fakefs/test/fakefs_test.rb

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require "test_helper"
class FakeFSTest < Test::Unit::TestCase
include FakeFS
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def test_split
assert File.respond_to? :split
filename = "/this/is/what/we/expect.txt"
path,filename = File.split(filename)
assert_equal path, "/this/is/what/we"
assert_equal filename, "expect.txt"
end
def setup
FakeFS.activate!
FileSystem.clear
end
def teardown
FakeFS.deactivate!
end
def test_can_be_initialized_empty
fs = FileSystem
assert_equal 0, fs.files.size
end
def xtest_can_be_initialized_with_an_existing_directory
fs = FileSystem
fs.clone(File.expand_path(File.dirname(__FILE__))).inspect
assert_equal 1, fs.files.size
end
def test_can_create_directories_with_file_utils_mkdir_p
FileUtils.mkdir_p("/path/to/dir")
assert_kind_of FakeDir, FileSystem.fs['path']['to']['dir']
end
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def test_can_create_directories_with_options
FileUtils.mkdir_p("/path/to/dir", :mode => 0755)
assert_kind_of FakeDir, FileSystem.fs['path']['to']['dir']
end
def test_can_create_directories_with_file_utils_mkdir
FileUtils.mkdir_p("/path/to/dir")
FileUtils.mkdir("/path/to/dir/subdir")
assert_kind_of FakeDir, FileSystem.fs['path']['to']['dir']['subdir']
end
def test_raises_error_when_creating_a_new_dir_with_mkdir_in_non_existent_path
assert_raises Errno::ENOENT do
FileUtils.mkdir("/this/path/does/not/exists/newdir")
end
end
def test_can_create_directories_with_mkpath
FileUtils.mkpath("/path/to/dir")
assert_kind_of FakeDir, FileSystem.fs['path']['to']['dir']
end
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def test_can_create_directories_with_mkpath_and_options
FileUtils.mkpath("/path/to/dir", :mode => 0755)
assert_kind_of FakeDir, FileSystem.fs['path']['to']['dir']
end
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def test_can_delete_directories
FileUtils.mkdir_p("/path/to/dir")
FileUtils.rmdir("/path/to/dir")
assert File.exists?("/path/to/")
assert File.exists?("/path/to/dir") == false
end
def test_can_delete_multiple_files
FileUtils.touch(["foo", "bar"])
FileUtils.rm(["foo", "bar"])
assert File.exists?("foo") == false
assert File.exists?("bar") == false
end
def test_knows_directories_exist
FileUtils.mkdir_p(path = "/path/to/dir")
assert File.exists?(path)
end
def test_knows_directories_are_directories
FileUtils.mkdir_p(path = "/path/to/dir")
assert File.directory?(path)
end
def test_knows_symlink_directories_are_directories
FileUtils.mkdir_p(path = "/path/to/dir")
FileUtils.ln_s path, sympath = '/sympath'
assert File.directory?(sympath)
end
def test_knows_non_existent_directories_arent_directories
path = 'does/not/exist/'
assert_equal RealFile.directory?(path), File.directory?(path)
end
def test_doesnt_overwrite_existing_directories
FileUtils.mkdir_p(path = "/path/to/dir")
assert File.exists?(path)
FileUtils.mkdir_p("/path/to")
assert File.exists?(path)
assert_raises Errno::EEXIST do
FileUtils.mkdir("/path/to")
end
assert File.exists?(path)
end
def test_can_create_symlinks
FileUtils.mkdir_p(target = "/path/to/target")
FileUtils.ln_s(target, "/path/to/link")
assert_kind_of FakeSymlink, FileSystem.fs['path']['to']['link']
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assert_raises(Errno::EEXIST) do
FileUtils.ln_s(target, '/path/to/link')
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end
end
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def test_can_force_creation_of_symlinks
FileUtils.mkdir_p(target = "/path/to/first/target")
FileUtils.ln_s(target, "/path/to/link")
assert_kind_of FakeSymlink, FileSystem.fs['path']['to']['link']
FileUtils.ln_s(target, '/path/to/link', :force => true)
end
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def test_create_symlink_using_ln_sf
FileUtils.mkdir_p(target = "/path/to/first/target")
FileUtils.ln_s(target, "/path/to/link")
assert_kind_of FakeSymlink, FileSystem.fs['path']['to']['link']
FileUtils.ln_sf(target, '/path/to/link')
end
def test_can_follow_symlinks
FileUtils.mkdir_p(target = "/path/to/target")
FileUtils.ln_s(target, link = "/path/to/symlink")
assert_equal target, File.readlink(link)
end
def test_knows_symlinks_are_symlinks
FileUtils.mkdir_p(target = "/path/to/target")
FileUtils.ln_s(target, link = "/path/to/symlink")
assert File.symlink?(link)
end
def test_can_create_files
path = '/path/to/file.txt'
File.open(path, 'w') do |f|
f.write "Yatta!"
end
assert File.exists?(path)
assert File.readable?(path)
assert File.writable?(path)
end
def test_can_create_files_with_bitmasks
path = '/path/to/file.txt'
File.open(path, File::RDWR | File::CREAT) do |f|
f.write "Yatta!"
