execjs/test/test_runtimes.rb

require "execjs"
require "test/unit"

module TestRuntime
  def test_exec
    assert_nil @runtime.exec("1")
    assert_nil @runtime.exec("return")
    assert_nil @runtime.exec("return null")
    assert_nil @runtime.exec("return function() {}")
    assert_equal 0, @runtime.exec("return 0")
    assert_equal true, @runtime.exec("return true")
    assert_equal [1, 2], @runtime.exec("return [1, 2]")
    assert_equal "hello", @runtime.exec("return 'hello'")
    assert_equal({"a"=>1,"b"=>2}, @runtime.exec("return {a:1,b:2}"))
  end

  def test_eval
    assert_nil @runtime.eval("")
    assert_nil @runtime.eval(" ")
    assert_nil @runtime.eval("null")
    assert_nil @runtime.eval("function() {}")
    assert_equal 0, @runtime.eval("0")
    assert_equal true, @runtime.eval("true")
    assert_equal [1, 2], @runtime.eval("[1, 2]")
    assert_equal "hello", @runtime.eval("'hello'")
    assert_equal({"a"=>1,"b"=>2}, @runtime.eval("{a:1,b:2}"))
  end

  def test_syntax_error
    assert_raise ExecJS::RuntimeError do
      @runtime.exec(")")
    end
  end

  def test_thrown_exception
    assert_raise ExecJS::ProgramError do
      @runtime.exec("throw 'hello'")
    end
  end
end

class TestJSCRuntime < Test::Unit::TestCase
  include TestRuntime

  def setup
    @runtime = ExecJS::Runtimes::JSC
  end
end

class TestNodeRuntime < Test::Unit::TestCase
  include TestRuntime

  def setup
    @runtime = ExecJS::Runtimes::Node
  end
end

class TestSpidermonkeyRuntime < Test::Unit::TestCase
  include TestRuntime

  def setup
    @runtime = ExecJS::Runtimes::Spidermonkey
  end
end

class TestV8Runtime < Test::Unit::TestCase
  include TestRuntime

  def setup
    @runtime = ExecJS::Runtimes::V8
  end
end