tests/admin_pages/test_form.py

@@ -2266,7 +2266,7 @@ def test_form_edit_string_field_validation(pub):
     # check default error message is not saved
     resp.form['validation$value_django'] = ''
     resp.form['validation$type'] = 'time'
-    resp.form['validation$error_message'] = 'Invalid time'
+    resp.form['validation$error_message'] = 'You should enter a valid time, between 00:00 and 23:59.'
     resp = resp.form.submit('submit').follow()
     assert FormDef.get(formdef.id).fields[0].validation == {
         'type': 'time',

tests/admin_pages/test_tests.py

@@ -469,16 +469,25 @@ def test_tests_edit_data_mark_as_failing(pub):
     # other error
     resp.forms[0]['f1'] = 'abcdefg'
     resp = resp.forms[0].submit('submit')
-    assert 'If test should fail on error "Only digits are allowed", click button below.' in resp.text
+    assert (
+        'If test should fail on error "You should enter digits only, for example: 123.", click button below.'
+        in resp.text
+    )
     assert 'Mark as failing' in resp.text
 
     # click mark as failing button
     resp = resp.forms[1].submit().follow()
     assert 'abcdefg' in resp.text
-    assert escape('This test is expected to fail on error "Only digits are allowed".') in resp.text
+    assert (
+        escape('This test is expected to fail on error "You should enter digits only, for example: 123.".')
+        in resp.text
+    )
 
     resp = resp.click('Edit data')
-    assert 'This test is expected to fail on error "Only digits are allowed".' in resp.text
+    assert (
+        'This test is expected to fail on error "You should enter digits only, for example: 123.".'
+        in resp.text
+    )
 
     resp.form['f1'] = '1234567'
     resp = resp.form.submit('submit').follow()
@@ -520,7 +529,10 @@ def test_tests_edit_data_mark_as_failing_hidden_error(pub):
 
     resp = app.get('/backoffice/forms/1/tests/%s/edit-data/' % testdef.id)
     resp = resp.form.submit('submit')
-    assert 'If test should fail on error "Only digits are allowed", click button below.' in resp.text
+    assert (
+        'If test should fail on error "You should enter digits only, for example: 123.", click button below.'
+        in resp.text
+    )
 
 
 def test_tests_edit_data_mark_as_failing_required_field(pub):
@@ -560,7 +572,10 @@ def test_tests_edit_data_mark_as_failing_required_field(pub):
     resp = resp.form.submit('submit')
     assert resp.pyquery('#form_error_f1').text() == 'required field'
     assert 'Mark as failing' in resp.text
-    assert 'If test should fail on error "Only digits are allowed", click button below.' in resp.text
+    assert (
+        'If test should fail on error "You should enter digits only, for example: 123.", click button below.'
+        in resp.text
+    )
 
 
 def test_tests_edit_data_is_in_backoffice(pub):
@@ -705,7 +720,7 @@ def test_tests_manual_run(pub):
     resp = resp.click('#%s' % result.id)
     assert 'Started by: Manual run.' in resp.text
     assert 'Success!' not in resp.text
-    assert 'Only digits are allowed.' in resp.text
+    assert 'You should enter digits only, for example: 123.' in resp.text
     assert 'disabled' not in resp.text
 
     TestDef.remove_object(testdef.id)
@@ -744,7 +759,7 @@ def test_tests_run_order(pub):
     resp = app.get('/backoffice/forms/1/tests/results/')
     resp = resp.click('Run tests').follow()
     assert resp.text.count('Success!') == 1
-    assert resp.text.count('Only digits are allowed') == 1
+    assert resp.text.count('You should enter digits only, for example: 123.') == 1
     assert resp.text.index('Failing test') < resp.text.index('Passing test')
 
