diff options
Diffstat (limited to 'spec/ruby/library/bigdecimal/sqrt_spec.rb')
| -rw-r--r-- | spec/ruby/library/bigdecimal/sqrt_spec.rb | 217 |
1 files changed, 110 insertions, 107 deletions
diff --git a/spec/ruby/library/bigdecimal/sqrt_spec.rb b/spec/ruby/library/bigdecimal/sqrt_spec.rb index d149003b9f..daf95dbfe9 100644 --- a/spec/ruby/library/bigdecimal/sqrt_spec.rb +++ b/spec/ruby/library/bigdecimal/sqrt_spec.rb @@ -1,112 +1,115 @@ require_relative '../../spec_helper' -require_relative 'fixtures/classes' -require 'bigdecimal' - -describe "BigDecimal#sqrt" do - before :each do - @one = BigDecimal("1") - @zero = BigDecimal("0") - @zero_pos = BigDecimal("+0") - @zero_neg = BigDecimal("-0") - @two = BigDecimal("2.0") - @three = BigDecimal("3.0") - @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") - end - - it "returns square root of 2 with desired precision" do - string = "1.41421356237309504880168872420969807856967187537694807317667973799073247846210703885038753432764157" - (1..99).each { |idx| - @two.sqrt(idx).should be_close(BigDecimal(string), BigDecimal("1E-#{idx-1}")) - } - end - - it "returns square root of 3 with desired precision" do - sqrt_3 = "1.732050807568877293527446341505872366942805253810380628055806979451933016908800037081146186757248575" - (1..99).each { |idx| - @three.sqrt(idx).should be_close(BigDecimal(sqrt_3), BigDecimal("1E-#{idx-1}")) - } - end - - it "returns square root of 121 with desired precision" do - BigDecimal('121').sqrt(5).should be_close(11, 0.00001) - end - - it "returns square root of 0.9E-99999 with desired precision" do - @frac_2.sqrt(1).to_s.should =~ /\A0\.3E-49999\z/i - end - - it "raises ArgumentError when no argument is given" do - -> { - @one.sqrt - }.should raise_error(ArgumentError) - end - - it "raises ArgumentError if a negative number is given" do - -> { - @one.sqrt(-1) - }.should raise_error(ArgumentError) - end - - it "raises ArgumentError if 2 arguments are given" do - -> { - @one.sqrt(1, 1) - }.should raise_error(ArgumentError) - end - it "raises TypeError if nil is given" do - -> { - @one.sqrt(nil) - }.should raise_error(TypeError) - end +ruby_version_is ""..."3.4" do + require_relative 'fixtures/classes' + require 'bigdecimal' + + describe "BigDecimal#sqrt" do + before :each do + @one = BigDecimal("1") + @zero = BigDecimal("0") + @zero_pos = BigDecimal("+0") + @zero_neg = BigDecimal("-0") + @two = BigDecimal("2.0") + @three = BigDecimal("3.0") + @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") + end + + it "returns square root of 2 with desired precision" do + string = "1.41421356237309504880168872420969807856967187537694807317667973799073247846210703885038753432764157" + (1..99).each { |idx| + @two.sqrt(idx).should be_close(BigDecimal(string), BigDecimal("1E-#{idx-1}")) + } + end + + it "returns square root of 3 with desired precision" do + sqrt_3 = "1.732050807568877293527446341505872366942805253810380628055806979451933016908800037081146186757248575" + (1..99).each { |idx| + @three.sqrt(idx).should be_close(BigDecimal(sqrt_3), BigDecimal("1E-#{idx-1}")) + } + end + + it "returns square root of 121 with desired precision" do + BigDecimal('121').sqrt(5).should be_close(11, 0.00001) + end + + it "returns square root of 0.9E-99999 with desired precision" do + @frac_2.sqrt(1).to_s.should =~ /\A0\.3E-49999\z/i + end + + it "raises ArgumentError when no argument is given" do + -> { + @one.sqrt + }.should raise_error(ArgumentError) + end + + it "raises ArgumentError if a negative number is given" do + -> { + @one.sqrt(-1) + }.should raise_error(ArgumentError) + end + + it "raises ArgumentError if 2 arguments are given" do + -> { + @one.sqrt(1, 1) + }.should raise_error(ArgumentError) + end + + it "raises TypeError if nil is given" do + -> { + @one.sqrt(nil) + }.should raise_error(TypeError) + end + + it "raises TypeError if a string is given" do + -> { + @one.sqrt("stuff") + }.should raise_error(TypeError) + end + + it "raises TypeError if a plain Object is given" do + -> { + @one.sqrt(Object.new) + }.should raise_error(TypeError) + end + + it "returns 1 if precision is 0 or 1" do + @one.sqrt(1).should == 1 + @one.sqrt(0).should == 1 + end + + it "raises FloatDomainError on negative values" do + -> { + BigDecimal('-1').sqrt(10) + }.should raise_error(FloatDomainError) + end + + it "returns positive infinity for infinity" do + @infinity.sqrt(1).should == @infinity + end + + it "raises FloatDomainError for negative infinity" do + -> { + @infinity_minus.sqrt(1) + }.should raise_error(FloatDomainError) + end + + it "raises FloatDomainError for NaN" do + -> { + @nan.sqrt(1) + }.should raise_error(FloatDomainError) + end + + it "returns 0 for 0, +0.0 and -0.0" do + @zero.sqrt(1).should == 0 + @zero_pos.sqrt(1).should == 0 + @zero_neg.sqrt(1).should == 0 + end - it "raises TypeError if a string is given" do - -> { - @one.sqrt("stuff") - }.should raise_error(TypeError) end - - it "raises TypeError if a plain Object is given" do - -> { - @one.sqrt(Object.new) - }.should raise_error(TypeError) - end - - it "returns 1 if precision is 0 or 1" do - @one.sqrt(1).should == 1 - @one.sqrt(0).should == 1 - end - - it "raises FloatDomainError on negative values" do - -> { - BigDecimal('-1').sqrt(10) - }.should raise_error(FloatDomainError) - end - - it "returns positive infinity for infinity" do - @infinity.sqrt(1).should == @infinity - end - - it "raises FloatDomainError for negative infinity" do - -> { - @infinity_minus.sqrt(1) - }.should raise_error(FloatDomainError) - end - - it "raises FloatDomainError for NaN" do - -> { - @nan.sqrt(1) - }.should raise_error(FloatDomainError) - end - - it "returns 0 for 0, +0.0 and -0.0" do - @zero.sqrt(1).should == 0 - @zero_pos.sqrt(1).should == 0 - @zero_neg.sqrt(1).should == 0 - end - end |