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require_relative '../../spec_helper'
describe "Integer#|" do
context "fixnum" do
it "returns self bitwise OR other" do
(1 | 0).should == 1
(5 | 4).should == 5
(5 | 6).should == 7
(248 | 4096).should == 4344
(0xffff | bignum_value + 0xf0f0).should == 0x1_0000_0000_0000_ffff
end
it "returns self bitwise OR other when one operand is negative" do
((1 << 33) | -1).should == -1
(-1 | (1 << 33)).should == -1
((-(1<<33)-1) | 5).should == -8589934593
(5 | (-(1<<33)-1)).should == -8589934593
end
it "returns self bitwise OR other when both operands are negative" do
(-5 | -1).should == -1
(-3 | -4).should == -3
(-12 | -13).should == -9
(-13 | -12).should == -9
end
it "returns self bitwise OR a bignum" do
(-1 | 2**64).should == -1
end
it "coerces the rhs and calls #coerce" do
obj = mock("fixnum bit or")
obj.should_receive(:coerce).with(6).and_return([6, 3])
(6 | obj).should == 7
end
it "raises a TypeError when passed a Float" do
-> { (3 | 3.4) }.should raise_error(TypeError)
end
it "raises a TypeError and does not call #to_int when defined on an object" do
obj = mock("integer bit or")
obj.should_not_receive(:to_int)
-> { 3 | obj }.should raise_error(TypeError)
end
end
context "bignum" do
before :each do
@bignum = bignum_value(11)
end
it "returns self bitwise OR other" do
(@bignum | 2).should == 18446744073709551627
(@bignum | 9).should == 18446744073709551627
(@bignum | bignum_value).should == 18446744073709551627
end
it "returns self bitwise OR other when one operand is negative" do
(@bignum | -0x40000000000000000).should == -55340232221128654837
(@bignum | -@bignum).should == -1
(@bignum | -0x8000000000000000).should == -9223372036854775797
end
it "returns self bitwise OR other when both operands are negative" do
(-@bignum | -0x4000000000000005).should == -1
(-@bignum | -@bignum).should == -18446744073709551627
(-@bignum | -0x4000000000000000).should == -11
end
it "raises a TypeError when passed a Float" do
not_supported_on :opal do
-> {
bignum_value | bignum_value(0xffff).to_f
}.should raise_error(TypeError)
end
-> { @bignum | 9.9 }.should raise_error(TypeError)
end
it "raises a TypeError and does not call #to_int when defined on an object" do
obj = mock("bignum bit or")
obj.should_not_receive(:to_int)
-> { @bignum | obj }.should raise_error(TypeError)
end
end
end
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