 

tests/backoffice_pages/test_filters.py

@@ -62,7 +62,7 @@ def test_backoffice_filter(pub):
 
     resp.forms['listing-settings']['filter-start'].checked = True
     resp = resp.forms['listing-settings'].submit()
-    assert resp.text.count('>invalid date<') == 1  # only the one from <template>
+    assert resp.text.count('>You should enter a valid date.<') == 1  # only the one from <template>
     resp.forms['listing-settings']['filter-start-value'] = datetime.datetime(2015, 2, 1).strftime('%Y-%m-%d')
     resp = resp.forms['listing-settings'].submit()
     assert resp.text.count('<td>baz</td>') == 0

tests/form_pages/test_live.py

@@ -2317,7 +2317,11 @@ def test_field_live_validation(pub):
 
     resp.form['f1'] = 'abc'
     live_resp = app.post(url + '?field=f1', params=resp.form.submit_fields())
-    assert live_resp.json == {'err': 1, 'msg': 'Only digits are allowed', 'badInput': True}
+    assert live_resp.json == {
+        'err': 1,
+        'msg': 'You should enter digits only, for example: 123.',
+        'badInput': True,
+    }
 
 
 def test_block_field_live_validation(pub):
@@ -2353,7 +2357,11 @@ def test_block_field_live_validation(pub):
 
     resp.form['f2$element0$f1'] = 'abc'
     live_resp = app.post(url + '?field=f2__element0__f1', params=resp.form.submit_fields())
-    assert live_resp.json == {'err': 1, 'msg': 'Only digits are allowed', 'badInput': True}
+    assert live_resp.json == {
+        'err': 1,
+        'msg': 'You should enter digits only, for example: 123.',
+        'badInput': True,
+    }
 
     live_resp = app.post(url + '?field=f2__element0__fX', params=resp.form.submit_fields())
     assert live_resp.json == {'err': 2, 'msg': 'unknown sub field'}

tests/test_testdef.py

@@ -306,7 +306,8 @@ def test_validation_string_field(pub):
     with pytest.raises(TestError) as excinfo:
         testdef.run(formdef)
     assert (
-        str(excinfo.value) == 'Invalid value "xxx" for field "String field digits": Only digits are allowed.'
+        str(excinfo.value)
+        == 'Invalid value "xxx" for field "String field digits": You should enter digits only, for example: 123.'
     )
 
 
@@ -643,7 +644,10 @@ def test_validation_email_field(pub):
     testdef = TestDef.create_from_formdata(formdef, formdata)
     with pytest.raises(TestError) as excinfo:
         testdef.run(formdef)
-    assert str(excinfo.value) == 'Invalid value "xxx" for field "Test": must be a valid email address.'
+    assert (
+        str(excinfo.value)
+        == 'Invalid value "xxx" for field "Test": You should enter a valid email address, for example name@example.com.'
+    )
 
 
 def test_validation_boolean_field(pub):
@@ -691,7 +695,7 @@ def test_validation_date_field(pub):
     testdef = TestDef.create_from_formdata(formdef, formdata)
     with pytest.raises(TestError) as excinfo:
         testdef.run(formdef)
-    assert str(excinfo.value) == 'Invalid value "1312-01-01" for field "Test": invalid date.'
+    assert str(excinfo.value) == 'Invalid value "1312-01-01" for field "Test": You should enter a valid date.'
 
 
 def test_validation_map_field(pub):
@@ -769,7 +773,7 @@ def test_validation_file_field(pub):
     testdef = TestDef.create_from_formdata(formdef, formdata)
     with pytest.raises(TestError) as excinfo:
         testdef.run(formdef)
-    assert str(excinfo.value) == 'Invalid value "hop.pdf" for field "File": forbidden file type.'
+    assert str(excinfo.value) == 'Invalid value "hop.pdf" for field "File": forbidden file type'
 
 
 def test_validation_block_field(pub):
@@ -1029,7 +1033,7 @@ def test_expected_error(pub):
 
     formdata.data['1'] = 'abcdef'
     testdef = TestDef.create_from_formdata(formdef, formdata)
-    testdef.expected_error = 'Only digits are allowed'
+    testdef.expected_error = 'You should enter digits only, for example: 123.'
     testdef.run(formdef)
 
