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require 'java'
describe "java_import" do
it "should explode when trying to import a non-existant Java class" do
expect do
Module.new do
java_import('does.not.Exist')
end
end.to raise_error(NameError, /Java class .?does.not.Exist.? not found/)
end
it "should receive an array with the imported classes" do
mod = Module.new do
@import_1 = java_import()
@import_2 = java_import 'java.util.HashMap'
@import_3 = java_import java.util.Hashtable, Java::java::util::Hashtable, Java::JavaUtil::Hashtable
end
expect(mod.instance_variable_get(:@import_1)).to eq([])
expect(mod.instance_variable_get(:@import_2)).to eq([java.util.HashMap])
expect(mod.instance_variable_get(:@import_3)).to eq([java.util.Hashtable] * 3)
end
it "should import named inner class" do
mod = Module.new do
java_import 'java.nio.file.WatchEvent$Kind'
end
expect(mod::Kind).to be Java::JavaNioFile::WatchEvent::Kind
end
java_import "java_integration.fixtures.InnerClasses"
it "raises error importing lower-case names" do
expect do
Module.new { java_import InnerClasses::lowerInnerClass }
end.to raise_error(NameError, /cannot import Java class .*?InnerClasses\$lowerInnerClass.*?: wrong constant name lowerInnerClass/)
end
it "imports upper-case names successfully" do
mod = nil
expect do
mod = Module.new { java_import InnerClasses::CapsInnerClass }
end.not_to raise_error
expect(mod::CapsInnerClass).to eq(InnerClasses::CapsInnerClass)
end
class Object
java_import 'javax.lang.model.element.Element'
end
module JavaImportSpec
java_import 'javax.lang.model.element.Element'
module Nested
java_import org.w3c.dom.Element
module Nested2
java_import 'org.w3c.dom.Element'
end
end if Element
module NestedAgain
java_import 'javax.lang.model.element.Element'
end
end
it "sets constant into proper scope (when parent has same name)" do
Object.send(:remove_const, :Element)
expect(JavaImportSpec::Element).to be(javax.lang.model.element.Element) # used to fail in JRuby <= 9.4.5
expect(JavaImportSpec::Nested::Element).to be(org.w3c.dom.Element)
expect(JavaImportSpec::Nested::Nested2.constants).to eql [:Element]
expect(JavaImportSpec::NestedAgain.constants).to eql [:Element]
expect(JavaImportSpec::Nested::Nested2::Element).to be(org.w3c.dom.Element)
expect(JavaImportSpec::NestedAgain::Element).to be(javax.lang.model.element.Element)
end
end
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