end
assert File.exists?(path)
assert File.readable?(path)
assert File.writable?(path)
end
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def test_file_opens_in_read_only_mode
File.open("foo", "w") { |f| f << "foo" }
f = File.open("foo")
assert_raises(IOError) do
f << "bar"
end
end
def test_file_opens_in_read_only_mode_with_bitmasks
File.open("foo", "w") { |f| f << "foo" }
f = File.open("foo", File::RDONLY)
assert_raises(IOError) do
f << "bar"
end
end
def test_file_opens_in_invalid_mode
FileUtils.touch("foo")
assert_raises(ArgumentError) do
File.open("foo", "an_illegal_mode")
end
end
def test_raises_error_when_cannot_find_file_in_read_mode
assert_raises(Errno::ENOENT) do
File.open("does_not_exist", "r")
end
end
def test_raises_error_when_cannot_find_file_in_read_write_mode
assert_raises(Errno::ENOENT) do
File.open("does_not_exist", "r+")
end
end
def test_creates_files_in_write_only_mode
File.open("foo", "w")
assert File.exists?("foo")
end
def test_creates_files_in_write_only_mode_with_bitmasks
File.open("foo", File::WRONLY | File::CREAT)
assert File.exists?("foo")
end
def test_raises_in_write_only_mode_without_create_bitmask
assert_raises(Errno::ENOENT) do
File.open("foo", File::WRONLY)
end
end
def test_creates_files_in_read_write_truncate_mode
File.open("foo", "w+")
assert File.exists?("foo")
end
def test_creates_files_in_append_write_only
File.open("foo", "a")
assert File.exists?("foo")
end
def test_creates_files_in_append_read_write
File.open("foo", "a+")
assert File.exists?("foo")
end
def test_file_in_write_only_raises_error_when_reading
FileUtils.touch("foo")
f = File.open("foo", "w")
assert_raises(IOError) do
f.read
end
end
def test_file_in_write_mode_truncates_existing_file
File.open("foo", "w") { |f| f << "contents" }
f = File.open("foo", "w")
assert_equal "", File.read("foo")
end
def test_file_in_read_write_truncation_mode_truncates_file
File.open("foo", "w") { |f| f << "foo" }
f = File.open("foo", "w+")
assert_equal "", File.read("foo")
end
def test_file_in_append_write_only_raises_error_when_reading
FileUtils.touch("foo")
f = File.open("foo", "a")
assert_raises(IOError) do
f.read
end
end
def test_can_read_files_once_written
path = '/path/to/file.txt'
File.open(path, 'w') do |f|
f.write "Yatta!"
end
assert_equal "Yatta!", File.read(path)
end
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def test_can_write_to_files
path = '/path/to/file.txt'
File.open(path, 'w') do |f|
f << 'Yada Yada'
end
assert_equal 'Yada Yada', File.read(path)
end
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def test_raises_error_when_opening_with_binary_mode_only
assert_raise ArgumentError do
File.open("/foo", "b")
end
end
def test_can_open_file_in_binary_mode
File.open("/foo", "wb") { |x| x << "a" }
assert_equal "a", File.read("/foo")
end
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def test_can_chunk_io_when_reading
path = '/path/to/file.txt'
File.open(path, 'w') do |f|
f << 'Yada Yada'
end
file = File.new(path, 'r')
assert_equal 'Yada', file.read(4)
assert_equal ' Yada', file.read(5)
assert_equal '', file.read
file.rewind
assert_equal 'Yada Yada', file.read
end
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def test_can_get_size_of_files
path = '/path/to/file.txt'
File.open(path, 'w') do |f|
f << 'Yada Yada'
end
assert_equal 9, File.size(path)
end
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def test_can_check_if_file_has_size?
path = '/path/to/file.txt'
File.open(path, 'w') do |f|
f << 'Yada Yada'
end
assert File.size?(path)
assert_nil File.size?("/path/to/other.txt")
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end
def test_can_check_size_of_empty_file
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path = '/path/to/file.txt'
File.open(path, 'w') do |f|
f << ''
end
assert_nil File.size?("/path/to/file.txt")
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end
def test_raises_error_on_mtime_if_file_does_not_exist
assert_raise Errno::ENOENT do
File.mtime('/path/to/file.txt')
end
end
def test_can_return_mtime_on_existing_file
path = '/path/to/file.txt'
File.open(path, 'w') do |f|
f << ''
end
assert File.mtime('/path/to/file.txt').is_a?(Time)
end
def test_raises_error_on_ctime_if_file_does_not_exist
assert_raise Errno::ENOENT do
File.ctime('/path/to/file.txt')
end
end
def test_can_return_ctime_on_existing_file
File.open("foo", "w") { |f| f << "some content" }
assert File.ctime('foo').is_a?(Time)
end
def test_ctime_and_mtime_are_equal_for_new_files
File.open("foo", "w") { |f| f << "some content" }
ctime = File.ctime("foo")
mtime = File.mtime("foo")
assert ctime.is_a?(Time)
assert mtime.is_a?(Time)
assert_equal ctime, mtime
File.open("foo", "r") do |f|
assert_equal ctime, f.ctime
assert_equal mtime, f.mtime
end
end
def test_ctime_and_mtime_are_equal_for_new_directories
FileUtils.mkdir_p("foo")
ctime = File.ctime("foo")
mtime = File.mtime("foo")
assert ctime.is_a?(Time)
assert mtime.is_a?(Time)
assert_equal ctime, mtime
end
def test_file_ctime_is_equal_to_file_stat_ctime
File.open("foo", "w") { |f| f << "some content" }
assert_equal File.stat("foo").ctime, File.ctime("foo")
end
def test_directory_ctime_is_equal_to_directory_stat_ctime
FileUtils.mkdir_p("foo")
assert_equal File.stat("foo").ctime, File.ctime("foo")
end
def test_file_mtime_is_equal_to_file_stat_mtime
File.open("foo", "w") { |f| f << "some content" }
assert_equal File.stat("foo").mtime, File.mtime("foo")
end
def test_directory_mtime_is_equal_to_directory_stat_mtime
FileUtils.mkdir_p("foo")
assert_equal File.stat("foo").mtime, File.mtime("foo")
end
def test_utime_raises_error_if_path_does_not_exist
assert_raise Errno::ENOENT do
File.utime(Time.now, Time.now, '/path/to/file.txt')
end
end
def test_can_call_utime_on_an_existing_file
time = Time.now - 300 # Not now
path = '/path/to/file.txt'
File.open(path, 'w') do |f|
f << ''
end
File.utime(time, time, path)
assert_equal time, File.mtime('/path/to/file.txt')
end
def test_utime_returns_number_of_paths
path1, path2 = '/path/to/file.txt', '/path/to/another_file.txt'
[path1, path2].each do |path|
File.open(path, 'w') do |f|
f << ''
end
end
assert_equal 2, File.utime(Time.now, Time.now, path1, path2)
end
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def test_can_read_with_File_readlines
path = '/path/to/file.txt'
File.open(path, 'w') do |f|
f.puts "Yatta!", "Gatta!"
