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//===-- flang/unittests/RuntimeGTest/ExternalIOTest.cpp ---------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// Sanity test for all external I/O modes
//
//===----------------------------------------------------------------------===//
#include "CrashHandlerFixture.h"
#include "gtest/gtest.h"
#include "flang/Runtime/descriptor.h"
#include "flang/Runtime/io-api.h"
#include "flang/Runtime/main.h"
#include "flang/Runtime/stop.h"
#include "llvm/Support/raw_ostream.h"
#include <cstring>
#include <string_view>
using namespace Fortran::runtime;
using namespace Fortran::runtime::io;
struct ExternalIOTests : public CrashHandlerFixture {};
TEST(ExternalIOTests, TestDirectUnformatted) {
// OPEN(NEWUNIT=unit,ACCESS='DIRECT',ACTION='READWRITE',&
// FORM='UNFORMATTED',RECL=8,STATUS='SCRATCH')
Cookie io{IONAME(BeginOpenNewUnit)(__FILE__, __LINE__)};
ASSERT_TRUE(IONAME(SetAccess)(io, "DIRECT", 6)) << "SetAccess(DIRECT)";
ASSERT_TRUE(IONAME(SetAction)(io, "READWRITE", 9)) << "SetAction(READWRITE)";
ASSERT_TRUE(IONAME(SetForm)(io, "UNFORMATTED", 11)) << "SetForm(UNFORMATTED)";
std::int64_t buffer;
static constexpr std::size_t recl{sizeof buffer};
ASSERT_TRUE(IONAME(SetRecl)(io, recl)) << "SetRecl()";
ASSERT_TRUE(IONAME(SetStatus)(io, "SCRATCH", 7)) << "SetStatus(SCRATCH)";
int unit{-1};
ASSERT_TRUE(IONAME(GetNewUnit)(io, unit)) << "GetNewUnit()";
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for OpenNewUnit";
// INQUIRE(IOLENGTH=) j
io = IONAME(BeginInquireIoLength)(__FILE__, __LINE__);
ASSERT_TRUE(IONAME(OutputUnformattedBlock)(
io, reinterpret_cast<const char *>(&buffer), recl, 1))
<< "OutputUnformattedBlock() for InquireIoLength";
ASSERT_EQ(IONAME(GetIoLength)(io), recl) << "GetIoLength";
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for InquireIoLength";
static constexpr int records{10};
for (int j{1}; j <= records; ++j) {
// WRITE(UNIT=unit,REC=j) j
io = IONAME(BeginUnformattedOutput)(unit, __FILE__, __LINE__);
ASSERT_TRUE(IONAME(SetRec)(io, j)) << "SetRec(" << j << ')';
buffer = j;
ASSERT_TRUE(IONAME(OutputUnformattedBlock)(
io, reinterpret_cast<const char *>(&buffer), 1, recl))
<< "OutputUnformattedBlock()";
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for OutputUnformattedBlock";
}
for (int j{records}; j >= 1; --j) {
// READ(UNIT=unit,REC=j) n
io = IONAME(BeginUnformattedInput)(unit, __FILE__, __LINE__);
ASSERT_TRUE(IONAME(SetRec)(io, j)) << "SetRec(" << j << ')';
ASSERT_TRUE(IONAME(InputUnformattedBlock)(
io, reinterpret_cast<char *>(&buffer), 1, recl))
<< "InputUnformattedBlock()";
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for InputUnformattedBlock";
ASSERT_EQ(buffer, j) << "Read back " << buffer
<< " from direct unformatted record " << j
<< ", expected " << j << '\n';
}
// CLOSE(UNIT=unit,STATUS='DELETE')
io = IONAME(BeginClose)(unit, __FILE__, __LINE__);
ASSERT_TRUE(IONAME(SetStatus)(io, "DELETE", 6)) << "SetStatus(DELETE)";
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for Close";
}
TEST(ExternalIOTests, TestDirectUnformattedSwapped) {
// OPEN(NEWUNIT=unit,ACCESS='DIRECT',ACTION='READWRITE',&
// FORM='UNFORMATTED',RECL=8,STATUS='SCRATCH',CONVERT='NATIVE')
auto *io{IONAME(BeginOpenNewUnit)(__FILE__, __LINE__)};
ASSERT_TRUE(IONAME(SetAccess)(io, "DIRECT", 6)) << "SetAccess(DIRECT)";
