69 lines
1.8 KiB
Ruby
69 lines
1.8 KiB
Ruby
require 'abstract_unit'
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require 'active_support/core_ext/file'
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class AtomicWriteTest < ActiveSupport::TestCase
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def test_atomic_write_without_errors
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contents = "Atomic Text"
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File.atomic_write(file_name, Dir.pwd) do |file|
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file.write(contents)
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assert !File.exist?(file_name)
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end
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assert File.exist?(file_name)
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assert_equal contents, File.read(file_name)
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ensure
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File.unlink(file_name) rescue nil
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end
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def test_atomic_write_doesnt_write_when_block_raises
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File.atomic_write(file_name) do |file|
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file.write("testing")
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raise "something bad"
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end
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rescue
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assert !File.exist?(file_name)
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end
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def test_atomic_write_preserves_file_permissions
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contents = "Atomic Text"
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File.open(file_name, "w", 0755) do |file|
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file.write(contents)
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assert File.exist?(file_name)
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end
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assert File.exist?(file_name)
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assert_equal 0100755 & ~File.umask, file_mode
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assert_equal contents, File.read(file_name)
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File.atomic_write(file_name, Dir.pwd) do |file|
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file.write(contents)
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assert File.exist?(file_name)
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end
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assert File.exist?(file_name)
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assert_equal 0100755 & ~File.umask, file_mode
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assert_equal contents, File.read(file_name)
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ensure
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File.unlink(file_name) rescue nil
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end
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def test_atomic_write_preserves_default_file_permissions
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contents = "Atomic Text"
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File.atomic_write(file_name, Dir.pwd) do |file|
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file.write(contents)
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assert !File.exist?(file_name)
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end
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assert File.exist?(file_name)
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assert_equal File.probe_stat_in(Dir.pwd).mode, file_mode
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assert_equal contents, File.read(file_name)
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ensure
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File.unlink(file_name) rescue nil
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end
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private
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def file_name
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"atomic.file"
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end
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def file_mode
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File.stat(file_name).mode
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end
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end
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