 
@@ -1057,19 +1061,22 @@ def test_expected_error_conditional_field(pub):
     testdef = TestDef.create_from_formdata(formdef, formdata)
     with pytest.raises(TestError) as excinfo:
         testdef.run(formdef)
-    assert str(excinfo.value) == 'Invalid value "b" for field "Text 2": Only digits are allowed.'
+    assert (
+        str(excinfo.value)
+        == 'Invalid value "b" for field "Text 2": You should enter digits only, for example: 123.'
+    )
 
     testdef = TestDef.create_from_formdata(formdef, formdata)
-    testdef.expected_error = 'Only digits are allowed'
+    testdef.expected_error = 'You should enter digits only, for example: 123.'
     testdef.run(formdef)
 
     formdata.data['1'] = 'b'
     testdef = TestDef.create_from_formdata(formdef, formdata)
-    testdef.expected_error = 'Only digits are allowed'
+    testdef.expected_error = 'You should enter digits only, for example: 123.'
     with pytest.raises(TestError) as excinfo:
         testdef.run(formdef)
     assert str(excinfo.value) == (
-        'Expected error "Only digits are allowed" but got error "Tried to fill field "Text 2" on '
+        'Expected error "You should enter digits only, for example: 123." but got error "Tried to fill field "Text 2" on '
         'page 1 but it is hidden." instead.'
     )
 

tests/test_widgets.py

@@ -891,7 +891,7 @@ def test_wcsextrastringwidget_builtin_validation():
     widget.field = fakefield
     mock_form_submission(req, widget, {'test': 'az'})
     assert widget.has_error()
-    assert widget.error == 'Only digits are allowed'
+    assert widget.error == 'You should enter digits only, for example: 123.'
 
     fakefield.validation = {'type': 'zipcode-fr'}
     widget = WcsExtraStringWidget('test', value='foo', required=False)
@@ -903,7 +903,7 @@ def test_wcsextrastringwidget_builtin_validation():
     widget.field = fakefield
     mock_form_submission(req, widget, {'test': '1234'})
     assert widget.has_error()
-    assert widget.error == 'Invalid zip code'
+    assert widget.error == 'You should enter a 5-digits zip code, for example 75014.'
 
 
 def test_wcsextrastringwidget_phone():
@@ -925,7 +925,7 @@ def test_wcsextrastringwidget_phone():
         widget.field = fakefield
         mock_form_submission(req, widget, {'test': invalid_case})
         assert widget.has_error()
-        assert widget.error == 'Invalid phone number'
+        assert widget.error == 'You should enter a valid phone number.'
 
     # and check it gets a special HTML input type
     widget = WcsExtraStringWidget('test', value='foo', required=False)
@@ -955,7 +955,7 @@ def test_wcsextrastringwidget_phone_fr():
     widget.field = fakefield
     mock_form_submission(req, widget, {'test': 'az'})
     assert widget.has_error()
-    assert widget.error == 'Invalid phone number'
+    assert widget.error == 'You should enter a valid 10-digits phone number, for example 06 39 98 89 93.'
 
     widget = WcsExtraStringWidget('test', value='foo', required=False)
     widget.field = fakefield
@@ -988,14 +988,14 @@ def test_wcsextrastringwidget_mobile_local():
     widget.field = fakefield
     mock_form_submission(req, widget, {'test': '01 23 45 67 89'})
     assert widget.has_error()
-    assert widget.error == 'Invalid phone number'
+    assert widget.error == 'You should enter a valid mobile phone number.'
 
     # extra characters
     widget = WcsExtraStringWidget('test', value='foo', required=False)
     widget.field = fakefield
     mock_form_submission(req, widget, {'test': '06 30 98 67 89 abc'})
     assert widget.has_error()
-    assert widget.error == 'Invalid phone number'
+    assert widget.error == 'You should enter a valid mobile phone number.'
 
     pub.load_site_options()
     if not pub.site_options.has_section('options'):
@@ -1043,7 +1043,7 @@ def test_wcsextrastringwidget_siren_validation():
     widget.field = fakefield
     mock_form_submission(req, widget, {'test': '443170130'})
     assert widget.has_error()
-    assert widget.error == 'Invalid SIREN code'
+    assert widget.error == 'You should enter a valid 9-digits SIREN code, for example 443170139.'
     assert widget.value == '443170130'
 
