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20 lines
796 B
Ruby
20 lines
796 B
Ruby
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require File.join(File.dirname(__FILE__), '..', 'spec_helper')
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describe JoinRelation, 'between two relations' do
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before do
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@relation1 = TableRelation.new(:foo)
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@relation2 = TableRelation.new(:bar)
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@predicate = Predicate.new
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end
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describe JoinRelation, '==' do
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it "obtains if the two relations and the predicate are identical" do
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JoinRelation.new(@relation1, @relation2, @predicate).should == JoinRelation.new(@relation1, @relation2, @predicate)
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JoinRelation.new(@relation1, @relation2, @predicate).should_not == JoinRelation.new(@relation1, @relation1, @predicate)
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end
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it "is commutative on the relations" do
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JoinRelation.new(@relation1, @relation2, @predicate).should == JoinRelation.new(@relation2, @relation1, @predicate)
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end
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end
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end
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