[REF] web, *: BS4, use custom BS4 checkbox everywhere

Before this commit, Odoo used checkboxes in three different ways:

- A simple <input type="checkbox"/>, mainly in the frontend. The style
  is browser dependant.

- Same as above but with the BS3, checkbox structure. The style is still
  the same, but the alignement is supposed to be better (which is not
  always the case).

- The Odoo official structure:
	```
	<div class="o_checkbox">
	    <input type="checkbox"/>
	    <span/>
	</div>
	```
  which allows to have a cross-browser checkbox style and correct
  alignements.

The goal after this commit is to only use the BS4 *custom* checkbox
structure to achieve the same goal as our official structure (and
remove that one):

```
<div class="custom-control custom-checkbox">
  <input type="checkbox" class="custom-control-input" id="customCheck1">
  <label class="custom-control-label" for="customCheck1">...</label>
</div>
```

/!\ Labels are now required (use a zero-width space if necessary)

15 files changed, 155 insertions, 130 deletions

diff --git a/addons/web/static/src/js/core/dom.js b/addons/web/static/src/js/core/dom.js
index ba3eebf9bea..d695cf18296 100644
--- a/addons/web/static/src/js/core/dom.js
+++ b/addons/web/static/src/js/core/dom.js
@@ -261,33 +261,41 @@ return {
         return $button;
     },
     /**
-     * Renders a checkbox with standard odoo template. This does not use any xml
-     * template to avoid forcing the frontend part to lazy load a xml file for
-     * each widget which might want to create a simple checkbox.
+     * Renders a checkbox with standard odoo/BS template. This does not use any
+     * xml template to avoid forcing the frontend part to lazy load a xml file
+     * for each widget which might want to create a simple checkbox.
      *
      * @param {Object} [options]
      * @param {Object} [options.prop]
      *        Allows to set the input properties (disabled and checked states).
      * @param {string} [options.text]
      *        The checkbox's associated text. If none is given then a simple
-     *        checkbox without label structure is rendered.
+     *        checkbox is rendered.
      * @returns {jQuery}
      */
     renderCheckbox: function (options) {
-        var $container = $('<div class="o_checkbox"><input type="checkbox"/><span/></div>');
-        if (options && options.prop) {
-            $container.children('input').prop(options.prop);
+        var id = _.uniqueId('checkbox-');
+        var $container = $('<div/>', {
+            class: 'custom-control custom-checkbox',
+        });
+        var $input = $('<input/>', {
+            type: 'checkbox',
+            id: id,
+            class: 'custom-control-input',
+        });
+        var $label = $('<label/>', {
+            for: id,
+            class: 'custom-control-label',
+            text: options && options.text || '',
+        });
+        if (!options || !options.text) {
+            $label.html('&#8203;'); // BS checkboxes need some label content (so
+                                // add a zero-width space when there is no text)
         }
-        if (options && options.text) {
-            $container = $('<label/>').append(
-                $container,
-                $('<span/>', {
-                    class: 'ml8',
-                    text: options.text,
-                })
-            );
+        if (options && options.prop) {
+            $input.prop(options.prop);
         }
-        return $container;
+        return $container.append($input, $label);
     },
     /**
      * Sets the selection range of a given input or textarea
diff --git a/addons/web/static/src/js/fields/abstract_field.js b/addons/web/static/src/js/fields/abstract_field.js
index eab0093ed50..7cf72791be5 100644
--- a/addons/web/static/src/js/fields/abstract_field.js
+++ b/addons/web/static/src/js/fields/abstract_field.js
@@ -304,7 +304,6 @@ var AbstractField = Widget.extend({
         this._reset(record, event);
         return this._render() || $.when();
     },
-
     /**
      * Remove the invalid class on a field
      */
@@ -312,7 +311,15 @@ var AbstractField = Widget.extend({
         this.$el.removeClass('o_field_invalid');
         this.$el.removeAttr('aria-invalid');
     },
-
+    /**
+     * Sets the given id on the focusable element of the field and as 'for'
+     * attribute of potential internal labels.
+     *
+     * @param {string} id
+     */
+    setIDForLabel: function (id) {
+        this.getFocusableElement().attr('id', id);
+    },
     /**
      * add the invalid class on a field
      */
@@ -320,7 +327,6 @@ var AbstractField = Widget.extend({
         this.$el.addClass('o_field_invalid');
         this.$el.attr('aria-invalid', 'true');
     },
-
     /**
      * Update the modifiers with the newest value.
      * Now this.attrs.modifiersValue can be used consistantly even with
diff --git a/addons/web/static/src/js/fields/basic_fields.js b/addons/web/static/src/js/fields/basic_fields.js
index b48ea9022f9..edea04e0e48 100644
--- a/addons/web/static/src/js/fields/basic_fields.js
+++ b/addons/web/static/src/js/fields/basic_fields.js
@@ -701,8 +701,8 @@ var FieldBoolean = AbstractField.extend({
         // The formatValue of boolean fields renders HTML elements similar to
         // the one rendered by the widget itself. Even though the event might
         // have been fired on the non-widget version of this field, we can still
-        // test the presence of its o_checkbox class.
-        if (activated && options && options.event && $(options.event.target).parents('.o_checkbox').length) {
+        // test the presence of its custom class.
+        if (activated && options && options.event && $(options.event.target).closest('.custom-control.custom-checkbox').length) {
             this._setValue(!this.value);  // Toggle the checkbox
         }
         return activated;
@@ -737,6 +737,15 @@ var FieldBoolean = AbstractField.extend({
         }
         return rendered;
     },
+    /**
+     * Associates the 'for' attribute of the internal label.
+     *
+     * @override
+     */
+    setIDForLabel: function (id) {
+        this._super.apply(this, arguments);
+        this.$('.custom-control-label').attr('for', id);
+    },
 
