2018-fumichan-thesis / form-sample / vendor / bundle / ruby / 2.5.0 / gems / backports-3.11.4 / frozen_old_spec / tags / 1.8.7 / core / math / log2_spec.rb

fails:Math.log2 raises an Errno::EDOM if the argument is less than 0
fails:Math.log2 raises an TypeError if the argument cannot be coerced with Float()
fails:Math.log2 raises an TypeError if passed a numerical argument as a string
fails:Math.log2 returns NaN given NaN
fails:Math.log2 raises a TypeError if the argument cannot be coerced with Float()
fails:Math.log2 raises a TypeError if passed a numerical argument as a string