414 lines
13 KiB
Elixir
414 lines
13 KiB
Elixir
Code.require_file "../test_helper", __FILE__
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defmodule EnumTest.Common do
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use ExUnit.Case
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test :times_with_arity_0 do
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Process.put(:times_with_arity, nil)
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assert Enum.times(0, fn do: Process.put(:times_with_arity, :ok)) == 0
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assert Process.get(:times_with_arity) == nil
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assert Enum.times(3, fn do: Process.put(:times_with_arity, :ok)) == 3
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assert Process.get(:times_with_arity) == :ok
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after:
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Process.delete(:times_with_arity)
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end
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test :times_with_arity_1 do
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assert Enum.times(5, fn(x, do: Process.put(:times_with_arity, x))) == 5
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assert Process.get(:times_with_arity) == 5
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after:
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Process.delete(:times_with_arity)
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end
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test :times_with_arity_2 do
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assert Enum.times(5, 0, fn(acc, x) -> acc + x end) == 15
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end
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end
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defmodule EnumTest.List do
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use ExUnit.Case
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test :all? do
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assert Enum.all?([2,4,6], fn(x, do: rem(x, 2) == 0))
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refute Enum.all?([2,3,4], fn(x, do: rem(x, 2) == 0))
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assert Enum.all?([2,4,6])
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refute Enum.all?([2,nil,4])
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assert Enum.all?([])
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end
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test :any? do
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refute Enum.any?([2,4,6], fn(x, do: rem(x, 2) == 1))
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assert Enum.any?([2,3,4], fn(x, do: rem(x, 2) == 1))
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refute Enum.any?([false,false,false])
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assert Enum.any?([false,true,false])
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refute Enum.any?([])
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end
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test :drop do
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assert Enum.drop([1,2,3], 0) == [1,2,3]
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assert Enum.drop([1,2,3], 1) == [2,3]
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assert Enum.drop([1,2,3], 2) == [3]
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assert Enum.drop([1,2,3], 3) == []
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assert Enum.drop([1,2,3], 4) == []
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assert Enum.drop([], 3) == []
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end
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test :drop_while do
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assert Enum.drop_while([1,2,3,4,3,2,1], fn(x, do: x <= 3)) == [4,3,2,1]
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assert Enum.drop_while([1,2,3], fn(_, do: false)) == [1,2,3]
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assert Enum.drop_while([1,2,3], fn(x, do: x <= 3)) == []
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assert Enum.drop_while([], fn(_, do: false)) == []
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end
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test :find do
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assert Enum.find([2,4,6], fn(x, do: rem(x, 2) == 1)) == nil
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assert Enum.find([2,4,6], 0, fn(x, do: rem(x, 2) == 1)) == 0
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assert Enum.find([2,3,4], fn(x, do: rem(x, 2) == 1)) == 3
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end
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test :find_value do
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assert Enum.find_value([2,4,6], fn(x, do: rem(x, 2) == 1)) == nil
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assert Enum.find_value([2,4,6], 0, fn(x, do: rem(x, 2) == 1)) == 0
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assert Enum.find_value([2,3,4], fn(x, do: rem(x, 2) == 1))
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end
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test :empty? do
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assert Enum.empty?([])
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refute Enum.empty?([1,2,3])
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end
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test :each do
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assert Enum.each([], fn(x, do: x)) == []
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assert Enum.each([1,2,3], fn(x, do: Process.put(:enum_test_each, x * 2))) == [1,2,3]
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assert Process.get(:enum_test_each) == 6
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after:
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Process.delete(:enum_test_each)
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end
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test :to_list do
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assert Enum.to_list([1,2,3]) == [1,2,3]
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end
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test :filter do
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assert Enum.filter([1,2,3], fn(x, do: rem(x, 2) == 0)) == [2]
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assert Enum.filter([2,4,6], fn(x, do: rem(x, 2) == 0)) == [2,4,6]
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end
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test :filter_with_match do
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assert Enum.filter([1,2,3], match?(1, &1)) == [1]
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assert Enum.filter([1,2,3], match?(x when x < 3, &1)) == [1,2]
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assert Enum.filter([1,2,3], match?(_, &1)) == [1,2,3]
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end
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test :filter_map do
