aboutsummaryrefslogtreecommitdiffstats
path: root/spec/ruby/library/bigdecimal/shared/quo.rb
diff options
context:
space:
mode:
Diffstat (limited to 'spec/ruby/library/bigdecimal/shared/quo.rb')
-rw-r--r--spec/ruby/library/bigdecimal/shared/quo.rb59
1 files changed, 59 insertions, 0 deletions
diff --git a/spec/ruby/library/bigdecimal/shared/quo.rb b/spec/ruby/library/bigdecimal/shared/quo.rb
new file mode 100644
index 0000000000..cb51c10d71
--- /dev/null
+++ b/spec/ruby/library/bigdecimal/shared/quo.rb
@@ -0,0 +1,59 @@
+require 'bigdecimal'
+
+describe :bigdecimal_quo, shared: true do
+ before :each do
+ @one = BigDecimal("1")
+ @zero = BigDecimal("0")
+ @zero_plus = BigDecimal("+0")
+ @zero_minus = BigDecimal("-0")
+ @two = BigDecimal("2")
+ @three = BigDecimal("3")
+ @eleven = BigDecimal("11")
+ @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")
+ end
+
+ it "returns a / b" do
+ @two.send(@method, @one, *@object).should == @two
+ @one.send(@method, @two, *@object).should == BigDecimal("0.5")
+ @eleven.send(@method, @three, *@object).should be_close(@three + (@two / @three), TOLERANCE)
+ @one.send(@method, @one_minus, *@object).should == @one_minus
+ @one_minus.send(@method, @one_minus, *@object).should == @one
+ @frac_2.send(@method, @frac_1, *@object).should == BigDecimal("0.9")
+ @frac_1.send(@method, @frac_1, *@object).should == @one
+ @one.send(@method, BigDecimal('-2E5555'), *@object).should == BigDecimal('-0.5E-5555')
+ @one.send(@method, BigDecimal('2E-5555'), *@object).should == BigDecimal('0.5E5555')
+ end
+
+ it "returns 0 if divided by Infinity" do
+ @zero.send(@method, @infinity, *@object).should == 0
+ @frac_2.send(@method, @infinity, *@object).should == 0
+ end
+
+ it "returns (+|-) Infinity if (+|-) Infinity divided by one" do
+ @infinity_minus.send(@method, @one, *@object).should == @infinity_minus
+ @infinity.send(@method, @one, *@object).should == @infinity
+ @infinity_minus.send(@method, @one_minus, *@object).should == @infinity
+ end
+
+ it "returns NaN if Infinity / ((+|-) Infinity)" do
+ @infinity.send(@method, @infinity_minus, *@object).nan?.should == true
+ @infinity_minus.send(@method, @infinity, *@object).nan?.should == true
+ end
+
+ it "returns (+|-) Infinity if divided by zero" do
+ @one.send(@method, @zero, *@object).should == @infinity
+ @one.send(@method, @zero_plus, *@object).should == @infinity
+ @one.send(@method, @zero_minus, *@object).should == @infinity_minus
+ end
+
+ it "returns NaN if zero is divided by zero" do
+ @zero.send(@method, @zero, *@object).nan?.should == true
+ @zero_minus.send(@method, @zero_plus, *@object).nan?.should == true
+ @zero_plus.send(@method, @zero_minus, *@object).nan?.should == true
+ end
+end