66 lines
2.4 KiB
Markdown
66 lines
2.4 KiB
Markdown
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---
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title: "Python, Zombie, forms, tables and tests"
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date: 2015-04-07T22:25:11Z
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draft: false
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tags: [ ]
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image: python.jpg
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---
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<p>Sometimes you feel that the world is against you, sometimes it's a computer what makes your life miserable. This time was a cocktail of elements. Trying to test a simple form functionally from <a href="https://github.com/ryanpetrello/python-zombie/">python-zombie</a> was like a nightmare.</p>
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<p>I'm working testing a project using <code>node v0.8.23</code>, <code>npm 1.4.4</code>, <code>zombie 1.4.1</code> and <code>python-zombie 0.1.0a5</code>. The template I'm trying to render while testing has a code like:</p>
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```
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<form action="custom/url/delete" method="POST">
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<button>Delete</button>
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</form>
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```
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<p>The test I'm trying to run is:</p>
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```
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from zombie import Browser
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...
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def test_remove_category(self):
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browser = self.browser
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...
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# Go to the edit link
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browser.clickLink('a[href$="/edit"]')
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import pdb; pdb.set_trace()
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browser.pressButton('form[action$=delete] button[type=submit]')
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...
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```
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<p>The problem is the <code>pressButton</code> line (ignore the pdb for a moment), it's trying to press the button inside the form but the test is failing raising an error like:</p>
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```
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NodeError: Error: No BUTTON 'form[action$=delete] button[type=submit]'
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```
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<p>Trying to debug the problem - now is where pdb gets the focus - I got that the form was not nicely rendered:</p>
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```
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(Pdb) print(browser.html())
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....
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<form method="POST" action="custom/url/delete"></form>
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<button type="submit" name="submit">Delete</button>
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```
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<p>After an intense testing + browsing + reading task I've realized wtf was happening, taking a look to the template code we have the form inside atable, as child of a <tbody> element, something like:</p>
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```
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<table>
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<thead>
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...
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</thead>
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<tbody>
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<tal:r tal:repeat="q context.values()">
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<tr>...</tr>
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<div><form>...</form></div>
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</tal:r>
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</tbody>
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</table>
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```
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<p>But a form is not allowed to be a child of <code>table</code>, neither <code>tr</code> or <code>tbody</code> elements so I think it was the reason why it was not nicely rendered by zombie.</p>
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<p>After all it was no problem of zombie, the template was weird and, we've to be honest... it was funny and a great lucky to see this failing test.</p>
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