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assert Enum.filter_map([1,2,3], fn(x, do: rem(x, 2) == 0), &1 * 2) == [4]
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assert Enum.filter_map([2,4,6], fn(x, do: rem(x, 2) == 0), &1 * 2) == [4,8,12]
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end
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test :reduce do
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assert Enum.reduce([], 1, fn(x, acc, do: x + acc)) == 1
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assert Enum.reduce([1,2,3], 1, fn(x, acc, do: x + acc)) == 7
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end
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test :join_with_bin do
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assert Enum.join([], " = ") == ""
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assert Enum.join([1,2,3], " = ") == "1 = 2 = 3"
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assert Enum.join([1,"2",3], " = ") == "1 = 2 = 3"
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assert Enum.join([1,2,3]) == "123"
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end
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test :join_with_list do
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assert Enum.join([], ' = ') == ''
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assert Enum.join([1,2,3], ' = ') == '1 = 2 = 3'
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assert Enum.join([1,"2",3], ' = ') == '1 = 2 = 3'
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end
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test :map_join_with_bin do
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assert Enum.map_join([], " = ", &1 * 2) == ""
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assert Enum.map_join([1,2,3], " = ", &1 * 2) == "2 = 4 = 6"
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assert Enum.map_join([1,2,3], &1 * 2) == "246"
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end
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test :map_join_with_list do
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assert Enum.map_join([], ' = ', &1 * 2) == ''
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assert Enum.map_join([1,2,3], ' = ', &1 * 2) == '2 = 4 = 6'
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end
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test :map do
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assert Enum.map([], fn(x) -> x * 2 end) == []
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assert Enum.map([1,2,3], fn(x) -> x * 2 end) == [2,4,6]
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end
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test :map_reduce do
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assert Enum.map_reduce([], 1, fn(x, acc, do: { x * 2, x + acc })) == { [], 1 }
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assert Enum.map_reduce([1,2,3], 1, fn(x, acc, do: { x * 2, x + acc })) == { [2,4,6], 7 }
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end
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test :partition do
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assert Enum.partition([1,2,3], fn(x, do: rem(x, 2) == 0)) == { [2], [1,3] }
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assert Enum.partition([2,4,6], fn(x, do: rem(x, 2) == 0)) == { [2,4,6], [] }
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end
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test :qsort do
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assert Enum.qsort([5,3,2,4,1]) == [1,2,3,4,5]
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end
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test :split do
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assert Enum.split([1,2,3], 0) == { [], [1,2,3] }
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assert Enum.split([1,2,3], 1) == { [1], [2,3] }
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assert Enum.split([1,2,3], 2) == { [1,2], [3] }
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assert Enum.split([1,2,3], 3) == { [1,2,3], [] }
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assert Enum.split([1,2,3], 4) == { [1,2,3], [] }
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assert Enum.split([], 3) == { [], [] }
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end
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test :split_with do
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assert Enum.split_with([1,2,3], fn(_, do: false)) == { [], [1,2,3] }
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assert Enum.split_with([1,2,3], fn(_, do: true)) == { [1,2,3], [] }
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assert Enum.split_with([1,2,3], fn(x, do: x > 2)) == { [], [1,2,3] }
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assert Enum.split_with([1,2,3], fn(x, do: x > 3)) == { [], [1,2,3] }
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assert Enum.split_with([1,2,3], fn(x, do: x < 3)) == { [1,2], [3] }
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assert Enum.split_with([], fn(_, do: true)) == { [], [] }
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end
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test :take do
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assert Enum.take([1,2,3], 0) == []
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assert Enum.take([1,2,3], 1) == [1]
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assert Enum.take([1,2,3], 2) == [1,2]
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assert Enum.take([1,2,3], 3) == [1,2,3]
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assert Enum.take([1,2,3], 4) == [1,2,3]
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assert Enum.take([], 3) == []
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end
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test :take_while do
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assert Enum.take_while([1,2,3], fn(x, do: x > 3)) == []
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assert Enum.take_while([1,2,3], fn(x, do: x <= 1)) == [1]
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assert Enum.take_while([1,2,3], fn(x, do: x <= 3)) == [1,2,3]
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assert Enum.take_while([], fn(_, do: true)) == []
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end
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end
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defmodule EnumTest.Dict.Common do
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defmacro __using__(module, _opts // []) do
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quote do
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use ExUnit.Case
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test :all? do
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dict = unquote(module).new [{2,2}, {3,4}, {4,6}]
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assert Enum.all?(dict, fn({_, v}, do: rem(v, 2) == 0))
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refute Enum.all?(dict, fn({k, _}, do: rem(k, 2) == 0))
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assert Enum.all?(unquote(module).new)
