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singleton_spec.rb
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42 lines (35 loc) · 1.39 KB
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require File.dirname(__FILE__) + "/../spec_helper"
java_import "java_integration.fixtures.CachedInJava"
describe "A singleton method added to a Java object from Ruby" do
before(:all) { CachedInJava.__persistent__ = true }
it "caches the proxy when directly constructed" do
object = CachedInJava.new
def object.answer; 42; end
expect(object.answer).to eq(42)
expect(CachedInJava.last_instance).to eq(object)
expect(CachedInJava.last_instance.answer).to eq(42)
end
it "caches the proxy when retrieved from a Java instance method" do
object = CachedInJava.new.new_instance_from_instance
def object.answer; 42; end
expect(object.answer).to eq(42)
expect(CachedInJava.last_instance).to eq(object)
expect(CachedInJava.last_instance.answer).to eq(42)
end
it "caches the proxy when retrieved from a Java static method" do
object = CachedInJava.new_instance_from_static
def object.answer; 42; end
expect(object.answer).to eq(42)
expect(CachedInJava.last_instance).to eq(object)
expect(CachedInJava.last_instance.answer).to eq(42)
end
end
describe "A class which has not been set persistent" do
it "warns when turned into a singleton object" do
warns = with_warn_captured {
class << java.lang.Object.new; end
}
warns.first.first.should =~ /singleton on non-persistent Java type/
java.lang.Object.__persistent__ = false
end
end