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Diffstat (limited to 'spec/ruby/core/float/divide_spec.rb')
-rw-r--r-- | spec/ruby/core/float/divide_spec.rb | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/spec/ruby/core/float/divide_spec.rb b/spec/ruby/core/float/divide_spec.rb new file mode 100644 index 0000000000..0acd7b20b4 --- /dev/null +++ b/spec/ruby/core/float/divide_spec.rb @@ -0,0 +1,36 @@ +require File.expand_path('../../../spec_helper', __FILE__) +require File.expand_path('../fixtures/coerce.rb', __FILE__) + +describe "Float#/" do + it "returns self divided by other" do + (5.75 / -2).should be_close(-2.875,TOLERANCE) + (451.0 / 9.3).should be_close(48.494623655914,TOLERANCE) + (91.1 / -0xffffffff).should be_close(-2.12108716418061e-08, TOLERANCE) + end + + it "properly coerces objects" do + (5.0 / FloatSpecs::CanCoerce.new(5)).should be_close(0, TOLERANCE) + end + + it "returns +Infinity when dividing non-zero by zero of the same sign" do + (1.0 / 0.0).should be_positive_infinity + (-1.0 / -0.0).should be_positive_infinity + end + + it "returns -Infinity when dividing non-zero by zero of opposite sign" do + (-1.0 / 0.0).should be_negative_infinity + (1.0 / -0.0).should be_negative_infinity + end + + it "returns NaN when dividing zero by zero" do + (0.0 / 0.0).should be_nan + (-0.0 / 0.0).should be_nan + (0.0 / -0.0).should be_nan + (-0.0 / -0.0).should be_nan + end + + it "raises a TypeError when given a non-Numeric" do + lambda { 13.0 / "10" }.should raise_error(TypeError) + lambda { 13.0 / :symbol }.should raise_error(TypeError) + end +end |