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authoreregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2017-09-20 20:18:52 +0000
committereregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2017-09-20 20:18:52 +0000
commit1d15d5f08032acf1b7bceacbb450d617ff6e0931 (patch)
treea3785a79899302bc149e4a6e72f624ac27dc1f10 /spec/ruby/library/bigdecimal/uminus_spec.rb
parent75bfc6440d595bf339007f4fb280fd4d743e89c1 (diff)
downloadruby-1d15d5f08032acf1b7bceacbb450d617ff6e0931.tar.gz
Move spec/rubyspec to spec/ruby for consistency
* Other ruby implementations use the spec/ruby directory. [Misc #13792] [ruby-core:82287] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59979 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'spec/ruby/library/bigdecimal/uminus_spec.rb')
-rw-r--r--spec/ruby/library/bigdecimal/uminus_spec.rb58
1 files changed, 58 insertions, 0 deletions
diff --git a/spec/ruby/library/bigdecimal/uminus_spec.rb b/spec/ruby/library/bigdecimal/uminus_spec.rb
new file mode 100644
index 0000000000..901f9f59ce
--- /dev/null
+++ b/spec/ruby/library/bigdecimal/uminus_spec.rb
@@ -0,0 +1,58 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+require 'bigdecimal'
+
+describe "BigDecimal#-@" do
+ before :each do
+ @one = BigDecimal("1")
+ @zero = BigDecimal("0")
+ @zero_pos = BigDecimal("+0")
+ @zero_neg = BigDecimal("-0")
+ @nan = BigDecimal("NaN")
+ @infinity = BigDecimal("Infinity")
+ @infinity_minus = BigDecimal("-Infinity")
+ @one_minus = BigDecimal("-1")
+ @frac_1 = BigDecimal("1E-99999")
+ @frac_2 = BigDecimal("0.9E-99999")
+ @big = BigDecimal("333E99999")
+ @big_neg = BigDecimal("-333E99999")
+ @values = [@one, @zero, @zero_pos, @zero_neg, @infinity,
+ @infinity_minus, @one_minus, @frac_1, @frac_2, @big, @big_neg]
+ end
+
+ it "negates self" do
+ @one.send(:-@).should == @one_minus
+ @one_minus.send(:-@).should == @one
+ @frac_1.send(:-@).should == BigDecimal("-1E-99999")
+ @frac_2.send(:-@).should == BigDecimal("-0.9E-99999")
+ @big.send(:-@).should == @big_neg
+ @big_neg.send(:-@).should == @big
+ BigDecimal("2.221").send(:-@).should == BigDecimal("-2.221")
+ BigDecimal("2E10000").send(:-@).should == BigDecimal("-2E10000")
+ some_number = BigDecimal("2455999221.5512")
+ some_number_neg = BigDecimal("-2455999221.5512")
+ some_number.send(:-@).should == some_number_neg
+ (-BigDecimal("-5.5")).should == BigDecimal("5.5")
+ another_number = BigDecimal("-8.551551551551551551")
+ another_number_pos = BigDecimal("8.551551551551551551")
+ another_number.send(:-@).should == another_number_pos
+ @values.each do |val|
+ (val.send(:-@).send(:-@)).should == val
+ end
+ end
+
+ it "properly handles special values" do
+ @infinity.send(:-@).should == @infinity_minus
+ @infinity_minus.send(:-@).should == @infinity
+ @infinity.send(:-@).infinite?.should == -1
+ @infinity_minus.send(:-@).infinite?.should == 1
+
+ @zero.send(:-@).should == @zero
+ @zero.send(:-@).sign.should == -1
+ @zero_pos.send(:-@).should == @zero
+ @zero_pos.send(:-@).sign.should == -1
+ @zero_neg.send(:-@).should == @zero
+ @zero_neg.send(:-@).sign.should == 1
+
+ @nan.send(:-@).nan?.should == true
+ end
+end