1#assert('Kernel.sprintf') do 2#end 3 4assert('String#%') do 5 assert_equal "one=1", "one=%d" % 1 6 assert_equal "1 one", "%d %s" % [ 1, "one" ] 7 assert_equal "123 < 456", "%{num} < %<str>s" % { num: 123, str: "456" } 8 assert_equal 15, ("%b" % (1<<14)).size 9 skip unless Object.const_defined?(:Float) 10 assert_equal "1.0", "%3.1f" % 1.01 11end 12 13assert('String#% with inf') do 14 skip unless Object.const_defined?(:Float) 15 inf = Float::INFINITY 16 17 assert_equal "Inf", "%f" % inf 18 assert_equal "Inf", "%2f" % inf 19 assert_equal "Inf", "%3f" % inf 20 assert_equal " Inf", "%4f" % inf 21 assert_equal " Inf", "%5f" % inf 22 23 assert_equal "+Inf", "%+f" % inf 24 assert_equal "+Inf", "%+2f" % inf 25 assert_equal "+Inf", "%+3f" % inf 26 assert_equal "+Inf", "%+4f" % inf 27 assert_equal " +Inf", "%+5f" % inf 28 29 assert_equal "Inf", "%-f" % inf 30 assert_equal "Inf", "%-2f" % inf 31 assert_equal "Inf", "%-3f" % inf 32 assert_equal "Inf ", "%-4f" % inf 33 assert_equal "Inf ", "%-5f" % inf 34 35 assert_equal " Inf", "% f" % inf 36 assert_equal " Inf", "% 2f" % inf 37 assert_equal " Inf", "% 3f" % inf 38 assert_equal " Inf", "% 4f" % inf 39 assert_equal " Inf", "% 5f" % inf 40end 41 42assert('String#% with nan') do 43 skip unless Object.const_defined?(:Float) 44 nan = Float::NAN 45 46 assert_equal "NaN", "%f" % nan 47 assert_equal "NaN", "%2f" % nan 48 assert_equal "NaN", "%3f" % nan 49 assert_equal " NaN", "%4f" % nan 50 assert_equal " NaN", "%5f" % nan 51 52 assert_equal "+NaN", "%+f" % nan 53 assert_equal "+NaN", "%+2f" % nan 54 assert_equal "+NaN", "%+3f" % nan 55 assert_equal "+NaN", "%+4f" % nan 56 assert_equal " +NaN", "%+5f" % nan 57 58 assert_equal "NaN", "%-f" % nan 59 assert_equal "NaN", "%-2f" % nan 60 assert_equal "NaN", "%-3f" % nan 61 assert_equal "NaN ", "%-4f" % nan 62 assert_equal "NaN ", "%-5f" % nan 63 64 assert_equal " NaN", "% f" % nan 65 assert_equal " NaN", "% 2f" % nan 66 assert_equal " NaN", "% 3f" % nan 67 assert_equal " NaN", "% 4f" % nan 68 assert_equal " NaN", "% 5f" % nan 69end 70 71assert("String#% with invalid chr") do 72 begin 73 class Fixnum 74 alias_method :chr_, :chr if method_defined?(:chr) 75 76 def chr 77 nil 78 end 79 end 80 81 assert_raise TypeError do 82 "%c" % 0x80 83 end 84 ensure 85 class Fixnum 86 if method_defined?(:chr_) 87 alias_method :chr, :chr_ 88 remove_method :chr_ 89 end 90 end 91 end 92end 93 94assert("String#% %b") do 95 assert_equal("..10115", "%0b5" % -5) 96end 97 98assert("String#% %d") do 99 assert_equal(" 10", "%4d" % 10) 100 assert_equal("1000", "%4d" % 1000) 101 assert_equal("10000", "%4d" % 10000) 102end 103 104assert("String#% invalid format") do 105 assert_raise ArgumentError do 106 "%?" % "" 107 end 108end 109 110assert("String#% invalid format shared substring") do 111 fmt = ("x"*30+"%!")[0...-1] 112 assert_equal fmt, sprintf(fmt, "") 113end 114