ASSERT_TRUE(IONAME(SetAction)(io, "READWRITE", 9)) << "SetAction(READWRITE)";
ASSERT_TRUE(IONAME(SetForm)(io, "UNFORMATTED", 11)) << "SetForm(UNFORMATTED)";
ASSERT_TRUE(IONAME(SetConvert)(io, "NATIVE", 6)) << "SetConvert(NATIVE)";
std::int64_t buffer;
static constexpr std::size_t recl{sizeof buffer};
ASSERT_TRUE(IONAME(SetRecl)(io, recl)) << "SetRecl()";
ASSERT_TRUE(IONAME(SetStatus)(io, "SCRATCH", 7)) << "SetStatus(SCRATCH)";
int unit{-1};
ASSERT_TRUE(IONAME(GetNewUnit)(io, unit)) << "GetNewUnit()";
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for OpenNewUnit";
static constexpr int records{10};
for (int j{1}; j <= records; ++j) {
// WRITE(UNIT=unit,REC=j) j
io = IONAME(BeginUnformattedOutput)(unit, __FILE__, __LINE__);
ASSERT_TRUE(IONAME(SetRec)(io, j)) << "SetRec(" << j << ')';
buffer = j;
ASSERT_TRUE(IONAME(OutputUnformattedBlock)(
io, reinterpret_cast<const char *>(&buffer), recl, recl))
<< "OutputUnformattedBlock()";
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for OutputUnformattedBlock";
}
// OPEN(UNIT=unit,STATUS='OLD',CONVERT='SWAP')
io = IONAME(BeginOpenUnit)(unit, __FILE__, __LINE__);
ASSERT_TRUE(IONAME(SetStatus)(io, "OLD", 3)) << "SetStatus(OLD)";
ASSERT_TRUE(IONAME(SetConvert)(io, "SWAP", 4)) << "SetConvert(SWAP)";
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for OpenUnit";
for (int j{records}; j >= 1; --j) {
// READ(UNIT=unit,REC=j) n
io = IONAME(BeginUnformattedInput)(unit, __FILE__, __LINE__);
ASSERT_TRUE(IONAME(SetRec)(io, j)) << "SetRec(" << j << ')';
ASSERT_TRUE(IONAME(InputUnformattedBlock)(
io, reinterpret_cast<char *>(&buffer), recl, recl))
<< "InputUnformattedBlock()";
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for InputUnformattedBlock";
ASSERT_EQ(buffer >> 56, j)
<< "Read back " << (buffer >> 56) << " from direct unformatted record "
<< j << ", expected " << j << '\n';
}
// CLOSE(UNIT=unit,STATUS='DELETE')
io = IONAME(BeginClose)(unit, __FILE__, __LINE__);
ASSERT_TRUE(IONAME(SetStatus)(io, "DELETE", 6)) << "SetStatus(DELETE)";
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for Close";
}
TEST(ExternalIOTests, TestSequentialFixedUnformatted) {
// OPEN(NEWUNIT=unit,ACCESS='SEQUENTIAL',ACTION='READWRITE',&
// FORM='UNFORMATTED',RECL=8,STATUS='SCRATCH')
auto *io{IONAME(BeginOpenNewUnit)(__FILE__, __LINE__)};
ASSERT_TRUE(IONAME(SetAccess)(io, "SEQUENTIAL", 10))
<< "SetAccess(SEQUENTIAL)";
ASSERT_TRUE(IONAME(SetAction)(io, "READWRITE", 9)) << "SetAction(READWRITE)";
ASSERT_TRUE(IONAME(SetForm)(io, "UNFORMATTED", 11)) << "SetForm(UNFORMATTED)";
std::int64_t buffer;
static constexpr std::size_t recl{sizeof buffer};
ASSERT_TRUE(IONAME(SetRecl)(io, recl)) << "SetRecl()";
ASSERT_TRUE(IONAME(SetStatus)(io, "SCRATCH", 7)) << "SetStatus(SCRATCH)";
int unit{-1};
ASSERT_TRUE(IONAME(GetNewUnit)(io, unit)) << "GetNewUnit()";
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for OpenNewUnit";
// INQUIRE(IOLENGTH=) j, ...
io = IONAME(BeginInquireIoLength)(__FILE__, __LINE__);
for (int j{1}; j <= 3; ++j) {
ASSERT_TRUE(IONAME(OutputUnformattedBlock)(
io, reinterpret_cast<const char *>(&buffer), recl, 1))
<< "OutputUnformattedBlock() for InquireIoLength";
}
ASSERT_EQ(IONAME(GetIoLength)(io), 3 * recl) << "GetIoLength";
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for InquireIoLength";
// INQUIRE(IOLENGTH=) j, ...
