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// Copyright 2023 The Dawn & Tint Authors
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "dawn/common/Compiler.h"
#include "dawn/common/Range.h"
#include "dawn/common/TypedInteger.h"
#include "gtest/gtest.h"
namespace dawn {
namespace {
// Test that iterating an empty range doesn't iterate at all.
TEST(RangeTests, Empty) {
for ([[maybe_unused]] auto i : Range(0)) {
// Silence a -Wunreachable-code-loop-increment
if ((0)) {
continue;
}
FAIL();
}
for ([[maybe_unused]] auto i : Range(0, 0)) {
// Silence a -Wunreachable-code-loop-increment
if ((0)) {
continue;
}
FAIL();
}
}
// Test iterating with just an end.
TEST(RangeTests, JustEnd) {
int count = 0;
for (auto i : Range(45)) {
ASSERT_EQ(count, i);
count++;
}
ASSERT_EQ(count, 45);
}
// Test iterating with a start and an end.
TEST(RangeTests, StartAndEnd) {
int count = 18;
for (auto i : Range(18, 45)) {
ASSERT_EQ(count, i);
count++;
}
ASSERT_EQ(count, 45);
}
// Test iterating with a start and an end.
TEST(RangeTests, StartAndEnd_ITyp) {
using Int = TypedInteger<struct IntT, int>;
Int count{18};
for (auto i : Range(Int{18}, Int{45})) {
ASSERT_EQ(count, i);
count++;
}
ASSERT_EQ(count, Int{45});
}
} // anonymous namespace
} // namespace dawn