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