1 files changed, 26 insertions, 0 deletions
diff --git a/spec/ruby/library/bigdecimal/coerce_spec.rb b/spec/ruby/library/bigdecimal/coerce_spec.rb
new file mode 100644
index 0000000000..1c63ddf2bc
--- /dev/null
+++ b/spec/ruby/library/bigdecimal/coerce_spec.rb
@@ -0,0 +1,26 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+require 'bigdecimal'
+
+describe "BigDecimal#coerce" do
+
+  it "returns [other, self] both as BigDecimal" do
+    one = BigDecimal("1.0")
+    five_point_28 = BigDecimal("5.28")
+    zero_minus = BigDecimal("-0.0")
+    some_value = 32434234234234234234
+
+    BigDecimal("1.2").coerce(1).should == [one, BigDecimal("1.2")]
+    five_point_28.coerce(1.0).should == [one, BigDecimal("5.28")]
+    one.coerce(one).should == [one, one]
+    one.coerce(2.5).should == [2.5, one]
+    BigDecimal("1").coerce(3.14).should == [3.14, one]
+    a, b = zero_minus.coerce(some_value)
+    a.should == BigDecimal(some_value.to_s)
+    b.should == zero_minus
+    a, b = one.coerce(some_value)
+    a.should == BigDecimal(some_value.to_s)
+    b.to_f.should be_close(1.0, TOLERANCE) # can we take out the to_f once BigDecimal#- is implemented?
+    b.should == one
+  end
+
+end