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395 lines
14 KiB
Plaintext
395 lines
14 KiB
Plaintext
{:cimport, :cppimport, :internalize, :eq, :neq, :ffi, :lib, :cstr, :to_cstr} = require 'test.unit.helpers'
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require 'lfs'
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require 'bit'
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fs = cimport './src/nvim/os/os.h'
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-- TODO(aktau): define these constants "better"
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FAIL = 0
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OK = 1
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cppimport 'sys/stat.h'
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describe 'fs function', ->
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setup ->
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lfs.mkdir 'unit-test-directory'
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(io.open 'unit-test-directory/test.file', 'w').close!
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(io.open 'unit-test-directory/test_2.file', 'w').close!
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lfs.link 'test.file', 'unit-test-directory/test_link.file', true
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-- Since the tests are executed, they are called by an executable. We use
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-- that executable for several asserts.
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export absolute_executable = arg[0]
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-- Split absolute_executable into a directory and the actual file name for
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-- later usage.
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export directory, executable_name = string.match(absolute_executable, '^(.*)/(.*)$')
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teardown ->
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os.remove 'unit-test-directory/test.file'
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os.remove 'unit-test-directory/test_2.file'
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os.remove 'unit-test-directory/test_link.file'
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lfs.rmdir 'unit-test-directory'
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describe 'os_dirname', ->
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os_dirname = (buf, len) ->
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fs.os_dirname buf, len
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before_each ->
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export len = (string.len lfs.currentdir!) + 1
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export buf = cstr len, ''
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it 'returns OK and writes current directory into the buffer if it is large
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enough', ->
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eq OK, (os_dirname buf, len)
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eq lfs.currentdir!, (ffi.string buf)
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-- What kind of other failing cases are possible?
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it 'returns FAIL if the buffer is too small', ->
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buf = cstr (len-1), ''
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eq FAIL, (os_dirname buf, (len-1))
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describe 'path_full_dir_name', ->
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path_full_dir_name = (directory, buffer, len) ->
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directory = to_cstr directory
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fs.path_full_dir_name directory, buffer, len
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before_each ->
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-- Create empty string buffer which will contain the resulting path.
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export len = (string.len lfs.currentdir!) + 22
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export buffer = cstr len, ''
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it 'returns the absolute directory name of a given relative one', ->
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result = path_full_dir_name '..', buffer, len
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eq OK, result
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old_dir = lfs.currentdir!
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lfs.chdir '..'
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expected = lfs.currentdir!
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lfs.chdir old_dir
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eq expected, (ffi.string buffer)
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it 'returns the current directory name if the given string is empty', ->
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eq OK, (path_full_dir_name '', buffer, len)
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eq lfs.currentdir!, (ffi.string buffer)
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it 'fails if the given directory does not exist', ->
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eq FAIL, path_full_dir_name('does_not_exist', buffer, len)
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it 'works with a normal relative dir', ->
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result = path_full_dir_name('unit-test-directory', buffer, len)
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eq lfs.currentdir! .. '/unit-test-directory', (ffi.string buffer)
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eq OK, result
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os_isdir = (name) ->
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fs.os_isdir (to_cstr name)
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describe 'os_isdir', ->
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it 'returns false if an empty string is given', ->
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eq false, (os_isdir '')
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it 'returns false if a nonexisting directory is given', ->
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eq false, (os_isdir 'non-existing-directory')
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it 'returns false if a nonexisting absolute directory is given', ->
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eq false, (os_isdir '/non-existing-directory')
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it 'returns false if an existing file is given', ->
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eq false, (os_isdir 'unit-test-directory/test.file')
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it 'returns true if the current directory is given', ->
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eq true, (os_isdir '.')
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it 'returns true if the parent directory is given', ->
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eq true, (os_isdir '..')
