llvm-for-llvmta/unittests/ADT/ImmutableSetTest.cpp

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//===----------- ImmutableSetTest.cpp - ImmutableSet unit tests ------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "llvm/ADT/ImmutableSet.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
class ImmutableSetTest : public testing::Test {
protected:
// for callback tests
static char buffer[10];
struct MyIter {
int counter;
char *ptr;
MyIter() : counter(0), ptr(buffer) {
for (unsigned i=0; i<sizeof(buffer);++i) buffer[i]='\0';
}
void operator()(char c) {
*ptr++ = c;
++counter;
}
};
};
char ImmutableSetTest::buffer[10];
TEST_F(ImmutableSetTest, EmptyIntSetTest) {
ImmutableSet<int>::Factory f;
EXPECT_TRUE(f.getEmptySet() == f.getEmptySet());
EXPECT_FALSE(f.getEmptySet() != f.getEmptySet());
EXPECT_TRUE(f.getEmptySet().isEmpty());
ImmutableSet<int> S = f.getEmptySet();
EXPECT_EQ(0u, S.getHeight());
EXPECT_TRUE(S.begin() == S.end());
EXPECT_FALSE(S.begin() != S.end());
}
TEST_F(ImmutableSetTest, OneElemIntSetTest) {
ImmutableSet<int>::Factory f;
ImmutableSet<int> S = f.getEmptySet();
ImmutableSet<int> S2 = f.add(S, 3);
EXPECT_TRUE(S.isEmpty());
EXPECT_FALSE(S2.isEmpty());
EXPECT_FALSE(S == S2);
EXPECT_TRUE(S != S2);
EXPECT_FALSE(S.contains(3));
EXPECT_TRUE(S2.contains(3));
EXPECT_FALSE(S2.begin() == S2.end());
EXPECT_TRUE(S2.begin() != S2.end());
ImmutableSet<int> S3 = f.add(S, 2);
EXPECT_TRUE(S.isEmpty());
EXPECT_FALSE(S3.isEmpty());
EXPECT_FALSE(S == S3);
EXPECT_TRUE(S != S3);
EXPECT_FALSE(S.contains(2));
EXPECT_TRUE(S3.contains(2));
EXPECT_FALSE(S2 == S3);
EXPECT_TRUE(S2 != S3);
EXPECT_FALSE(S2.contains(2));
EXPECT_FALSE(S3.contains(3));
}
TEST_F(ImmutableSetTest, MultiElemIntSetTest) {
ImmutableSet<int>::Factory f;
ImmutableSet<int> S = f.getEmptySet();
ImmutableSet<int> S2 = f.add(f.add(f.add(S, 3), 4), 5);
ImmutableSet<int> S3 = f.add(f.add(f.add(S2, 9), 20), 43);
ImmutableSet<int> S4 = f.add(S2, 9);
EXPECT_TRUE(S.isEmpty());
EXPECT_FALSE(S2.isEmpty());
EXPECT_FALSE(S3.isEmpty());
EXPECT_FALSE(S4.isEmpty());
EXPECT_FALSE(S.contains(3));
EXPECT_FALSE(S.contains(9));
EXPECT_TRUE(S2.contains(3));
EXPECT_TRUE(S2.contains(4));
EXPECT_TRUE(S2.contains(5));
EXPECT_FALSE(S2.contains(9));
EXPECT_FALSE(S2.contains(0));
EXPECT_TRUE(S3.contains(43));
EXPECT_TRUE(S3.contains(20));
EXPECT_TRUE(S3.contains(9));
EXPECT_TRUE(S3.contains(3));
EXPECT_TRUE(S3.contains(4));
EXPECT_TRUE(S3.contains(5));
EXPECT_FALSE(S3.contains(0));
EXPECT_TRUE(S4.contains(9));
EXPECT_TRUE(S4.contains(3));
EXPECT_TRUE(S4.contains(4));
EXPECT_TRUE(S4.contains(5));
EXPECT_FALSE(S4.contains(20));
EXPECT_FALSE(S4.contains(43));
}
TEST_F(ImmutableSetTest, RemoveIntSetTest) {
ImmutableSet<int>::Factory f;
ImmutableSet<int> S = f.getEmptySet();
ImmutableSet<int> S2 = f.add(f.add(S, 4), 5);
ImmutableSet<int> S3 = f.add(S2, 3);
ImmutableSet<int> S4 = f.remove(S3, 3);
EXPECT_TRUE(S3.contains(3));
EXPECT_FALSE(S2.contains(3));
EXPECT_FALSE(S4.contains(3));
EXPECT_TRUE(S2 == S4);
EXPECT_TRUE(S3 != S2);
EXPECT_TRUE(S3 != S4);
EXPECT_TRUE(S3.contains(4));
EXPECT_TRUE(S3.contains(5));
EXPECT_TRUE(S4.contains(4));
EXPECT_TRUE(S4.contains(5));
}
TEST_F(ImmutableSetTest, CallbackCharSetTest) {
ImmutableSet<char>::Factory f;
ImmutableSet<char> S = f.getEmptySet();
ImmutableSet<char> S2 = f.add(f.add(f.add(S, 'a'), 'e'), 'i');
ImmutableSet<char> S3 = f.add(f.add(S2, 'o'), 'u');
S3.foreach<MyIter>();
ASSERT_STREQ("aeiou", buffer);
}
TEST_F(ImmutableSetTest, Callback2CharSetTest) {
ImmutableSet<char>::Factory f;
ImmutableSet<char> S = f.getEmptySet();
ImmutableSet<char> S2 = f.add(f.add(f.add(S, 'b'), 'c'), 'd');
ImmutableSet<char> S3 = f.add(f.add(f.add(S2, 'f'), 'g'), 'h');
MyIter obj;
S3.foreach<MyIter>(obj);
ASSERT_STREQ("bcdfgh", buffer);
ASSERT_EQ(6, obj.counter);
MyIter obj2;
S2.foreach<MyIter>(obj2);
ASSERT_STREQ("bcd", buffer);
ASSERT_EQ(3, obj2.counter);
MyIter obj3;
S.foreach<MyIter>(obj);
ASSERT_STREQ("", buffer);
ASSERT_EQ(0, obj3.counter);
}
TEST_F(ImmutableSetTest, IterLongSetTest) {
ImmutableSet<long>::Factory f;
ImmutableSet<long> S = f.getEmptySet();
ImmutableSet<long> S2 = f.add(f.add(f.add(S, 0), 1), 2);
ImmutableSet<long> S3 = f.add(f.add(f.add(S2, 3), 4), 5);
int i = 0;
for (ImmutableSet<long>::iterator I = S.begin(), E = S.end(); I != E; ++I) {
i++;
}
ASSERT_EQ(0, i);
i = 0;
for (ImmutableSet<long>::iterator I = S2.begin(), E = S2.end(); I != E; ++I) {
ASSERT_EQ(i, *I);
i++;
}
ASSERT_EQ(3, i);
i = 0;
for (ImmutableSet<long>::iterator I = S3.begin(), E = S3.end(); I != E; I++) {
ASSERT_EQ(i, *I);
i++;
}
ASSERT_EQ(6, i);
}
}