47 lines
1.5 KiB
Elixir
47 lines
1.5 KiB
Elixir
defmodule Growth.Calc.AgeTest do
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@moduledoc false
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use ExUnit.Case, async: true
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alias Growth.Calc.Age
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describe "calculate/2" do
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test "consider today as date of measurement" do
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date_of_birth = Date.add(Date.utc_today(), -7)
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assert 7 == Age.calculate(:day, date_of_birth)
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end
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end
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describe "calculate/3" do
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test "calculate age in days" do
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date_of_measurement = ~D[2024-06-09]
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days_of_birth = [{-1, 1}, {-7, 7}, {-30, 30}]
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Enum.map(days_of_birth, fn {days_ago, expected_age} ->
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date_of_birth = Date.add(date_of_measurement, days_ago)
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assert expected_age == Age.calculate(:day, date_of_birth, date_of_measurement)
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end)
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end
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test "calculate age in completed weeks" do
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date_of_measurement = ~D[2024-06-09]
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days_of_birth = [{-1, 0}, {-7, 1}, {-16, 2}, {-30, 4}]
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Enum.map(days_of_birth, fn {days_ago, expected_age} ->
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date_of_birth = Date.add(date_of_measurement, days_ago)
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assert expected_age == Age.calculate(:week, date_of_birth, date_of_measurement)
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end)
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end
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test "calculate age in completed months" do
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date_of_measurement = ~D[2024-06-09]
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days_of_birth = [{-1, 0}, {-16, 0}, {-31, 1}, {-70, 2}, {-93, 3}]
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Enum.map(days_of_birth, fn {days_ago, expected_age} ->
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date_of_birth = Date.add(date_of_measurement, days_ago)
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assert expected_age == Age.calculate(:month, date_of_birth, date_of_measurement)
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end)
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end
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end
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end
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