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Diffstat (limited to 'spec/rubyspec/shared/rational/floor.rb')
-rw-r--r-- | spec/rubyspec/shared/rational/floor.rb | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/spec/rubyspec/shared/rational/floor.rb b/spec/rubyspec/shared/rational/floor.rb new file mode 100644 index 0000000000..5106e0b4d9 --- /dev/null +++ b/spec/rubyspec/shared/rational/floor.rb @@ -0,0 +1,45 @@ +require File.expand_path('../../../spec_helper', __FILE__) + +describe :rational_floor, shared: true do + before do + @rational = Rational(2200, 7) + end + + describe "with no arguments (precision = 0)" do + it "returns an integer" do + @rational.floor.should be_kind_of(Integer) + end + + it "returns the truncated value toward negative infinity" do + @rational.floor.should == 314 + Rational(1, 2).floor.should == 0 + Rational(-1, 2).floor.should == -1 + end + end + + describe "with a precision < 0" do + it "returns an integer" do + @rational.floor(-2).should be_kind_of(Integer) + @rational.floor(-1).should be_kind_of(Integer) + end + + it "moves the truncation point n decimal places left" do + @rational.floor(-3).should == 0 + @rational.floor(-2).should == 300 + @rational.floor(-1).should == 310 + end + end + + describe "with a precision > 0" do + it "returns a Rational" do + @rational.floor(1).should be_kind_of(Rational) + @rational.floor(2).should be_kind_of(Rational) + end + + it "moves the truncation point n decimal places right" do + @rational.floor(1).should == Rational(1571, 5) + @rational.floor(2).should == Rational(7857, 25) + @rational.floor(3).should == Rational(62857, 200) + end + end +end |