StaticDescriptor<0> staticDescriptor;
Descriptor &desc{staticDescriptor.descriptor()};
desc.Establish(TypeCode{CFI_type_int64_t}, recl, &buffer, 0);
desc.Dump(stderr);
desc.Check();
io = IONAME(BeginInquireIoLength)(__FILE__, __LINE__);
for (int j{1}; j <= 3; ++j) {
ASSERT_TRUE(IONAME(OutputDescriptor)(io, desc))
<< "OutputDescriptor() for InquireIoLength";
}
ASSERT_EQ(IONAME(GetIoLength)(io), 3 * recl) << "GetIoLength";
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for InquireIoLength";
static const int records{10};
for (int j{1}; j <= records; ++j) {
// DO J=1,RECORDS; WRITE(UNIT=unit) j; END DO
io = IONAME(BeginUnformattedOutput)(unit, __FILE__, __LINE__);
buffer = j;
ASSERT_TRUE(IONAME(OutputUnformattedBlock)(
io, reinterpret_cast<const char *>(&buffer), recl, recl))
<< "OutputUnformattedBlock()";
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for OutputUnformattedBlock";
}
// REWIND(UNIT=unit)
io = IONAME(BeginRewind)(unit, __FILE__, __LINE__);
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for Rewind";
for (int j{1}; j <= records; ++j) {
// DO J=1,RECORDS; READ(UNIT=unit) n; check n; END DO
io = IONAME(BeginUnformattedInput)(unit, __FILE__, __LINE__);
ASSERT_TRUE(IONAME(InputUnformattedBlock)(
io, reinterpret_cast<char *>(&buffer), recl, recl))
<< "InputUnformattedBlock()";
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for InputUnformattedBlock";
ASSERT_EQ(buffer, j) << "Read back " << buffer
<< " from sequential fixed unformatted record " << j
<< ", expected " << j << '\n';
}
for (int j{records}; j >= 1; --j) {
// BACKSPACE(UNIT=unit)
io = IONAME(BeginBackspace)(unit, __FILE__, __LINE__);
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for Backspace (before read)";
// READ(UNIT=unit) n
io = IONAME(BeginUnformattedInput)(unit, __FILE__, __LINE__);
ASSERT_TRUE(IONAME(InputUnformattedBlock)(
io, reinterpret_cast<char *>(&buffer), recl, recl))
<< "InputUnformattedBlock()";
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for InputUnformattedBlock";
ASSERT_EQ(buffer, j) << "Read back " << buffer
<< " from sequential fixed unformatted record " << j
<< " after backspacing, expected " << j << '\n';
// BACKSPACE(UNIT=unit)
io = IONAME(BeginBackspace)(unit, __FILE__, __LINE__);
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for Backspace (after read)";
}
// CLOSE(UNIT=unit,STATUS='DELETE')
io = IONAME(BeginClose)(unit, __FILE__, __LINE__);
ASSERT_TRUE(IONAME(SetStatus)(io, "DELETE", 6)) << "SetStatus(DELETE)";
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for Close";
}
TEST(ExternalIOTests, TestSequentialVariableUnformatted) {
// OPEN(NEWUNIT=unit,ACCESS='SEQUENTIAL',ACTION='READWRITE',&
// FORM='UNFORMATTED',STATUS='SCRATCH')
auto *io{IONAME(BeginOpenNewUnit)(__FILE__, __LINE__)};
ASSERT_TRUE(IONAME(SetAccess)(io, "SEQUENTIAL", 10))
<< "SetAccess(SEQUENTIAL)";
ASSERT_TRUE(IONAME(SetAction)(io, "READWRITE", 9)) << "SetAction(READWRITE)";
ASSERT_TRUE(IONAME(SetForm)(io, "UNFORMATTED", 11)) << "SetForm(UNFORMATTED)";
ASSERT_TRUE(IONAME(SetStatus)(io, "SCRATCH", 7)) << "SetStatus(SCRATCH)";
int unit{-1};
ASSERT_TRUE(IONAME(GetNewUnit)(io, unit)) << "GetNewUnit()";
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for OpenNewUnit";
static const int records{10};
std::int64_t buffer[records]; // INTEGER*8 :: BUFFER(0:9) = [(j,j=0,9)]
for (int j{0}; j < records; ++j) {
buffer[j] = j;
}
for (int j{1}; j <= records; ++j) {
// DO J=1,RECORDS; WRITE(UNIT=unit) BUFFER(0:j); END DO