     //--------------------------------------------------------------------------
     // Private
diff --git a/addons/web/static/src/js/fields/relational_fields.js b/addons/web/static/src/js/fields/relational_fields.js
index 73bcc1f1f35..ba83de415e7 100644
--- a/addons/web/static/src/js/fields/relational_fields.js
+++ b/addons/web/static/src/js/fields/relational_fields.js
@@ -1887,7 +1887,7 @@ var FormFieldMany2ManyTags = FieldMany2ManyTags.extend({
             this.$color_picker.dropdown('toggle');
             this.$color_picker.attr("tabindex", 1).focus();
             if (!tagColor) {
-                this.$('.o_checkbox input').prop('checked', true);
+                this.$('.custom-checkbox input').prop('checked', true);
             }
         }
     },
@@ -1909,7 +1909,7 @@ var FormFieldMany2ManyTags = FieldMany2ManyTags.extend({
         var changes = {};
 
         if ($target.is('.o_hide_in_kanban')) {
-            var $checkbox = $('.o_hide_in_kanban .o_checkbox input');
+            var $checkbox = $('.o_hide_in_kanban .custom-checkbox input');
             $checkbox.prop('checked', !$checkbox.prop('checked')); // toggle checkbox
             this.prevColors = this.prevColors ? this.prevColors : {};
             if ($checkbox.is(':checked')) {
diff --git a/addons/web/static/src/js/views/calendar/calendar_renderer.js b/addons/web/static/src/js/views/calendar/calendar_renderer.js
index 4b4050b67cc..ffb4f41ad6b 100644
--- a/addons/web/static/src/js/views/calendar/calendar_renderer.js
+++ b/addons/web/static/src/js/views/calendar/calendar_renderer.js
@@ -98,7 +98,7 @@ var SidebarFilter = Widget.extend(FieldManagerMixin, {
             this.many2one.filter_ids = _.without(_.pluck(this.filters, 'value'), 'all');
         }
         this.$el.on('click', '.o_remove', this._onFilterRemove.bind(this));
-        this.$el.on('click', '.o_checkbox input', this._onFilterActive.bind(this));
+        this.$el.on('click', '.custom-checkbox input', this._onFilterActive.bind(this));
     },
 
     //--------------------------------------------------------------------------
diff --git a/addons/web/static/src/js/views/form/form_renderer.js b/addons/web/static/src/js/views/form/form_renderer.js
index 779c6a48c17..276173c6f9a 100644
--- a/addons/web/static/src/js/views/form/form_renderer.js
+++ b/addons/web/static/src/js/views/form/form_renderer.js
@@ -902,7 +902,7 @@ var FormRenderer = BasicRenderer.extend({
             // enterprise label will be displayed as many times as the field
             // exists on settings.
             var $widgets = self.$('.o_field_widget[name=' + widget.name + ']');
-            var $label = idForLabel ? self.$('label[for=' + idForLabel + ']') : $();
+            var $label = idForLabel ? self.$('.o_form_label[for=' + idForLabel + ']') : $();
             $label = $label.eq($widgets.index(widget.$el));
             if (config.debug || widget.attrs.help || widget.field.help) {
                 self._addFieldTooltip(widget, $label);
@@ -922,7 +922,7 @@ var FormRenderer = BasicRenderer.extend({
      * @param {idForLabel} string
      */
     _setIDForLabel: function (widget, idForLabel) {
-        widget.getFocusableElement().attr('id', idForLabel);
+        widget.setIDForLabel(idForLabel);
     },
 
