Viewing github.com/django/django-stable-4.1.x/tests/forms_tests/widget_tests/test

```
from datetime import date
```

from django.forms import DateField, Form, SelectDateWidget

from django.test import ignore_warnings, override_settings

```
from django.utils import translation
```

from django.utils.dates import MONTHS_AP

from django.utils.deprecation import RemovedInDjango50Warning

```
from .base import WidgetTest
```

class SelectDateWidgetTest(WidgetTest):

```
    maxDiff = None
```
```
    widget = SelectDateWidget(
```
```
        years=(
```
```
            "2007",
```
```
            "2008",
```
```
            "2009",
```
```
            "2010",
```
```
            "2011",
```
```
            "2012",
```
```
            "2013",
```
```
            "2014",
```
```
            "2015",
```
```
            "2016",
```
```
        ),
```
```
    )
```
```
    def test_render_empty(self):
```
```
        self.check_html(
```
```
            self.widget,
```
```
            "mydate",
```
```
            "",
```
```
            html=(
```
```
                """
```

            <select name="mydate_month" id="id_mydate_month">

                <option selected value="">---</option>

                <option value="1">January</option>

                <option value="2">February</option>

                <option value="3">March</option>

                <option value="4">April</option>

                <option value="5">May</option>

                <option value="6">June</option>

                <option value="7">July</option>

                <option value="8">August</option>

                <option value="9">September</option>

                <option value="10">October</option>

                <option value="11">November</option>

                <option value="12">December</option>

```
            </select>
```

            <select name="mydate_day" id="id_mydate_day">

                <option selected value="">---</option>

                <option value="1">1</option>

                <option value="2">2</option>

                <option value="3">3</option>

                <option value="4">4</option>

                <option value="5">5</option>

                <option value="6">6</option>

                <option value="7">7</option>

                <option value="8">8</option>

                <option value="9">9</option>

                <option value="10">10</option>

                <option value="11">11</option>

                <option value="12">12</option>

                <option value="13">13</option>

                <option value="14">14</option>

                <option value="15">15</option>

                <option value="16">16</option>

                <option value="17">17</option>

                <option value="18">18</option>

                <option value="19">19</option>

                <option value="20">20</option>

                <option value="21">21</option>

                <option value="22">22</option>

                <option value="23">23</option>

                <option value="24">24</option>

                <option value="25">25</option>

                <option value="26">26</option>

                <option value="27">27</option>

                <option value="28">28</option>

                <option value="29">29</option>

                <option value="30">30</option>

                <option value="31">31</option>

```
            </select>
```

            <select name="mydate_year" id="id_mydate_year">

                <option selected value="">---</option>

                <option value="2007">2007</option>

                <option value="2008">2008</option>

                <option value="2009">2009</option>

                <option value="2010">2010</option>

                <option value="2011">2011</option>

                <option value="2012">2012</option>

                <option value="2013">2013</option>

                <option value="2014">2014</option>

                <option value="2015">2015</option>

                <option value="2016">2016</option>

```
            </select>
```
```
            """
```
```
            ),
```
```
        )
```
```
    def test_render_none(self):
```
```
        """
```

        Rendering the None or '' values should yield the same output.

```
        """
```
```
        self.assertHTMLEqual(
```

            self.widget.render("mydate", None),

            self.widget.render("mydate", ""),

```
        )
```
```
    def test_render_string(self):
```
```
        self.check_html(
```
```
            self.widget,
```
```
            "mydate",
```
```
            "2010-04-15",
```
```
            html=(
```
```
                """
```

