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50 lines
1.3 KiB
C++
50 lines
1.3 KiB
C++
//===--- RangeTest.cpp ----------------------------------------------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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#include "swift/Basic/Range.h"
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#include "swift/Basic/OptionSet.h"
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#include "gtest/gtest.h"
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using namespace swift;
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TEST(Range, basic) {
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unsigned start = 0;
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unsigned end = 50;
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unsigned expected_i = start;
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bool sawEndMinusOne = false;
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for (unsigned i : range(start, end)) {
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EXPECT_GE(i, start);
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EXPECT_LT(i, end);
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EXPECT_EQ(expected_i, i);
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++expected_i;
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sawEndMinusOne |= (i == (end - 1));
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}
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EXPECT_TRUE(sawEndMinusOne);
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}
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TEST(ReverseRange, basic) {
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unsigned start = 0;
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unsigned end = 50;
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unsigned expected_i = end;
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bool sawStartPlusOne = false;
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for (unsigned i : reverse_range(start, end)) {
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EXPECT_GT(i, start);
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EXPECT_LE(i, end);
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EXPECT_EQ(expected_i, i);
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--expected_i;
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sawStartPlusOne |= (i == start + 1);
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}
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EXPECT_TRUE(sawStartPlusOne);
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}
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