     //--------------------------------------------------------------------------
diff --git a/addons/web/static/src/scss/list_view.scss b/addons/web/static/src/scss/list_view.scss
index 37093acfe96..ba5cd8a4dab 100644
--- a/addons/web/static/src/scss/list_view.scss
+++ b/addons/web/static/src/scss/list_view.scss
@@ -13,7 +13,7 @@
     // Checkbox in editable list
     // should be clickable and activate the row
     &.o_editable_list .o_data_row:not(.o_selected_row) .o_data_cell {
-        .o_checkbox:not(.o_readonly_modifier) {
+        .custom-checkbox:not(.o_readonly_modifier) {
             pointer-events: none;
         }
     }
diff --git a/addons/web/static/src/scss/ui_extra.scss b/addons/web/static/src/scss/ui_extra.scss
index 0d97c09092e..e69de29bb2d 100644
--- a/addons/web/static/src/scss/ui_extra.scss
+++ b/addons/web/static/src/scss/ui_extra.scss
@@ -1,10 +0,0 @@
-//------------------------------------------------------------------------------
-// Checkboxes
-//------------------------------------------------------------------------------
-div.o_checkbox {
-    display: inline-block;
-    vertical-align: sub;
-    > input + span {
-        display: none;
-    }
-}
diff --git a/addons/web/static/src/xml/base.xml b/addons/web/static/src/xml/base.xml
index 02d976a2fe3..2a07ccaffeb 100644
--- a/addons/web/static/src/xml/base.xml
+++ b/addons/web/static/src/xml/base.xml
@@ -868,10 +868,10 @@
                 <div role="menuitem" class="o_hide_in_kanban"
                      t-att-data-id="tag_id"
                      t-att-data-color="0">
-                    <div class="o_checkbox">
-                        <input type="checkbox"/>
-                        <span/>
-                    </div> Hide in Kanban
+                    <div class="custom-control custom-checkbox">
+                        <input type="checkbox" id="o_hide_in_kanban_checkbox" class="custom-control-input"/>
+                        <label for="o_hide_in_kanban_checkbox" class="custom-control-label">Hide in Kanban</label>
+                    </div>
                 </div>
             </li>
         </ul>
@@ -1283,10 +1283,16 @@
             <input type="text" class="o_input"></input>
         </div>
         <div role="menuitem" class="dropdown-item-text o_save_name">
-            <span><div class="o_checkbox"><input type="checkbox"/><span/></div> Use by default</span>
+            <div class="custom-control custom-checkbox">
+                <input type="checkbox" id="o_fav_menu_use_by_default" class="custom-control-input"/>
+                <label for="o_fav_menu_use_by_default" class="custom-control-label">Use by default</label>
+            </div>
         </div>
         <div role="menuitem" class="dropdown-item-text o_save_name">
-            <span><div class="o_checkbox"><input type="checkbox"/><span/></div> Share with all users </span><span class="fa fa-users" role="img" aria-label="Users" title="Users"/>
+            <div class="custom-control custom-checkbox">
+                <input type="checkbox" id="o_fav_menu_share_all_users" class="custom-control-input"/>
+                <label for="o_fav_menu_share_all_users" class="custom-control-label">Share with all users <span class="fa fa-users" role="img" aria-label="Users" title="Users"/></label>
+            </div>
         </div>
         <div class="dropdown-item-text o_save_name">
             <button role="menuitem" type="button" class="btn btn-primary">Save</button>
@@ -1392,11 +1398,10 @@
     <div aria-atomic="true">
         <div t-foreach="widget.m2mValues" t-as="m2m_value">
             <t t-set="id_for_label" t-value="'o_many2many_checkbox_' + _.uniqueId()"/>
-            <div class="o_checkbox">
-                <input type="checkbox" t-att-id="id_for_label" t-att-data-record-id="JSON.stringify(m2m_value[0])"/>
-                <span/>
+            <div class="custom-control custom-checkbox">
+                <input type="checkbox" t-att-id="id_for_label" class="custom-control-input" t-att-data-record-id="JSON.stringify(m2m_value[0])"/>
+                <label t-att-for="id_for_label" class="custom-control-label o_form_label"><t t-esc="m2m_value[1]"/></label>
             </div>
-            <label t-att-for="id_for_label" class="o_form_label"><t t-esc="m2m_value[1]"/></label>
         </div>
     </div>
 </t>
diff --git a/addons/web/static/src/xml/web_calendar.xml b/addons/web/static/src/xml/web_calendar.xml
index b406e03d760..85b7a168e49 100644
--- a/addons/web/static/src/xml/web_calendar.xml
+++ b/addons/web/static/src/xml/web_calendar.xml
@@ -40,22 +40,29 @@
             <h3 t-if="widget.title"><t t-esc="widget.title"/></h3>
             <div class="o_calendar_filter_items">
                 <div t-foreach="widget.filters" t-as="filter" t-if="filter.display == null || filter.display" class="o_calendar_filter_item" t-att-data-value="filter.value" t-att-data-id="filter.id">
-                    <div class="o_checkbox">
-                        <input type="checkbox" name="selection" t-att-checked="(filter.active ? true : undefined)"/><span/>
+                    <div class="custom-control custom-checkbox">
+                        <input type="checkbox"
+                            t-attf-id="o_calendar_filter_item_#{filter_index}"
+                            name="selection"
+                            class="custom-control-input"
+                            t-att-checked="(filter.active ? true : undefined)"/>
+                        <label t-attf-for="o_calendar_filter_item_#{filter_index}"
+                            class="custom-control-label">
+                            <t t-if="filter.value == 'all'">
+                                <span><i class="fa fa-users fa-fw o_cal_avatar" role="img" aria-label="Avatar" title="Avatar"/></span>
+                            </t>
+                            <t t-if="widget.avatar_field &amp;&amp; (filter.value != 'all')">
+                                <img t-attf-src="/web/image/#{widget.avatar_model}/#{filter.value}/#{widget.avatar_field}" class="o_cal_avatar" alt="Avatar"/>
+                            </t>
+                            <t t-set="color" t-value="widget.getColor(filter.color_index)"/>
+                            <span t-if="typeof color === 'number'" t-attf-class="color_filter o_underline_color_#{widget.getColor(filter.color_index)}"><t t-esc="filter.label"/></span>
+                            <span t-elif="color" t-attf-style="border-bottom: 4px solid #{color};"><t t-esc="filter.label"/></span>
+                            <span t-else=""><t t-esc="filter.label"/></span>
+                        </label>
                     </div>
-                    <t t-if="filter.value == 'all'">
-                        <span><i class="fa fa-users fa-fw o_cal_avatar" role="img" aria-label="Avatar" title="Avatar"/></span>
-                    </t>
-                    <t t-if="widget.avatar_field &amp;&amp; (filter.value != 'all')">
-                        <img t-attf-src="/web/image/#{widget.avatar_model}/#{filter.value}/#{widget.avatar_field}" class="o_cal_avatar" alt="Avatar"/>
-                    </t>
-                    <t t-set="color" t-value="widget.getColor(filter.color_index)"/>
-                    <span t-if="typeof color === 'number'" t-attf-class="color_filter o_underline_color_#{widget.getColor(filter.color_index)}"><t t-esc="filter.label"/></span>
-                    <span t-elif="color" t-attf-style="border-bottom: 4px solid #{color};"><t t-esc="filter.label"/></span>
-                    <span t-else=""><t t-esc="filter.label"/></span>
                     <t t-if="filter.id">
                         <span class="o_remove fa fa-times" title="Remove this favorite from the list" role="img" aria-label="Remove this favorite from the list"/>
-                   </t>
+                    </t>
                 </div>
             </div>
         </div>
diff --git a/addons/web/static/tests/fields/basic_fields_tests.js b/addons/web/static/tests/fields/basic_fields_tests.js
index 7d3108d5b43..b9b9e083328 100644
--- a/addons/web/static/tests/fields/basic_fields_tests.js
+++ b/addons/web/static/tests/fields/basic_fields_tests.js
@@ -233,12 +233,12 @@ QUnit.module('basic_fields', {
             "checkbox should now be unchecked");
 
