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module test_open
use stdlib_io, only: open
use testdrive, only: new_unittest, unittest_type, error_type, check
implicit none
private
public :: collect_open
contains
!> Collect all exported unit tests
subroutine collect_open(testsuite)
!> Collection of tests
type(unittest_type), allocatable, intent(out) :: testsuite(:)
testsuite = [ &
new_unittest("io_read_write_text", test_io_read_write_text), &
new_unittest("io_read_write_stream", test_io_read_write_stream), &
new_unittest("io_open_error_flag", test_io_open_error_flag) &
]
end subroutine collect_open
function get_outpath() result(outpath)
integer :: ierr
character(256) :: argv
character(:), allocatable :: outpath
call get_command_argument(1, argv, status=ierr)
if (ierr == 0) then
outpath = trim(argv)
else
outpath = '.'
end if
end function get_outpath
subroutine test_io_read_write_text(error)
!> Error handling
type(error_type), allocatable, intent(out) :: error
character(:), allocatable :: filename
integer :: u, a(3)
! Text file
filename = get_outpath() // "/io_open.dat"
! Test mode "w"
u = open(filename, "w")
write(u, *) 1, 2, 3
close(u)
! Test mode "r"
u = open(filename, "r")
read(u, *) a
call check(error, all(a == [1, 2, 3]))
close(u)
if (allocated(error)) return
! Test mode "a"
u = open(filename, "a")
write(u, *) 4, 5, 6
close(u)
u = open(filename, "r")
read(u, *) a
call check(error, all(a == [1, 2, 3]))
read(u, *) a
call check(error, all(a == [4, 5, 6]))
close(u)
if (allocated(error)) return
end subroutine test_io_read_write_text
subroutine test_io_read_write_stream(error)
!> Error handling
type(error_type), allocatable, intent(out) :: error
character(:), allocatable :: filename
integer :: u, a(3)
! Stream file
filename = get_outpath() // "/io_open.stream"
! Test mode "w"
u = open(filename, "wb")
write(u) 1, 2, 3
close(u)
! Test mode "r"
u = open(filename, "rb")
read(u) a
call check(error, all(a == [1, 2, 3]))
close(u)
if (allocated(error)) return
! Test mode "a"
u = open(filename, "ab")
write(u) 4, 5, 6
close(u)
u = open(filename, "rb")
read(u) a
call check(error, all(a == [1, 2, 3]))
read(u) a
if (allocated(error)) return
call check(error, all(a == [4, 5, 6]))
close(u)
if (allocated(error)) return
end subroutine test_io_read_write_stream
subroutine test_io_open_error_flag(error)
!> Error handling
type(error_type), allocatable, intent(out) :: error
character(:), allocatable :: filename
integer :: ierr, u
filename = get_outpath() // "/io_open.stream"
! Write to file first to ensure that it exists
u = open(filename, "wb")
write(u) 1, 2, 3
close(u)
u = open(filename, "rb", ierr)
call check(error, ierr == 0)
if (ierr == 0) close(u)
if (allocated(error)) return
u = open(filename, "ab", ierr)
call check(error, ierr == 0)
if (ierr == 0) close(u)
if (allocated(error)) return
filename = get_outpath() // "/does_not_exist.error"
u = open(filename, "a", ierr)
call check(error, ierr /= 0)
if (allocated(error)) return
u = open(filename, "r", ierr)
call check(error, ierr /= 0)
if (allocated(error)) return
end subroutine test_io_open_error_flag
end module test_open
program tester
use, intrinsic :: iso_fortran_env, only : error_unit
use testdrive, only : run_testsuite, new_testsuite, testsuite_type
use test_open, only : collect_open
implicit none
integer :: stat, is
type(testsuite_type), allocatable :: testsuites(:)
character(len=*), parameter :: fmt = '("#", *(1x, a))'
stat = 0
testsuites = [ &
new_testsuite("open", collect_open) &
]
do is = 1, size(testsuites)
write(error_unit, fmt) "Testing:", testsuites(is)%name
call run_testsuite(testsuites(is)%collect, error_unit, stat)
end do
if (stat > 0) then
write(error_unit, '(i0, 1x, a)') stat, "test(s) failed!"
error stop
end if
end program tester
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