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Edit File: test_rake_task_arguments.rb

require File.expand_path('../helper', __FILE__)

######################################################################
class TestRakeTaskArguments < Rake::TestCase
  def teardown
    ENV.delete('rev')
    ENV.delete('VER')
  end

def test_empty_arg_list_is_empty
    ta = Rake::TaskArguments.new([], [])
    assert_equal({}, ta.to_hash)
  end

def test_multiple_values_in_args
    ta = Rake::TaskArguments.new([:a, :b, :c], [:one, :two, :three])
    assert_equal({:a => :one, :b => :two, :c => :three}, ta.to_hash)
  end

def test_to_s
    ta = Rake::TaskArguments.new([:a, :b, :c], [1, 2, 3])
    assert_equal ta.to_hash.inspect, ta.to_s
    assert_equal ta.to_hash.inspect, ta.inspect
  end

def test_enumerable_behavior
    ta = Rake::TaskArguments.new([:a, :b, :c], [1, 2 ,3])
    assert_equal [10, 20, 30], ta.collect { |k,v| v * 10 }.sort
  end

def test_named_args
    ta = Rake::TaskArguments.new(["aa", "bb"], [1, 2])
    assert_equal 1, ta.aa
    assert_equal 1, ta[:aa]
    assert_equal 1, ta["aa"]
    assert_equal 2, ta.bb
    assert_nil ta.cc
  end

def test_args_knows_its_names
    ta = Rake::TaskArguments.new(["aa", "bb"], [1, 2])
    assert_equal ["aa", "bb"], ta.names
  end

def test_extra_names_are_nil
    ta = Rake::TaskArguments.new(["aa", "bb", "cc"], [1, 2])
    assert_nil ta.cc
  end

def test_args_do_not_reference_env_values
    ta = Rake::TaskArguments.new(["aa"], [1])
    ENV['rev'] = "1.2"
    ENV['VER'] = "2.3"
    assert_nil ta.rev
    assert_nil ta.ver
  end

def test_creating_new_argument_scopes
    parent = Rake::TaskArguments.new(['p'], [1])
    child = parent.new_scope(['c', 'p'])
    assert_equal({:p=>1}, child.to_hash)
    assert_equal 1, child.p
    assert_equal 1, child["p"]
    assert_equal 1, child[:p]
    assert_nil child.c
  end

def test_child_hides_parent_arg_names
    parent = Rake::TaskArguments.new(['aa'], [1])
    child = Rake::TaskArguments.new(['aa'], [2], parent)
    assert_equal 2, child.aa
  end

def test_default_arguments_values_can_be_merged
    ta = Rake::TaskArguments.new(["aa", "bb"], [nil, "original_val"])
    ta.with_defaults({ :aa => 'default_val' })
    assert_equal 'default_val', ta[:aa]
    assert_equal 'original_val', ta[:bb]
  end

def test_default_arguments_that_dont_match_names_are_ignored
    ta = Rake::TaskArguments.new(["aa", "bb"], [nil, "original_val"])
    ta.with_defaults({ "cc" => "default_val" })
    assert_nil ta[:cc]
  end
end

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