mirror of
https://github.com/RPCSX/llvm.git
synced 2024-12-11 13:46:13 +00:00
63b14baf79
This operation is analogous to its counterpart in DenseMap: It allows lookup via cheap-to-construct keys (provided that getHashValue and isEqual are implemented for the cheap key-type in the DenseMapInfo specialization). Thanks to Chandler for the review. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220168 91177308-0d34-0410-b5e6-96231b3b80d8
69 lines
1.8 KiB
C++
69 lines
1.8 KiB
C++
//===- llvm/unittest/ADT/DenseSetTest.cpp - DenseSet unit tests --*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "gtest/gtest.h"
|
|
#include "llvm/ADT/DenseSet.h"
|
|
|
|
using namespace llvm;
|
|
|
|
namespace {
|
|
|
|
// Test fixture
|
|
class DenseSetTest : public testing::Test {
|
|
};
|
|
|
|
// Test hashing with a set of only two entries.
|
|
TEST_F(DenseSetTest, DoubleEntrySetTest) {
|
|
llvm::DenseSet<unsigned> set(2);
|
|
set.insert(0);
|
|
set.insert(1);
|
|
// Original failure was an infinite loop in this call:
|
|
EXPECT_EQ(0u, set.count(2));
|
|
}
|
|
|
|
struct TestDenseSetInfo {
|
|
static inline unsigned getEmptyKey() { return ~0; }
|
|
static inline unsigned getTombstoneKey() { return ~0U - 1; }
|
|
static unsigned getHashValue(const unsigned& Val) { return Val * 37U; }
|
|
static unsigned getHashValue(const char* Val) {
|
|
return (unsigned)(Val[0] - 'a') * 37U;
|
|
}
|
|
static bool isEqual(const unsigned& LHS, const unsigned& RHS) {
|
|
return LHS == RHS;
|
|
}
|
|
static bool isEqual(const char* LHS, const unsigned& RHS) {
|
|
return (unsigned)(LHS[0] - 'a') == RHS;
|
|
}
|
|
};
|
|
|
|
TEST(DenseSetCustomTest, FindAsTest) {
|
|
DenseSet<unsigned, TestDenseSetInfo> set;
|
|
set.insert(0);
|
|
set.insert(1);
|
|
set.insert(2);
|
|
|
|
// Size tests
|
|
EXPECT_EQ(3u, set.size());
|
|
|
|
// Normal lookup tests
|
|
EXPECT_EQ(1u, set.count(1));
|
|
EXPECT_EQ(0u, *set.find(0));
|
|
EXPECT_EQ(1u, *set.find(1));
|
|
EXPECT_EQ(2u, *set.find(2));
|
|
EXPECT_TRUE(set.find(3) == set.end());
|
|
|
|
// find_as() tests
|
|
EXPECT_EQ(0u, *set.find_as("a"));
|
|
EXPECT_EQ(1u, *set.find_as("b"));
|
|
EXPECT_EQ(2u, *set.find_as("c"));
|
|
EXPECT_TRUE(set.find_as("d") == set.end());
|
|
}
|
|
|
|
}
|