我正在寫一個簡單的類來將字符串解析爲相對日期。rspec中的時差
module RelativeDate
class InvalidString < StandardError; end
class Parser
REGEX = /([0-9]+)_(day|week|month|year)_(ago|from_now)/
def self.to_time(value)
if captures = REGEX.match(value)
captures[1].to_i.send(captures[2]).send(captures[3])
else
raise InvalidString, "#{value} could not be parsed"
end
end
end
end
該代碼似乎工作正常。
現在,當我嘗試我的規格,我只在年份和月份獲得時間差
require 'spec_helper'
describe RelativeDate::Parser do
describe "#to_time" do
before do
Timecop.freeze
end
['day','week','month','year'].each do |type|
it "should parse #{type} correctly" do
RelativeDate::Parser.to_time("2_#{type}_ago").should == 2.send(type).ago
RelativeDate::Parser.to_time("2_#{type}_from_now").should == 2.send(type).from_now
end
end
after do
Timecop.return
end
end
end
輸出
..FF
Failures:
1) RelativeDate::Parser#to_time should parse year correctly
Failure/Error: RelativeDate::Parser.to_time("2_#{type}_ago").should == 2.send(type).ago
expected: Wed, 29 Aug 2012 22:40:14 UTC +00:00
got: Wed, 29 Aug 2012 10:40:14 UTC +00:00 (using ==)
Diff:
@@ -1,2 +1,2 @@
-Wed, 29 Aug 2012 22:40:14 UTC +00:00
+Wed, 29 Aug 2012 10:40:14 UTC +00:00
# ./spec/lib/relative_date/parser_spec.rb:11:in `(root)'
2) RelativeDate::Parser#to_time should parse month correctly
Failure/Error: RelativeDate::Parser.to_time("2_#{type}_ago").should == 2.send(type).ago
expected: Sun, 29 Jun 2014 22:40:14 UTC +00:00
got: Mon, 30 Jun 2014 22:40:14 UTC +00:00 (using ==)
Diff:
@@ -1,2 +1,2 @@
-Sun, 29 Jun 2014 22:40:14 UTC +00:00
+Mon, 30 Jun 2014 22:40:14 UTC +00:00
# ./spec/lib/relative_date/parser_spec.rb:11:in `(root)'
Finished in 0.146 seconds
4 examples, 2 failures
Failed examples:
rspec ./spec/lib/relative_date/parser_spec.rb:10 # RelativeDate::Parser#to_time should parse year correctly
rspec ./spec/lib/relative_date/parser_spec.rb:10 # RelativeDate::Parser#to_time should parse month correctly
第一個似乎是一個時區的問題,但另外一個是連相隔一天?這件事我真的很無能。
確實很有意思。我將不得不充分理解你在說什麼。 – 2014-09-01 02:18:35
2.months.instance_eval(&:前)這似乎工作。 – 2014-09-01 02:34:09
我已經添加了一些更多的解釋。請讓我知道你正在尋找什麼其他信息。 – 2014-09-01 03:33:47