     widget = WcsExtraStringWidget('test', value='foo', required=False)
@@ -1104,7 +1104,7 @@ def test_wcsextrastringwidget_siret_validation():
     widget.field = fakefield
     mock_form_submission(req, widget, {'test': '44317013900037'})
     assert widget.has_error()
-    assert widget.error == 'Invalid SIRET code'
+    assert widget.error == 'You should enter a valid 14-digits SIRET code, for example 44317013900036.'
     assert widget.value == '44317013900037'
 
     widget = WcsExtraStringWidget('test', value='foo', required=False)
@@ -1165,7 +1165,10 @@ def test_wcsextrastringwidget_nir_validation():
     widget.field = fakefield
     mock_form_submission(req, widget, {'test': '42'})
     assert widget.has_error()
-    assert widget.error == 'Invalid NIR'
+    assert (
+        widget.error
+        == 'You should enter a valid 15-digits social security number, for example 294037512000522.'
+    )
     assert widget.value == '42'
 
     widget = WcsExtraStringWidget('test', value='foo', required=False)
@@ -1282,7 +1285,10 @@ def test_wcsextrastringwidget_iban_validation():
         widget.field = fakefield
         mock_form_submission(req, widget, {'test': iban.replace(' ', '')})
         assert widget.has_error()
-        assert widget.error == 'Invalid IBAN'
+        assert (
+            widget.error
+            == 'You should enter a valid IBAN code, it should have between 14 and 34 characters, for example FR7600001000010000000000101.'
+        )
 
 
 def test_wcsextrastringwidget_time():
@@ -1304,7 +1310,7 @@ def test_wcsextrastringwidget_time():
         widget.field = fakefield
         mock_form_submission(req, widget, {'test': invalid_case})
         assert widget.has_error()
-        assert widget.error == 'Invalid time'
+        assert widget.error == 'You should enter a valid time, between 00:00 and 23:59.'
 
     # and check it gets a special HTML input type
     widget = WcsExtraStringWidget('test', value='foo', required=False)

wcs/locale/fr/LC_MESSAGES/django.po

@@ -6536,92 +6536,117 @@ msgid "forbidden file type"
 msgstr "type de fichier interdit"
 
 #: qommon/form.py
-msgid "must be a valid email address"
-msgstr "doit être une adresse électronique valide"
+msgid "You should enter a valid email address, for example name@example.com."
+msgstr "Veuillez saisir une adresse électronique, par exemple nom@example.com."
 
 #: qommon/form.py
-msgid "invalid address domain"
-msgstr "domaine de l’adresse invalide"
+msgid "Invalid address domain, you should check it and try again."
+msgstr ""
+"Le domaine de l’adresse n’est pas valide. Veuillez vérifier et réessayer."
 
 #: qommon/form.py
 msgid "Digits"
 msgstr "Chiffres"
 
 #: qommon/form.py
-msgid "Only digits are allowed"
-msgstr "Seuls des chiffres sont autorisés"
+msgid "You should enter digits only, for example: 123."
+msgstr "Veuillez ne saisir que des chiffres, par exemple 123."
 
 #: qommon/form.py
 msgid "Phone Number"
 msgstr "Numéro de téléphone"
 
 #: qommon/form.py
-msgid "Invalid phone number"
-msgstr "Numéro de téléphone invalide"
+msgid "You should enter a valid phone number."
+msgstr "Veuillez saisir un numéro de téléphone valide."
 
 #: qommon/form.py
 msgid "Phone Number (France)"
 msgstr "Numéro de téléphone (France)"
 
+#: qommon/form.py
+msgid ""
+"You should enter a valid 10-digits phone number, for example 06 39 98 89 93."
+msgstr ""
+"Veuillez saisir un numéro de téléphone à 10 chiffres, par exemple 06 39 98 "
+"89 93."
+
 #: qommon/form.py
 msgid "Mobile Phone Number (local)"
 msgstr "Numéro de téléphone mobile (local)"
 
+#: qommon/form.py
+msgid "You should enter a valid mobile phone number."
+msgstr "Veuillez saisir un numéro de téléphone mobile valide."
+
 #: qommon/form.py
 msgid "Zip Code (France)"
 msgstr "Code postal (France)"
 
 #: qommon/form.py
-msgid "Invalid zip code"
-msgstr "Code postal invalide"
+msgid "You should enter a 5-digits zip code, for example 75014."
+msgstr "Veuillez saisir un code postal à 5 chiffres, par exemple 75014."
 
