1 files changed, 54 insertions, 0 deletions
diff --git a/spec/ruby/shared/kernel/equal.rb b/spec/ruby/shared/kernel/equal.rb
new file mode 100644
index 0000000000..0a70aec639
--- /dev/null
+++ b/spec/ruby/shared/kernel/equal.rb
@@ -0,0 +1,54 @@
+# These examples hold for BasicObject#equal?, BasicObject#== and Kernel#eql?
+describe :object_equal, shared: true do
+  it "returns true if other is identical to self" do
+    obj = Object.new
+    obj.__send__(@method, obj).should be_true
+  end
+
+  it "returns false if other is not identical to self" do
+    a = Object.new
+    b = Object.new
+    a.__send__(@method, b).should be_false
+  end
+
+  it "returns true only if self and other are the same object" do
+    o1 = mock('o1')
+    o2 = mock('o2')
+    o1.__send__(@method, o1).should == true
+    o2.__send__(@method, o2).should == true
+    o1.__send__(@method, o2).should == false
+  end
+
+  it "returns true for the same immediate object" do
+    o1 = 1
+    o2 = :hola
+    1.__send__(@method, o1).should == true
+    :hola.__send__(@method, o2).should == true
+  end
+
+  it "returns false for nil and any other object" do
+    o1 = mock('o1')
+    nil.__send__(@method, nil).should == true
+    o1.__send__(@method, nil).should == false
+    nil.__send__(@method, o1).should == false
+  end
+
+  it "returns false for objects of different classes" do
+    :hola.__send__(@method, 1).should == false
+  end
+
+  it "returns true only if self and other are the same boolean" do
+    true.__send__(@method, true).should == true
+    false.__send__(@method, false).should == true
+
+    true.__send__(@method, false).should == false
+    false.__send__(@method, true).should == false
+  end
+
+  it "returns true for integers of initially different ranges" do
+    big42 = (bignum_value * 42 / bignum_value)
+    42.__send__(@method, big42).should == true
+    long42 = (1 << 35) * 42 / (1 << 35)
+    42.__send__(@method, long42).should == true
+  end
+end