f.puts ["woot","toot"]
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end
assert_equal %w(Yatta! Gatta! woot toot), File.readlines(path)
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end
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def test_File_close_disallows_further_access
path = '/path/to/file.txt'
file = File.open(path, 'w')
file.write 'Yada'
file.close
assert_raise IOError do
file.read
end
end
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def test_File_close_disallows_further_writes
path = '/path/to/file.txt'
file = File.open(path, 'w')
file.write 'Yada'
file.close
assert_raise IOError do
file << "foo"
end
end
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def test_can_read_from_file_objects
path = '/path/to/file.txt'
File.open(path, 'w') do |f|
f.write "Yatta!"
end
assert_equal "Yatta!", File.new(path).read
end
def test_file_read_errors_appropriately
assert_raise Errno::ENOENT do
File.read('anything')
end
end
def test_knows_files_are_files
path = '/path/to/file.txt'
File.open(path, 'w') do |f|
f.write "Yatta!"
end
assert File.file?(path)
end
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def test_File_io_returns_self
f = File.open("/foo", "w")
assert_equal f, f.to_io
end
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def test_File_to_i_is_alias_for_filno
f = File.open("/foo", "w")
assert_equal f.method(:to_i), f.method(:fileno)
end
def test_knows_symlink_files_are_files
path = '/path/to/file.txt'
File.open(path, 'w') do |f|
f.write "Yatta!"
end
FileUtils.ln_s path, sympath='/sympath'
assert File.file?(sympath)
end
def test_knows_non_existent_files_arent_files
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assert_equal RealFile.file?('does/not/exist.txt'), File.file?('does/not/exist.txt')
end
def test_can_chown_files
good = 'file.txt'
bad = 'nofile.txt'
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File.open(good,'w') { |f| f.write "foo" }
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out = FileUtils.chown('noone', 'nogroup', good, :verbose => true)
assert_equal [good], out
assert_raises(Errno::ENOENT) do
FileUtils.chown('noone', 'nogroup', bad, :verbose => true)
end
assert_equal [good], FileUtils.chown('noone', 'nogroup', good)
assert_raises(Errno::ENOENT) do
FileUtils.chown('noone', 'nogroup', bad)
end
assert_equal [good], FileUtils.chown('noone', 'nogroup', [good])
assert_raises(Errno::ENOENT) do
FileUtils.chown('noone', 'nogroup', [good, bad])
end
end
def test_can_chown_R_files
FileUtils.mkdir_p '/path/'
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File.open('/path/foo', 'w') { |f| f.write 'foo' }
File.open('/path/foobar', 'w') { |f| f.write 'foo' }
resp = FileUtils.chown_R('no', 'no', '/path')
assert_equal ['/path'], resp
end
def test_dir_globs_paths
FileUtils.mkdir_p '/path'
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File.open('/path/foo', 'w') { |f| f.write 'foo' }
File.open('/path/foobar', 'w') { |f| f.write 'foo' }
FileUtils.mkdir_p '/path/bar'
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File.open('/path/bar/baz', 'w') { |f| f.write 'foo' }
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FileUtils.cp_r '/path/bar', '/path/bar2'
assert_equal ['/path'], Dir['/path']
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assert_equal %w( /path/bar /path/bar2 /path/foo /path/foobar ), Dir['/path/*']
assert_equal ['/path/bar/baz'], Dir['/path/bar/*']
assert_equal ['/path/foo'], Dir['/path/foo']
assert_equal ['/path'], Dir['/path*']
assert_equal ['/path/foo', '/path/foobar'], Dir['/p*h/foo*']
assert_equal ['/path/foo', '/path/foobar'], Dir['/p??h/foo*']
assert_equal ['/path/bar', '/path/bar/baz', '/path/bar2', '/path/bar2/baz', '/path/foo', '/path/foobar'], Dir['/path/**/*']
assert_equal ['/path', '/path/bar', '/path/bar/baz', '/path/bar2', '/path/bar2/baz', '/path/foo', '/path/foobar'], Dir['/**/*']
assert_equal ['/path/bar', '/path/bar/baz', '/path/bar2', '/path/bar2/baz', '/path/foo', '/path/foobar'], Dir['/path/**/*']
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assert_equal ['/path/bar/baz'], Dir['/path/bar/**/*']
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assert_equal ['/path/bar', '/path/foo'], Dir['/path/{foo,bar}'].sort
FileUtils.cp_r '/path', '/otherpath'
assert_equal %w( /otherpath/foo /otherpath/foobar /path/foo /path/foobar ), Dir['/*/foo*']
end
def test_dir_glob_handles_root
FileUtils.mkdir_p '/path'