io = IONAME(BeginUnformattedOutput)(unit, __FILE__, __LINE__);
ASSERT_TRUE(IONAME(OutputUnformattedBlock)(io,
reinterpret_cast<const char *>(&buffer), j * sizeof *buffer,
sizeof *buffer))
<< "OutputUnformattedBlock()";
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for OutputUnformattedBlock";
}
// REWIND(UNIT=unit)
io = IONAME(BeginRewind)(unit, __FILE__, __LINE__);
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for Rewind";
for (int j{1}; j <= records; ++j) {
// DO J=1,RECORDS; READ(UNIT=unit) n; check n; END DO
io = IONAME(BeginUnformattedInput)(unit, __FILE__, __LINE__);
ASSERT_TRUE(IONAME(InputUnformattedBlock)(io,
reinterpret_cast<char *>(&buffer), j * sizeof *buffer, sizeof *buffer))
<< "InputUnformattedBlock()";
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for InputUnformattedBlock";
for (int k{0}; k < j; ++k) {
ASSERT_EQ(buffer[k], k) << "Read back [" << k << "]=" << buffer[k]
<< " from direct unformatted record " << j
<< ", expected " << k << '\n';
}
}
for (int j{records}; j >= 1; --j) {
// BACKSPACE(unit)
io = IONAME(BeginBackspace)(unit, __FILE__, __LINE__);
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for Backspace (before read)";
// READ(unit=unit) n; check
io = IONAME(BeginUnformattedInput)(unit, __FILE__, __LINE__);
ASSERT_TRUE(IONAME(InputUnformattedBlock)(io,
reinterpret_cast<char *>(&buffer), j * sizeof *buffer, sizeof *buffer))
<< "InputUnformattedBlock()";
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for InputUnformattedBlock";
for (int k{0}; k < j; ++k) {
ASSERT_EQ(buffer[k], k) << "Read back [" << k << "]=" << buffer[k]
<< " from sequential variable unformatted record "
<< j << ", expected " << k << '\n';
}
// BACKSPACE(unit)
io = IONAME(BeginBackspace)(unit, __FILE__, __LINE__);
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for Backspace (after read)";
}
// CLOSE(UNIT=unit,STATUS='DELETE')
io = IONAME(BeginClose)(unit, __FILE__, __LINE__);
ASSERT_TRUE(IONAME(SetStatus)(io, "DELETE", 6)) << "SetStatus(DELETE)";
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for Close";
}
TEST(ExternalIOTests, TestDirectFormatted) {
// OPEN(NEWUNIT=unit,ACCESS='DIRECT',ACTION='READWRITE',&
// FORM='FORMATTED',RECL=8,STATUS='SCRATCH')
auto *io{IONAME(BeginOpenNewUnit)(__FILE__, __LINE__)};
ASSERT_TRUE(IONAME(SetAccess)(io, "DIRECT", 6)) << "SetAccess(DIRECT)";
ASSERT_TRUE(IONAME(SetAction)(io, "READWRITE", 9)) << "SetAction(READWRITE)";
ASSERT_TRUE(IONAME(SetForm)(io, "FORMATTED", 9)) << "SetForm(FORMATTED)";
static constexpr std::size_t recl{8};
ASSERT_TRUE(IONAME(SetRecl)(io, recl)) << "SetRecl()";
ASSERT_TRUE(IONAME(SetStatus)(io, "SCRATCH", 7)) << "SetStatus(SCRATCH)";
int unit{-1};
ASSERT_TRUE(IONAME(GetNewUnit)(io, unit)) << "GetNewUnit()";
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for OpenNewUnit";
static constexpr int records{10};
static const char fmt[]{"(I4)"};
for (int j{1}; j <= records; ++j) {
// WRITE(UNIT=unit,FMT=fmt,REC=j) j
io = IONAME(BeginExternalFormattedOutput)(
fmt, sizeof fmt - 1, unit, __FILE__, __LINE__);
ASSERT_TRUE(IONAME(SetRec)(io, j)) << "SetRec(" << j << ')';
ASSERT_TRUE(IONAME(OutputInteger64)(io, j)) << "OutputInteger64()";
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for OutputInteger64";
}
for (int j{records}; j >= 1; --j) {
// READ(UNIT=unit,FMT=fmt,REC=j) n
io = IONAME(BeginExternalFormattedInput)(
fmt, sizeof fmt - 1, unit, __FILE__, __LINE__);
ASSERT_TRUE(IONAME(SetRec)(io, j)) << "SetRec(" << j << ')';
