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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "gtest/gtest.h"
#include "mozilla/Algorithm.h"
#include "mozilla/Maybe.h"
#include "mozilla/ResultVariant.h"
#include <iterator>
#include <vector>
using namespace mozilla;
using std::begin;
using std::end;
namespace {
struct MoveOnly {
explicit MoveOnly(int32_t aValue) : mValue{Some(aValue)} {}
MoveOnly(MoveOnly&&) = default;
MoveOnly& operator=(MoveOnly&&) = default;
Maybe<int32_t> mValue;
};
struct TestError {};
constexpr static int32_t arr1[3] = {1, 2, 3};
} // namespace
TEST(MFBT_Algorithm_TransformAbortOnErr, NoError)
{
std::vector<int64_t> out;
auto res = TransformAbortOnErr(
begin(arr1), end(arr1), std::back_inserter(out),
[](const int32_t value) -> Result<int64_t, TestError> {
return value * 10;
});
ASSERT_TRUE(res.isOk());
const std::vector<int64_t> expected = {10, 20, 30};
ASSERT_EQ(expected, out);
}
TEST(MFBT_Algorithm_TransformAbortOnErr, NoError_Range)
{
std::vector<int64_t> out;
auto res = TransformAbortOnErr(
arr1, std::back_inserter(out),
[](const int32_t value) -> Result<int64_t, TestError> {
return value * 10;
});
ASSERT_TRUE(res.isOk());
const std::vector<int64_t> expected = {10, 20, 30};
ASSERT_EQ(expected, out);
}
TEST(MFBT_Algorithm_TransformAbortOnErr, ErrorOnFirst)
{
std::vector<int64_t> out;
auto res = TransformAbortOnErr(
begin(arr1), end(arr1), std::back_inserter(out),
[](const int32_t value) -> Result<int64_t, TestError> {
return Err(TestError{});
});
ASSERT_TRUE(res.isErr());
ASSERT_TRUE(out.empty());
}
TEST(MFBT_Algorithm_TransformAbortOnErr, ErrorOnOther)
{
std::vector<int64_t> out;
auto res = TransformAbortOnErr(
begin(arr1), end(arr1), std::back_inserter(out),
[](const int32_t value) -> Result<int64_t, TestError> {
if (value > 2) {
return Err(TestError{});
}
return value * 10;
});
ASSERT_TRUE(res.isErr());
// XXX Should we assert on this, or is the content of out an implementation
// detail?
const std::vector<int64_t> expected = {10, 20};
ASSERT_EQ(expected, out);
}
TEST(MFBT_Algorithm_TransformAbortOnErr, ErrorOnOther_Move)
{
MoveOnly in[3] = {MoveOnly{1}, MoveOnly{2}, MoveOnly{3}};
std::vector<int64_t> out;
auto res = TransformAbortOnErr(
std::make_move_iterator(begin(in)), std::make_move_iterator(end(in)),
std::back_inserter(out),
[](MoveOnly value) -> Result<int64_t, TestError> {
if (*value.mValue > 1) {
return Err(TestError{});
}
return *value.mValue * 10;
});
ASSERT_TRUE(res.isErr());
ASSERT_FALSE(in[0].mValue);
ASSERT_FALSE(in[1].mValue);
ASSERT_TRUE(in[2].mValue);
// XXX Should we assert on this, or is the content of out an implementation
// detail?
const std::vector<int64_t> expected = {10};
ASSERT_EQ(expected, out);
}
TEST(MFBT_Algorithm_TransformIfAbortOnErr, NoError)
{
std::vector<int64_t> out;
auto res = TransformIfAbortOnErr(
begin(arr1), end(arr1), std::back_inserter(out),
[](const int32_t value) { return value % 2 == 1; },
[](const int32_t value) -> Result<int64_t, TestError> {
return value * 10;
});
ASSERT_TRUE(res.isOk());
const std::vector<int64_t> expected = {10, 30};
ASSERT_EQ(expected, out);
}
TEST(MFBT_Algorithm_TransformIfAbortOnErr, NoError_Range)
{
std::vector<int64_t> out;
auto res = TransformIfAbortOnErr(
arr1, std::back_inserter(out),
[](const int32_t value) { return value % 2 == 1; },
[](const int32_t value) -> Result<int64_t, TestError> {
return value * 10;
});
ASSERT_TRUE(res.isOk());
const std::vector<int64_t> expected = {10, 30};
ASSERT_EQ(expected, out);
}
TEST(MFBT_Algorithm_TransformIfAbortOnErr, ErrorOnOther)
{
std::vector<int64_t> out;
auto res = TransformIfAbortOnErr(
begin(arr1), end(arr1), std::back_inserter(out),
[](const int32_t value) { return value % 2 == 1; },
[](const int32_t value) -> Result<int64_t, TestError> {
if (value > 2) {
return Err(TestError{});
}
return value * 10;
});
ASSERT_TRUE(res.isErr());
const std::vector<int64_t> expected = {10};
ASSERT_EQ(expected, out);
}
TEST(MFBT_Algorithm_TransformIfAbortOnErr, ErrorOnOther_Move)
{
MoveOnly in[3] = {MoveOnly{1}, MoveOnly{2}, MoveOnly{3}};
std::vector<int64_t> out;
auto res = TransformIfAbortOnErr(
std::make_move_iterator(begin(in)), std::make_move_iterator(end(in)),
std::back_inserter(out),
[](const MoveOnly& value) { return *value.mValue % 2 == 1; },
[](MoveOnly value) -> Result<int64_t, TestError> {
if (*value.mValue > 1) {
return Err(TestError{});
}
return *value.mValue * 10;
});
ASSERT_TRUE(res.isErr());
ASSERT_FALSE(in[0].mValue);
ASSERT_TRUE(in[1].mValue);
ASSERT_FALSE(in[2].mValue);
// XXX Should we assert on this, or is the content of out an implementation
// detail?
const std::vector<int64_t> expected = {10};
ASSERT_EQ(expected, out);
}
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