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Contents
require File.expand_path(File.dirname(__FILE__)) + '/spec_helper.rb'
describe MPFR, "when converted to string" do
before(:all) do
MPFR.set_default_prec(200)
@args = GenerateNumber.float(10).map{ |a| MPFR.new(a.to_s) }
end
it "should be to_s" do
@args.each do |a|
a.to_s.should match(/^(-|)[1-9]\.[0-9]+e[-+][0-9]+$/)
end
end
it "should be formatted string \"#<MPFR:%lx,'%.Re',%d>\" for inspect" do
@args.each do |a|
a.inspect.should match(/^#<MPFR:.+,'(-|)[1-9]\.[0-9]+e[-+][0-9]+',\d+>$/)
end
end
it "should be formatted string by to_strf" do
@args.each do |a|
a.to_strf("%.Re").should eql a.to_s
a.to_strf("%.RE").should match(/^(-|)[1-9]\.[0-9]+E[-+][0-9]+$/)
a.to_strf("%.Rf").should match(/^(-|)[0-9]*\.[0-9]*$/)
end
format = ["14.6", ".8", "10.10", "+10.4", "-10.4", "+012.2", "-012.2", "3.0"]
@args.each do |a|
MPFR.set_default_prec(100)
for i in 0...1000
a = rand(100) + rand
check_to_s_e(a, format)
check_to_s_e(-a, format)
# check_to_s_f(a, format)
# check_to_s_f(-a, format)
end
end
end
end
def check_to_s_e(float, format_ary)
a = MPFR.new(float)
format_ary.each do |format|
sprintf("%#{format}e", float).should == a.to_strf("%#{format}Re")
sprintf("%#{format}E", float).should == a.to_strf("%#{format}RE")
end
end
# Probably MPFR bug makes this test be failure. Need further investigations. (Tue Aug 18 10:43:51 2009)
def check_to_s_f(float, format_ary)
a = MPFR.new(float)
format_ary.each do |format|
sprintf("%#{format}f", float).should == a.to_strf("%#{format}Rf")
end
end
Version data entries
7 entries across 7 versions & 1 rubygems