1 files changed, 72 insertions, 0 deletions
diff --git a/spec/ruby/core/integer/bit_xor_spec.rb b/spec/ruby/core/integer/bit_xor_spec.rb
new file mode 100644
index 0000000000..f9e2fd74cb
--- /dev/null
+++ b/spec/ruby/core/integer/bit_xor_spec.rb
@@ -0,0 +1,72 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+
+describe "Integer#^" do
+  context "fixnum" do
+    it "returns self bitwise EXCLUSIVE OR other" do
+      (3 ^ 5).should == 6
+      (-2 ^ -255).should == 255
+      (5 ^ bignum_value + 0xffff_ffff).should == 0x8000_0000_ffff_fffa
+    end
+
+    it "returns self bitwise EXCLUSIVE OR a bignum" do
+      (-1 ^ 2**64).should == -18446744073709551617
+    end
+
+    it "raises a TypeError when passed a Float" do
+      lambda { (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 xor")
+      obj.should_not_receive(:to_int)
+
+      lambda { 3 ^ obj }.should raise_error(TypeError)
+    end
+  end
+
+  context "bignum" do
+    before :each do
+      @bignum = bignum_value(18)
+    end
+
+    it "returns self bitwise EXCLUSIVE OR other" do
+      (@bignum ^ 2).should == 9223372036854775824
+      (@bignum ^ @bignum).should == 0
+      (@bignum ^ 14).should == 9223372036854775836
+    end
+
+    it "returns self bitwise EXCLUSIVE OR other when one operand is negative" do
+      (@bignum ^ -0x40000000000000000).should == -64563604257983430638
+      (@bignum ^ -@bignum).should == -4
+      (@bignum ^ -0x8000000000000000).should == -18446744073709551598
+    end
+
+    it "returns self bitwise EXCLUSIVE OR other when both operands are negative" do
+      (-@bignum ^ -0x40000000000000000).should == 64563604257983430638
+      (-@bignum ^ -@bignum).should == 0
+      (-@bignum ^ -0x4000000000000000).should == 13835058055282163694
+    end
+
+    it "returns self bitwise EXCLUSIVE OR other when all bits are 1 and other value is negative" do
+      (9903520314283042199192993791 ^ -1).should == -9903520314283042199192993792
+      (784637716923335095479473677900958302012794430558004314111 ^ -1).should ==
+        -784637716923335095479473677900958302012794430558004314112
+    end
+
+    it "raises a TypeError when passed a Float" do
+      not_supported_on :opal do
+        lambda {
+          bignum_value ^ bignum_value(0xffff).to_f
+        }.should raise_error(TypeError)
+      end
+      lambda { @bignum ^ 14.5 }.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 xor")
+      obj.should_not_receive(:to_int)
+
+      lambda { @bignum ^ obj }.should raise_error(TypeError)
+    end
+  end
+end