diff options
Diffstat (limited to 'spec/ruby/core/comparable/lte_spec.rb')
-rw-r--r-- | spec/ruby/core/comparable/lte_spec.rb | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/spec/ruby/core/comparable/lte_spec.rb b/spec/ruby/core/comparable/lte_spec.rb new file mode 100644 index 0000000000..96ed38ecd5 --- /dev/null +++ b/spec/ruby/core/comparable/lte_spec.rb @@ -0,0 +1,46 @@ +require File.expand_path('../../../spec_helper', __FILE__) +require File.expand_path('../fixtures/classes', __FILE__) + +describe "Comparable#<=" do + it "calls #<=> on self with other and returns true if #<=> returns 0 or any Integer less than 0" do + a = ComparableSpecs::Weird.new(0) + b = ComparableSpecs::Weird.new(20) + + a.should_receive(:<=>).any_number_of_times.and_return(0) + (a <= b).should == true + + a.should_receive(:<=>).any_number_of_times.and_return(0.0) + (a <= b).should == true + + a.should_receive(:<=>).any_number_of_times.and_return(-1) + (a <= b).should == true + + a.should_receive(:<=>).any_number_of_times.and_return(-0.1) + (a <= b).should == true + + a.should_receive(:<=>).any_number_of_times.and_return(-10000000) + (a <= b).should == true + end + + it "returns false if calling #<=> on self returns any Integer greater than 0" do + a = ComparableSpecs::Weird.new(0) + b = ComparableSpecs::Weird.new(10) + + a.should_receive(:<=>).any_number_of_times.and_return(0.1) + (a <= b).should == false + + a.should_receive(:<=>).any_number_of_times.and_return(1.0) + (a <= b).should == false + + a.should_receive(:<=>).any_number_of_times.and_return(10000000) + (a <= b).should == false + end + + it "raises an ArgumentError if calling #<=> on self returns nil" do + a = ComparableSpecs::Weird.new(0) + b = ComparableSpecs::Weird.new(20) + + a.should_receive(:<=>).any_number_of_times.and_return(nil) + lambda { (a <= b) }.should raise_error(ArgumentError) + end +end |