TerribleDev/ruby_koans
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Merge branch 'more_jruby' into m

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* more_jruby:
  [5553333] Updated java interop on to_java method.
  Added cruise task
  java coercion
This commit is contained in:
Jim Weirich
2010-12-23 11:46:29 -05:00
parent 297cfde6a3 ccfa664b48
commit ab59dc4791
3 changed files with 83 additions and 0 deletions
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13
src/about_java_interop.rb
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@@ -95,6 +95,19 @@ class AboutJavaInterop < EdgeCase::Koan
assert_equal __(false), java_array.toString.is_a?(java.lang.String)
end
def test_some_ruby_objects_can_be_coerced_to_java
assert_equal __(Java::JavaLang::String), "ruby string".to_java.class
assert_equal __(Java::JavaLang::Long), 1.to_java.class
assert_equal __(Java::JavaLang::Double), 9.32.to_java.class
assert_equal __(Java::JavaLang::Boolean), false.to_java.class
end
def test_some_ruby_objects_can_NOT_be_coerced_to_java
assert_equal __(false), [].to_java.class == Java::JavaUtil::ArrayList
assert_equal __(false), {}.to_java.class == Java::JavaUtil::HashMap
assert_equal __(false), Object.new.to_java.class == Java::JavaLang::Object
end
def test_java_collections_are_enumerable
java_array = java.util.ArrayList.new
java_array << "one" << "two" << "three"