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1 //===- SequenceTest.cpp - Unit tests for a sequence abstraciton -----------===//
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2 //
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3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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4 // See https://llvm.org/LICENSE.txt for license information.
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5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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120
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6 //
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7 //===----------------------------------------------------------------------===//
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8
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9 #include "llvm/ADT/Sequence.h"
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10 #include "gtest/gtest.h"
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11
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12 #include <list>
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13
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14 using namespace llvm;
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15
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16 namespace {
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17
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18 TEST(SequenceTest, Basic) {
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19 int x = 0;
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20 for (int i : seq(0, 10)) {
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21 EXPECT_EQ(x, i);
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22 x++;
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23 }
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24 EXPECT_EQ(10, x);
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25
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26 auto my_seq = seq(0, 4);
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27 EXPECT_EQ(4, my_seq.end() - my_seq.begin());
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28 for (int i : {0, 1, 2, 3})
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29 EXPECT_EQ(i, (int)my_seq.begin()[i]);
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30
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31 EXPECT_TRUE(my_seq.begin() < my_seq.end());
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32
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33 auto adjusted_begin = my_seq.begin() + 2;
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34 auto adjusted_end = my_seq.end() - 2;
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35 EXPECT_TRUE(adjusted_begin == adjusted_end);
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36 EXPECT_EQ(2, *adjusted_begin);
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37 EXPECT_EQ(2, *adjusted_end);
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38 }
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39
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40 } // anonymous namespace
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