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Diffstat (limited to 'spec/ruby/core/fixnum/fdiv_spec.rb')
-rw-r--r-- | spec/ruby/core/fixnum/fdiv_spec.rb | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/spec/ruby/core/fixnum/fdiv_spec.rb b/spec/ruby/core/fixnum/fdiv_spec.rb new file mode 100644 index 0000000000..bb5f09c333 --- /dev/null +++ b/spec/ruby/core/fixnum/fdiv_spec.rb @@ -0,0 +1,49 @@ +require File.expand_path('../../../spec_helper', __FILE__) + +describe "Fixnum#fdiv" do + it "performs floating-point division between self and a Fixnum" do + 8.fdiv(7).should be_close(1.14285714285714, TOLERANCE) + end + + it "performs floating-point division between self and a Bignum" do + 8.fdiv(bignum_value).should be_close(8.673617379884035e-19, TOLERANCE) + end + + it "performs floating-point division between self and a Float" do + 8.fdiv(9.0).should be_close(0.888888888888889, TOLERANCE) + end + + it "returns NaN when the argument is NaN" do + -1.fdiv(nan_value).nan?.should be_true + 1.fdiv(nan_value).nan?.should be_true + end + + it "returns Infinity when the argument is 0" do + 1.fdiv(0).infinite?.should == 1 + end + + it "returns -Infinity when the argument is 0 and self is negative" do + -1.fdiv(0).infinite?.should == -1 + end + + it "returns Infinity when the argument is 0.0" do + 1.fdiv(0.0).infinite?.should == 1 + end + + it "returns -Infinity when the argument is 0.0 and self is negative" do + -1.fdiv(0.0).infinite?.should == -1 + end + + it "raises a TypeError when argument isn't numeric" do + lambda { 1.fdiv(mock('non-numeric')) }.should raise_error(TypeError) + end + + it "raises an ArgumentError when passed multiple arguments" do + lambda { 1.fdiv(6,0.2) }.should raise_error(ArgumentError) + end + + it "follows the coercion protocol" do + (obj = mock('10')).should_receive(:coerce).with(1).and_return([1, 10]) + 1.fdiv(obj).should == 0.1 + end +end |