         // check the checkbox by clicking on label
-        form.$('label').click();
+        form.$('label:first').click();
         assert.strictEqual(form.$('.o_field_boolean input:checked').length, 1,
             "checkbox should now be checked");
 
         // uncheck it back
-        form.$('label').click();
+        form.$('label:first').click();
         assert.strictEqual(form.$('.o_field_boolean input:checked').length, 0,
             "checkbox should now be unchecked");
 
@@ -273,52 +273,52 @@ QUnit.module('basic_fields', {
             arch: '<tree editable="bottom"><field name="bar"/></tree>',
         });
 
-        assert.strictEqual(list.$('tbody td:not(.o_list_record_selector) .o_checkbox input').length, 5,
+        assert.strictEqual(list.$('tbody td:not(.o_list_record_selector) .custom-checkbox input').length, 5,
             "should have 5 checkboxes");
-        assert.strictEqual(list.$('tbody td:not(.o_list_record_selector) .o_checkbox input:checked').length, 4,
+        assert.strictEqual(list.$('tbody td:not(.o_list_record_selector) .custom-checkbox input:checked').length, 4,
             "should have 4 checked input");
 
         // Edit a line
-        var $cell = list.$('tr.o_data_row:has(.o_checkbox input:checked) td:not(.o_list_record_selector)').first();
-        assert.ok($cell.find('.o_checkbox input:checked').prop('disabled'),
+        var $cell = list.$('tr.o_data_row:has(.custom-checkbox input:checked) td:not(.o_list_record_selector)').first();
+        assert.ok($cell.find('.custom-checkbox input:checked').prop('disabled'),
             "input should be disabled in readonly mode");
         $cell.click();
-        assert.ok(!$cell.find('.o_checkbox input:checked').prop('disabled'),
+        assert.ok(!$cell.find('.custom-checkbox input:checked').prop('disabled'),
             "input should not have the disabled property in edit mode");
-        $cell.find('.o_checkbox input:checked').click();
+        $cell.find('.custom-checkbox input:checked').click();
 