 #: qommon/form.py
 msgid "SIREN Code (France)"
 msgstr "Code SIREN (France)"
 
 #: qommon/form.py
-msgid "Invalid SIREN code"
-msgstr "Code SIREN invalide"
+msgid "You should enter a valid 9-digits SIREN code, for example 443170139."
+msgstr "Veuillez saisir un SIREN à 9 chiffres, par exemple 443170139."
 
 #: qommon/form.py
 msgid "SIRET Code (France)"
 msgstr "Code SIRET (France)"
 
 #: qommon/form.py
-msgid "Invalid SIRET code"
-msgstr "Code SIRET invalide"
+msgid ""
+"You should enter a valid 14-digits SIRET code, for example 44317013900036."
+msgstr "Veuillez saisir un SIRET à 14 chiffres, par exemple 44317013900036."
 
 #: qommon/form.py
 msgid "NIR (France)"
 msgstr "Numéro de sécurité sociale / NIR (France)"
 
 #: qommon/form.py
-msgid "Invalid NIR"
-msgstr "Numéro de sécurité sociale invalide"
+msgid ""
+"You should enter a valid 15-digits social security number, for example "
+"294037512000522."
+msgstr ""
+"Veuillez saisir un numéro de sécurité sociale à 15 chiffres, par exemple "
+"294037512000522."
 
 #: qommon/form.py
 msgid "National register number (Belgium)"
 msgstr "Numéro au registre national (Belgique)"
 
 #: qommon/form.py
-msgid "Invalid national register number"
-msgstr "Numéro au registre national invalide"
+msgid ""
+"You should enter a valid 11-digits national register number, for example "
+"85073003328."
+msgstr ""
+"Veuillez saisir un numéro de registre national à 11 chiffres, par exemple "
+"85073003328."
 
 #: qommon/form.py
 msgid "IBAN"
 msgstr "IBAN"
 
 #: qommon/form.py
-msgid "Invalid IBAN"
-msgstr "IBAN invalide"
+msgid ""
+"You should enter a valid IBAN code, it should have between 14 and 34 "
+"characters, for example FR7600001000010000000000101."
+msgstr ""
+"Veuillez saisir un IBAN composé d'au moins 14 et de maximum 34 caractères "
+"alphanumériques, par exemple FR7600001000010000000000101."
 
 #: qommon/form.py
 msgid "Time"
 msgstr "Heure"
 
 #: qommon/form.py
-msgid "Invalid time"
-msgstr "Heure invalide"
+msgid "You should enter a valid time, between 00:00 and 23:59."
+msgstr "Veuillez saisir une heure comprise entre 00:00 et 23:59."
 
 #: qommon/form.py
 msgid "Regular Expression"
@@ -6648,22 +6673,20 @@ msgid "invalid value"
 msgstr "valeur invalide"
 
 #: qommon/form.py
-msgid "invalid date"
-msgstr "date invalide"
+msgid "You should enter a valid date."
+msgstr "Veuillez saisir une date valide"
 
 #: qommon/form.py
 #, python-format
-msgid "invalid date: date must be on or after %s"
-msgstr "date invalide : la date doit être postérieure ou égale à %s"
+msgid "You should enter a valid date. It must be on or after %s."
+msgstr ""
+"Veuillez saisir une date valide. Elle doit être postérieure ou égale à %s."
 
 #: qommon/form.py
 #, python-format
-msgid "invalid date; date must be on or before %s"
-msgstr "date invalide : la date doit être antérieure ou égale à %s"
-
-#: qommon/form.py
-msgid "invalid time"
-msgstr "heure invalide"
+msgid "You should enter a valid date. It must be on or before %s."
+msgstr ""
+"Veuillez saisir une date valide. Elle doit être antérieure ou égale à %s."
 
