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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.*?: bad 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