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it 'returns true if an arbitrary directory is given', ->
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eq true, (os_isdir 'unit-test-directory')
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it 'returns true if an absolute directory is given', ->
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eq true, (os_isdir directory)
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describe 'os_can_exe', ->
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os_can_exe = (name) ->
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fs.os_can_exe (to_cstr name)
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it 'returns false when given a directory', ->
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eq false, (os_can_exe './unit-test-directory')
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it 'returns false when given a regular file without executable bit set', ->
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eq false, (os_can_exe 'unit-test-directory/test.file')
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it 'returns false when the given file does not exists', ->
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eq false, (os_can_exe 'does-not-exist.file')
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it 'returns true when given an executable inside $PATH', ->
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eq true, (os_can_exe executable_name)
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it 'returns true when given an executable relative to the current dir', ->
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old_dir = lfs.currentdir!
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lfs.chdir directory
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relative_executable = './' .. executable_name
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eq true, (os_can_exe relative_executable)
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lfs.chdir old_dir
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describe 'file permissions', ->
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os_getperm = (filename) ->
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perm = fs.os_getperm (to_cstr filename)
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tonumber perm
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os_setperm = (filename, perm) ->
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fs.os_setperm (to_cstr filename), perm
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os_file_is_readonly = (filename) ->
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fs.os_file_is_readonly (to_cstr filename)
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os_file_is_writable = (filename) ->
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fs.os_file_is_writable (to_cstr filename)
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bit_set = (number, check_bit) ->
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if 0 == (bit.band number, check_bit) then false else true
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set_bit = (number, to_set) ->
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return bit.bor number, to_set
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unset_bit = (number, to_unset) ->
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return bit.band number, (bit.bnot to_unset)
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describe 'os_getperm', ->
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it 'returns -1 when the given file does not exist', ->
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eq -1, (os_getperm 'non-existing-file')
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it 'returns a perm > 0 when given an existing file', ->
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assert.is_true (os_getperm 'unit-test-directory') > 0
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it 'returns S_IRUSR when the file is readable', ->
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perm = os_getperm 'unit-test-directory'
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assert.is_true (bit_set perm, ffi.C.kS_IRUSR)
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describe 'os_setperm', ->
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it 'can set and unset the executable bit of a file', ->
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perm = os_getperm 'unit-test-directory/test.file'
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perm = unset_bit perm, ffi.C.kS_IXUSR
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eq OK, (os_setperm 'unit-test-directory/test.file', perm)
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perm = os_getperm 'unit-test-directory/test.file'
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assert.is_false (bit_set perm, ffi.C.kS_IXUSR)
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perm = set_bit perm, ffi.C.kS_IXUSR
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eq OK, os_setperm 'unit-test-directory/test.file', perm
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perm = os_getperm 'unit-test-directory/test.file'
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assert.is_true (bit_set perm, ffi.C.kS_IXUSR)
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it 'fails if given file does not exist', ->
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perm = ffi.C.kS_IXUSR
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eq FAIL, (os_setperm 'non-existing-file', perm)
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describe 'os_file_is_readonly', ->
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it 'returns true if the file is readonly', ->
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perm = os_getperm 'unit-test-directory/test.file'
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perm_orig = perm
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perm = unset_bit perm, ffi.C.kS_IWUSR
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perm = unset_bit perm, ffi.C.kS_IWGRP
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perm = unset_bit perm, ffi.C.kS_IWOTH
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eq OK, (os_setperm 'unit-test-directory/test.file', perm)
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eq true, os_file_is_readonly 'unit-test-directory/test.file'
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eq OK, (os_setperm 'unit-test-directory/test.file', perm_orig)
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it 'returns false if the file is writable', ->
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eq false, os_file_is_readonly 'unit-test-directory/test.file'
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describe 'os_file_is_writable', ->
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it 'returns 0 if the file is readonly', ->
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perm = os_getperm 'unit-test-directory/test.file'
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perm_orig = perm
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perm = unset_bit perm, ffi.C.kS_IWUSR
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perm = unset_bit perm, ffi.C.kS_IWGRP
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perm = unset_bit perm, ffi.C.kS_IWOTH
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eq OK, (os_setperm 'unit-test-directory/test.file', perm)
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eq 0, os_file_is_writable 'unit-test-directory/test.file'
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eq OK, (os_setperm 'unit-test-directory/test.file', perm_orig)
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it 'returns 1 if the file is writable', ->
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eq 1, os_file_is_writable 'unit-test-directory/test.file'
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it 'returns 2 when given a folder with rights to write into', ->
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eq 2, os_file_is_writable 'unit-test-directory'
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describe 'file operations', ->
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setup ->
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(io.open 'unit-test-directory/test_remove.file', 'w').close!
