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require 'test/unit'
class TestSourceLayout < Test::Unit::TestCase
# ------------------------------------------------------------
def test_semicolon_separated_expressions
assert_equal(2, eval("1; 2"))
assert_equal('1; 2', "1; 2")
assert_equal(99, eval("def fred() 99; end; fred"))
end
# ------------------------------------------------------------
def lcbb_test(*args)
return args.length
end
def test_line_continuation_by_backslash
assert_equal(3, 1 \
+ \
2)
assert_equal("hello", "h\
e\
l\
l\
o")
assert_equal("h e l l o", "h\
e\
l\
l\
o")
assert_equal("h\ne\nl\nl\no", "h
e
l
l
o")
a = lcbb_test \
"arg?"
assert_equal(1, a) # would be '0' if arg not passed
end
# ------------------------------------------------------------
def test_line_continuation_in_mid_expression
assert_equal(3, 1 +
2)
assert_equal(3, 1 + # spurious comment
2)
assert_equal(3, (1 +
2))
assert_equal(2, lcbb_test(1,
2))
assert_equal(2, lcbb_test(
1,
2
))
end
# ------------------------------------------------------------
def test_comments
assert_equal 4, 1 + # 2
3
# check that comment isn't continued by '\'
assert_equal 4, 1 + # 2\
3
end
# ------------------------------------------------------------
SAMPLE1 = <<'SAMPLE1'
a\
=begin
skip this
=end
= 99
puts(a + 1)
SAMPLE1
SAMPLE2 = <<'SAMPLE2'
a\
=begin label
=begin
skip this
=end
= 99
puts(a + 1)
SAMPLE2
SAMPLE3 = <<'SAMPLE3'
=begin
skip this
=end
SAMPLE3
def rubyRun(str)
result = nil
code = nil
File.open("_prog.rb", "w") { |f| f.puts str }
begin
result = nil
IO.popen("#$interpreter _prog.rb 2>_err_tmp") do |p|
result = p.read
end
code = $?
ensure
File.delete("_prog.rb")
File.delete("_err_tmp")
end
[ code, result ]
end
def test_equals_begin
assert_equal([0, "100\n"], rubyRun(SAMPLE1))
assert_equal([0, "100\n"], rubyRun(SAMPLE2))
assert(rubyRun(SAMPLE3)[0] != 0)
end
# ------------------------------------------------------------
SAMPLE4 = <<-SAMPLE4
END { puts 1 }
BEGIN { puts 2 }
END { puts 3 }
BEGIN { puts 4 }
SAMPLE4
SAMPLE5 = <<-SAMPLE5
END { puts 5 }
require "_prog1.rb"
BEGIN { puts 8 }
SAMPLE5
def test_BEGIN_END
assert_equal([0, "2\n4\n3\n1\n"], rubyRun(SAMPLE4))
# confirm that require brings things in at runtime
File.open("_prog1.rb", "w") do |f|
f.puts "BEGIN { puts 6 }"
f.puts "END { puts 7 }"
end
begin
assert_equal([0, "8\n6\n7\n5\n"], rubyRun(SAMPLE5))
ensure
File.delete("_prog1.rb")
end
end
# ------------------------------------------------------------
SAMPLE6 = <<-SAMPLE6
puts DATA.gets
__END__
wombat
SAMPLE6
SAMPLE7 = <<-SAMPLE7
puts DATA.gets
__END__
wombat
SAMPLE7
SAMPLE8 = <<-SAMPLE8
puts DATA.gets
__END__ of data
wombat
SAMPLE8
def test___END__
assert_equal([ 0, "wombat\n"], rubyRun(SAMPLE6))
assert_equal(256, rubyRun(SAMPLE7)[0])
assert_equal(256, rubyRun(SAMPLE8)[0])
end
end
|