            <select name="mydate_month" id="id_mydate_month">

                <option value="">---</option>

                <option value="1">January</option>

                <option value="2">February</option>

                <option value="3">March</option>

                <option value="4" selected>April</option>

                <option value="5">May</option>

                <option value="6">June</option>

                <option value="7">July</option>

                <option value="8">August</option>

                <option value="9">September</option>

                <option value="10">October</option>

                <option value="11">November</option>

                <option value="12">December</option>

```
            </select>
```

            <select name="mydate_day" id="id_mydate_day">

                <option value="">---</option>

                <option value="1">1</option>

                <option value="2">2</option>

                <option value="3">3</option>

                <option value="4">4</option>

                <option value="5">5</option>

                <option value="6">6</option>

                <option value="7">7</option>

                <option value="8">8</option>

                <option value="9">9</option>

                <option value="10">10</option>

                <option value="11">11</option>

                <option value="12">12</option>

                <option value="13">13</option>

                <option value="14">14</option>

                <option value="15" selected>15</option>

                <option value="16">16</option>

                <option value="17">17</option>

                <option value="18">18</option>

                <option value="19">19</option>

                <option value="20">20</option>

                <option value="21">21</option>

                <option value="22">22</option>

                <option value="23">23</option>

                <option value="24">24</option>

                <option value="25">25</option>

                <option value="26">26</option>

                <option value="27">27</option>

                <option value="28">28</option>

                <option value="29">29</option>

                <option value="30">30</option>

                <option value="31">31</option>

```
            </select>
```

            <select name="mydate_year" id="id_mydate_year">

                <option value="">---</option>

                <option value="2007">2007</option>

                <option value="2008">2008</option>

                <option value="2009">2009</option>

                <option value="2010" selected>2010</option>

                <option value="2011">2011</option>

                <option value="2012">2012</option>

                <option value="2013">2013</option>

                <option value="2014">2014</option>

                <option value="2015">2015</option>

                <option value="2016">2016</option>

```
            </select>
```
```
            """
```
```
            ),
```
```
        )
```
```
    def test_render_datetime(self):
```
```
        self.assertHTMLEqual(
```

            self.widget.render("mydate", date(2010, 4, 15)),

            self.widget.render("mydate", "2010-04-15"),

```
        )
```

    def test_render_invalid_date(self):

```
        """
```

        Invalid dates should still render the failed date.

```
        """
```
```
        self.check_html(
```
```
            self.widget,
```
```
            "mydate",
```
```
            "2010-02-31",
```
```
            html=(
```
```
                """
```

            <select name="mydate_month" id="id_mydate_month">

                <option value="">---</option>

                <option value="1">January</option>

                <option value="2" selected>February</option>

                <option value="3">March</option>

                <option value="4">April</option>

                <option value="5">May</option>

                <option value="6">June</option>

                <option value="7">July</option>

                <option value="8">August</option>

                <option value="9">September</option>

                <option value="10">October</option>

                <option value="11">November</option>

                <option value="12">December</option>

```
            </select>
```

            <select name="mydate_day" id="id_mydate_day">

                <option value="">---</option>

                <option value="1">1</option>

                <option value="2">2</option>

                <option value="3">3</option>

                <option value="4">4</option>

                <option value="5">5</option>

                <option value="6">6</option>

                <option value="7">7</option>

                <option value="8">8</option>

                <option value="9">9</option>

                <option value="10">10</option>

                <option value="11">11</option>

                <option value="12">12</option>

                <option value="13">13</option>

                <option value="14">14</option>

                <option value="15">15</option>

                <option value="16">16</option>

                <option value="17">17</option>

                <option value="18">18</option>

                <option value="19">19</option>

                <option value="20">20</option>

                <option value="21">21</option>

                <option value="22">22</option>

                <option value="23">23</option>

                <option value="24">24</option>

                <option value="25">25</option>

                <option value="26">26</option>

                <option value="27">27</option>

                <option value="28">28</option>

                <option value="29">29</option>

                <option value="30">30</option>

                <option value="31" selected>31</option>

```
            </select>
```

            <select name="mydate_year" id="id_mydate_year">

                <option value="">---</option>

                <option value="2007">2007</option>

                <option value="2008">2008</option>

                <option value="2009">2009</option>

                <option value="2010" selected>2010</option>

                <option value="2011">2011</option>

                <option value="2012">2012</option>

                <option value="2013">2013</option>

                <option value="2014">2014</option>

                <option value="2015">2015</option>

                <option value="2016">2016</option>

```
            </select>
```
```
            """
```
```
            ),
```
```
        )
```
```
    def test_custom_months(self):
```

        widget = SelectDateWidget(months=MONTHS_AP, years=("2013",))

```
        self.check_html(
```
```
            widget,
```
```
            "mydate",
```
```
            "",
```
```
            html=(
```
```
                """
```