# this fails. the root dir should be named '/' but it is '.'
#assert_equal ['/'], Dir['/']
end
def test_dir_glob_handles_recursive_globs
File.open('/one/two/three/four.rb', 'w')
File.open('/one/five.rb', 'w')
assert_equal ['/one/five.rb', '/one/two/three/four.rb'], Dir['/one/**/*.rb']
assert_equal ['/one/two'], Dir['/one/**/two']
assert_equal ['/one/two/three'], Dir['/one/**/three']
end
def test_dir_recursive_glob_ending_in_wildcards_returns_both_files_and_dirs
File.open('/one/two/three/four.rb', 'w')
File.open('/one/five.rb', 'w')
assert_equal ['/one/five.rb', '/one/two', '/one/two/three', '/one/two/three/four.rb'], Dir['/one/**/*']
assert_equal ['/one/five.rb', '/one/two'], Dir['/one/**']
end
def test_dir_glob_with_block
FileUtils.touch('foo')
FileUtils.touch('bar')
yielded = []
Dir.glob('*') { |file| yielded << file }
assert_equal 2, yielded.size
end
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def test_should_report_pos_as_0_when_opening
File.open("/foo", "w") do |f|
f << "foobar"
f.rewind
assert_equal 0, f.pos
end
end
def test_should_report_pos_as_1_when_seeking_one_char
File.open("/foo", "w") do |f|
f << "foobar"
f.rewind
f.seek(1)
assert_equal 1, f.pos
end
end
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def test_should_set_pos
File.open("/foo", "w") do |f|
f << "foo"
end
fp = File.open("/foo", "r")
fp.pos = 1
assert_equal 1, fp.pos
end
def test_should_set_pos_with_tell_method
File.open("/foo", "w") do |f|
f << "foo"
end
fp = File.open("/foo", "r")
fp.tell = 1
assert_equal 1, fp.pos
end
# Every method in File is in FakeFS::File
RealFile.instance_methods.each do |method_name|
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define_method "test_should_have_method_#{method_name}_from_real_file_class" do
assert File.instance_methods.include?(method_name)
end
end
# No methods which are in StringIO that aren't in File are included into
# FakeFS::File (because of inheritence)
uniq_string_io_methods = StringIO.instance_methods - RealFile.instance_methods
uniq_string_io_methods.each do |method_name|
define_method "test_file_should_not_respond_to_#{method_name}" do
assert !File.instance_methods.include?(method_name)
end
end
def test_does_not_remove_methods_from_stringio
stringio = StringIO.new("foo")
assert stringio.respond_to?(:size)
end
def test_chdir_changes_directories_like_a_boss
# I know memes!
FileUtils.mkdir_p '/path'
assert_equal '.', FileSystem.fs.name
assert_equal({}, FileSystem.fs['path'])
Dir.chdir '/path' do
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File.open('foo', 'w') { |f| f.write 'foo'}
File.open('foobar', 'w') { |f| f.write 'foo'}
end
assert_equal '.', FileSystem.fs.name
assert_equal(['foo', 'foobar'], FileSystem.fs['path'].keys.sort)
c = nil
Dir.chdir '/path' do
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c = File.open('foo', 'r') { |f| f.read }
end
assert_equal 'foo', c
end
def test_chdir_shouldnt_keep_us_from_absolute_paths
FileUtils.mkdir_p '/path'
Dir.chdir '/path' do
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File.open('foo', 'w') { |f| f.write 'foo'}
File.open('/foobar', 'w') { |f| f.write 'foo'}
end
assert_equal ['foo'], FileSystem.fs['path'].keys.sort
assert_equal ['foobar', 'path'], FileSystem.fs.keys.sort
Dir.chdir '/path' do
FileUtils.rm('foo')
FileUtils.rm('/foobar')
end
assert_equal [], FileSystem.fs['path'].keys.sort
assert_equal ['path'], FileSystem.fs.keys.sort
end
def test_chdir_should_be_nestable
FileUtils.mkdir_p '/path/me'
Dir.chdir '/path' do
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File.open('foo', 'w') { |f| f.write 'foo'}
Dir.chdir 'me' do
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File.open('foobar', 'w') { |f| f.write 'foo'}
end
end
assert_equal ['foo','me'], FileSystem.fs['path'].keys.sort
assert_equal ['foobar'], FileSystem.fs['path']['me'].keys.sort
end
def test_chdir_should_flop_over_and_die_if_the_dir_doesnt_exist
assert_raise(Errno::ENOENT) do
Dir.chdir('/nope') do
1
end
end
end
def test_chdir_shouldnt_lose_state_because_of_errors
FileUtils.mkdir_p '/path'
Dir.chdir '/path' do
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File.open('foo', 'w') { |f| f.write 'foo'}
File.open('foobar', 'w') { |f| f.write 'foo'}
end
begin
Dir.chdir('/path') do
raise Exception
end
rescue Exception # hardcore
end
Dir.chdir('/path') do
begin
Dir.chdir('nope'){ }
rescue Errno::ENOENT
end
assert_equal ['/path'], FileSystem.dir_levels
end
assert_equal(['foo', 'foobar'], FileSystem.fs['path'].keys.sort)
end
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def test_chdir_with_no_block_is_awesome
FileUtils.mkdir_p '/path'
Dir.chdir('/path')
FileUtils.mkdir_p 'subdir'
assert_equal ['subdir'], FileSystem.current_dir.keys
Dir.chdir('subdir')
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File.open('foo', 'w') { |f| f.write 'foo'}
assert_equal ['foo'], FileSystem.current_dir.keys
assert_raises(Errno::ENOENT) do
Dir.chdir('subsubdir')
end
assert_equal ['foo'], FileSystem.current_dir.keys
end
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def test_current_dir_reflected_by_pwd
FileUtils.mkdir_p '/path'
Dir.chdir('/path')
assert_equal '/path', Dir.pwd
assert_equal '/path', Dir.getwd
FileUtils.mkdir_p 'subdir'
Dir.chdir('subdir')
assert_equal '/path/subdir', Dir.pwd
assert_equal '/path/subdir', Dir.getwd
end
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def test_file_open_defaults_to_read
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File.open('foo','w') { |f| f.write 'bar' }
assert_equal 'bar', File.open('foo') { |f| f.read }
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end
