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require 'java'
describe "A Java object's java_send method" do
before :each do
@list = java.util.ArrayList.new
@integer = java.lang.Integer.new(1)
end
it "works with name only for no-arg methods" do
@list.java_send(:toString).should == "[]"
java.lang.System.java_send(:currentTimeMillis).class.should == Fixnum
end
it "works with name plus empty arg list for no-arg methods" do
@list.java_send(:toString, []).should == "[]"
java.lang.System.java_send(:currentTimeMillis, []).class.should == Fixnum
end
it "works with a signature" do
@list.java_send :add, [Java::int, java.lang.Object], 0, 'foo'
@list.to_s.should == "[foo]"
java_home = java.lang.System.java_send(:getProperty, [java.lang.String], 'java.home')
java_home.should == java.lang.System.getProperty('java.home')
end
it "raises NameError if the method can't be found" do
lambda do
@list.java_send :foobar
end.should raise_error(NameError)
lambda do
@list.java_send :add, [Java::long, java.lang.Object], 0, 'foo'
end.should raise_error(NameError)
lambda do
java.lang.System.java_send :foobar
end.should raise_error(NameError)
lambda do
java.lang.System.java_send :getProperty, [Java::long, Java::long], 0, 0
end.should raise_error(NameError)
end
it "raises ArgumentError if type count doesn't match arg count" do
lambda do
@list.java_send :add, [Java::int, java.lang.Object], 0, 'foo', 'bar'
end.should raise_error(ArgumentError)
lambda do
java.lang.System.java_send :getProperty, [java.lang.String], "foo", "bar"
end.should raise_error(ArgumentError)
end
end
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