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Contents
require File.expand_path(File.join(File.dirname(__FILE__), "helper"))
module Johnson
module Extensions
class DefinePropertyTest < Johnson::TestCase
def setup
super
@runtime.evaluate("x = {}")
end
def test_object_can_define_property
@runtime.evaluate("Object.defineProperty(x, 'answer', 42)")
assert_js_equal(42, "x.answer")
end
def test_object_can_define_unenumerable_property
@runtime.evaluate("Object.defineProperty(x, 'answer', 42)")
@runtime.evaluate <<-JS
y = [];
for(prop in x) if(prop == "answer") y.push(prop)
JS
assert_js("y.length == 0")
end
def test_object_can_define_enumerable_property
@runtime.evaluate("Object.defineProperty(x, 'answer', 42, Object.ITERABLE)")
@runtime.evaluate <<-JS
y = [];
for(prop in x) if(prop == "answer") y.push(prop)
JS
assert_js("y.length == 1")
end
def test_object_can_define_read_only_property
@runtime.evaluate("Object.defineProperty(x, 'answer', 42, Object.READ_ONLY)")
@runtime.evaluate("x.answer = 47")
assert_js_equal(42, "x.answer")
end
def test_object_can_define_non_deletable_property
@runtime.evaluate("Object.defineProperty(x, 'answer', 42, Object.NON_DELETABLE)")
@runtime.evaluate("r = (delete x.answer)")
assert_js_equal(false, "r")
assert_js_equal(42, "x.answer")
end
def test_object_can_define_mixed_property
@runtime.evaluate("Object.defineProperty(x, 'answer', 42, Object.NON_DELETABLE | Object.READ_ONLY)")
@runtime.evaluate("r = (delete x.answer)")
@runtime.evaluate("x.answer = 47")
assert_js_equal(false, "r")
assert_js_equal(42, "x.answer")
end
end
end
end
Version data entries
10 entries across 10 versions & 4 rubygems