 #: qommon/form.py
 msgid "invalid regular expression"
@@ -9840,8 +9863,8 @@ msgstr "Valeur vide"
 
 #: testdef.py
 #, python-format
-msgid "%(error)s for field %(label)s: %(details)s."
-msgstr "%(error)s pour le champ %(label)s : %(details)s."
+msgid "%(error)s for field %(label)s: %(details)s"
+msgstr "%(error)s pour le champ %(label)s : %(details)s"
 
 #: users.py
 #, python-format

wcs/qommon/form.py

@@ -1096,7 +1096,7 @@ class EmailWidget(StringWidget):
         )
 
     def get_type_mismatch_message(self):
-        return _('must be a valid email address')
+        return _('You should enter a valid email address, for example name@example.com.')
 
     def _parse(self, request):
         StringWidget._parse(self, request)
@@ -1120,20 +1120,20 @@ class EmailWidget(StringWidget):
                 if [x for x in domain.split('.') if not x]:
                     # empty parts in domain, ex: @example..net, or
                     # @.example.net
-                    self.set_error(_('invalid address domain'))
+                    self.set_error(_('Invalid address domain, you should check it and try again.'))
                     return
                 domain = force_str(domain, 'utf-8', errors='ignore')
                 try:
                     domain = force_str(domain.encode('idna'))
                 except UnicodeError:
-                    self.set_error(_('invalid address domain'))
+                    self.set_error(_('Invalid address domain, you should check it and try again.'))
                     return
                 if domain == 'localhost':
                     return
                 try:
                     dns.resolver.query(force_str(domain), 'MX')
                 except dns.exception.DNSException:
-                    self.set_error(_('invalid address domain'))
+                    self.set_error(_('Invalid address domain, you should check it and try again.'))
 
 
 class OptGroup:
@@ -1224,7 +1224,7 @@ class ValidationWidget(CompositeWidget):
                 {
                     'title': _('Digits'),
                     'regex': r'\d+',
-                    'error_message': _('Only digits are allowed'),
+                    'error_message': _('You should enter digits only, for example: 123.'),
                 },
             ),
             (
@@ -1232,7 +1232,7 @@ class ValidationWidget(CompositeWidget):
                 {
                     'title': _('Phone Number'),
                     'regex': r'\+?[-\(\)\d\.\s/]+',
-                    'error_message': _('Invalid phone number'),
+                    'error_message': _('You should enter a valid phone number.'),
                     'html_input_type': 'tel',
                     'normalize_for_fts': misc.normalize_phone_number_for_fts,
                 },
@@ -1242,7 +1242,9 @@ class ValidationWidget(CompositeWidget):
                 {
                     'title': _('Phone Number (France)'),
                     'function': 'validate_phone_fr',
-                    'error_message': _('Invalid phone number'),
+                    'error_message': _(
+                        'You should enter a valid 10-digits phone number, for example 06 39 98 89 93.'
+                    ),
                     'html_input_type': 'tel',
                     'normalize_for_fts': misc.normalize_phone_number_for_fts,
                 },
@@ -1252,7 +1254,7 @@ class ValidationWidget(CompositeWidget):
                 {
                     'title': _('Mobile Phone Number (local)'),
                     'function': 'validate_mobile_phone_local',
-                    'error_message': _('Invalid phone number'),
+                    'error_message': _('You should enter a valid mobile phone number.'),
                     'html_input_type': 'tel',
                     'normalize_for_fts': misc.normalize_phone_number_for_fts,
                 },
@@ -1262,7 +1264,7 @@ class ValidationWidget(CompositeWidget):
                 {
                     'title': _('Zip Code (France)'),
                     'regex': r'\d{5}',
-                    'error_message': _('Invalid zip code'),
+                    'error_message': _('You should enter a 5-digits zip code, for example 75014.'),
                 },
             ),
             (
@@ -1270,7 +1272,9 @@ class ValidationWidget(CompositeWidget):
                 {
                     'title': _('SIREN Code (France)'),
                     'function': 'validate_siren',
-                    'error_message': _('Invalid SIREN code'),
+                    'error_message': _(
+                        'You should enter a valid 9-digits SIREN code, for example 443170139.'
+                    ),
                     'normalize_function': lambda v: v.upper().strip().replace(' ', ''),
                 },
             ),
@@ -1279,7 +1283,9 @@ class ValidationWidget(CompositeWidget):
                 {
                     'title': _('SIRET Code (France)'),
                     'function': 'validate_siret',
-                    'error_message': _('Invalid SIRET code'),
+                    'error_message': _(
+                        'You should enter a valid 14-digits SIRET code, for example 44317013900036.'
+                    ),
                     'normalize_function': lambda v: v.upper().strip().replace(' ', ''),
                 },
             ),
@@ -1287,7 +1293,10 @@ class ValidationWidget(CompositeWidget):
                 'nir-fr',
                 {
                     'title': _('NIR (France)'),
-                    'error_message': _('Invalid NIR'),
+                    'error_message': _(
+                        'You should enter a valid 15-digits social security number, '
+                        'for example 294037512000522.'
+                    ),
                     'function': 'validate_nir',
                     'normalize_function': lambda v: v.upper().strip().replace(' ', ''),
                 },
@@ -1296,7 +1305,10 @@ class ValidationWidget(CompositeWidget):
                 'nrn-be',
                 {
                     'title': _('National register number (Belgium)'),
-                    'error_message': _('Invalid national register number'),
+                    'error_message': _(
+                        'You should enter a valid 11-digits national register number, '
+                        'for example 85073003328.'
+                    ),
                     'function': 'validate_belgian_nrn',
                 },
             ),
@@ -1305,7 +1317,10 @@ class ValidationWidget(CompositeWidget):
                 {
                     'title': _('IBAN'),
                     'function': 'validate_iban',
-                    'error_message': _('Invalid IBAN'),
+                    'error_message': _(
+                        'You should enter a valid IBAN code, it should have between 14 and 34 characters, '
+                        'for example FR7600001000010000000000101.'
+                    ),
                     'normalize_function': lambda v: v.upper().strip().replace(' ', ''),
                 },
             ),
@@ -1314,7 +1329,7 @@ class ValidationWidget(CompositeWidget):
                 {
                     'title': _('Time'),
                     'regex': r'([01]?[0-9]|2[0-3]):[0-5][0-9]',
-                    'error_message': _('Invalid time'),
+                    'error_message': _('You should enter a valid time, between 00:00 and 23:59.'),
                     'html_input_type': 'time',
                 },
             ),
@@ -1572,15 +1587,15 @@ class DateWidget(StringWidget):
         yield 'range_overflow'
 
