1 files changed, 39 insertions, 0 deletions
diff --git a/spec/ruby/shared/rational/equal_value.rb b/spec/ruby/shared/rational/equal_value.rb
new file mode 100644
index 0000000000..be4d5af598
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+++ b/spec/ruby/shared/rational/equal_value.rb
@@ -0,0 +1,39 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+
+describe :rational_equal_value_rat, shared: true do
+  it "returns true if self has the same numerator and denominator as the passed argument" do
+    (Rational(3, 4) == Rational(3, 4)).should be_true
+    (Rational(-3, -4) == Rational(3, 4)).should be_true
+    (Rational(-4, 5) == Rational(4, -5)).should be_true
+
+    (Rational(bignum_value, 3) == Rational(bignum_value, 3)).should be_true
+    (Rational(-bignum_value, 3) == Rational(bignum_value, -3)).should be_true
+  end
+end
+
+describe :rational_equal_value_int, shared: true do
+  it "returns true if self has the passed argument as numerator and a denominator of 1" do
+    # Rational(x, y) reduces x and y automatically
+    (Rational(4, 2) == 2).should be_true
+    (Rational(-4, 2) == -2).should be_true
+    (Rational(4, -2) == -2).should be_true
+  end
+end
+
+describe :rational_equal_value_float, shared: true do
+  it "converts self to a Float and compares it with the passed argument" do
+    (Rational(3, 4) == 0.75).should be_true
+    (Rational(4, 2) == 2.0).should be_true
+    (Rational(-4, 2) == -2.0).should be_true
+    (Rational(4, -2) == -2.0).should be_true
+  end
+end
+
+describe :rational_equal_value, shared: true do
+  it "returns the result of calling #== with self on the passed argument" do
+    obj = mock("Object")
+    obj.should_receive(:==).and_return(:result)
+
+    (Rational(3, 4) == obj).should_not be_false
+  end
+end