         // save
         list.$buttons.find('.o_list_button_save').click();
-        $cell = list.$('tr.o_data_row:has(.o_checkbox input:not(:checked)) td:not(.o_list_record_selector)').first();
-        assert.ok($cell.find('.o_checkbox input:not(:checked)').prop('disabled'),
+        $cell = list.$('tr.o_data_row:has(.custom-checkbox input:not(:checked)) td:not(.o_list_record_selector)').first();
+        assert.ok($cell.find('.custom-checkbox input:not(:checked)').prop('disabled'),
             "input should be disabled again");
-        assert.strictEqual(list.$('tbody td:not(.o_list_record_selector) .o_checkbox input').length, 5,
+        assert.strictEqual(list.$('tbody td:not(.o_list_record_selector) .custom-checkbox input').length, 5,
             "should still have 5 checkboxes");
-        assert.strictEqual(list.$('tbody td:not(.o_list_record_selector) .o_checkbox input:checked').length, 3,
+        assert.strictEqual(list.$('tbody td:not(.o_list_record_selector) .custom-checkbox input:checked').length, 3,
             "should now have only 3 checked input");
 
         // Re-Edit the line and fake-check the checkbox
         $cell.click();
-        $cell.find('.o_checkbox input').click(); // Change the checkbox
-        $cell.find('.o_checkbox input').click(); // Undo the change
+        $cell.find('.custom-checkbox input').click(); // Change the checkbox
+        $cell.find('.custom-checkbox input').click(); // Undo the change
 
         // Save
         list.$buttons.find('.o_list_button_save').click();
-        assert.strictEqual(list.$('tbody td:not(.o_list_record_selector) .o_checkbox input').length, 5,
+        assert.strictEqual(list.$('tbody td:not(.o_list_record_selector) .custom-checkbox input').length, 5,
             "should still have 5 checkboxes");
-        assert.strictEqual(list.$('tbody td:not(.o_list_record_selector) .o_checkbox input:checked').length, 3,
+        assert.strictEqual(list.$('tbody td:not(.o_list_record_selector) .custom-checkbox input:checked').length, 3,
             "should still have only 3 checked input");
 
         // Re-Edit the line to check the checkbox back but this time click on
         // the checkbox directly in readonly mode !
-        $cell = list.$('tr.o_data_row:has(.o_checkbox input:not(:checked)) td:not(.o_list_record_selector)').first();
-        $cell.find('.o_checkbox span').click();
+        $cell = list.$('tr.o_data_row:has(.custom-checkbox input:not(:checked)) td:not(.o_list_record_selector)').first();
+        $cell.find('.custom-checkbox .custom-control-label').click();
 
         // save
         list.$buttons.find('.o_form_button_save').click();
-        assert.strictEqual(list.$('tbody td:not(.o_list_record_selector) .o_checkbox input').length, 5,
+        assert.strictEqual(list.$('tbody td:not(.o_list_record_selector) .custom-checkbox input').length, 5,
             "should still have 5 checkboxes");
-        assert.strictEqual(list.$('tbody td:not(.o_list_record_selector) .o_checkbox input:checked').length, 4,
+        assert.strictEqual(list.$('tbody td:not(.o_list_record_selector) .custom-checkbox input:checked').length, 4,
             "should now have 4 checked input back");
         list.destroy();
     });
@@ -370,8 +370,8 @@ QUnit.module('basic_fields', {
             res_id: 2,
         });
 
-        assert.strictEqual(form.$(".o_checkbox.o_boolean_toggle").length, 1, "Boolean toggle widget applied to boolean field");
-        assert.strictEqual(form.$(".o_checkbox.o_boolean_toggle").find(".slider").length, 1, "Boolean toggle contains slider to toggle");
+        assert.strictEqual(form.$(".custom-checkbox.o_boolean_toggle").length, 1, "Boolean toggle widget applied to boolean field");
+        assert.strictEqual(form.$(".custom-checkbox.o_boolean_toggle").find(".slider").length, 1, "Boolean toggle contains slider to toggle");
         form.destroy();
     });
 
diff --git a/addons/web/static/tests/fields/relational_fields_tests.js b/addons/web/static/tests/fields/relational_fields_tests.js
index 17c22617744..f55a8cb48c1 100644
--- a/addons/web/static/tests/fields/relational_fields_tests.js
+++ b/addons/web/static/tests/fields/relational_fields_tests.js
@@ -10698,23 +10698,23 @@ QUnit.module('relational_fields', {
             }
         });
 
-        assert.notOk(form.$('.o_checkbox input').eq(0).prop('checked'),
+        assert.notOk(form.$('.custom-checkbox input').eq(0).prop('checked'),
             "first checkbox should not be checked");
-        assert.notOk(form.$('.o_checkbox input').eq(1).prop('checked'),
+        assert.notOk(form.$('.custom-checkbox input').eq(1).prop('checked'),
             "second checkbox should not be checked");
-        assert.ok(form.$('.o_checkbox input').eq(2).prop('checked'),
+        assert.ok(form.$('.custom-checkbox input').eq(2).prop('checked'),
             "third checkbox should be checked");
 