std::int64_t buffer;
ASSERT_TRUE(IONAME(InputInteger)(io, buffer)) << "InputInteger()";
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for InputInteger";
ASSERT_EQ(buffer, j) << "Read back " << buffer
<< " from direct formatted record " << j
<< ", expected " << j << '\n';
}
// CLOSE(UNIT=unit,STATUS='DELETE')
io = IONAME(BeginClose)(unit, __FILE__, __LINE__);
ASSERT_TRUE(IONAME(SetStatus)(io, "DELETE", 6)) << "SetStatus(DELETE)";
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for Close";
}
TEST(ExternalIOTests, TestSequentialVariableFormatted) {
// OPEN(NEWUNIT=unit,ACCESS='SEQUENTIAL',ACTION='READWRITE',&
// FORM='FORMATTED',STATUS='SCRATCH')
auto *io{IONAME(BeginOpenNewUnit)(__FILE__, __LINE__)};
ASSERT_TRUE(IONAME(SetAccess)(io, "SEQUENTIAL", 10))
<< "SetAccess(SEQUENTIAL)";
ASSERT_TRUE(IONAME(SetAction)(io, "READWRITE", 9)) << "SetAction(READWRITE)";
ASSERT_TRUE(IONAME(SetForm)(io, "FORMATTED", 9)) << "SetForm(FORMATTED)";
ASSERT_TRUE(IONAME(SetStatus)(io, "SCRATCH", 7)) << "SetStatus(SCRATCH)";
int unit{-1};
ASSERT_TRUE(IONAME(GetNewUnit)(io, unit)) << "GetNewUnit()";
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for OpenNewUnit";
static const int records{10};
std::int64_t buffer[records]; // INTEGER*8 :: BUFFER(0:9) = [(j,j=0,9)]
for (int j{0}; j < records; ++j) {
buffer[j] = j;
}
char fmt[32];
for (int j{1}; j <= records; ++j) {
std::snprintf(fmt, sizeof fmt, "(%dI4)", j);
// DO J=1,RECORDS; WRITE(UNIT=unit,FMT=fmt) BUFFER(0:j); END DO
io = IONAME(BeginExternalFormattedOutput)(
fmt, std::strlen(fmt), unit, __FILE__, __LINE__);
for (int k{0}; k < j; ++k) {
ASSERT_TRUE(IONAME(OutputInteger64)(io, buffer[k]))
<< "OutputInteger64()";
}
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for OutputInteger64";
}
// REWIND(UNIT=unit)
io = IONAME(BeginRewind)(unit, __FILE__, __LINE__);
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for Rewind";
for (int j{1}; j <= records; ++j) {
std::snprintf(fmt, sizeof fmt, "(%dI4)", j);
// DO J=1,RECORDS; READ(UNIT=unit,FMT=fmt) n; check n; END DO
io = IONAME(BeginExternalFormattedInput)(
fmt, std::strlen(fmt), unit, __FILE__, __LINE__);
std::int64_t check[records];
for (int k{0}; k < j; ++k) {
ASSERT_TRUE(IONAME(InputInteger)(io, check[k])) << "InputInteger()";
}
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for InputInteger";
for (int k{0}; k < j; ++k) {
ASSERT_EQ(buffer[k], check[k])
<< "Read back [" << k << "]=" << check[k]
<< " from sequential variable formatted record " << j << ", expected "
<< buffer[k] << '\n';
}
}
for (int j{records}; j >= 1; --j) {
// BACKSPACE(unit)
io = IONAME(BeginBackspace)(unit, __FILE__, __LINE__);
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for Backspace (before read)";
std::snprintf(fmt, sizeof fmt, "(%dI4)", j);
// READ(UNIT=unit,FMT=fmt,SIZE=chars) n; check
io = IONAME(BeginExternalFormattedInput)(
fmt, std::strlen(fmt), unit, __FILE__, __LINE__);
std::int64_t check[records];
for (int k{0}; k < j; ++k) {
ASSERT_TRUE(IONAME(InputInteger)(io, check[k])) << "InputInteger()";
}
std::size_t chars{IONAME(GetSize)(io)};
ASSERT_EQ(chars, j * 4u)
<< "GetSize()=" << chars << ", expected " << (j * 4u) << '\n';
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for InputInteger";
for (int k{0}; k < j; ++k) {
ASSERT_EQ(buffer[k], check[k])
<< "Read back [" << k << "]=" << buffer[k]
<< " from sequential variable formatted record " << j << ", expected "
<< buffer[k] << '\n';
}
// BACKSPACE(unit)