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teardown ->
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os.remove 'unit-test-directory/test_remove.file'
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os_file_exists = (filename) ->
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fs.os_file_exists (to_cstr filename)
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os_rename = (path, new_path) ->
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fs.os_rename (to_cstr path), (to_cstr new_path)
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os_remove = (path) ->
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fs.os_remove (to_cstr path)
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describe 'os_file_exists', ->
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it 'returns false when given a non-existing file', ->
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eq false, (os_file_exists 'non-existing-file')
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it 'returns true when given an existing file', ->
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eq true, (os_file_exists 'unit-test-directory/test.file')
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describe 'os_rename', ->
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test = 'unit-test-directory/test.file'
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not_exist = 'unit-test-directory/not_exist.file'
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it 'can rename file if destination file does not exist', ->
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eq OK, (os_rename test, not_exist)
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eq false, (os_file_exists test)
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eq true, (os_file_exists not_exist)
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eq OK, (os_rename not_exist, test) -- restore test file
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it 'fail if source file does not exist', ->
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eq FAIL, (os_rename not_exist, test)
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it 'can overwrite destination file if it exists', ->
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other = 'unit-test-directory/other.file'
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file = io.open other, 'w'
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file\write 'other'
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file\flush!
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file\close!
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eq OK, (os_rename other, test)
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eq false, (os_file_exists other)
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eq true, (os_file_exists test)
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file = io.open test, 'r'
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eq 'other', (file\read '*all')
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file\close!
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describe 'os_remove', ->
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it 'returns non-zero when given a non-existing file', ->
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neq 0, (os_remove 'non-existing-file')
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it 'removes the given file and returns 0', ->
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eq true, (os_file_exists 'unit-test-directory/test_remove.file')
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eq 0, (os_remove 'unit-test-directory/test_remove.file')
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eq false, (os_file_exists 'unit-test-directory/test_remove.file')
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describe 'folder operations', ->
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os_mkdir = (path, mode) ->
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fs.os_mkdir (to_cstr path), mode
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os_rmdir = (path) ->
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fs.os_rmdir (to_cstr path)
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describe 'os_mkdir', ->
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it 'returns non-zero when given a already existing directory', ->
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mode = ffi.C.kS_IRUSR + ffi.C.kS_IWUSR + ffi.C.kS_IXUSR
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neq 0, (os_mkdir 'unit-test-directory', mode)
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it 'creates a directory and returns 0', ->
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mode = ffi.C.kS_IRUSR + ffi.C.kS_IWUSR + ffi.C.kS_IXUSR
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eq false, (os_isdir 'unit-test-directory/new-dir')
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eq 0, (os_mkdir 'unit-test-directory/new-dir', mode)
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eq true, (os_isdir 'unit-test-directory/new-dir')
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lfs.rmdir 'unit-test-directory/new-dir'
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describe 'os_rmdir', ->
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it 'returns non_zero when given a non-existing directory', ->
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neq 0, (os_rmdir 'non-existing-directory')
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it 'removes the given directory and returns 0', ->
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lfs.mkdir 'unit-test-directory/new-dir'
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eq 0, (os_rmdir 'unit-test-directory/new-dir', mode)
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eq false, (os_isdir 'unit-test-directory/new-dir')
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describe 'FileInfo', ->
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file_info_new = () ->
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file_info = ffi.new 'FileInfo[1]'
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file_info[0].stat.st_ino = 0
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file_info[0].stat.st_dev = 0
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file_info
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is_file_info_filled = (file_info) ->
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file_info[0].stat.st_ino > 0 and file_info[0].stat.st_dev > 0
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describe 'os_get_file_info', ->
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it 'returns false if given an non-existing file', ->
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file_info = file_info_new!
