64 lines
1.3 KiB
Elixir
64 lines
1.3 KiB
Elixir
Code.require_file "../../test_helper", __FILE__
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defmodule Kernel.ImportOnlyTest do
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use ExUnit.Case
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import Erlang.lists, only: [flatten: 1]
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test :import_erlang do
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assert_equal [1,2,3], flatten [1,[2],3]
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end
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end
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defmodule Kernel.ImportAllTest do
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use ExUnit.Case
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import Erlang.lists
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test :import_erlang do
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assert_equal [1,2,3], flatten [1,[2],3]
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end
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end
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defmodule Kernel.ImportExceptTest do
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use ExUnit.Case
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import Erlang.lists, except: [each: 1]
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test :import_erlang do
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assert_equal [1,2,3], flatten [1,[2],3]
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end
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end
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defmodule Kernel.MessedBitwise do
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defmacro bnot(x), do: x
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defmacro bor(x, _), do: x
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end
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defmodule Kernel.ImportMacrosTest do
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use ExUnit.Case
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import :macros, Bitwise
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test :import_true do
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assert_equal 1, band(1, 1)
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assert_equal 1, bor(0, 1)
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assert_equal -1, bnot(0)
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end
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test :function_import_with_only do
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import :macros, Bitwise, except: [bnot: 1]
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import :macros, Kernel.MessedBitwise, only: [bnot: 1]
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assert_equal 0, bnot(0)
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assert_equal 1, bor(0, 1)
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end
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# This test is asserting that the requires done
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# inside the function do not affect outer ones.
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test :import_true_not_affected do
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assert_equal 1 , band(1, 1)
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assert_equal 1 , bor(0, 1)
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assert_equal -1, bnot(0)
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end
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end
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