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8e704b16f1
checking whether the ArrayRef is equal to an explicit list of arguments. This is particularly easy to implement even without variadic templates because ArrayRef happens to be homogeneously typed. As a consequence we can use a "clever" wrapper type and default arguments to capture in a single method many arguments as well as *how many* arguments the user specified. Thanks to Dave Blaikie for helping me pull together this little helper. Suggestions for how to improve or generalize it are of course welcome. I'll be using it immediately in my follow-up patch. =D git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214041 91177308-0d34-0410-b5e6-96231b3b80d8
63 lines
2.2 KiB
C++
63 lines
2.2 KiB
C++
//===- llvm/unittest/ADT/ArrayRefTest.cpp - ArrayRef unit tests -----------===//
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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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#include "llvm/ADT/ArrayRef.h"
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#include "llvm/Support/Allocator.h"
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#include "llvm/Support/raw_ostream.h"
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#include "gtest/gtest.h"
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using namespace llvm;
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namespace llvm {
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TEST(ArrayRefTest, AllocatorCopy) {
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BumpPtrAllocator Alloc;
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static const uint16_t Words1[] = { 1, 4, 200, 37 };
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ArrayRef<uint16_t> Array1 = makeArrayRef(Words1, 4);
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static const uint16_t Words2[] = { 11, 4003, 67, 64000, 13 };
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ArrayRef<uint16_t> Array2 = makeArrayRef(Words2, 5);
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ArrayRef<uint16_t> Array1c = Array1.copy(Alloc);
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ArrayRef<uint16_t> Array2c = Array2.copy(Alloc);;
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EXPECT_TRUE(Array1.equals(Array1c));
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EXPECT_NE(Array1.data(), Array1c.data());
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EXPECT_TRUE(Array2.equals(Array2c));
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EXPECT_NE(Array2.data(), Array2c.data());
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}
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TEST(ArrayRefTest, DropBack) {
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static const int TheNumbers[] = {4, 8, 15, 16, 23, 42};
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ArrayRef<int> AR1(TheNumbers);
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ArrayRef<int> AR2(TheNumbers, AR1.size() - 1);
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EXPECT_TRUE(AR1.drop_back().equals(AR2));
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}
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TEST(ArrayRefTest, Equals) {
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static const int A1[] = {1, 2, 3, 4, 5, 6, 7, 8};
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ArrayRef<int> AR1(A1);
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EXPECT_TRUE(AR1.equals(1, 2, 3, 4, 5, 6, 7, 8));
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EXPECT_FALSE(AR1.equals(8, 1, 2, 4, 5, 6, 6, 7));
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EXPECT_FALSE(AR1.equals(2, 4, 5, 6, 6, 7, 8, 1));
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EXPECT_FALSE(AR1.equals(0, 1, 2, 4, 5, 6, 6, 7));
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EXPECT_FALSE(AR1.equals(1, 2, 42, 4, 5, 6, 7, 8));
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EXPECT_FALSE(AR1.equals(42, 2, 3, 4, 5, 6, 7, 8));
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EXPECT_FALSE(AR1.equals(1, 2, 3, 4, 5, 6, 7, 42));
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EXPECT_FALSE(AR1.equals(1, 2, 3, 4, 5, 6, 7));
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EXPECT_FALSE(AR1.equals(1, 2, 3, 4, 5, 6, 7, 8, 9));
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ArrayRef<int> AR1a = AR1.drop_back();
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EXPECT_TRUE(AR1a.equals(1, 2, 3, 4, 5, 6, 7));
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EXPECT_FALSE(AR1a.equals(1, 2, 3, 4, 5, 6, 7, 8));
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ArrayRef<int> AR1b = AR1a.slice(2, 4);
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EXPECT_TRUE(AR1b.equals(3, 4, 5, 6));
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EXPECT_FALSE(AR1b.equals(2, 3, 4, 5, 6));
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EXPECT_FALSE(AR1b.equals(3, 4, 5, 6, 7));
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}
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} // end anonymous namespace
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