            <select name="mydate_month" id="id_mydate_month">

                <option selected value="">---</option>

                <option value="1">Jan.</option>

                <option value="2">Feb.</option>

                <option value="3">March</option>

                <option value="4">April</option>

                <option value="5">May</option>

                <option value="6">June</option>

                <option value="7">July</option>

                <option value="8">Aug.</option>

                <option value="9">Sept.</option>

                <option value="10">Oct.</option>

                <option value="11">Nov.</option>

                <option value="12">Dec.</option>

```
            </select>
```

            <select name="mydate_day" id="id_mydate_day">

                <option selected value="">---</option>

                <option value="1">1</option>

                <option value="2">2</option>

                <option value="3">3</option>

                <option value="4">4</option>

                <option value="5">5</option>

                <option value="6">6</option>

                <option value="7">7</option>

                <option value="8">8</option>

                <option value="9">9</option>

                <option value="10">10</option>

                <option value="11">11</option>

                <option value="12">12</option>

                <option value="13">13</option>

                <option value="14">14</option>

                <option value="15">15</option>

                <option value="16">16</option>

                <option value="17">17</option>

                <option value="18">18</option>

                <option value="19">19</option>

                <option value="20">20</option>

                <option value="21">21</option>

                <option value="22">22</option>

                <option value="23">23</option>

                <option value="24">24</option>

                <option value="25">25</option>

                <option value="26">26</option>

                <option value="27">27</option>

                <option value="28">28</option>

                <option value="29">29</option>

                <option value="30">30</option>

                <option value="31">31</option>

```
            </select>
```

            <select name="mydate_year" id="id_mydate_year">

                <option selected value="">---</option>

                <option value="2013">2013</option>

```
            </select>
```
```
            """
```
```
            ),
```
```
        )
```

    def test_selectdate_required(self):

        class GetNotRequiredDate(Form):

            mydate = DateField(widget=SelectDateWidget, required=False)

```
        class GetRequiredDate(Form):
```

            mydate = DateField(widget=SelectDateWidget, required=True)

        self.assertFalse(GetNotRequiredDate().fields["mydate"].widget.is_required)

        self.assertTrue(GetRequiredDate().fields["mydate"].widget.is_required)

    def test_selectdate_empty_label(self):

        w = SelectDateWidget(years=("2014",), empty_label="empty_label")

        # Rendering the default state with empty_label set as string.

```
        self.assertInHTML(
```

            '<option selected value="">empty_label</option>',

```
            w.render("mydate", ""),
```
```
            count=3,
```
```
        )
```
```
        w = SelectDateWidget(
```

            years=("2014",), empty_label=("empty_year", "empty_month", "empty_day")

```
        )
```

        # Rendering the default state with empty_label tuple.

```
        self.assertHTMLEqual(
```
```
            w.render("mydate", ""),
```
```
            """
```

            <select name="mydate_month" id="id_mydate_month">

                <option selected value="">empty_month</option>

                <option value="1">January</option>

                <option value="2">February</option>

                <option value="3">March</option>

                <option value="4">April</option>

                <option value="5">May</option>

                <option value="6">June</option>

                <option value="7">July</option>

                <option value="8">August</option>

                <option value="9">September</option>

                <option value="10">October</option>

                <option value="11">November</option>

                <option value="12">December</option>

```
            </select>
```

            <select name="mydate_day" id="id_mydate_day">

                <option selected value="">empty_day</option>

                <option value="1">1</option>

                <option value="2">2</option>

                <option value="3">3</option>

                <option value="4">4</option>

                <option value="5">5</option>

                <option value="6">6</option>

                <option value="7">7</option>

                <option value="8">8</option>

                <option value="9">9</option>

                <option value="10">10</option>

                <option value="11">11</option>

                <option value="12">12</option>

                <option value="13">13</option>

                <option value="14">14</option>

                <option value="15">15</option>

                <option value="16">16</option>

                <option value="17">17</option>

                <option value="18">18</option>

                <option value="19">19</option>

                <option value="20">20</option>

                <option value="21">21</option>

                <option value="22">22</option>

                <option value="23">23</option>

                <option value="24">24</option>

                <option value="25">25</option>

                <option value="26">26</option>

                <option value="27">27</option>

                <option value="28">28</option>

                <option value="29">29</option>

                <option value="30">30</option>

                <option value="31">31</option>

```
            </select>
```

            <select name="mydate_year" id="id_mydate_year">

                <option selected value="">empty_year</option>

                <option value="2014">2014</option>

```
            </select>
```
```
            """,
```
```
        )
```
```
        with self.assertRaisesMessage(
```

