diff options
Diffstat (limited to 'spec/rubyspec/core/math/log2_spec.rb')
| -rw-r--r-- | spec/rubyspec/core/math/log2_spec.rb | 41 |
1 files changed, 0 insertions, 41 deletions
diff --git a/spec/rubyspec/core/math/log2_spec.rb b/spec/rubyspec/core/math/log2_spec.rb deleted file mode 100644 index 387f05ca9f..0000000000 --- a/spec/rubyspec/core/math/log2_spec.rb +++ /dev/null @@ -1,41 +0,0 @@ -require File.expand_path('../../../spec_helper', __FILE__) -require File.expand_path('../fixtures/classes', __FILE__) - -describe "Math.log2" do - it "returns a float" do - Math.log2(5.79).should be_close(2.53356334821451, TOLERANCE) - end - - it "returns the natural logarithm of the argument" do - Math.log2(1.1).should be_close(0.137503523749935, TOLERANCE) - Math.log2(3.14).should be_close(1.6507645591169, TOLERANCE) - Math.log2((2**101+45677544234809571)).should be_close(101.00000000000003, TOLERANCE) - - Math.log2((2**10001+45677544234809571)).should == 10001.0 - Math.log2((2**301+45677544234809571)).should == 301.0 - end - - it "raises an Errno::EDOM if the argument is less than 0" do - lambda { Math.log2(-1e-15) }.should raise_error( Math::DomainError) - end - - it "raises a TypeError if the argument cannot be coerced with Float()" do - lambda { Math.log2("test") }.should raise_error(TypeError) - end - - it "raises a TypeError if passed a numerical argument as a string" do - lambda { Math.log2("1.0") }.should raise_error(TypeError) - end - - it "returns NaN given NaN" do - Math.log2(nan_value).nan?.should be_true - end - - it "raises a TypeError if the argument is nil" do - lambda { Math.log2(nil) }.should raise_error(TypeError) - end - - it "accepts any argument that can be coerced with Float()" do - Math.log2(MathSpecs::Float.new).should be_close(0.0, TOLERANCE) - end -end |
