From: merch-redmine@...
Date: 2019-07-24T15:17:40+00:00
Subject: [ruby-core:93903] [Ruby master Bug#11935] Date.new returns inconsistent errors when passed invalid arguments

Issue #11935 has been updated by jeremyevans0 (Jeremy Evans).

Assignee deleted (matz (Yukihiro Matsumoto))

I agree that we should make these errors consistent and have submitted a pull request to do so: https://github.com/ruby/date/pull/9

----------------------------------------
Bug #11935: Date.new returns inconsistent errors when passed invalid arguments
https://bugs.ruby-lang.org/issues/11935#change-79949

* Author: CJKinni (Christopher Kinniburgh)
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: 2.4.0dev
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: UNKNOWN
----------------------------------------
When passed invalid data, such as floats and nil values, the Date.new function returns a variety of results that aren't particularly easy to read and understand.  The 'undefined method 'div' for nil:NilClass' is particularly unhelpful.

~~~
irb(main):002:0> Date.new(1,nil,1)
TypeError: no implicit conversion from nil to integer
irb(main):003:0> Date.new(1,1,nil)
NoMethodError: undefined method `div' for nil:NilClass
irb(main):004:0> Date.new(nil,1,1)
NoMethodError: undefined method `<' for nil:NilClass
~~~

I have attached a potential fix.  It returns a more consistent set of "invalid day", "invalid month", and "invalid year" argument errors.

---Files--------------------------------
date-new-argument-errors.patch (1.14 KB)


-- 
https://bugs.ruby-lang.org/

Unsubscribe: <mailto:ruby-core-request@ruby-lang.org?subject=unsubscribe>
<http://lists.ruby-lang.org/cgi-bin/mailman/options/ruby-core>