require 'test/unit'
require 'rant/rantlib'


class TestLightTask < Test::Unit::TestCase
    def setup
	@app = Rant::RantApp.new %w()
    end
    def teardown
    end
    # shortcut for Rant::LightTask.new
    def lt(*args, &block)
	Rant::LightTask.new(*[@app, args].flatten, &block)
    end
    def test_init
	t = lt :tinit
	assert(t.needed?,
	    "needed? should be true after creation without " +
	    "`needed' block")
	assert(!t.done?)
	assert_equal(t.name, "tinit",
	    "task name should always be a string, despite creation with symbol")
    end
    def test_with_blocks
	run = false
	nr = false
	t = lt :with_blocks do |a|
	    a.needed {
		nr = true
	    }
	    a.act do |l|
		assert_equal(l, t,
		    "act block should get the LightTask as argument")
		run = true
	    end
	end
	assert(t.needed?,
	    "needed block returns true")
	assert(nr,
	    "`needed' block should have been run")
	assert(t.invoke,
	    "invoke should return true because task was needed")
	assert(run,
	    "task should have been run")
	assert(!t.needed?,
	    "task shouldn't be needed? after first run")
    end
end