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def test_flush_exists_on_file
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r = File.open('foo','w') { |f| f.write 'bar'; f.flush }
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assert_equal 'foo', r.path
end
def test_mv_should_raise_error_on_missing_file
assert_raise(Errno::ENOENT) do
FileUtils.mv 'blafgag', 'foo'
end
end
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def test_mv_actually_works
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File.open('foo', 'w') { |f| f.write 'bar' }
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FileUtils.mv 'foo', 'baz'
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assert_equal 'bar', File.open('baz') { |f| f.read }
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end
def test_mv_works_with_options
File.open('foo', 'w') {|f| f.write 'bar'}
FileUtils.mv 'foo', 'baz', :force => true
assert_equal('bar', File.open('baz') { |f| f.read })
end
def test_mv_to_directory
File.open('foo', 'w') {|f| f.write 'bar'}
FileUtils.mkdir_p 'destdir'
FileUtils.mv 'foo', 'destdir'
assert_equal('bar', File.open('destdir/foo') {|f| f.read })
assert File.directory?('destdir')
end
def test_mv_array
File.open('foo', 'w') {|f| f.write 'bar' }
File.open('baz', 'w') {|f| f.write 'binky' }
FileUtils.mkdir_p 'destdir'
FileUtils.mv %w(foo baz), 'destdir'
assert_equal('bar', File.open('destdir/foo') {|f| f.read })
assert_equal('binky', File.open('destdir/baz') {|f| f.read })
end
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def test_cp_actually_works
File.open('foo', 'w') {|f| f.write 'bar' }
FileUtils.cp('foo', 'baz')
assert_equal 'bar', File.read('baz')
end
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def test_cp_file_into_dir
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File.open('foo', 'w') {|f| f.write 'bar' }
FileUtils.mkdir_p 'baz'
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FileUtils.cp('foo', 'baz')
assert_equal 'bar', File.read('baz/foo')
end
def test_cp_overwrites_dest_file
File.open('foo', 'w') {|f| f.write 'FOO' }
File.open('bar', 'w') {|f| f.write 'BAR' }
FileUtils.cp('foo', 'bar')
assert_equal 'FOO', File.read('bar')
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end
def test_cp_fails_on_no_source
assert_raise Errno::ENOENT do
FileUtils.cp('foo', 'baz')
end
end
def test_cp_fails_on_directory_copy
FileUtils.mkdir_p 'baz'
assert_raise Errno::EISDIR do
FileUtils.cp('baz', 'bar')
end
end
def test_cp_r_doesnt_tangle_files_together
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File.open('foo', 'w') { |f| f.write 'bar' }
FileUtils.cp_r('foo', 'baz')
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File.open('baz', 'w') { |f| f.write 'quux' }
assert_equal 'bar', File.open('foo') { |f| f.read }
end
def test_cp_r_should_raise_error_on_missing_file
# Yes, this error sucks, but it conforms to the original Ruby
# method.
assert_raise(RuntimeError) do
FileUtils.cp_r 'blafgag', 'foo'
end
end
def test_cp_r_handles_copying_directories
FileUtils.mkdir_p 'subdir'
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Dir.chdir('subdir'){ File.open('foo', 'w') { |f| f.write 'footext' } }
FileUtils.mkdir_p 'baz'
# To a previously uncreated directory
FileUtils.cp_r('subdir', 'quux')
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assert_equal 'footext', File.open('quux/foo') { |f| f.read }
# To a directory that already exists
FileUtils.cp_r('subdir', 'baz')
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assert_equal 'footext', File.open('baz/subdir/foo') { |f| f.read }
# To a subdirectory of a directory that does not exist
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assert_raises(Errno::ENOENT) do
FileUtils.cp_r('subdir', 'nope/something')
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end
end
def test_cp_r_only_copies_into_directories
FileUtils.mkdir_p 'subdir'
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Dir.chdir('subdir') { File.open('foo', 'w') { |f| f.write 'footext' } }
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File.open('bar', 'w') { |f| f.write 'bartext' }
assert_raises(Errno::EEXIST) do
FileUtils.cp_r 'subdir', 'bar'
end
FileUtils.mkdir_p 'otherdir'
FileUtils.ln_s 'otherdir', 'symdir'
FileUtils.cp_r 'subdir', 'symdir'
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assert_equal 'footext', File.open('symdir/subdir/foo') { |f| f.read }
end
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def test_cp_r_sets_parent_correctly
FileUtils.mkdir_p '/path/foo'
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File.open('/path/foo/bar', 'w') { |f| f.write 'foo' }
File.open('/path/foo/baz', 'w') { |f| f.write 'foo' }
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FileUtils.cp_r '/path/foo', '/path/bar'
assert File.exists?('/path/bar/baz')
FileUtils.rm_rf '/path/bar/baz'
assert_equal %w( /path/bar/bar ), Dir['/path/bar/*']
end
def test_clone_clones_normal_files
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RealFile.open(here('foo'), 'w') { |f| f.write 'bar' }
assert !File.exists?(here('foo'))
FileSystem.clone(here('foo'))
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assert_equal 'bar', File.open(here('foo')) { |f| f.read }
ensure
RealFile.unlink(here('foo')) if RealFile.exists?(here('foo'))
end
def test_clone_clones_directories
FakeFS.deactivate!
RealFileUtils.mkdir_p(here('subdir'))
FakeFS.activate!
FileSystem.clone(here('subdir'))
assert File.exists?(here('subdir')), 'subdir was cloned'
assert File.directory?(here('subdir')), 'subdir is a directory'
ensure
FakeFS.deactivate!
