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* For easier modifications of ruby/spec by MRI developers. * .gitignore: track changes under spec. * spec/mspec, spec/rubyspec: add in-tree mspec and ruby/spec. These files can therefore be updated like any other file in MRI. Instructions are provided in spec/README. [Feature #13156] [ruby-core:79246] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58595 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
34 lines
1.2 KiB
Ruby
34 lines
1.2 KiB
Ruby
require File.expand_path('../../../spec_helper', __FILE__)
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require 'set'
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describe "Set#proper_subset?" do
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before :each do
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@set = Set[1, 2, 3, 4]
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end
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it "returns true if passed a Set that self is a proper subset of" do
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Set[].proper_subset?(@set).should be_true
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Set[].proper_subset?(Set[1, 2, 3]).should be_true
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Set[].proper_subset?(Set["a", :b, ?c]).should be_true
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Set[1, 2, 3].proper_subset?(@set).should be_true
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Set[1, 3].proper_subset?(@set).should be_true
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Set[1, 2].proper_subset?(@set).should be_true
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Set[1].proper_subset?(@set).should be_true
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Set[5].proper_subset?(@set).should be_false
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Set[1, 5].proper_subset?(@set).should be_false
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Set[nil].proper_subset?(@set).should be_false
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Set["test"].proper_subset?(@set).should be_false
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@set.proper_subset?(@set).should be_false
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Set[].proper_subset?(Set[]).should be_false
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end
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it "raises an ArgumentError when passed a non-Set" do
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lambda { Set[].proper_subset?([]) }.should raise_error(ArgumentError)
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lambda { Set[].proper_subset?(1) }.should raise_error(ArgumentError)
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lambda { Set[].proper_subset?("test") }.should raise_error(ArgumentError)
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lambda { Set[].proper_subset?(Object.new) }.should raise_error(ArgumentError)
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end
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end
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