diff options
| -rw-r--r-- | test/unit/os/fs_spec.lua | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/test/unit/os/fs_spec.lua b/test/unit/os/fs_spec.lua index 54f5a99902..d7e98b43ce 100644 --- a/test/unit/os/fs_spec.lua +++ b/test/unit/os/fs_spec.lua @@ -410,6 +410,9 @@ describe('fs function', function() end return ret1, ret2, ret3 end + local function os_write(fd, data) + return fs.os_write(fd, data, data and #data or 0) + end describe('os_file_exists', function() it('returns false when given a non-existing file', function() @@ -666,6 +669,45 @@ describe('fs function', function() end) end) + describe('os_write', function() + -- Function may be absent + local file = 'test-unit-os-fs_spec-os_write.dat' + + local s = '' + for i = 0, 255 do + s = s .. (i == 0 and '\0' or ('%c'):format(i)) + end + local fcontents = s:rep(16) + + before_each(function() + local f = io.open(file, 'w') + f:write(fcontents) + f:close() + end) + + after_each(function() + os.remove(file) + end) + + it('can write zero bytes to a file', function() + local fd = os_open(file, ffi.C.kO_WRONLY, 0) + ok(fd >= 0) + eq(0, os_write(fd, '')) + eq(0, os_write(fd, nil)) + eq(fcontents, io.open(file, 'r'):read('*a')) + eq(0, os_close(fd)) + end) + + it('can write some data to a file', function() + local fd = os_open(file, ffi.C.kO_WRONLY, 0) + ok(fd >= 0) + eq(3, os_write(fd, 'abc')) + eq(4, os_write(fd, ' def')) + eq('abc def' .. fcontents:sub(8), io.open(file, 'r'):read('*a')) + eq(0, os_close(fd)) + end) + end) + describe('os_nodetype', function() before_each(function() os.remove('non-existing-file') |