RealFileUtils.rm_rf(here('subdir'))
FakeFS.activate!
end
def test_clone_clones_dot_files_even_hard_to_find_ones
FakeFS.deactivate!
RealFileUtils.mkdir_p(here('subdir/.bar/baz/.quux/foo'))
FakeFS.activate!
assert !File.exists?(here('subdir'))
FileSystem.clone(here('subdir'))
assert_equal ['.bar'], FileSystem.find(here('subdir')).keys
assert_equal ['foo'], FileSystem.find(here('subdir/.bar/baz/.quux')).keys
ensure
FakeFS.deactivate!
RealFileUtils.rm_rf(here('subdir'))
FakeFS.activate!
end
def test_putting_a_dot_at_end_copies_the_contents
FileUtils.mkdir_p 'subdir'
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Dir.chdir('subdir') { File.open('foo', 'w') { |f| f.write 'footext' } }
FileUtils.mkdir_p 'newdir'
FileUtils.cp_r 'subdir/.', 'newdir'
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assert_equal 'footext', File.open('newdir/foo') { |f| f.read }
end
def test_file_can_read_from_symlinks
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File.open('first', 'w') { |f| f.write '1'}
FileUtils.ln_s 'first', 'one'
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assert_equal '1', File.open('one') { |f| f.read }
FileUtils.mkdir_p 'subdir'
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File.open('subdir/nother','w') { |f| f.write 'works' }
FileUtils.ln_s 'subdir', 'new'
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assert_equal 'works', File.open('new/nother') { |f| f.read }
end
def test_can_symlink_through_file
FileUtils.touch("/foo")
File.symlink("/foo", "/bar")
assert File.symlink?("/bar")
end
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def test_files_can_be_touched
FileUtils.touch('touched_file')
assert File.exists?('touched_file')
list = ['newfile', 'another']
FileUtils.touch(list)
list.each { |fp| assert(File.exists?(fp)) }
end
def test_touch_does_not_work_if_the_dir_path_cannot_be_found
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assert_raises(Errno::ENOENT) do
FileUtils.touch('this/path/should/not/be/here')
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end
FileUtils.mkdir_p('subdir')
list = ['subdir/foo', 'nosubdir/bar']
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assert_raises(Errno::ENOENT) do
FileUtils.touch(list)
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end
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end
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def test_extname
assert File.extname("test.doc") == ".doc"
end
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# Directory tests
def test_new_directory
FileUtils.mkdir_p('/this/path/should/be/here')
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assert_nothing_raised do
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Dir.new('/this/path/should/be/here')
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end
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end
def test_new_directory_does_not_work_if_dir_path_cannot_be_found
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assert_raises(Errno::ENOENT) do
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Dir.new('/this/path/should/not/be/here')
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end
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end
def test_directory_close
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FileUtils.mkdir_p('/this/path/should/be/here')
dir = Dir.new('/this/path/should/be/here')
assert dir.close.nil?
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assert_raises(IOError) do
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dir.each { |dir| dir }
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end
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end
def test_directory_each
test = ['.', '..', 'file_1', 'file_2', 'file_3', 'file_4', 'file_5' ]
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FileUtils.mkdir_p('/this/path/should/be/here')
test.each do |f|
FileUtils.touch("/this/path/should/be/here/#{f}")
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end
dir = Dir.new('/this/path/should/be/here')
yielded = []
dir.each do |dir|
yielded << dir
end
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assert yielded.size == test.size
test.each { |t| assert yielded.include?(t) }
end
def test_directory_path
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FileUtils.mkdir_p('/this/path/should/be/here')
good_path = '/this/path/should/be/here'
assert_equal good_path, Dir.new('/this/path/should/be/here').path
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end
def test_directory_pos
test = ['.', '..', 'file_1', 'file_2', 'file_3', 'file_4', 'file_5' ]
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FileUtils.mkdir_p('/this/path/should/be/here')
test.each do |f|
FileUtils.touch("/this/path/should/be/here/#{f}")
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end
dir = Dir.new('/this/path/should/be/here')
assert dir.pos == 0
dir.read
assert dir.pos == 1
dir.read
assert dir.pos == 2
dir.read
assert dir.pos == 3
dir.read
assert dir.pos == 4
dir.read
assert dir.pos == 5
end
def test_directory_pos_assign
test = ['.', '..', 'file_1', 'file_2', 'file_3', 'file_4', 'file_5' ]
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FileUtils.mkdir_p('/this/path/should/be/here')
test.each do |f|
FileUtils.touch("/this/path/should/be/here/#{f}")
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end
dir = Dir.new('/this/path/should/be/here')
assert dir.pos == 0
dir.pos = 2
assert dir.pos == 2
end
def test_directory_read
test = ['.', '..', 'file_1', 'file_2', 'file_3', 'file_4', 'file_5' ]
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FileUtils.mkdir_p('/this/path/should/be/here')
test.each do |f|
FileUtils.touch("/this/path/should/be/here/#{f}")
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end
dir = Dir.new('/this/path/should/be/here')
assert dir.pos == 0
d = dir.read
assert dir.pos == 1
assert d == '.'