     def get_type_mismatch_message(self):
-        return _('invalid date')
+        return _('You should enter a valid date.')
 
     def get_range_underflow_message(self):
-        return _('invalid date: date must be on or after %s') % strftime(
+        return _('You should enter a valid date. It must be on or after %s.') % strftime(
             misc.date_format(), self.minimum_date
         )
 
     def get_range_overflow_message(self):
-        return _('invalid date; date must be on or before %s') % strftime(
+        return _('You should enter a valid date. It must be on or before %s.') % strftime(
             misc.date_format(), self.maximum_date
         )
 
@@ -1599,12 +1614,12 @@ class DateWidget(StringWidget):
                 self.value = None
             elif self.minimum_date and value[:3] < self.minimum_date.timetuple()[:3]:
                 self.set_error(
-                    _('invalid date: date must be on or after %s')
+                    _('You should enter a valid date. It must be on or after %s.')
                     % strftime(misc.date_format(), self.minimum_date)
                 )
             elif self.maximum_date and value[:3] > self.maximum_date.timetuple()[:3]:
                 self.set_error(
-                    _('invalid date; date must be on or before %s')
+                    _('You should enter a valid date. It must be on or before %s.')
                     % strftime(misc.date_format(), self.maximum_date)
                 )
 
@@ -1664,7 +1679,7 @@ class TimeWidget(DateWidget):
                 value = datetime.datetime.strptime(self.value, self.get_format_string())
                 self.value = strftime(self.get_format_string(), value)
             except ValueError:
-                self.set_error(_('invalid time'))
+                self.set_error(_('You should enter a valid time, between 00:00 and 23:59.'))
                 self.value = None
                 return
 

wcs/testdef.py

@@ -307,7 +307,7 @@ class TestDef(sql.TestDef):
 
         error_msg = _('Invalid value "%s"') % value if value else _('Empty value')
         raise TestError(
-            _('%(error)s for field %(label)s: %(details)s.')
+            _('%(error)s for field %(label)s: %(details)s')
             % {
                 'error': error_msg,
                 'label': field_label,