io = IONAME(BeginBackspace)(unit, __FILE__, __LINE__);
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for Backspace (after read)";
}
// CLOSE(UNIT=unit,STATUS='DELETE')
io = IONAME(BeginClose)(unit, __FILE__, __LINE__);
ASSERT_TRUE(IONAME(SetStatus)(io, "DELETE", 6)) << "SetStatus(DELETE)";
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for Close";
}
TEST(ExternalIOTests, TestNonAvancingInput) {
// OPEN(NEWUNIT=unit,ACCESS='SEQUENTIAL',ACTION='READWRITE',&
// FORM='FORMATTED',STATUS='SCRATCH')
auto *io{IONAME(BeginOpenNewUnit)(__FILE__, __LINE__)};
ASSERT_TRUE(IONAME(SetAccess)(io, "SEQUENTIAL", 10))
<< "SetAccess(SEQUENTIAL)";
ASSERT_TRUE(IONAME(SetAction)(io, "READWRITE", 9)) << "SetAction(READWRITE)";
ASSERT_TRUE(IONAME(SetForm)(io, "FORMATTED", 9)) << "SetForm(FORMATTED)";
ASSERT_TRUE(IONAME(SetStatus)(io, "SCRATCH", 7)) << "SetStatus(SCRATCH)";
int unit{-1};
ASSERT_TRUE(IONAME(GetNewUnit)(io, unit)) << "GetNewUnit()";
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for OpenNewUnit";
// Write the file to be used for the input test.
static constexpr std::string_view records[] = {
"ABCDEFGH", "IJKLMNOP", "QRSTUVWX"};
static constexpr std::string_view fmt{"(A)"};
for (const auto &record : records) {
// WRITE(UNIT=unit,FMT=fmt) record
io = IONAME(BeginExternalFormattedOutput)(
fmt.data(), fmt.length(), unit, __FILE__, __LINE__);
ASSERT_TRUE(IONAME(OutputAscii)(io, record.data(), record.length()))
<< "OutputAscii()";
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for OutputAscii";
}
// REWIND(UNIT=unit)
io = IONAME(BeginRewind)(unit, __FILE__, __LINE__);
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for Rewind";
struct TestItems {
std::string item;
int expectedIoStat;
std::string expectedItemValue;
};
// Actual non advancing input IO test
TestItems inputItems[]{
{std::string(4, '+'), IostatOk, "ABCD"},
{std::string(4, '+'), IostatOk, "EFGH"},
{std::string(4, '+'), IostatEor, " "},
{std::string(2, '+'), IostatOk, "IJ"},
{std::string(8, '+'), IostatEor, "KLMNOP "},
{std::string(10, '+'), IostatEor, "QRSTUVWX "},
};
int j{0};
for (auto &inputItem : inputItems) {
// READ(UNIT=unit, FMT=fmt, ADVANCE='NO', IOSTAT=iostat) inputItem
io = IONAME(BeginExternalFormattedInput)(
fmt.data(), fmt.length(), unit, __FILE__, __LINE__);
IONAME(EnableHandlers)(io, true, false, false, false, false);
ASSERT_TRUE(IONAME(SetAdvance)(io, "NO", 2)) << "SetAdvance(NO)" << j;
ASSERT_TRUE(
IONAME(InputAscii)(io, inputItem.item.data(), inputItem.item.length()))
<< "InputAscii() " << j;
ASSERT_EQ(IONAME(EndIoStatement)(io), inputItem.expectedIoStat)
<< "EndIoStatement() for Read " << j;
ASSERT_EQ(inputItem.item, inputItem.expectedItemValue)
<< "Input-item value after non advancing read " << j;
j++;
}
}
TEST(ExternalIOTests, TestWriteAfterNonAvancingInput) {
// OPEN(NEWUNIT=unit,ACCESS='SEQUENTIAL',ACTION='READWRITE',&
// FORM='FORMATTED',STATUS='SCRATCH')
auto *io{IONAME(BeginOpenNewUnit)(__FILE__, __LINE__)};
ASSERT_TRUE(IONAME(SetAccess)(io, "SEQUENTIAL", 10))
<< "SetAccess(SEQUENTIAL)";
ASSERT_TRUE(IONAME(SetAction)(io, "READWRITE", 9)) << "SetAction(READWRITE)";
ASSERT_TRUE(IONAME(SetForm)(io, "FORMATTED", 9)) << "SetForm(FORMATTED)";
ASSERT_TRUE(IONAME(SetStatus)(io, "SCRATCH", 7)) << "SetStatus(SCRATCH)";
int unit{-1};
ASSERT_TRUE(IONAME(GetNewUnit)(io, unit)) << "GetNewUnit()";
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for OpenNewUnit";
// Write the file to be used for the input test.
