39 lines
773 B
Ruby
39 lines
773 B
Ruby
RealFile = File
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RealFileUtils = FileUtils
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RealDir = Dir
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RealFileUtils::Dir = RealDir
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RealFileUtils::File = RealFile
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module FakeFS
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def self.activate!
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Object.class_eval do
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remove_const(:Dir)
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remove_const(:File)
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remove_const(:FileUtils)
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const_set(:Dir, FakeFS::Dir)
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const_set(:File, FakeFS::File)
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const_set(:FileUtils, FakeFS::FileUtils)
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end
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end
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def self.deactivate!
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Object.class_eval do
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remove_const(:Dir)
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remove_const(:File)
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remove_const(:FileUtils)
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const_set(:Dir, RealDir)
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const_set(:File, RealFile)
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const_set(:FileUtils, RealFileUtils)
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end
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end
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end
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def FakeFS
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return ::FakeFS unless block_given?
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::FakeFS.activate!
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result = yield
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::FakeFS.deactivate!
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result
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end
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