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end
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test :any? do
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dict = unquote(module).new [{2,2}, {3,4}, {4,6}]
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refute Enum.any?(dict, fn({_, v}, do: rem(v, 2) == 1))
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assert Enum.any?(dict, fn({k, _}, do: rem(k, 2) == 1))
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refute Enum.any?(unquote(module).new)
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end
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test :find do
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dict = unquote(module).new [a: 1, b: 2, c: 3]
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assert nil == Enum.find(dict, fn({_, v}, do: v == 0))
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assert :ok == Enum.find(dict, :ok, fn({_, v}, do: v == 0))
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assert {:a, 1} == Enum.find(dict, fn({_, v}, do: rem(v, 2) == 1))
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assert {:b, 2} == Enum.find(dict, fn({_, v}, do: rem(v, 2) == 0))
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end
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test :find_value do
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dict = unquote(module).new [a: 1, b: 2, c: 3]
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assert nil == Enum.find_value(dict, fn({_, v}, do: v == 0))
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assert :ok == Enum.find_value(dict, :ok, fn({_, v}, do: v == 0))
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assert Enum.find_value(dict, fn({_, v}, do: rem(v, 2) == 1))
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end
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test :empty? do
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assert Enum.empty?(unquote(module).new)
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refute Enum.empty?(unquote(module).new [a: 1])
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end
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test :each do
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empty_dict = unquote(module).new
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assert empty_dict == Enum.each(empty_dict, fn(x, do: x))
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dict = unquote(module).new [{"one",1}, {"two",2}, {"three",3}]
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assert dict == Enum.each(dict, fn({k, v}, do: Process.put(k, v * 2)))
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assert 2 == Process.get("one")
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assert 4 == Process.get("two")
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assert 6 == Process.get("three")
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after:
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Process.delete("one")
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Process.delete("two")
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Process.delete("three")
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end
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test :to_list do
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dict = unquote(module).new [{"one",1}, {"two",2}, {"three",3}]
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assert [{"one", 1}, {"three", 3}, {"two", 2}] == List.sort Enum.to_list(dict)
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end
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test :filter do
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all = [a: 1, b: 2, c: 3, d: 4]
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odd = [a: 1, c: 3]
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even = [b: 2, d: 4]
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dict = unquote(module).new(all)
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assert Enum.filter(dict, fn({_, v}, do: rem(v, 2) == 1)) == odd
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assert Enum.filter(dict, fn({_, v}, do: rem(v, 2) == 0)) == even
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assert Enum.filter(dict, fn(x, do: x)) == all
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end
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test :filter_map do
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odd_dict = unquote(module).new [a: 1, b: 2, c: 3]
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even_dict = unquote(module).new [a: 2, b: 4, c: 6]
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assert Enum.filter_map(odd_dict,
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fn({_, v}, do: rem(v, 2) == 0),
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fn({k, v}, do: { k, v * 2 })) == [b: 4]
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assert Enum.filter_map(even_dict,
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fn({_, v}, do: rem(v, 2) == 0),
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fn({k, v}, do: { k, v * 2 })) == [a: 4, b: 8, c: 12]
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end
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test :join do
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dict = unquote(module).new [a: 1, b: 2, c: 3]
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assert_raise UndefinedFunctionError, fn ->
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Enum.join dict, ","
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end
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assert_raise UndefinedFunctionError, fn ->
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Enum.join dict, ','
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end
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end
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test :reduce do
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dict = unquote(module).new [a: 1, b: 2, c: 3]
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assert 1 == Enum.reduce(unquote(module).new, 1, fn(x, acc, do: x + acc))
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assert 7 == Enum.reduce(dict, 1, fn({_, v}, acc, do: v + acc))
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end
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test :map do
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dict = unquote(module).new [a: 1, b: 2, c: 3]
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assert Enum.map(dict, fn({k, v}) -> { k, v * 2 } end) == [a: 2, b: 4, c: 6]
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assert Enum.map(unquote(module).new, fn(x) -> x * 2 end) == []
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end
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test :map_reduce do
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dict = unquote(module).new [a: 1, b: 2, c: 3]
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double = [a: 2, b: 4, c: 6]
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assert Enum.map_reduce(dict, 1, fn({k, v}, acc, do: { {k, v * 2}, v + acc })) == { double, 7 }
