forked from OSchip/llvm-project
71 lines
1.5 KiB
C++
71 lines
1.5 KiB
C++
//===- llvm/unittest/ADT/SmallSetTest.cpp ------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// SmallSet unit tests.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ADT/SmallSet.h"
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#include "gtest/gtest.h"
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using namespace llvm;
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TEST(SmallSetTest, Insert) {
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SmallSet<int, 4> s1;
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for (int i = 0; i < 4; i++)
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s1.insert(i);
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for (int i = 0; i < 4; i++)
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s1.insert(i);
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EXPECT_EQ(4u, s1.size());
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for (int i = 0; i < 4; i++)
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EXPECT_EQ(1u, s1.count(i));
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EXPECT_EQ(0u, s1.count(4));
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}
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TEST(SmallSetTest, Grow) {
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SmallSet<int, 4> s1;
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for (int i = 0; i < 8; i++)
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s1.insert(i);
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EXPECT_EQ(8u, s1.size());
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for (int i = 0; i < 8; i++)
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EXPECT_EQ(1u, s1.count(i));
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EXPECT_EQ(0u, s1.count(8));
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}
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TEST(SmallSetTest, Erase) {
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SmallSet<int, 4> s1;
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for (int i = 0; i < 8; i++)
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s1.insert(i);
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EXPECT_EQ(8u, s1.size());
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// Remove elements one by one and check if all other elements are still there.
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for (int i = 0; i < 8; i++) {
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EXPECT_EQ(1u, s1.count(i));
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EXPECT_TRUE(s1.erase(i));
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EXPECT_EQ(0u, s1.count(i));
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EXPECT_EQ(8u - i - 1, s1.size());
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for (int j = i + 1; j < 8; j++)
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EXPECT_EQ(1u, s1.count(j));
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}
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EXPECT_EQ(0u, s1.count(8));
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}
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