9 files changed, 395 insertions, 6 deletions
diff --git a/src/components/atoms/forms/select.stories.tsx b/src/components/atoms/forms/select.stories.tsx
index ed487f8..c7bb253 100644
--- a/src/components/atoms/forms/select.stories.tsx
+++ b/src/components/atoms/forms/select.stories.tsx
@@ -11,6 +11,19 @@ export default {
   title: 'Atoms/Forms',
   component: SelectComponent,
   argTypes: {
+    classes: {
+      control: {
+        type: 'text',
+      },
+      description: 'Set additional classes',
+      table: {
+        category: 'Options',
+      },
+      type: {
+        name: 'string',
+        required: false,
+      },
+    },
     disabled: {
       control: {
         type: 'boolean',
diff --git a/src/components/atoms/forms/select.test.tsx b/src/components/atoms/forms/select.test.tsx
new file mode 100644
index 0000000..22efb86
--- /dev/null
+++ b/src/components/atoms/forms/select.test.tsx
@@ -0,0 +1,30 @@
+import { render, screen } from '@test-utils';
+import Select from './select';
+
+const selectOptions = [
+  { id: 'option1', name: 'Option 1', value: 'option1' },
+  { id: 'option2', name: 'Option 2', value: 'option2' },
+  { id: 'option3', name: 'Option 3', value: 'option3' },
+];
+const selected = selectOptions[0];
+
+describe('Select', () => {
+  it('should correctly set default option', () => {
+    render(
+      <Select
+        id="jest-select"
+        name="jest-select"
+        options={selectOptions}
+        value={selected.value}
+        setValue={() => null}
+      />
+    );
+    expect(screen.getByRole('combobox')).toHaveValue(selected.value);
+    expect(screen.queryByRole('combobox')).not.toHaveValue(
+      selectOptions[1].value
+    );
+    expect(screen.queryByRole('combobox')).not.toHaveValue(
+      selectOptions[2].value
+    );
+  });
+});
diff --git a/src/components/atoms/forms/select.tsx b/src/components/atoms/forms/select.tsx
index e434a82..a42dbda 100644
--- a/src/components/atoms/forms/select.tsx
+++ b/src/components/atoms/forms/select.tsx
@@ -1,7 +1,7 @@
 import { ChangeEvent, FC, SetStateAction } from 'react';
 import styles from './forms.module.scss';
 
-type SelectOptions = {
+export type SelectOptions = {
   id: string;
   name: string;
   value: string;
@@ -9,6 +9,10 @@ type SelectOptions = {
 
 export type SelectProps = {
   /**
+   * Set additional classes.
+   */
+  classes?: string;
+  /**
    * Field state. Either enabled (false) or disabled (true).
    */
   disabled?: boolean;
@@ -43,7 +47,12 @@ export type SelectProps = {
  *
  * Render a HTML select element.
  */
-const Select: FC<SelectProps> = ({ options, setValue, ...props }) => {
+const Select: FC<SelectProps> = ({
+  classes = '',
+  options,
+  setValue,
+  ...props
+}) => {
   /**
    * Update select value when an option is selected.
    * @param e - The option change event.
@@ -65,7 +74,7 @@ const Select: FC<SelectProps> = ({ options, setValue, ...props }) => {
 
   return (
     <select
-      className={`${styles.field} ${styles['field--select']}`}
+      className={`${styles.field} ${styles['field--select']} ${classes}`}
       onChange={updateValue}
       {...props}
     >
diff --git a/src/components/molecules/buttons/help-button.stories.tsx b/src/components/molecules/buttons/help-button.stories.tsx
index 2b04a9c..7ed953e 100644
--- a/src/components/molecules/buttons/help-button.stories.tsx
+++ b/src/components/molecules/buttons/help-button.stories.tsx
@@ -5,6 +5,34 @@ import HelpButtonComponent from './help-button';
 export default {
   title: 'Molecules/Buttons',
   component: HelpButtonComponent,
+  argTypes: {
+    classes: {
+      control: {
+        type: 'text',
+      },
+      description: 'Set additional classes to the button.',
+      table: {
+        category: 'Options',
+      },
+      type: {
+        name: 'string',
+        required: false,
+      },
+    },
+    onClick: {
+      control: {
+        type: null,
+      },
+      description: 'A callback function to handle click on button.',
+      table: {
+        category: 'Events',
+      },
+      type: {
+        name: 'function',
+        required: false,
+      },
+    },
+  },
 } as ComponentMeta<typeof HelpButtonComponent>;
 
