1 files changed, 40 insertions, 0 deletions
diff --git a/spec/ruby/core/float/equal_value_spec.rb b/spec/ruby/core/float/equal_value_spec.rb
new file mode 100644
index 0000000000..37d0e162d3
--- /dev/null
+++ b/spec/ruby/core/float/equal_value_spec.rb
@@ -0,0 +1,40 @@
+require_relative '../../spec_helper'
+
+describe "Float#==" do
+  it "returns true if self has the same value as other" do
+    (1.0 == 1).should == true
+    (2.71828 == 1.428).should == false
+    (-4.2 == 4.2).should == false
+  end
+
+  it "calls 'other == self' if coercion fails" do
+    x = mock('other')
+    def x.==(other)
+      2.0 == other
+    end
+
+    (1.0 == x).should == false
+    (2.0 == x).should == true
+  end
+
+  it "returns false if one side is NaN" do
+    [1.0, 42, bignum_value].each { |n|
+      (nan_value == n).should == false
+      (n == nan_value).should == false
+    }
+  end
+
+  it "handles positive infinity" do
+    [1.0, 42, bignum_value].each { |n|
+      (infinity_value == n).should == false
+      (n == infinity_value).should == false
+    }
+  end
+
+  it "handles negative infinity" do
+    [1.0, 42, bignum_value].each { |n|
+      ((-infinity_value) == n).should == false
+      (n == -infinity_value).should == false
+    }
+  end
+end