45 lines
1008 B
Ruby
45 lines
1008 B
Ruby
require "test_helper"
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class FakeFSSafeTest < Test::Unit::TestCase
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def setup
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FakeFS.deactivate!
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end
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def teardown
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FakeFS.activate!
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end
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def test_FakeFS_method_does_not_intrude_on_global_namespace
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path = '/path/to/file.txt'
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FakeFS do
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File.open(path, 'w') { |f| f.write "Yatta!" }
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assert File.exists?(path)
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end
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assert ! File.exists?(path)
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end
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def test_FakeFS_method_returns_value_of_yield
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result = FakeFS do
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File.open('myfile.txt', 'w') { |f| f.write "Yatta!" }
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File.read('myfile.txt')
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end
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assert_equal result, "Yatta!"
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end
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def test_FakeFS_method_deactivates_FakeFS_when_block_raises_exception
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begin
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FakeFS do
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raise 'boom!'
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end
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rescue
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end
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assert_equal RealFile, File, "File is #{File} (should be #{RealFile})"
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assert_equal RealFileUtils, FileUtils, "FileUtils is #{FileUtils} (should be #{RealFileUtils})"
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assert_equal RealDir, Dir, "Dir is #{Dir} (should be #{RealDir})"
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end
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end
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