-        form.$('.o_checkbox input:checked').click();  // Uncheck default record
-        form.$('.o_checkbox input').first().click();  // Check first record
-        form.$('.o_checkbox input').first().click();  // Uncheck first record
-        form.$('.o_checkbox input').first().click();  // Recheck first record
+        form.$('.custom-checkbox input:checked').click();  // Uncheck default record
+        form.$('.custom-checkbox input').first().click();  // Check first record
+        form.$('.custom-checkbox input').first().click();  // Uncheck first record
+        form.$('.custom-checkbox input').first().click();  // Recheck first record
 
-        assert.ok(form.$('.o_checkbox input').eq(0).prop('checked'),
+        assert.ok(form.$('.custom-checkbox input').eq(0).prop('checked'),
             "first checkbox should be checked");
-        assert.notOk(form.$('.o_checkbox input').eq(1).prop('checked'),
+        assert.notOk(form.$('.custom-checkbox input').eq(1).prop('checked'),
             "second checkbox should not be checked");
-        assert.notOk(form.$('.o_checkbox input').eq(2).prop('checked'),
+        assert.notOk(form.$('.custom-checkbox input').eq(2).prop('checked'),
             "third checkbox should not be checked");
 
         form.$buttons.find('.o_form_button_save').click();
@@ -10745,23 +10745,23 @@ QUnit.module('relational_fields', {
             }
         });
 
-        assert.notOk(form.$('.o_checkbox input').eq(0).prop('checked'),
+        assert.notOk(form.$('.custom-checkbox input').eq(0).prop('checked'),
             "first checkbox should not be checked");
-        assert.notOk(form.$('.o_checkbox input').eq(1).prop('checked'),
+        assert.notOk(form.$('.custom-checkbox input').eq(1).prop('checked'),
             "second checkbox should not be checked");
-        assert.ok(form.$('.o_checkbox input').eq(2).prop('checked'),
+        assert.ok(form.$('.custom-checkbox input').eq(2).prop('checked'),
             "third checkbox should be checked");
 
-        form.$('.o_checkbox input:checked').click();  // Uncheck default record
-        form.$('.o_checkbox input').first().click();  // Check first record
-        form.$('.o_checkbox input').first().click();  // Uncheck first record
-        form.$('.o_checkbox input').first().click();  // Recheck first record
+        form.$('.custom-checkbox input:checked').click();  // Uncheck default record
+        form.$('.custom-checkbox input').first().click();  // Check first record
+        form.$('.custom-checkbox input').first().click();  // Uncheck first record
+        form.$('.custom-checkbox input').first().click();  // Recheck first record
 
-        assert.ok(form.$('.o_checkbox input').eq(0).prop('checked'),
+        assert.ok(form.$('.custom-checkbox input').eq(0).prop('checked'),
             "first checkbox should be checked");
-        assert.notOk(form.$('.o_checkbox input').eq(1).prop('checked'),
+        assert.notOk(form.$('.custom-checkbox input').eq(1).prop('checked'),
             "second checkbox should not be checked");
-        assert.notOk(form.$('.o_checkbox input').eq(2).prop('checked'),
+        assert.notOk(form.$('.custom-checkbox input').eq(2).prop('checked'),
             "third checkbox should not be checked");
 
         form.$buttons.find('.o_form_button_save').click();
@@ -11649,10 +11649,10 @@ QUnit.module('relational_fields', {
         // checkbox 'Hide in Kanban'
         $input = form.$('.o_field_many2manytags button[data-id=13]'); // selects 'red' tag
         $input.click(); // opens the colorpicker dropdown
-        assert.ok(form.$('.o_field_many2manytags button[data-id=13] .o_colorpicker .o_checkbox'), "should have a checkbox in the colorpicker dropdown menu");
+        assert.ok(form.$('.o_field_many2manytags button[data-id=13] .o_colorpicker .custom-checkbox'), "should have a checkbox in the colorpicker dropdown menu");
 
         $input.click();
-        var $checkBox = form.$('.o_field_many2manytags button[data-id=13] .o_colorpicker .o_checkbox input');
+        var $checkBox = form.$('.o_field_many2manytags button[data-id=13] .o_colorpicker .custom-checkbox input');
         assert.notOk($checkBox.is(':checked'), "should have unticked checkbox in colorpicker dropdown menu");
 
         $checkBox.mousedown();
@@ -11660,7 +11660,7 @@ QUnit.module('relational_fields', {
         assert.equal($input.data('color'), "0", "should become transparent when toggling on checkbox");
 
         $input.click();
-        $checkBox = form.$('.o_field_many2manytags button[data-id=13] .o_colorpicker .o_checkbox input'); // refresh
+        $checkBox = form.$('.o_field_many2manytags button[data-id=13] .o_colorpicker .custom-checkbox input'); // refresh
         assert.ok($checkBox.is(':checked'), "should have a ticked checkbox in colorpicker dropdown menu after mousedown");
 
