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$LOAD_PATH.unshift File.join(File.dirname(__FILE__), '..', 'lib')
require 'fakefs/safe'
require 'test/unit'
class FakeFSSafeTest < Test::Unit::TestCase
def setup
FakeFS.deactivate!
end
def test_FakeFS_method_does_not_intrude_on_global_namespace
path = '/path/to/file.txt'
FakeFS do
File.open(path, 'w') { |f| f.write "Yatta!" }
assert File.exists?(path)
end
assert ! File.exists?(path)
end
def test_FakeFS_method_returns_value_of_yield
result = FakeFS do
File.open('myfile.txt', 'w') { |f| f.write "Yatta!" }
File.read('myfile.txt')
end
assert_equal result, "Yatta!"
end
def test_FakeFS_method_deactivates_FakeFS_when_block_raises_exception
begin
FakeFS do
raise 'boom!'
end
rescue
end
assert_equal RealFile, File, "File is #{File} (should be #{RealFile})"
assert_equal RealFileUtils, FileUtils, "FileUtils is #{FileUtils} (should be #{RealFileUtils})"
assert_equal RealDir, Dir, "Dir is #{Dir} (should be #{RealDir})"
end
end
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