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assert Enum.map_reduce(unquote(module).new, 1, fn(x, acc, do: { x * 2, x + acc })) == { [], 1 }
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end
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test :partition do
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all = [a: 1, b: 2, c: 3, d: 4, e: 5, f: 6, g: 7]
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below_4 = [a: 1, b: 2, c: 3]
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above_4 = [d: 4, e: 5, f: 6, g: 7]
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dict = unquote(module).new all
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assert { below_4, above_4 } == Enum.partition(dict, fn({_k, v}, do: v < 4))
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assert { all, [] } == Enum.partition(dict, fn({_k, v}, do: v < 10))
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end
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test :qsort do
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dict = unquote(module).new [{:b,2},{:c,3},{:a,1},{:d,4}]
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assert Enum.qsort(dict) == [a: 1, b: 2, c: 3, d: 4]
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end
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end
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end
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end
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defmodule EnumTest.HashDict do
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require EnumTest.Dict.Common
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EnumTest.Dict.Common.__using__(HashDict)
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test :drop do
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assert_raise Protocol.UndefinedError, fn ->
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Enum.drop HashDict.new, 5
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end
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end
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test :drop_while do
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assert_raise Protocol.UndefinedError, fn ->
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Enum.drop_while HashDict.new, fn(x, do: x)
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end
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end
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test :split do
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assert_raise Protocol.UndefinedError, fn ->
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Enum.split HashDict.new, 5
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end
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end
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test :split_with do
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assert_raise Protocol.UndefinedError, fn ->
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Enum.split_with HashDict.new, fn(x, do: x)
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end
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end
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test :take do
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assert_raise Protocol.UndefinedError, fn ->
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Enum.take HashDict.new, 5
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end
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end
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test :take_while do
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assert_raise Protocol.UndefinedError, fn ->
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Enum.take_while HashDict.new, fn(x, do: x)
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end
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end
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end
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defmodule EnumTest.Orddict do
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require EnumTest.Dict.Common
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EnumTest.Dict.Common.__using__(Orddict)
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test :drop do
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dict = Orddict.new [a: 1, b: 2, c: 3]
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assert Enum.drop(dict, 2) == [c: 3]
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assert Enum.drop(dict, 3) == []
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assert Enum.drop(dict, 4) == []
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end
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test :drop_while do
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dict = Orddict.new [a: 1, b: 2, c: 3]
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assert Enum.drop_while(dict, fn({_k, v}, do: v < 3)) == [c: 3]
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end
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test :split do
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dict = Orddict.new [a: 1, b: 2, c: 3]
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assert Enum.split(dict, 1) == { [a: 1], [b: 2, c: 3] }
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assert Enum.split(dict, 0) == { [], [a: 1, b: 2, c: 3] }
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assert Enum.split(dict, 3) == { [a: 1, b: 2, c: 3], [] }
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assert Enum.split(dict, 4) == { [a: 1, b: 2, c: 3], [] }
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end
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test :split_with do
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dict = Orddict.new [a: 1, b: 3, c: 2, d: 4]
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assert Enum.split_with(dict, fn({_k, v}, do: rem(v, 2) == 1)) == { [a: 1, b: 3], [c: 2, d: 4] }
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end
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test :take do
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dict = Orddict.new [a: 1, b: 2, c: 3, d: 4]
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assert Enum.take(dict, 2) == [a: 1, b: 2]
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assert Enum.take(dict, 0) == []
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assert Enum.take(dict, 4) == [a: 1, b: 2, c: 3, d: 4]
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assert Enum.take(dict, 5) == [a: 1, b: 2, c: 3, d: 4]
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end
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test :take_while do
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dict = Orddict.new [a: 1, b: 3, c: 2, d: 4]
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assert Enum.take_while(dict, fn({_k, v}, do: rem(v, 2) == 1)) == [a: 1, b: 3]
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assert Enum.take_while(dict, fn({_k, v}, do: v < 10)) == [a: 1, b: 3, c: 2, d: 4]
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assert Enum.take_while(dict, fn({_k, v}, do: v < 1)) == []
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end
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end
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