            ValueError, "empty_label list/tuple must have 3 elements."

```
        ):
```

            SelectDateWidget(years=("2014",), empty_label=("not enough", "values"))

```
    @translation.override("nl")
```
```
    def test_l10n(self):
```
```
        w = SelectDateWidget(
```
```
            years=(
```
```
                "2007",
```
```
                "2008",
```
```
                "2009",
```
```
                "2010",
```
```
                "2011",
```
```
                "2012",
```
```
                "2013",
```
```
                "2014",
```
```
                "2015",
```
```
                "2016",
```
```
            )
```
```
        )
```
```
        self.assertEqual(
```
```
            w.value_from_datadict(
```

                {"date_year": "2010", "date_month": "8", "date_day": "13"}, {}, "date"

```
            ),
```
```
            "13-08-2010",
```
```
        )
```
```
        self.assertHTMLEqual(
```

            w.render("date", "13-08-2010"),

```
            """
```

            <select name="date_day" id="id_date_day">

                <option value="">---</option>

                <option value="1">1</option>

                <option value="2">2</option>

                <option value="3">3</option>

                <option value="4">4</option>

                <option value="5">5</option>

                <option value="6">6</option>

                <option value="7">7</option>

                <option value="8">8</option>

                <option value="9">9</option>

                <option value="10">10</option>

                <option value="11">11</option>

                <option value="12">12</option>

                <option value="13" selected>13</option>

                <option value="14">14</option>

                <option value="15">15</option>

                <option value="16">16</option>

                <option value="17">17</option>

                <option value="18">18</option>

                <option value="19">19</option>

                <option value="20">20</option>

                <option value="21">21</option>

                <option value="22">22</option>

                <option value="23">23</option>

                <option value="24">24</option>

                <option value="25">25</option>

                <option value="26">26</option>

                <option value="27">27</option>

                <option value="28">28</option>

                <option value="29">29</option>

                <option value="30">30</option>

                <option value="31">31</option>

```
            </select>
```

            <select name="date_month" id="id_date_month">

                <option value="">---</option>

                <option value="1">januari</option>

                <option value="2">februari</option>

                <option value="3">maart</option>

                <option value="4">april</option>

                <option value="5">mei</option>

                <option value="6">juni</option>

                <option value="7">juli</option>

                <option value="8" selected>augustus</option>

                <option value="9">september</option>

                <option value="10">oktober</option>

                <option value="11">november</option>

                <option value="12">december</option>

```
            </select>
```

            <select name="date_year" id="id_date_year">

                <option value="">---</option>

                <option value="2007">2007</option>

                <option value="2008">2008</option>

                <option value="2009">2009</option>

                <option value="2010" selected>2010</option>

                <option value="2011">2011</option>

                <option value="2012">2012</option>

                <option value="2013">2013</option>

                <option value="2014">2014</option>

                <option value="2015">2015</option>

                <option value="2016">2016</option>

```
            </select>
```
```
            """,
```
```
        )
```

        # Even with an invalid date, the widget should reflect the entered

```
        # value.
```

        self.assertEqual(w.render("mydate", "2010-02-30").count("selected"), 3)

        # Years before 1900 should work.

        w = SelectDateWidget(years=("1899",))

```
        self.assertEqual(
```
```
            w.value_from_datadict(
```

                {"date_year": "1899", "date_month": "8", "date_day": "13"}, {}, "date"

```
            ),
```
```
            "13-08-1899",
```
```
        )
```

        # And years before 1000 (demonstrating the need for

```
        # sanitize_strftime_format).
```

        w = SelectDateWidget(years=("0001",))

```
        self.assertEqual(
```
```
            w.value_from_datadict(
```