         $checkBox.mousedown();
@@ -11668,7 +11668,7 @@ QUnit.module('relational_fields', {
         assert.equal($input.data('color'), "8", "should revert to old color when toggling off checkbox");
 
         $input.click();
-        $checkBox = form.$('.o_field_many2manytags button[data-id=13] .o_colorpicker .o_checkbox input'); // refresh
+        $checkBox = form.$('.o_field_many2manytags button[data-id=13] .o_colorpicker .custom-checkbox input'); // refresh
         assert.notOk($checkBox.is(':checked'), "should have an unticked checkbox in colorpicker dropdown menu after 2nd click");
 
         // TODO: it would be nice to test the behaviors of the autocomplete dropdown
@@ -12285,24 +12285,24 @@ QUnit.module('relational_fields', {
             res_id: 1,
         });
 
-        assert.strictEqual(form.$('div.o_field_widget div.o_checkbox').length, 2,
+        assert.strictEqual(form.$('div.o_field_widget div.custom-checkbox').length, 2,
             "should have fetched and displayed the 2 values of the many2many");
 
-        assert.ok(form.$('div.o_field_widget div.o_checkbox input').eq(0).prop('checked'),
+        assert.ok(form.$('div.o_field_widget div.custom-checkbox input').eq(0).prop('checked'),
             "first checkbox should be checked");
-        assert.notOk(form.$('div.o_field_widget div.o_checkbox input').eq(1).prop('checked'),
+        assert.notOk(form.$('div.o_field_widget div.custom-checkbox input').eq(1).prop('checked'),
             "second checkbox should not be checked");
 
-        assert.ok(form.$('div.o_field_widget div.o_checkbox input').prop('disabled'),
+        assert.ok(form.$('div.o_field_widget div.custom-checkbox input').prop('disabled'),
             "the checkboxes should be disabled");
 
         form.$buttons.find('.o_form_button_edit').click();
 
-        assert.notOk(form.$('div.o_field_widget div.o_checkbox input').prop('disabled'),
+        assert.notOk(form.$('div.o_field_widget div.custom-checkbox input').prop('disabled'),
             "the checkboxes should not be disabled");
 
         // add a m2m value by clicking on input
-        form.$('div.o_field_widget div.o_checkbox input').eq(1).click();
+        form.$('div.o_field_widget div.custom-checkbox input').eq(1).click();
         form.$buttons.find('.o_form_button_save').click();
         assert.deepEqual(this.data.partner.records[0].timmy, [12, 14],
             "should have added the second element to the many2many");
@@ -12311,13 +12311,13 @@ QUnit.module('relational_fields', {
 
         // remove a m2m value by clinking on label
         form.$buttons.find('.o_form_button_edit').click();
-        form.$('div.o_field_widget div.o_checkbox + label').eq(0).click();
+        form.$('div.o_field_widget div.custom-checkbox > label').eq(0).click();
         form.$buttons.find('.o_form_button_save').click();
         assert.deepEqual(this.data.partner.records[0].timmy, [14],
             "should have removed the first element to the many2many");
-        assert.notOk(form.$('div.o_field_widget div.o_checkbox input').eq(0).prop('checked'),
+        assert.notOk(form.$('div.o_field_widget div.custom-checkbox input').eq(0).prop('checked'),
             "first checkbox should be checked");
-        assert.ok(form.$('div.o_field_widget div.o_checkbox input').eq(1).prop('checked'),
+        assert.ok(form.$('div.o_field_widget div.custom-checkbox input').eq(1).prop('checked'),
             "second checkbox should not be checked");
 
         form.destroy();
@@ -12338,12 +12338,12 @@ QUnit.module('relational_fields', {
             viewOptions: {mode: 'edit'},
         });
 
-        form.$('div.o_field_widget div.o_checkbox input').eq(0).click();
-        form.$('div.o_field_widget div.o_checkbox input').eq(1).click();
+        form.$('div.o_field_widget div.custom-checkbox input').eq(0).click();
+        form.$('div.o_field_widget div.custom-checkbox input').eq(1).click();
         form.$buttons.find('.o_form_button_save').click();
-        assert.notOk(form.$('div.o_field_widget div.o_checkbox input').eq(0).prop('checked'),
+        assert.notOk(form.$('div.o_field_widget div.custom-checkbox input').eq(0).prop('checked'),
             "first checkbox should not be checked");
-        assert.notOk(form.$('div.o_field_widget div.o_checkbox input').eq(1).prop('checked'),
+        assert.notOk(form.$('div.o_field_widget div.custom-checkbox input').eq(1).prop('checked'),
             "second checkbox should not be checked");
 
         form.destroy();
diff --git a/addons/web/static/tests/views/calendar_tests.js b/addons/web/static/tests/views/calendar_tests.js
index a4a8bcbb632..9614350a9f8 100644
--- a/addons/web/static/tests/views/calendar_tests.js
+++ b/addons/web/static/tests/views/calendar_tests.js
@@ -193,7 +193,7 @@ QUnit.module('Views', {
 
