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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
commitc530d0faf064d561bf7755c55a34921572d343ef (patch)
treea3785a79899302bc149e4a6e72f624ac27dc1f10 /spec/ruby/library/bigdecimal/mode_spec.rb
parent77eb1c94ee74f11ebf347f0539d3949b2cf4e2b3 (diff)
downloadruby-c530d0faf064d561bf7755c55a34921572d343ef.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/mode_spec.rb')
-rw-r--r--spec/ruby/library/bigdecimal/mode_spec.rb36
1 files changed, 36 insertions, 0 deletions
diff --git a/spec/ruby/library/bigdecimal/mode_spec.rb b/spec/ruby/library/bigdecimal/mode_spec.rb
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index 0000000000..d88ac61aaf
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+++ b/spec/ruby/library/bigdecimal/mode_spec.rb
@@ -0,0 +1,36 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+require 'bigdecimal'
+
+describe "BigDecimal.mode" do
+ #the default value of BigDecimal exception constants is false
+ after :each do
+ BigDecimal.mode(BigDecimal::EXCEPTION_NaN, false)
+ BigDecimal.mode(BigDecimal::EXCEPTION_INFINITY, false)
+ BigDecimal.mode(BigDecimal::EXCEPTION_UNDERFLOW, false)
+ BigDecimal.mode(BigDecimal::EXCEPTION_OVERFLOW, false)
+ BigDecimal.mode(BigDecimal::EXCEPTION_ZERODIVIDE, false)
+ end
+
+ it "returns the appropriate value and continue the computation if the flag is false" do
+ BigDecimal("NaN").add(BigDecimal("1"),0).nan?.should == true
+ BigDecimal("0").add(BigDecimal("Infinity"),0).should == BigDecimal("Infinity")
+ BigDecimal("1").quo(BigDecimal("0")).should == BigDecimal("Infinity")
+ end
+
+ it "returns Infinity when too big" do
+ BigDecimal("1E11111111111111111111").should == BigDecimal("Infinity")
+ (BigDecimal("1E1000000000000000000")**10).should == BigDecimal("Infinity")
+ end
+
+ it "raise an exception if the flag is true" do
+ BigDecimal.mode(BigDecimal::EXCEPTION_NaN, true)
+ lambda { BigDecimal("NaN").add(BigDecimal("1"),0) }.should raise_error(FloatDomainError)
+ BigDecimal.mode(BigDecimal::EXCEPTION_INFINITY, true)
+ lambda { BigDecimal("0").add(BigDecimal("Infinity"),0) }.should raise_error(FloatDomainError)
+ BigDecimal.mode(BigDecimal::EXCEPTION_ZERODIVIDE, true)
+ lambda { BigDecimal("1").quo(BigDecimal("0")) }.should raise_error(FloatDomainError)
+ BigDecimal.mode(BigDecimal::EXCEPTION_OVERFLOW, true)
+ lambda { BigDecimal("1E11111111111111111111") }.should raise_error(FloatDomainError)
+ lambda { (BigDecimal("1E1000000000000000000")**10) }.should raise_error(FloatDomainError)
+ end
+end