                {"date_year": "0001", "date_month": "8", "date_day": "13"}, {}, "date"

```
            ),
```
```
            "13-08-0001",
```
```
        )
```

    # RemovedInDjango50Warning: When the deprecation ends, remove

    # @ignore_warnings and USE_L10N=False. The test should remain because

    # format-related settings will take precedence over locale-dictated

```
    # formats.
```

    @ignore_warnings(category=RemovedInDjango50Warning)

    @override_settings(USE_L10N=False, DATE_INPUT_FORMATS=["%d.%m.%Y"])

    def test_custom_input_format(self):

        w = SelectDateWidget(years=("0001", "1899", "2009", "2010"))

        for values, expected_value in (

            (("0001", "8", "13"), "13.08.0001"),

            (("1899", "7", "11"), "11.07.1899"),

            (("2009", "3", "7"), "07.03.2009"),

```
        ):
```

            with self.subTest(values=values):

```
                data = {
```

                    "field_%s" % field: value

                    for field, value in zip(("year", "month", "day"), values)

```
                }
```
```
                self.assertEqual(
```

                    w.value_from_datadict(data, {}, "field"), expected_value

```
                )
```
```
                expected_dict = {
```
```
                    field: int(value)
```

                    for field, value in zip(("year", "month", "day"), values)

```
                }
```

                self.assertEqual(w.format_value(expected_value), expected_dict)

```
    def test_format_value(self):
```
```
        valid_formats = [
```
```
            "2000-1-1",
```
```
            "2000-10-15",
```
```
            "2000-01-01",
```
```
            "2000-01-0",
```
```
            "2000-0-01",
```
```
            "2000-0-0",
```
```
            "0-01-01",
```
```
            "0-01-0",
```
```
            "0-0-01",
```
```
            "0-0-0",
```
```
        ]
```
```
        for value in valid_formats:
```

            year, month, day = (int(x) or "" for x in value.split("-"))

            with self.subTest(value=value):

```
                self.assertEqual(
```

                    self.widget.format_value(value),

                    {"day": day, "month": month, "year": year},

```
                )
```
```
        invalid_formats = [
```
```
            "2000-01-001",
```
```
            "2000-001-01",
```
```
            "2-01-01",
```
```
            "20-01-01",
```
```
            "200-01-01",
```
```
            "20000-01-01",
```
```
        ]
```
```
        for value in invalid_formats:
```

            with self.subTest(value=value):

```
                self.assertEqual(
```

                    self.widget.format_value(value),

                    {"day": None, "month": None, "year": None},

```
                )
```

    def test_value_from_datadict(self):

```
        tests = [
```

            (("2000", "12", "1"), "2000-12-01"),

            (("", "12", "1"), "0-12-1"),

            (("2000", "", "1"), "2000-0-1"),

            (("2000", "12", ""), "2000-12-0"),

```
            (("", "", "", ""), None),
```
```
            ((None, "12", "1"), None),
```

            (("2000", None, "1"), None),

            (("2000", "12", None), None),

```
        ]
```
```
        for values, expected in tests:
```

            with self.subTest(values=values):

```
                data = {}
```

                for field_name, value in zip(("year", "month", "day"), values):

                    if value is not None:

                        data["field_%s" % field_name] = value

```
                self.assertEqual(
```

                    self.widget.value_from_datadict(data, {}, "field"), expected

```
                )
```

    def test_value_omitted_from_data(self):

        self.assertIs(self.widget.value_omitted_from_data({}, {}, "field"), True)

```
        self.assertIs(
```

            self.widget.value_omitted_from_data({"field_month": "12"}, {}, "field"),

```
            False,
```
```
        )
```
```
        self.assertIs(
```

            self.widget.value_omitted_from_data({"field_year": "2000"}, {}, "field"),

```
            False,
```
```
        )
```
```
        self.assertIs(
```

            self.widget.value_omitted_from_data({"field_day": "1"}, {}, "field"), False

```
        )
```

        data = {"field_day": "1", "field_month": "12", "field_year": "2000"}

        self.assertIs(self.widget.value_omitted_from_data(data, {}, "field"), False)