             // filters which has no value should show with string "Undefined" and should show at the last
             assert.strictEqual($typeFilter.find('.o_calendar_filter_item:last').data('value'), false, "filters having false value should be displayed at last in filter items");
-            assert.strictEqual($typeFilter.find('.o_calendar_filter_item:last > span').text(), "Undefined", "filters having false value should display 'Undefined' string");
+            assert.strictEqual($typeFilter.find('.o_calendar_filter_item:last span').text(), "Undefined", "filters having false value should display 'Undefined' string");
 
             var $attendeesFilter =  $sidebar.find('.o_calendar_filter:has(h3:contains(attendees))');
             assert.ok($attendeesFilter.length, "should display 'attendees' filter");
@@ -202,9 +202,9 @@ QUnit.module('Views', {
 
             assert.strictEqual(calendar.$('.fc-event').length, 7,
                 "should display 7 events ('event 5' counts for 2 because it spans two weeks and thus generate two fc-event elements)");
-            calendar.$('.o_calendar_filter .o_checkbox input').first().click();  // Disable first filter
+            calendar.$('.o_calendar_filter .custom-checkbox input').first().click();  // Disable first filter
             assert.strictEqual(calendar.$('.fc-event').length, 4, "should now only display 4 event");
-            calendar.$('.o_calendar_filter .o_checkbox input').eq(1).click();  // Disable second filter
+            calendar.$('.o_calendar_filter .custom-checkbox input').eq(1).click();  // Disable second filter
             assert.strictEqual(calendar.$('.fc-event').length, 0, "should not display any event anymore");
 
             // test search bar in filter
diff --git a/addons/web/static/tests/views/form_tests.js b/addons/web/static/tests/views/form_tests.js
index ce8b1f33ef4..1c817e0bfeb 100644
--- a/addons/web/static/tests/views/form_tests.js
+++ b/addons/web/static/tests/views/form_tests.js
@@ -165,7 +165,7 @@ QUnit.module('Views', {
         assert.strictEqual(form.$('div.o_field_one2many table').length, 1,
                         "should render a one2many relation");
 
-        assert.strictEqual(form.$('tbody td:not(.o_list_record_selector) .o_checkbox input:checked').length, 1,
+        assert.strictEqual(form.$('tbody td:not(.o_list_record_selector) .custom-checkbox input:checked').length, 1,
                         "1 checkboxes should be checked");
 
         assert.strictEqual(form.get('title'), "second record",
@@ -2102,10 +2102,10 @@ QUnit.module('Views', {
             res_id: 1,
         });
 
-        assert.strictEqual(form.$("label").length, 2, "should have rendered only two label");
-        assert.strictEqual(form.$("label").first().text(), "Product",
+        assert.strictEqual(form.$("label.o_form_label").length, 2, "should have rendered only two label");
+        assert.strictEqual(form.$("label.o_form_label").first().text(), "Product",
             "one should be the one for the product field");
-        assert.strictEqual(form.$("label").eq(1).text(), "Bar",
+        assert.strictEqual(form.$("label.o_form_label").eq(1).text(), "Bar",
             "one should be the one for the bar field");
 
         assert.strictEqual(form.$('.firstgroup td').first().attr('colspan'), undefined,
@@ -4265,9 +4265,9 @@ QUnit.module('Views', {
 
         assert.strictEqual(form.$('.oe_button_box').children().length, 2,
             "button box should contain two children");
-        assert.strictEqual(form.$('.oe_button_box .oe_stat_button').length, 1,
+        assert.strictEqual(form.$('.oe_button_box > .oe_stat_button').length, 1,
             "button box should only contain one button");
-        assert.strictEqual(form.$('.oe_button_box label').length, 1,
+        assert.strictEqual(form.$('.oe_button_box > label').length, 1,
             "button box should only contain one label");
 
         form.destroy();
@@ -6547,7 +6547,7 @@ QUnit.module('Views', {
                 '</form>',
         });
 
-        assert.strictEqual(form.$el.text(), '{"foo":"My little Foo Value","bar":false}',
+        assert.strictEqual(form.$('.o_widget').text(), '{"foo":"My little Foo Value","bar":false}',
             "widget should have been instantiated");
 
         form.destroy();
diff --git a/addons/web/static/tests/views/list_tests.js b/addons/web/static/tests/views/list_tests.js
index b9732164332..1337736e410 100644
--- a/addons/web/static/tests/views/list_tests.js
+++ b/addons/web/static/tests/views/list_tests.js
@@ -3235,7 +3235,7 @@ QUnit.module('Views', {
         });
 
         assert.verifySteps(['bar', 'res_currency'], "should have done 1 name_get by model in reference values");
-        assert.strictEqual(list.$('tbody td').text(), "Value 1USDEUREUR",
+        assert.strictEqual(list.$('tbody td:not(.o_list_record_selector)').text(), "Value 1USDEUREUR",
             "should have the display_name of the reference");
         list.destroy();
     });