ(11, *S2.lookup(4));
  44   EXPECT_EQ(12, *S2.lookup(5));
  45
  46   EXPECT_EQ(5, S2.getMaxElement()->first);
  47   EXPECT_EQ(3U, S2.getHeight());
  48 }
  49
  50 }