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require 'spec_helper'
require 'mspec/guards'
describe Object, "#not_supported_on" do
before :each do
ScratchPad.clear
end
it "raises an Exception when passed :ruby" do
stub_const "RUBY_ENGINE", "jruby"
lambda {
not_supported_on(:ruby) { ScratchPad.record :yield }
}.should raise_error(Exception)
ScratchPad.recorded.should_not == :yield
end
it "does not yield when #implementation? returns true" do
stub_const "RUBY_ENGINE", "jruby"
not_supported_on(:jruby) { ScratchPad.record :yield }
ScratchPad.recorded.should_not == :yield
end
it "yields when #standard? returns true" do
stub_const "RUBY_ENGINE", "ruby"
not_supported_on(:rubinius) { ScratchPad.record :yield }
ScratchPad.recorded.should == :yield
end
it "yields when #implementation? returns false" do
stub_const "RUBY_ENGINE", "jruby"
not_supported_on(:rubinius) { ScratchPad.record :yield }
ScratchPad.recorded.should == :yield
end
end
describe Object, "#not_supported_on" do
before :each do
@guard = SupportedGuard.new
SupportedGuard.stub(:new).and_return(@guard)
end
it "sets the name of the guard to :not_supported_on" do
not_supported_on(:rubinius) { }
@guard.name.should == :not_supported_on
end
it "calls #unregister even when an exception is raised in the guard block" do
@guard.should_receive(:match?).and_return(false)
@guard.should_receive(:unregister)
lambda do
not_supported_on(:rubinius) { raise Exception }
end.should raise_error(Exception)
end
end
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