55 lines
1007 B
Elixir
55 lines
1007 B
Elixir
defmodule Arithmetic do
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use Koans
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koan "it can add numbers" do
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assert 3 + 4 == 7
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end
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koan "it can substract numbers" do
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assert 7 - 4 == 3
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end
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koan "it can multiply" do
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assert 3 * 4 == 12
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end
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koan "floats and integers can be equal..." do
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assert 3.0 == 3
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end
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koan "..unless they are not precisely the same" do
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assert 3.2 != 3
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end
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koan "it does floating point division" do
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assert 5 / 2 == 2.5
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end
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koan "it does integer division" do
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numerator = 5
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denominator = 2
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assert div(numerator, denominator) == 2
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end
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koan "it calculates the remainder of a division" do
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numerator = 5
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denominator = 2
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assert rem(numerator, denominator) == 1
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end
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koan "it finds the maximum in a list" do
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assert Enum.max([1,2,3,4]) == 4
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end
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koan "it can compare numbers" do
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assert 5 > 2
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assert 5 >= 5
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assert 3 < 7
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assert 5 <= 5
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end
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koan "it finds the minimum in a list" do
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assert Enum.min([1,2,3,4]) == 1
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end
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end
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