class AtomicWriteTest

Public Instance Methods

test_atomic_write_doesnt_write_when_block_raises() click to toggle source
# File activesupport/test/core_ext/file_test.rb, line 19
def test_atomic_write_doesnt_write_when_block_raises
  File.atomic_write(file_name) do |file|
    file.write("testing")
    raise "something bad"
  end
rescue
  assert !File.exist?(file_name)
end
test_atomic_write_preserves_default_file_permissions() click to toggle source
# File activesupport/test/core_ext/file_test.rb, line 49
def test_atomic_write_preserves_default_file_permissions
  contents = "Atomic Text"
  File.atomic_write(file_name, Dir.pwd) do |file|
    file.write(contents)
    assert !File.exist?(file_name)
  end
  assert File.exist?(file_name)
  assert_equal File.probe_stat_in(Dir.pwd).mode, file_mode
  assert_equal contents, File.read(file_name)
ensure
  File.unlink(file_name) rescue nil
end
test_atomic_write_preserves_file_permissions() click to toggle source
# File activesupport/test/core_ext/file_test.rb, line 28
def test_atomic_write_preserves_file_permissions
  contents = "Atomic Text"
  File.open(file_name, "w", 0755) do |file|
    file.write(contents)
    assert File.exist?(file_name)
  end
  assert File.exist?(file_name)
  assert_equal 0100755 & ~File.umask, file_mode
  assert_equal contents, File.read(file_name)

  File.atomic_write(file_name, Dir.pwd) do |file|
    file.write(contents)
    assert File.exist?(file_name)
  end
  assert File.exist?(file_name)
  assert_equal 0100755 & ~File.umask, file_mode
  assert_equal contents, File.read(file_name)
ensure
  File.unlink(file_name) rescue nil
end
test_atomic_write_returns_result_from_yielded_block() click to toggle source
# File activesupport/test/core_ext/file_test.rb, line 62
def test_atomic_write_returns_result_from_yielded_block
  block_return_value = File.atomic_write(file_name, Dir.pwd) do |file|
    "Hello world!"
  end

  assert_equal "Hello world!", block_return_value
ensure
  File.unlink(file_name) rescue nil
end
test_atomic_write_without_errors() click to toggle source
# File activesupport/test/core_ext/file_test.rb, line 7
def test_atomic_write_without_errors
  contents = "Atomic Text"
  File.atomic_write(file_name, Dir.pwd) do |file|
    file.write(contents)
    assert !File.exist?(file_name)
  end
  assert File.exist?(file_name)
  assert_equal contents, File.read(file_name)
ensure
  File.unlink(file_name) rescue nil
end

Private Instance Methods

file_mode() click to toggle source
# File activesupport/test/core_ext/file_test.rb, line 77
def file_mode
  File.stat(file_name).mode
end
file_name() click to toggle source
# File activesupport/test/core_ext/file_test.rb, line 73
def file_name
  "atomic.file"
end