Unit Rails - How To Assert One Number Is Greater Than Another One?

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Tags:

assert

ruby-on-rails

testunit

I am writing my first unit tests with Test::Unit and I have reached a point where I need to compare two numbers. Much to my surprise, I have discovered that none of the following were available:

assert_greater_than assert_lesser_than assert_greater_or_equal_than assert_lesser_or_equal_than

Is this normal? How should I do it then?

Thanks

568 asked Apr 28 '11 13:04

Amokrane Chentir

3 Answers

Rather than provide a bunch of different assertions as you suggest, Test::Unit provides the method assert_operator, used like this:

assert_operator x, :>, y assert_operator x, :>=, y etc. 198 answered Oct 17 '22 11:10

Jacob Mattison

How about this simple thing,

assert x>y 14 answered Oct 17 '22 11:10

bragboy

Here are some functions you can put in test/test_helper.rb

def assert_gt(a, b) assert_operator a, :>, b end def assert_gte(a, b) assert_operator a, :>=, b end def assert_lt(a, b) assert_operator a, :<, b end def assert_lte(a, b) assert_operator a, :<=, b end

Then call like so:

assert_gt 6, 3 assert_gte 5, 5 assert_lt 4, 5 assert_lte 5, 5 5 answered Oct 17 '22 10:10

Tyler

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