Created
September 21, 2009 08:56
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def test_open_with_write_clears_existing_file | |
FileUtils.mkdir_p('/path/to') | |
path = '/path/to/file.txt' | |
File.open(path, 'w') do |f| | |
f << 'Yada Yada' | |
end | |
File.open(path, 'w') do |f| | |
f << 'Yada Yada' | |
end | |
assert_equal 'Yada Yada', File.read(path) | |
end | |
def test_File_new_in_write_mode_writes_empty_file_immediately | |
path = '/path/to/file.txt' | |
assert !File.exists?(path), "test file should not exist yet" | |
f = File.new(other, 'w') | |
assert File.exists?(path), "test file should now exist" | |
end | |
def test_File_new_errors_if_directory_above_it_does_not_exist | |
assert_raises(Errno::ENOENT) { | |
File.new('/path/to/file.txt', 'w') | |
} | |
assert_raises(Errno::ENOENT) { | |
File.new('/path/to/file.txt', 'r') | |
} | |
assert !File.exists?('/path/to/file.txt'), "file is not written to" | |
FileUtils.mkdir_p('/path/to') | |
assert_nothing_raised { | |
File.new('/path/to/file.txt', 'w') | |
} | |
assert_nothing_raised { | |
File.new('/path/to/file.txt', 'r') | |
} | |
assert File.exists?('/path/to/file.txt') | |
assert_equal "", File.read('/path/to/file.txt') | |
end |
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