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Diffstat (limited to 'spec/arel/algebra/unit/predicates/binary_spec.rb')
| -rw-r--r-- | spec/arel/algebra/unit/predicates/binary_spec.rb | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/spec/arel/algebra/unit/predicates/binary_spec.rb b/spec/arel/algebra/unit/predicates/binary_spec.rb new file mode 100644 index 0000000000..9022a543d1 --- /dev/null +++ b/spec/arel/algebra/unit/predicates/binary_spec.rb @@ -0,0 +1,33 @@ +require File.join(File.dirname(__FILE__), '..', '..', '..', '..', 'spec_helper') + +module Arel + describe Binary do + before do + @relation = Table.new(:users) + @attribute1 = @relation[:id] + @attribute2 = @relation[:name] + class ConcreteBinary < Binary + end + end + + describe '#bind' do + before do + @another_relation = @relation.alias + end + + describe 'when both operands are attributes' do + it "manufactures an expression with the attributes bound to the relation" do + ConcreteBinary.new(@attribute1, @attribute2).bind(@another_relation). \ + should == ConcreteBinary.new(@another_relation[@attribute1], @another_relation[@attribute2]) + end + end + + describe 'when an operand is a value' do + it "manufactures an expression with unmodified values" do + ConcreteBinary.new(@attribute1, "asdf").bind(@another_relation). \ + should == ConcreteBinary.new(@attribute1.find_correlate_in(@another_relation), "asdf".find_correlate_in(@another_relation)) + end + end + end + end +end
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