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# $Id: test_scanfblocks.rb 25189 2009-10-02 12:04:37Z akr $
#
# scanf for Ruby
#
# Some not very comprehensive tests of block behavior.
require 'test/unit'
require 'scanf'
require 'tmpdir'
class TestScanfBlock < Test::Unit::TestCase
def setup
@str = <<-EOS
Beethoven 1770
Bach 1685
Handel 1685
Scarlatti 1685
Brahms 1833
EOS
end
alias set_up setup
def test_str1
res = @str.scanf("%s%d") { |name, year| "#{name} was born in #{year}." }
assert_equal(res,
[ "Beethoven was born in 1770.",
"Bach was born in 1685.",
"Handel was born in 1685.",
"Scarlatti was born in 1685.",
"Brahms was born in 1833." ])
end
def test_str2
names = @str.scanf("%s%d") { |name, year| name.upcase }
assert_equal(names, ["BEETHOVEN", "BACH", "HANDEL", "SCARLATTI", "BRAHMS"])
end
def test_str3
assert_equal("".scanf("%d%f%s") {}, [])
end
def test_str4
assert_equal("abc".scanf("%d%f%s") {}, [])
end
def test_str5
assert_equal("abc".scanf("") {}, [])
end
def test_io1
fn = "#{Dir.tmpdir}/iotest.dat.#{$$}"
File.open(fn, "w") { |fh| fh.puts(@str) }
fh = File.open(fn, "rb")
res = fh.scanf("%s%d") { |name, year| "#{name} was born in #{year}." }
assert_equal(
[ "Beethoven was born in 1770.",
"Bach was born in 1685.",
"Handel was born in 1685.",
"Scarlatti was born in 1685.",
"Brahms was born in 1833." ],res)
fh.close
ensure
File.delete(fn)
end
def test_io2
fn = "#{Dir.tmpdir}/iotest.dat.#{$$}"
File.open(fn, "w").close
fh = File.open(fn,"rb")
assert_equal(fh.scanf("") {}, [])
fh.seek(0)
assert_equal(fh.scanf("%d%f%s") {}, [])
fh.close
ensure
File.delete(fn)
end
end
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