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require 'test/unit'
require_relative 'envutil'
class TestVariable < Test::Unit::TestCase
class Gods
@@rule = "Uranus"
def ruler0
@@rule
end
def self.ruler1 # <= per method definition style
@@rule
end
class << self # <= multiple method definition style
def ruler2
@@rule
end
end
end
module Olympians
@@rule ="Zeus"
def ruler3
@@rule
end
end
class Titans < Gods
@@rule = "Cronus" # modifies @@rule in Gods
include Olympians
def ruler4
@@rule
end
end
def test_variable
assert_instance_of(Fixnum, $$)
# read-only variable
assert_raise(NameError) do
$$ = 5
end
assert_normal_exit("$*=0; $*", "[ruby-dev:36698]")
foobar = "foobar"
$_ = foobar
assert_equal(foobar, $_)
assert_equal("Cronus", Gods.new.ruler0)
assert_equal("Cronus", Gods.ruler1)
assert_equal("Cronus", Gods.ruler2)
assert_equal("Cronus", Titans.ruler1)
assert_equal("Cronus", Titans.ruler2)
atlas = Titans.new
assert_equal("Cronus", atlas.ruler0)
assert_equal("Zeus", atlas.ruler3)
assert_equal("Cronus", atlas.ruler4)
assert_nothing_raised do
class << Gods
defined?(@@rule) && @@rule
end
end
end
def test_local_variables
lvar = 1
assert_instance_of(Symbol, local_variables[0], "[ruby-dev:34008]")
end
def test_local_variables2
x = 1
proc do |y|
assert_equal([:x, :y], local_variables.sort)
end.call
end
def test_local_variables3
x = 1
proc do |y|
1.times do |z|
assert_equal([:x, :y, :z], local_variables.sort)
end
end.call
end
def test_shadowing_local_variables
bug9486 = '[ruby-core:60501] [Bug #9486]'
x = tap {|x| break local_variables}
assert_equal([:x, :bug9486, :x], x)
end
def test_shadowing_block_local_variables
bug9486 = '[ruby-core:60501] [Bug #9486]'
x = tap {|;x| break local_variables}
assert_equal([:x, :bug9486, :x], x)
end
def local_variables_of(bind)
this_should_not_be_in_bind = 2
bind.local_variables
end
def test_binding_local_variables
feature8773 = '[Feature #8773]'
assert_equal([:feature8773], local_variables_of(binding), feature8773)
end
def test_global_variable_0
assert_in_out_err(["-e", "$0='t'*1000;print $0"], "", /\At+\z/, [])
end
def test_global_variable_poped
assert_nothing_raised { eval("$foo; 1") }
end
def test_constant_poped
assert_nothing_raised { eval("TestVariable::Gods; 1") }
end
end
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