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Diffstat (limited to 'spec/ruby/shared/rational/round.rb')
| -rw-r--r-- | spec/ruby/shared/rational/round.rb | 106 |
1 files changed, 0 insertions, 106 deletions
diff --git a/spec/ruby/shared/rational/round.rb b/spec/ruby/shared/rational/round.rb deleted file mode 100644 index 5b159ee3e6..0000000000 --- a/spec/ruby/shared/rational/round.rb +++ /dev/null @@ -1,106 +0,0 @@ -require_relative '../../spec_helper' - -describe :rational_round, shared: true do - before do - @rational = Rational(2200, 7) - end - - describe "with no arguments (precision = 0)" do - it "returns an integer" do - @rational.round.should be_kind_of(Integer) - Rational(0, 1).round(0).should be_kind_of(Integer) - Rational(124, 1).round(0).should be_kind_of(Integer) - end - - it "returns the truncated value toward the nearest integer" do - @rational.round.should == 314 - Rational(0, 1).round(0).should == 0 - Rational(2, 1).round(0).should == 2 - end - - it "returns the rounded value toward the nearest integer" do - Rational(1, 2).round.should == 1 - Rational(-1, 2).round.should == -1 - Rational(3, 2).round.should == 2 - Rational(-3, 2).round.should == -2 - Rational(5, 2).round.should == 3 - Rational(-5, 2).round.should == -3 - end - end - - describe "with a precision < 0" do - it "returns an integer" do - @rational.round(-2).should be_kind_of(Integer) - @rational.round(-1).should be_kind_of(Integer) - Rational(0, 1).round(-1).should be_kind_of(Integer) - Rational(2, 1).round(-1).should be_kind_of(Integer) - end - - it "moves the truncation point n decimal places left" do - @rational.round(-3).should == 0 - @rational.round(-2).should == 300 - @rational.round(-1).should == 310 - end - end - - describe "with a precision > 0" do - it "returns a Rational" do - @rational.round(1).should be_kind_of(Rational) - @rational.round(2).should be_kind_of(Rational) - # Guard against the Mathn library - guard -> { !defined?(Math.rsqrt) } do - Rational(0, 1).round(1).should be_kind_of(Rational) - Rational(2, 1).round(1).should be_kind_of(Rational) - end - end - - it "moves the truncation point n decimal places right" do - @rational.round(1).should == Rational(3143, 10) - @rational.round(2).should == Rational(31429, 100) - @rational.round(3).should == Rational(157143, 500) - Rational(0, 1).round(1).should == Rational(0, 1) - Rational(2, 1).round(1).should == Rational(2, 1) - end - - it "doesn't alter the value if the precision is too great" do - Rational(3, 2).round(10).should == Rational(3, 2).round(20) - end - - # #6605 - it "doesn't fail when rounding to an absurdly large positive precision" do - Rational(3, 2).round(2_097_171).should == Rational(3, 2) - end - end - - describe "with half option" do - it "returns an Integer when precision is not passed" do - Rational(10, 4).round(half: nil).should == 3 - Rational(10, 4).round(half: :up).should == 3 - Rational(10, 4).round(half: :down).should == 2 - Rational(10, 4).round(half: :even).should == 2 - Rational(-10, 4).round(half: nil).should == -3 - Rational(-10, 4).round(half: :up).should == -3 - Rational(-10, 4).round(half: :down).should == -2 - Rational(-10, 4).round(half: :even).should == -2 - end - - it "returns a Rational when the precision is greater than 0" do - Rational(25, 100).round(1, half: nil).should == Rational(3, 10) - Rational(25, 100).round(1, half: :up).should == Rational(3, 10) - Rational(25, 100).round(1, half: :down).should == Rational(1, 5) - Rational(25, 100).round(1, half: :even).should == Rational(1, 5) - Rational(35, 100).round(1, half: nil).should == Rational(2, 5) - Rational(35, 100).round(1, half: :up).should == Rational(2, 5) - Rational(35, 100).round(1, half: :down).should == Rational(3, 10) - Rational(35, 100).round(1, half: :even).should == Rational(2, 5) - Rational(-25, 100).round(1, half: nil).should == Rational(-3, 10) - Rational(-25, 100).round(1, half: :up).should == Rational(-3, 10) - Rational(-25, 100).round(1, half: :down).should == Rational(-1, 5) - Rational(-25, 100).round(1, half: :even).should == Rational(-1, 5) - end - - it "raise for a non-existent round mode" do - -> { Rational(10, 4).round(half: :nonsense) }.should raise_error(ArgumentError, "invalid rounding mode: nonsense") - end - end -end |
