Merged r26269 from trunk.

browser/ftests/test_filewidget.py

@@ -0,0 +1,178 @@
+##############################################################################
+#
+# Copyright (c) 2001, 2002 Zope Corporation and Contributors.
+# All Rights Reserved.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+# FOR A PARTICULAR PURPOSE.
+#
+##############################################################################
+"""
+
+$Id$
+"""
+
+import unittest
+from StringIO import StringIO
+from persistent import Persistent
+from transaction import get_transaction
+
+from zope.interface import Interface
+from zope.interface import implements
+
+from zope.schema.interfaces import IField
+from zope.schema import Field
+
+from zope.app.form.browser.textwidgets import FileWidget
+
+from support import *
+from zope.app.traversing.api import traverse
+
+from zope.app.tests.functional import BrowserTestCase
+from zope.app.form.interfaces import IInputWidget
+
+class IFileField(IField):
+    """Field for representing a file that can be edited by FileWidget."""
+
+
+class FileField(Field):
+
+    implements(IFileField)
+
+
+defineWidgetView(IFileField, FileWidget, IInputWidget)
+
+
+class IFileTest(Interface):
+
+    f1 = FileField()
+    f2 = FileField(required=False)
+
+registerEditForm(IFileTest)
+
+
+class FileTest(Persistent):
+
+    implements(IFileTest)
+
+    def __init__(self):
+        self.f1 = None
+        self.f2 = 'foo'
+
+defineSecurity(FileTest, IFileTest)
+
+
+class SampleTextFile(StringIO):
+
+    def __init__(self, buf, filename=''):
+        StringIO.__init__(self, buf)
+        self.filename = filename
+
+
+class Test(BrowserTestCase):
+
+    sampleText = "The quick brown fox\njumped over the lazy dog."
+    sampleTextFile = SampleTextFile(sampleText)
+
+    emptyFileName = 'empty.txt'
+    emptyFile = SampleTextFile('', emptyFileName)
+
+
+    def test_display_editform(self):
+        self.getRootFolder()['test'] = FileTest()
+        get_transaction().commit()
+
+        # display edit view
+        response = self.publish('/test/edit.html')
+        self.assertEqual(response.getStatus(), 200)
+
+        # field should be displayed in a file input element
+        self.assert_(patternExists(
+            '<input .* name="field.f1".* type="file".*>', response.getBody()))
+        self.assert_(patternExists(
+            '<input .* name="field.f2".* type="file".*>', response.getBody()))
+
+
+    def test_submit_text(self):
+        self.getRootFolder()['test'] = FileTest()
+        get_transaction().commit()
+        object = traverse(self.getRootFolder(), 'test')
+        self.assert_(object.f1 is None)
+        self.assertEqual(object.f2, 'foo')
+
+        # submit a sample text file
+        response = self.publish('/test/edit.html', form={
+            'UPDATE_SUBMIT' : '',
+            'field.f1' : self.sampleTextFile,
+            'field.f2' : self.sampleTextFile })
+        self.assertEqual(response.getStatus(), 200)
+        self.assert_(updatedMsgExists(response.getBody()))
+
+        # check new values in object
+        object = traverse(self.getRootFolder(), 'test')
+        self.assertEqual(object.f1, self.sampleText)
+        self.assertEqual(object.f2, self.sampleText)
+
+
+    def test_invalid_value(self):
+        """Invalid input is treated as 'no input' by the file widget.
+
+        To test this, we submit an invalid value for a required field f1.
+        """
+        self.getRootFolder()['test'] = FileTest()
+        get_transaction().commit()
+
+        # submit an invalid file value
+        response = self.publish('/test/edit.html', form={
+            'UPDATE_SUBMIT' : '',
+            'field.f1' : 'not a file - same as missing input' })
+        self.assertEqual(response.getStatus(), 200)
+        self.assert_(validationErrorExists('f1',
+            'Form input is not a file object', response.getBody()))
+
+
+    def test_required_validation(self):
+        self.getRootFolder()['test'] = FileTest()
+        get_transaction().commit()
+
+        # submit missing value for required field f1
+        response = self.publish('/test/edit.html', form={
+            'UPDATE_SUBMIT' : '',
+            'field.f1' : '',
+            'field.f2' : self.sampleTextFile })
+        self.assertEqual(response.getStatus(), 200)
+
+        # confirm error msgs
+        self.assert_(missingInputErrorExists('f1', response.getBody()))
+        self.assert_(not missingInputErrorExists('f2', response.getBody()))
+
+
+    def test_empty_file(self):
+        self.getRootFolder()['test'] = FileTest()
+        get_transaction().commit()
+
+        # submit an empty text file
+        response = self.publish('/test/edit.html', form={
+            'UPDATE_SUBMIT' : '',
+            'field.f2' : self.emptyFile })
+        self.assertEqual(response.getStatus(), 200)
+        self.assert_(updatedMsgExists(response.getBody()))
+
+        # new value for f1 should be field.missing_value (i.e, None)
+        object = traverse(self.getRootFolder(), 'test')
+        self.assert_(object.f1 is None)
+
+
+def test_suite():
+    suite = unittest.TestSuite()
+    suite.addTest(unittest.makeSuite(Test))
+    return suite
+
+if __name__=='__main__':
+    unittest.main(defaultTest='test_suite')
+
+