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test: cover os_file_is_readable()

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This commit is contained in:
Justin M. Keyes 2015-08-11 17:04:00 -04:00
parent 3ce1b4015f
commit ad6b356119
1 changed files with 50 additions and 10 deletions
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60
test/unit/os/fs_spec.lua
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@ -32,6 +32,14 @@ local directory = nil
local absolute_executable = nil
local executable_name = nil
local function set_bit(number, to_set)
return bit.bor(number, to_set)
end
local function unset_bit(number, to_unset)
return bit.band(number, (bit.bnot(to_unset)))
end
local function assert_file_exists(filepath)
neq(nil, lfs.attributes(filepath))
end
@ -40,11 +48,24 @@ local function assert_file_does_not_exist(filepath)
eq(nil, lfs.attributes(filepath))
end
local function os_setperm(filename, perm)
return fs.os_setperm((to_cstr(filename)), perm)
end
local function os_getperm(filename)
local perm = fs.os_getperm((to_cstr(filename)))
return tonumber(perm)
end
describe('fs function', function()
local orig_test_file_perm
setup(function()
lfs.mkdir('unit-test-directory');
io.open('unit-test-directory/test.file', 'w').close()
orig_test_file_perm = os_getperm('unit-test-directory/test.file')
io.open('unit-test-directory/test_2.file', 'w').close()
lfs.link('test.file', 'unit-test-directory/test_link.file', true)
-- Since the tests are executed, they are called by an executable. We use
@ -188,6 +209,10 @@ describe('fs function', function()
end)
describe('file permissions', function()
before_each(function()
os_setperm('unit-test-directory/test.file', orig_test_file_perm)
end)
local function os_getperm(filename)
local perm = fs.os_getperm((to_cstr(filename)))
return tonumber(perm)
@ -208,6 +233,10 @@ describe('fs function', function()
return fs.os_file_is_readonly((to_cstr(filename)))
end
local function os_file_is_readable(filename)
return fs.os_file_is_readable((to_cstr(filename)))
end
local function os_file_is_writable(filename)
return fs.os_file_is_writable((to_cstr(filename)))
end
@ -216,14 +245,6 @@ describe('fs function', function()
return 0 ~= (bit.band(number, check_bit))
end
local function set_bit(number, to_set)
return bit.bor(number, to_set)
end
local function unset_bit(number, to_unset)
return bit.band(number, (bit.bnot(to_unset)))
end
describe('os_getperm', function()
it('returns -1 when the given file does not exist', function()
eq(-1, (os_getperm('non-existing-file')))
@ -322,16 +343,35 @@ describe('fs function', function()
end)
end)
describe('os_file_is_readable', function()
it('returns false if the file is not readable', function()
local perm = os_getperm('unit-test-directory/test.file')
perm = unset_bit(perm, ffi.C.kS_IRUSR)
perm = unset_bit(perm, ffi.C.kS_IRGRP)
perm = unset_bit(perm, ffi.C.kS_IROTH)
eq(OK, (os_setperm('unit-test-directory/test.file', perm)))
eq(false, os_file_is_readable('unit-test-directory/test.file'))
end)
it('returns false if the file does not exist', function()
eq(false, os_file_is_readable(
'unit-test-directory/what_are_you_smoking.gif'))
end)
it('returns true if the file is readable', function()
eq(true, os_file_is_readable(
'unit-test-directory/test.file'))
end)
end)
describe('os_file_is_writable', function()
it('returns 0 if the file is readonly', function()
local perm = os_getperm('unit-test-directory/test.file')
local perm_orig = perm
perm = unset_bit(perm, ffi.C.kS_IWUSR)
perm = unset_bit(perm, ffi.C.kS_IWGRP)
perm = unset_bit(perm, ffi.C.kS_IWOTH)
eq(OK, (os_setperm('unit-test-directory/test.file', perm)))
eq(0, os_file_is_writable('unit-test-directory/test.file'))
eq(OK, (os_setperm('unit-test-directory/test.file', perm_orig)))
end)
it('returns 1 if the file is writable', function()