diff options
Diffstat (limited to 'spec/rubyspec/core/math/log_spec.rb')
| -rw-r--r-- | spec/rubyspec/core/math/log_spec.rb | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/spec/rubyspec/core/math/log_spec.rb b/spec/rubyspec/core/math/log_spec.rb deleted file mode 100644 index 9bcccb55e2..0000000000 --- a/spec/rubyspec/core/math/log_spec.rb +++ /dev/null @@ -1,59 +0,0 @@ -require File.expand_path('../../../spec_helper', __FILE__) -require File.expand_path('../fixtures/classes', __FILE__) - -# The natural logarithm, having base Math::E -describe "Math.log" do - it "returns a float" do - Math.log(1).should be_kind_of(Float) - end - - it "returns the natural logarithm of the argument" do - Math.log(0.0001).should be_close(-9.21034037197618, TOLERANCE) - Math.log(0.000000000001e-15).should be_close(-62.1697975108392, TOLERANCE) - Math.log(1).should be_close(0.0, TOLERANCE) - Math.log(10).should be_close( 2.30258509299405, TOLERANCE) - Math.log(10e15).should be_close(36.8413614879047, TOLERANCE) - end - - conflicts_with :Complex do - it "raises an Errno::EDOM if the argument is less than 0" do - lambda { Math.log(-1e-15) }.should raise_error(Errno::EDOM) - end - end - - it "raises a TypeError if the argument cannot be coerced with Float()" do - lambda { Math.log("test") }.should raise_error(TypeError) - end - - it "raises a TypeError for numerical values passed as string" do - lambda { Math.log("10") }.should raise_error(TypeError) - end - - it "accepts a second argument for the base" do - Math.log(9, 3).should be_close(2, TOLERANCE) - Math.log(8, 1.4142135623730951).should be_close(6, TOLERANCE) - end - - it "raises a TypeError when the numerical base cannot be coerced to a float" do - lambda { Math.log(10, "2") }.should raise_error(TypeError) - lambda { Math.log(10, nil) }.should raise_error(TypeError) - end - - it "returns NaN given NaN" do - Math.log(nan_value).nan?.should be_true - end - - it "raises a TypeError if the argument is nil" do - lambda { Math.log(nil) }.should raise_error(TypeError) - end - - it "accepts any argument that can be coerced with Float()" do - Math.log(MathSpecs::Float.new).should be_close(0.0, TOLERANCE) - end -end - -describe "Math#log" do - it "is accessible as a private instance method" do - IncludesMath.new.send(:log, 5.21).should be_close(1.65057985576528, TOLERANCE) - end -end |
