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# These examples hold for both BasicObject#__id__ and Object#object_id.
describe :basic_object_id, :shared => true do
it "returns an integer" do
o1 = @object.new
o1.__send__(@method).should be_kind_of(Integer)
end
it "returns the same value on all calls to id for a given object" do
o1 = @object.new
o1.__send__(@method).should == o1.__send__(@method)
end
it "returns different values for different objects" do
o1 = @object.new
o2 = @object.new
o1.__send__(@method).should_not == o2.__send__(@method)
end
end
# These examples hold for Object#object_id, or for specific subclasses.
describe :object_id, :shared => true do
it "returns the same value for two Fixnums with the same value" do
o1 = 1
o2 = 1
o1.send(@method).should == o2.send(@method)
end
it "returns the same value for two Symbol literals" do
o1 = :hello
o2 = :hello
o1.send(@method).should == o2.send(@method)
end
it "returns the same value for two true literals" do
o1 = true
o2 = true
o1.send(@method).should == o2.send(@method)
end
it "returns the same value for two false literals" do
o1 = false
o2 = false
o1.send(@method).should == o2.send(@method)
end
it "returns the same value for two nil literals" do
o1 = nil
o2 = nil
o1.send(@method).should == o2.send(@method)
end
it "returns a different value for two Bignum literals" do
o1 = 2e100.to_i
o2 = 2e100.to_i
o1.send(@method).should_not == o2.send(@method)
end
not_compliant_on :macruby do
it "returns a different value for two Float literals" do
o1 = -0.0 # -0.0 is not flonum
o2 = -0.0
o1.send(@method).should_not == o2.send(@method)
end
end
it "returns a different value for two String literals" do
o1 = "hello"
o2 = "hello"
o1.send(@method).should_not == o2.send(@method)
end
it "returns a different value for an object and its dup" do
o1 = mock("object")
o2 = o1.dup
o1.send(@method).should_not == o2.send(@method)
end
it "returns a different value for two numbers near the 32 bit Fixnum limit" do
o1 = -1
o2 = 2 ** 30 - 1
o1.send(@method).should_not == o2.send(@method)
end
it "returns a different value for two numbers near the 64 bit Fixnum limit" do
o1 = -1
o2 = 2 ** 62 - 1
o1.send(@method).should_not == o2.send(@method)
end
end
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