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d = dir.read
assert dir.pos == 2
assert d == '..'
end
def test_directory_read_past_length
test = ['.', '..', 'file_1', 'file_2', 'file_3', 'file_4', 'file_5' ]
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FileUtils.mkdir_p('/this/path/should/be/here')
test.each do |f|
FileUtils.touch("/this/path/should/be/here/#{f}")
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end
dir = Dir.new('/this/path/should/be/here')
d = dir.read
assert_not_nil d
d = dir.read
assert_not_nil d
d = dir.read
assert_not_nil d
d = dir.read
assert_not_nil d
d = dir.read
assert_not_nil d
d = dir.read
assert_not_nil d
d = dir.read
assert_not_nil d
d = dir.read
assert_nil d
end
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def test_directory_rewind
test = ['.', '..', 'file_1', 'file_2', 'file_3', 'file_4', 'file_5' ]
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FileUtils.mkdir_p('/this/path/should/be/here')
test.each do |f|
FileUtils.touch("/this/path/should/be/here/#{f}")
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end
dir = Dir.new('/this/path/should/be/here')
d = dir.read
d = dir.read
assert dir.pos == 2
dir.rewind
assert dir.pos == 0
end
def test_directory_seek
test = ['.', '..', 'file_1', 'file_2', 'file_3', 'file_4', 'file_5' ]
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FileUtils.mkdir_p('/this/path/should/be/here')
test.each do |f|
FileUtils.touch("/this/path/should/be/here/#{f}")
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end
dir = Dir.new('/this/path/should/be/here')
d = dir.seek 1
assert d == '..'
assert dir.pos == 1
end
def test_directory_class_delete
FileUtils.mkdir_p('/this/path/should/be/here')
Dir.delete('/this/path/should/be/here')
assert File.exists?('/this/path/should/be/here') == false
end
def test_directory_class_delete_does_not_act_on_non_empty_directory
test = ['.', '..', 'file_1', 'file_2', 'file_3', 'file_4', 'file_5' ]
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FileUtils.mkdir_p('/this/path/should/be/here')
test.each do |f|
FileUtils.touch("/this/path/should/be/here/#{f}")
end
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assert_raises(SystemCallError) do
Dir.delete('/this/path/should/be/here')
end
end
def test_directory_entries
test = ['.', '..', 'file_1', 'file_2', 'file_3', 'file_4', 'file_5' ]
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FileUtils.mkdir_p('/this/path/should/be/here')
test.each do |f|
FileUtils.touch("/this/path/should/be/here/#{f}")
end
yielded = Dir.entries('/this/path/should/be/here')
assert yielded.size == test.size
test.each { |t| assert yielded.include?(t) }
end
def test_directory_entries_works_with_trailing_slash
test = ['.', '..', 'file_1', 'file_2', 'file_3', 'file_4', 'file_5' ]
FileUtils.mkdir_p('/this/path/should/be/here')
test.each do |f|
FileUtils.touch("/this/path/should/be/here/#{f}")
end
yielded = Dir.entries('/this/path/should/be/here/')
assert yielded.size == test.size
test.each { |t| assert yielded.include?(t) }
end
def test_directory_foreach
test = ['.', '..', 'file_1', 'file_2', 'file_3', 'file_4', 'file_5' ]
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FileUtils.mkdir_p('/this/path/should/be/here')
test.each do |f|
FileUtils.touch("/this/path/should/be/here/#{f}")
end
yielded = []
Dir.foreach('/this/path/should/be/here') do |dir|
yielded << dir
end
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assert yielded.size == test.size
test.each { |t| assert yielded.include?(t) }
end
def test_directory_mkdir
Dir.mkdir('/path')
assert File.exists?('/path')
end
def test_directory_mkdir_relative
FileUtils.mkdir_p('/new/root')
FileSystem.chdir('/new/root')
Dir.mkdir('path')
assert File.exists?('/new/root/path')
end
def test_directory_mkdir_not_recursive
assert_raises(Errno::ENOENT) do
Dir.mkdir('/path/does/not/exist')
end
end
def test_mkdir_raises_error_if_already_created
Dir.mkdir "foo"
assert_raises(Errno::EEXIST) do
Dir.mkdir "foo"
end
end
def test_directory_open
test = ['.', '..', 'file_1', 'file_2', 'file_3', 'file_4', 'file_5' ]
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FileUtils.mkdir_p('/this/path/should/be/here')
test.each do |f|
FileUtils.touch("/this/path/should/be/here/#{f}")
end
dir = Dir.open('/this/path/should/be/here')
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assert dir.path == '/this/path/should/be/here'
end
def test_directory_open_block
test = ['.', '..', 'file_1', 'file_2', 'file_3', 'file_4', 'file_5' ]
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FileUtils.mkdir_p('/this/path/should/be/here')
test.each do |f|
FileUtils.touch("/this/path/should/be/here/#{f}")
end
yielded = []
Dir.open('/this/path/should/be/here') do |dir|
yielded << dir
end
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assert yielded.size == test.size
test.each { |t| assert yielded.include?(t) }
end
def test_tmpdir
assert Dir.tmpdir == "/tmp"
end
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def test_rename_renames_a_file
FileUtils.touch("/foo")
File.rename("/foo", "/bar")
assert File.file?("/bar")
end
def test_rename_returns
FileUtils.touch("/foo")
assert_equal 0, File.rename("/foo", "/bar")
end
def test_rename_renames_two_files
FileUtils.touch("/foo")
FileUtils.touch("/bar")
File.rename("/foo", "/bar")
assert File.file?("/bar")
end
def test_rename_renames_a_directories
Dir.mkdir("/foo")
File.rename("/foo", "/bar")
assert File.directory?("/bar")
end
def test_rename_renames_two_directories
Dir.mkdir("/foo")
Dir.mkdir("/bar")
File.rename("/foo", "/bar")
assert File.directory?("/bar")
end
def test_rename_file_to_directory_raises_error
FileUtils.touch("/foo")