static constexpr std::string_view records[] = {"ABCDEFGHIJKLMNOPQRST"};
static constexpr std::string_view fmt{"(A)"};
for (const auto &record : records) {
// WRITE(UNIT=unit,FMT=fmt) record
io = IONAME(BeginExternalFormattedOutput)(
fmt.data(), fmt.length(), unit, __FILE__, __LINE__);
ASSERT_TRUE(IONAME(OutputAscii)(io, record.data(), record.length()))
<< "OutputAscii()";
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for OutputAscii";
}
// REWIND(UNIT=unit)
io = IONAME(BeginRewind)(unit, __FILE__, __LINE__);
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for Rewind";
struct TestItems {
std::string item;
int expectedIoStat;
std::string expectedItemValue;
};
// Actual non advancing input IO test
TestItems inputItems[]{
{std::string(4, '+'), IostatOk, "ABCD"},
{std::string(4, '+'), IostatOk, "EFGH"},
};
int j{0};
for (auto &inputItem : inputItems) {
// READ(UNIT=unit, FMT=fmt, ADVANCE='NO', IOSTAT=iostat) inputItem
io = IONAME(BeginExternalFormattedInput)(
fmt.data(), fmt.length(), unit, __FILE__, __LINE__);
IONAME(EnableHandlers)(io, true, false, false, false, false);
ASSERT_TRUE(IONAME(SetAdvance)(io, "NO", 2)) << "SetAdvance(NO)" << j;
ASSERT_TRUE(
IONAME(InputAscii)(io, inputItem.item.data(), inputItem.item.length()))
<< "InputAscii() " << j;
ASSERT_EQ(IONAME(EndIoStatement)(io), inputItem.expectedIoStat)
<< "EndIoStatement() for Read " << j;
ASSERT_EQ(inputItem.item, inputItem.expectedItemValue)
<< "Input-item value after non advancing read " << j;
j++;
}
// WRITE(UNIT=unit, FMT=fmt, IOSTAT=iostat) outputItem.
static constexpr std::string_view outputItem{"XYZ"};
// WRITE(UNIT=unit,FMT=fmt) record
io = IONAME(BeginExternalFormattedOutput)(
fmt.data(), fmt.length(), unit, __FILE__, __LINE__);
ASSERT_TRUE(IONAME(OutputAscii)(io, outputItem.data(), outputItem.length()))
<< "OutputAscii()";
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for OutputAscii";
// Verify that the output was written in the record read in non avdancing
// mode, after the read part, and that the end was truncated.
// REWIND(UNIT=unit)
io = IONAME(BeginRewind)(unit, __FILE__, __LINE__);
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for Rewind";
std::string resultRecord(20, '+');
std::string expectedRecord{"ABCDEFGHXYZ "};
// READ(UNIT=unit, FMT=fmt, IOSTAT=iostat) result
io = IONAME(BeginExternalFormattedInput)(
fmt.data(), fmt.length(), unit, __FILE__, __LINE__);
IONAME(EnableHandlers)(io, true, false, false, false, false);
ASSERT_TRUE(
IONAME(InputAscii)(io, resultRecord.data(), resultRecord.length()))
<< "InputAscii() ";
ASSERT_EQ(IONAME(EndIoStatement)(io), IostatOk)
<< "EndIoStatement() for Read ";
ASSERT_EQ(resultRecord, expectedRecord)
<< "Record after non advancing read followed by wrote";
}