    @override_settings(USE_THOUSAND_SEPARATOR=True)

    def test_years_rendered_without_separator(self):

        widget = SelectDateWidget(years=(2007,))

```
        self.check_html(
```
```
            widget,
```
```
            "mydate",
```
```
            "",
```
```
            html=(
```
```
                """
```

            <select name="mydate_month" id="id_mydate_month">

                <option selected value="">---</option>

                <option value="1">January</option>

                <option value="2">February</option>

                <option value="3">March</option>

                <option value="4">April</option>

                <option value="5">May</option>

                <option value="6">June</option>

                <option value="7">July</option>

                <option value="8">August</option>

                <option value="9">September</option>

                <option value="10">October</option>

                <option value="11">November</option>

                <option value="12">December</option>

```
            </select>
```

            <select name="mydate_day" id="id_mydate_day">

                <option selected value="">---</option>

                <option value="1">1</option>

                <option value="2">2</option>

                <option value="3">3</option>

                <option value="4">4</option>

                <option value="5">5</option>

                <option value="6">6</option>

                <option value="7">7</option>

                <option value="8">8</option>

                <option value="9">9</option>

                <option value="10">10</option>

                <option value="11">11</option>

                <option value="12">12</option>

                <option value="13">13</option>

                <option value="14">14</option>

                <option value="15">15</option>

                <option value="16">16</option>

                <option value="17">17</option>

                <option value="18">18</option>

                <option value="19">19</option>

                <option value="20">20</option>

                <option value="21">21</option>

                <option value="22">22</option>

                <option value="23">23</option>

                <option value="24">24</option>

                <option value="25">25</option>

                <option value="26">26</option>

                <option value="27">27</option>

                <option value="28">28</option>

                <option value="29">29</option>

                <option value="30">30</option>

                <option value="31">31</option>

```
            </select>
```

            <select name="mydate_year" id="id_mydate_year">

                <option selected value="">---</option>

                <option value="2007">2007</option>

```
            </select>
```
```
            """
```
```
            ),
```
```
        )
```
```
    def test_fieldset(self):
```
```
        class TestForm(Form):
```

            template_name = "forms_tests/use_fieldset.html"

            field = DateField(widget=self.widget)

```
        form = TestForm()
```

        self.assertIs(self.widget.use_fieldset, True)

```
        self.assertHTMLEqual(
```

            '<div><fieldset><legend for="id_field_month">Field:</legend>'

            '<select name="field_month" required id="id_field_month">'

            '<option value="1">January</option><option value="2">February</option>'

            '<option value="3">March</option><option value="4">April</option>'

            '<option value="5">May</option><option value="6">June</option>'

            '<option value="7">July</option><option value="8">August</option>'

            '<option value="9">September</option><option value="10">October</option>'

            '<option value="11">November</option><option value="12">December</option>'

            '</select><select name="field_day" required id="id_field_day">'

            '<option value="1">1</option><option value="2">2</option>'

            '<option value="3">3</option><option value="4">4</option>'

            '<option value="5">5</option><option value="6">6</option>'

            '<option value="7">7</option><option value="8">8</option>'

            '<option value="9">9</option><option value="10">10</option>'

            '<option value="11">11</option><option value="12">12</option>'

            '<option value="13">13</option><option value="14">14</option>'

            '<option value="15">15</option><option value="16">16</option>'

            '<option value="17">17</option><option value="18">18</option>'

            '<option value="19">19</option><option value="20">20</option>'

            '<option value="21">21</option><option value="22">22</option>'

            '<option value="23">23</option><option value="24">24</option>'

            '<option value="25">25</option><option value="26">26</option>'

            '<option value="27">27</option><option value="28">28</option>'

            '<option value="29">29</option><option value="30">30</option>'

            '<option value="31">31</option></select>'

            '<select name="field_year" required id="id_field_year">'

            '<option value="2007">2007</option><option value="2008">2008</option>'

            '<option value="2009">2009</option><option value="2010">2010</option>'

            '<option value="2011">2011</option><option value="2012">2012</option>'

            '<option value="2013">2013</option><option value="2014">2014</option>'

            '<option value="2015">2015</option><option value="2016">2016</option>'

            "</select></fieldset></div>",

```
            form.render(),
```
```
        )
```