Dir.mkdir("/bar")
assert_raises(Errno::EISDIR) do
File.rename("/foo", "/bar")
end
end
def test_rename_directory_to_file_raises_error
Dir.mkdir("/foo")
FileUtils.touch("/bar")
assert_raises(Errno::ENOTDIR) do
File.rename("/foo", "/bar")
end
end
def test_rename_with_missing_source_raises_error
assert_raises(Errno::ENOENT) do
File.rename("/no_such_file", "/bar")
end
end
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def test_hard_link_creates_file
FileUtils.touch("/foo")
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File.link("/foo", "/bar")
assert File.exists?("/bar")
end
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def test_hard_link_with_missing_file_raises_error
assert_raises(Errno::ENOENT) do
File.link("/foo", "/bar")
end
end
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def test_hard_link_with_existing_destination_file
FileUtils.touch("/foo")
FileUtils.touch("/bar")
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assert_raises(Errno::EEXIST) do
File.link("/foo", "/bar")
end
end
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def test_hard_link_returns_0_when_successful
FileUtils.touch("/foo")
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assert_equal 0, File.link("/foo", "/bar")
end
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def test_hard_link_returns_duplicate_file
File.open("/foo", "w") { |x| x << "some content" }
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File.link("/foo", "/bar")
assert_equal "some content", File.read("/bar")
end
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def test_hard_link_with_directory_raises_error
Dir.mkdir "/foo"
assert_raises(Errno::EPERM) do
File.link("/foo", "/bar")
end
end
def test_file_stat_returns_file_stat_object
FileUtils.touch("/foo")
assert_equal File::Stat, File.stat("/foo").class
end
def test_can_delete_file_with_delete
FileUtils.touch("/foo")
File.delete("/foo")
assert !File.exists?("/foo")
end
def test_can_delete_multiple_files_with_delete
FileUtils.touch("/foo")
FileUtils.touch("/bar")
File.delete("/foo", "/bar")
assert !File.exists?("/foo")
assert !File.exists?("/bar")
end
def test_delete_raises_argument_error_with_no_filename_given
assert_raises ArgumentError do
File.delete
end
end
def test_delete_returns_number_one_when_given_one_arg
FileUtils.touch("/foo")
assert_equal 1, File.delete("/foo")
end
def test_delete_returns_number_two_when_given_two_args
FileUtils.touch("/foo")
FileUtils.touch("/bar")
assert_equal 2, File.delete("/foo", "/bar")
end
def test_delete_raises_error_when_first_file_does_not_exist
assert_raises Errno::ENOENT do
File.delete("/foo")
end
end
def test_delete_does_not_raise_error_when_second_file_does_not_exist
FileUtils.touch("/foo")
assert_nothing_raised do
File.delete("/foo", "/bar")
end
end
def test_unlink_is_alias_for_delete
assert_equal File.method(:unlink), File.method(:delete)
end
def test_unlink_removes_only_one_file_content
File.open("/foo", "w") { |f| f << "some_content" }
File.link("/foo", "/bar")
File.unlink("/bar")
File.read("/foo") == "some_content"
end
def test_link_reports_correct_stat_info_after_unlinking
File.open("/foo", "w") { |f| f << "some_content" }
File.link("/foo", "/bar")
File.unlink("/bar")
assert_equal 1, File.stat("/foo").nlink
end
def test_delete_works_with_symlink
FileUtils.touch("/foo")
File.symlink("/foo", "/bar")
File.unlink("/bar")
assert File.exists?("/foo")
assert !File.exists?("/bar")
end
def test_delete_works_with_symlink_source
FileUtils.touch("/foo")
File.symlink("/foo", "/bar")
File.unlink("/foo")
assert !File.exists?("/foo")
end
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def test_file_seek_returns_0
File.open("/foo", "w") do |f|
f << "one\ntwo\nthree"
end
file = File.open("/foo", "r")
assert_equal 0, file.seek(1)
end
def test_file_seek_seeks_to_location
File.open("/foo", "w") do |f|
f << "123"
end
file = File.open("/foo", "r")
file.seek(1)
assert_equal "23", file.read
end
def test_file_seek_seeks_to_correct_location
File.open("/foo", "w") do |f|
f << "123"
end
file = File.open("/foo", "r")
file.seek(2)
assert_equal "3", file.read
end
def test_file_seek_can_take_negative_offset
File.open("/foo", "w") do |f|
f << "123456789"
end
file = File.open("/foo", "r")
file.seek(-1, IO::SEEK_END)
assert_equal "9", file.read
file.seek(-2, IO::SEEK_END)
assert_equal "89", file.read
file.seek(-3, IO::SEEK_END)
assert_equal "789", file.read
end
def test_should_have_constants_inherited_from_descending_from_io
assert_equal IO::SEEK_CUR, File::SEEK_CUR
assert_equal IO::SEEK_END, File::SEEK_END
assert_equal IO::SEEK_SET, File::SEEK_SET
end
def test_filetest_exists_return_correct_values
FileUtils.mkdir_p("/path/to/dir")
assert FileTest.exist?("/path/to/")
FileUtils.rmdir("/path/to/dir")
assert !FileTest.exist?("/path/to/dir")
end
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def test_pathname_exists_returns_correct_value
FileUtils.touch "foo"
assert Pathname.new("foo").exist?
assert !Pathname.new("bar").exist?
end
def test_activating_returns_true
FakeFS.deactivate!
assert_equal true, FakeFS.activate!
end
def test_deactivating_returns_true
assert_equal true, FakeFS.deactivate!
end
def here(fname)
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RealFile.expand_path(File.join(RealFile.dirname(__FILE__), fname))
end
if RUBY_VERSION >= "1.9.2"
def test_file_size
File.open("foo", 'w') do |f|
f << 'Yada Yada'
assert_equal 9, f.size
end
end
def test_fdatasync
File.open("foo", 'w') do |f|
f << 'Yada Yada'
assert_nothing_raised do
f.fdatasync
end
end
end
def test_autoclose
File.open("foo", 'w') do |f|
assert_equal true, f.autoclose?
f.autoclose = false
assert_equal false, f.autoclose?
end
end
end
end