diff options
Diffstat (limited to 'activesupport/test/core_ext')
-rw-r--r-- | activesupport/test/core_ext/file_test.rb | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/activesupport/test/core_ext/file_test.rb b/activesupport/test/core_ext/file_test.rb new file mode 100644 index 0000000000..a7a8324125 --- /dev/null +++ b/activesupport/test/core_ext/file_test.rb @@ -0,0 +1,29 @@ +require File.dirname(__FILE__) + '/../abstract_unit' + +class AtomicWriteTest < Test::Unit::TestCase + + def test_atomic_write_without_errors + contents = "Atomic Text" + File.atomic_write(file_name) do |file| + file.write(contents) + assert !File.exists?(file_name) + end + assert File.exists?(file_name) + assert_equal contents, File.read(file_name) + ensure + File.unlink(file_name) + end + + 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.exists?(file_name) + end + + def file_name + "atomic.file" + end +end |