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POWhy is my image_url Unit Test failing? (from Agile Web Development with Rails 'Depot' tutorial)
 

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  1. POWhy is my image_url Unit Test failing? (from Agile Web Development with Rails 'Depot' tutorial)
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    <p>I'm new and trying to learn Rails using the book <em>Agile Web Development with Rails, Fourth Edition</em> (for Rails 3.2). Been able to get through all of the chapters so far without hiccups. If there were errors, it was usually my sloppy code (forgetting a comma, 'end' statement, etc.). But now I've hit a snag in the chapter on Unit Testing for Models. At the part where we're validating that the image URL ends with either .gif, .jpg, or .png.</p> <p>I copied the code verbatim from the book for the depot/test/product_test.rb file:</p> <pre><code>test "image url" do ok = %w{ fred.gif fred.jpg fred.png FRED.JPG FRED.Jpg http://a.b.c/x/y/z/fred.gif } bad = %w{ fred.doc fred.gif/more fred.gif.more } ok.each do |name| assert new_product(name).valid?, "#{name} shouldn't be invalid" end bad.each do |name| assert new_product(name).invalid?, "#{name} shouldn't be valid" end </code></pre> <p>But when I run the <strong>rake test:units</strong> command, I get the following failure...</p> <pre class="lang-none prettyprint-override"><code>1) Failure: test_image_url(ProductTest)[../depot/test/unit/product_test.rb:46]: fred.gif shouldn't be invalid 4 tests, 13 assertions, 1 failures, 0 errors, 0 skips rake aborted! </code></pre> <p>Does this mean that the image URL it's testing is invalid? Why is the test failing if what it says "fred.gif shouldn't be invalid" is correct?</p> <p>I'm pretty confident that it's this part of the test that must be incorrect because the other tests I have in there (ex. "product attributes must not be empty", "product price must be positive", etc.) run just fine. I get no failures if I take out the "test image url" code block.</p> <p>Please let me know what I'm doing wrong. If you need me to post the entirety of the ProductTest, I can.</p> <hr> <p><strong>UPDATE</strong>: There was a typo in my Products model that was causing the test to fail. All fixed now.</p>
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