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assert.is_false (fs.os_get_file_info '/non-existent', file_info)
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it 'returns true if given an existing file and fills file_info', ->
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file_info = file_info_new!
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path = 'unit-test-directory/test.file'
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assert.is_true (fs.os_get_file_info path, file_info)
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assert.is_true (is_file_info_filled file_info)
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it 'returns the file info of the linked file, not the link', ->
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file_info = file_info_new!
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path = 'unit-test-directory/test_link.file'
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assert.is_true (fs.os_get_file_info path, file_info)
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assert.is_true (is_file_info_filled file_info)
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mode = tonumber file_info[0].stat.st_mode
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eq ffi.C.kS_IFREG, (bit.band mode, ffi.C.kS_IFMT)
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describe 'os_get_file_info_link', ->
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it 'returns false if given an non-existing file', ->
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file_info = file_info_new!
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assert.is_false (fs.os_get_file_info_link '/non-existent', file_info)
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it 'returns true if given an existing file and fills file_info', ->
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file_info = file_info_new!
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path = 'unit-test-directory/test.file'
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assert.is_true (fs.os_get_file_info_link path, file_info)
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assert.is_true (is_file_info_filled file_info)
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it 'returns the file info of the link, not the linked file', ->
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file_info = file_info_new!
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path = 'unit-test-directory/test_link.file'
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assert.is_true (fs.os_get_file_info_link path, file_info)
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assert.is_true (is_file_info_filled file_info)
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mode = tonumber file_info[0].stat.st_mode
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eq ffi.C.kS_IFLNK, (bit.band mode, ffi.C.kS_IFMT)
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describe 'os_get_file_info_fd', ->
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it 'returns false if given an invalid file descriptor', ->
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file_info = file_info_new!
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assert.is_false (fs.os_get_file_info_fd -1, file_info)
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it 'returns true if given an file descriptor and fills file_info', ->
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file_info = file_info_new!
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path = 'unit-test-directory/test.file'
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fd = ffi.C.open path, 0
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assert.is_true (fs.os_get_file_info_fd fd, file_info)
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assert.is_true (is_file_info_filled file_info)
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ffi.C.close fd
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describe 'os_file_info_id_equal', ->
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it 'returns false if file infos represent different files', ->
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file_info_1 = file_info_new!
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file_info_2 = file_info_new!
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path_1 = 'unit-test-directory/test.file'
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path_2 = 'unit-test-directory/test_2.file'
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assert.is_true (fs.os_get_file_info path_1, file_info_1)
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assert.is_true (fs.os_get_file_info path_2, file_info_2)
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assert.is_false (fs.os_file_info_id_equal file_info_1, file_info_2)
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it 'returns true if file infos represent the same file', ->
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file_info_1 = file_info_new!
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file_info_2 = file_info_new!
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path = 'unit-test-directory/test.file'
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assert.is_true (fs.os_get_file_info path, file_info_1)
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assert.is_true (fs.os_get_file_info path, file_info_2)
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assert.is_true (fs.os_file_info_id_equal file_info_1, file_info_2)
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it 'returns true if file infos represent the same file (symlink)', ->
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file_info_1 = file_info_new!
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file_info_2 = file_info_new!
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path_1 = 'unit-test-directory/test.file'
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path_2 = 'unit-test-directory/test_link.file'
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assert.is_true (fs.os_get_file_info path_1, file_info_1)
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assert.is_true (fs.os_get_file_info path_2, file_info_2)
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assert.is_true (fs.os_file_info_id_equal file_info_1, file_info_2)
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