回答編集履歴
1
テストコードを追加
answer
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@@ -58,4 +58,81 @@
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社会人です。
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```
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また、余計なお世話ですが、年齢通りに進学しない人もいますし、大学に行かない人も、逆に大学を出てすぐに社会人にならない人もいますので、使いみちによってはその辺の配慮も必要かと存じます。
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また、余計なお世話ですが、年齢通りに進学しない人もいますし、大学に行かない人も、逆に大学を出てすぐに社会人にならない人もいますので、使いみちによってはその辺の配慮も必要かと存じます。
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---
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せっかく書いたので、テストコードを載せておきます。
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```ruby
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# test_sample.rb
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require 'test/unit'
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require 'date'
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class Sample
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def self.age(birthday, today)
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(today.strftime('%Y%m%d').to_i - birthday.strftime('%Y%m%d').to_i) / 10000
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end
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def self.schoolYear(birthday, today = Date.today)
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toDate = Time.mktime(today.year - (today.month < 4 ? 1 : 0), 4, 1)
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(toDate.strftime('%Y%m%d').to_i - birthday.strftime('%Y%m%d').to_i) / 10000
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end
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end
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class TestSample < Test::Unit::TestCase
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def test_age
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assert_equal 20, Sample.age(Time.mktime(2000, 1, 1), Time.mktime(2020, 1, 1))
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assert_equal 19, Sample.age(Time.mktime(2000, 1, 2), Time.mktime(2020, 1, 1))
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assert_equal 20, Sample.age(Time.mktime(2000, 1, 2), Time.mktime(2020, 1, 2))
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assert_equal 20, Sample.age(Time.mktime(2000, 1, 2), Time.mktime(2020, 1, 3))
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assert_equal 19, Sample.age(Time.mktime(2000, 2, 28), Time.mktime(2020, 2, 27))
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assert_equal 20, Sample.age(Time.mktime(2000, 2, 28), Time.mktime(2020, 2, 28))
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assert_equal 20, Sample.age(Time.mktime(2000, 2, 28), Time.mktime(2020, 2, 29))
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assert_equal 20, Sample.age(Time.mktime(2000, 2, 28), Time.mktime(2020, 3, 1))
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assert_equal 19, Sample.age(Time.mktime(2000, 2, 29), Time.mktime(2020, 2, 28))
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assert_equal 20, Sample.age(Time.mktime(2000, 2, 29), Time.mktime(2020, 2, 29))
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assert_equal 20, Sample.age(Time.mktime(2000, 2, 29), Time.mktime(2020, 3, 1))
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assert_equal 18, Sample.age(Time.mktime(2001, 2, 28), Time.mktime(2020, 2, 27))
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assert_equal 19, Sample.age(Time.mktime(2001, 2, 28), Time.mktime(2020, 2, 28))
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assert_equal 19, Sample.age(Time.mktime(2001, 2, 28), Time.mktime(2020, 2, 29))
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assert_equal 19, Sample.age(Time.mktime(2001, 2, 28), Time.mktime(2020, 3, 1))
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assert_equal 20, Sample.age(Time.mktime(2000, 2, 29), Time.mktime(2021, 2, 27))
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assert_equal 20, Sample.age(Time.mktime(2000, 2, 29), Time.mktime(2021, 2, 28))
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assert_equal 21, Sample.age(Time.mktime(2000, 2, 29), Time.mktime(2021, 3, 1))
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end
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def test_schoolYear
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assert_equal 20, Sample.schoolYear(Time.mktime(2000, 1, 1))
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assert_equal 20, Sample.schoolYear(Time.mktime(2000, 2, 29))
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assert_equal 20, Sample.schoolYear(Time.mktime(2000, 3, 31))
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assert_equal 20, Sample.schoolYear(Time.mktime(2000, 4, 1))
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assert_equal 19, Sample.schoolYear(Time.mktime(2000, 4, 2))
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assert_equal 19, Sample.schoolYear(Time.mktime(2000, 5, 1))
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assert_equal 19, Sample.schoolYear(Time.mktime(2000, 12, 31))
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assert_equal 19, Sample.schoolYear(Time.mktime(2000, 1, 1), Date.new(2020, 1, 1))
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assert_equal 19, Sample.schoolYear(Time.mktime(2000, 1, 1), Date.new(2020, 3, 31))
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assert_equal 20, Sample.schoolYear(Time.mktime(2000, 1, 1), Date.new(2020, 4, 1))
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assert_equal 20, Sample.schoolYear(Time.mktime(2000, 1, 1), Date.new(2020, 4, 2))
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assert_equal 20, Sample.schoolYear(Time.mktime(2000, 1, 1), Date.new(2020, 12, 31))
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assert_equal 19, Sample.schoolYear(Time.mktime(2000, 4, 1), Date.new(2020, 1, 1))
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assert_equal 19, Sample.schoolYear(Time.mktime(2000, 4, 1), Date.new(2020, 3, 31))
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assert_equal 20, Sample.schoolYear(Time.mktime(2000, 4, 1), Date.new(2020, 4, 1))
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assert_equal 20, Sample.schoolYear(Time.mktime(2000, 4, 1), Date.new(2020, 4, 2))
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assert_equal 20, Sample.schoolYear(Time.mktime(2000, 4, 1), Date.new(2020, 12, 31))
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assert_equal 18, Sample.schoolYear(Time.mktime(2000, 4, 2), Date.new(2020, 1, 1))
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assert_equal 18, Sample.schoolYear(Time.mktime(2000, 4, 2), Date.new(2020, 3, 31))
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assert_equal 19, Sample.schoolYear(Time.mktime(2000, 4, 2), Date.new(2020, 4, 1))
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assert_equal 19, Sample.schoolYear(Time.mktime(2000, 4, 2), Date.new(2020, 4, 2))
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assert_equal 19, Sample.schoolYear(Time.mktime(2000, 4, 2), Date.new(2020, 12, 31))
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end
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end
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```
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