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assert('sprintf invalid') do
assert_raise(ArgumentError) { sprintf('%1$*d', 3) }
assert_raise(ArgumentError) { sprintf('%1$.*d', 3) }
end
assert('String#%') do
assert_equal "one=1", "one=%d" % 1
assert_equal "1 one", "%d %s" % [ 1, "one" ]
assert_equal "123 < 456", "%{num} < %<str>s" % { num: 123, str: "456" }
assert_equal 15, ("%b" % (1<<14)).size
skip unless Object.const_defined?(:Float)
assert_equal "1.0", "%3.1f" % 1.01
assert_equal " 12345.12", "% 4.2f" % 12345.1234
assert_equal "12345.12", "%-4.2f" % 12345.12345
assert_equal "+12345.12", "%+4.2f" % 12345.1234
assert_equal "12345.12", "%04.2f" % 12345.12345
assert_equal "0012345.12", "%010.2f" % 12345.1234
end
assert('String#% with inf') do
skip unless Object.const_defined?(:Float)
inf = Float::INFINITY
assert_equal "Inf", "%f" % inf
assert_equal "Inf", "%2f" % inf
assert_equal "Inf", "%3f" % inf
assert_equal " Inf", "%4f" % inf
assert_equal " Inf", "%5f" % inf
assert_equal "+Inf", "%+f" % inf
assert_equal "+Inf", "%+2f" % inf
assert_equal "+Inf", "%+3f" % inf
assert_equal "+Inf", "%+4f" % inf
assert_equal " +Inf", "%+5f" % inf
assert_equal "Inf", "%-f" % inf
assert_equal "Inf", "%-2f" % inf
assert_equal "Inf", "%-3f" % inf
assert_equal "Inf ", "%-4f" % inf
assert_equal "Inf ", "%-5f" % inf
assert_equal " Inf", "% f" % inf
assert_equal " Inf", "% 2f" % inf
assert_equal " Inf", "% 3f" % inf
assert_equal " Inf", "% 4f" % inf
assert_equal " Inf", "% 5f" % inf
end
assert('String#% with nan') do
skip unless Object.const_defined?(:Float)
nan = Float::NAN
assert_equal "NaN", "%f" % nan
assert_equal "NaN", "%2f" % nan
assert_equal "NaN", "%3f" % nan
assert_equal " NaN", "%4f" % nan
assert_equal " NaN", "%5f" % nan
assert_equal "+NaN", "%+f" % nan
assert_equal "+NaN", "%+2f" % nan
assert_equal "+NaN", "%+3f" % nan
assert_equal "+NaN", "%+4f" % nan
assert_equal " +NaN", "%+5f" % nan
assert_equal "NaN", "%-f" % nan
assert_equal "NaN", "%-2f" % nan
assert_equal "NaN", "%-3f" % nan
assert_equal "NaN ", "%-4f" % nan
assert_equal "NaN ", "%-5f" % nan
assert_equal " NaN", "% f" % nan
assert_equal " NaN", "% 2f" % nan
assert_equal " NaN", "% 3f" % nan
assert_equal " NaN", "% 4f" % nan
assert_equal " NaN", "% 5f" % nan
end
assert("String#% %b") do
assert_equal("..10115", "%0b5" % -5)
end
assert("String#% %d") do
assert_equal(" 10", "%4d" % 10)
assert_equal("1000", "%4d" % 1000)
assert_equal("10000", "%4d" % 10000)
end
assert("String#% invalid format") do
assert_raise ArgumentError do
"%?" % ""
end
end
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