 const Template: ComponentStory<typeof HelpButtonComponent> = (args) => (
diff --git a/src/components/molecules/buttons/help-button.tsx b/src/components/molecules/buttons/help-button.tsx
index 4945bb4..d933829 100644
--- a/src/components/molecules/buttons/help-button.tsx
+++ b/src/components/molecules/buttons/help-button.tsx
@@ -3,14 +3,19 @@ import { FC } from 'react';
 import { useIntl } from 'react-intl';
 import styles from './help-button.module.scss';
 
-export type HelpButtonProps = Pick<ButtonProps, 'onClick'>;
+export type HelpButtonProps = Pick<ButtonProps, 'onClick'> & {
+  /**
+   * Set additional classes to the button.
+   */
+  classes?: string;
+};
 
 /**
  * HelpButton component
  *
  * Render a button with an interrogation mark icon.
  */
-const HelpButton: FC<HelpButtonProps> = ({ onClick }) => {
+const HelpButton: FC<HelpButtonProps> = ({ classes = '', onClick }) => {
   const intl = useIntl();
   const text = intl.formatMessage({
     defaultMessage: 'Help',
@@ -19,7 +24,11 @@ const HelpButton: FC<HelpButtonProps> = ({ onClick }) => {
   });
 
   return (
-    <Button shape="circle" additionalClasses={styles.btn} onClick={onClick}>
+    <Button
+      shape="circle"
+      additionalClasses={`${styles.btn} ${classes}`}
+      onClick={onClick}
+    >
       <span className="screen-reader-text">{text}</span>
       <span className={styles.icon}>?</span>
     </Button>
diff --git a/src/components/molecules/forms/select-with-tooltip.module.scss b/src/components/molecules/forms/select-with-tooltip.module.scss
new file mode 100644
index 0000000..1f91f74
--- /dev/null
+++ b/src/components/molecules/forms/select-with-tooltip.module.scss
@@ -0,0 +1,52 @@
+@use "@styles/abstracts/functions" as fun;
+@use "@styles/abstracts/mixins" as mix;
+
+.wrapper {
+  display: flex;
+  flex-flow: row wrap;
+  align-items: center;
+  gap: var(--spacing-xs);
+  position: relative;
+}
+
+.label {
+  margin-right: auto;
+}
+
+.select {
+  width: auto;
+
+  @include mix.pointer("fine") {
+    padding: fun.convert-px(3) var(--spacing-xs);
+  }
+}
+
+.btn {
+  &--activated {
+    background: var(--color-primary);
+
+    * {
+      color: var(--color-fg-inverted);
+    }
+  }
+}
+
+.tooltip {
+  position: absolute;
+  top: calc(100% + var(--spacing-xs));
+  right: 0;
+  transform-origin: top right;
+  transition: all 0.75s ease-in-out 0s;
+
+  &--hidden {
+    opacity: 0;
+    visibility: hidden;
+    transform: scale(0);
+  }
+
+  &--visible {
+    opacity: 1;
+    visibility: visible;
+    transform: scale(1);
+  }
+}
diff --git a/src/components/molecules/forms/select-with-tooltip.stories.tsx b/src/components/molecules/forms/select-with-tooltip.stories.tsx
new file mode 100644
index 0000000..d2d36fa
--- /dev/null
+++ b/src/components/molecules/forms/select-with-tooltip.stories.tsx
@@ -0,0 +1,158 @@
+import { ComponentMeta, ComponentStory } from '@storybook/react';
+import { useState } from 'react';
+import { IntlProvider } from 'react-intl';
+import SelectWithTooltipComponent from './select-with-tooltip';
+
+export default {
+  title: 'Molecules/Forms',
+  component: SelectWithTooltipComponent,
+  argTypes: {
+    content: {
+      control: {
+        type: 'text',
+      },
+      description: 'The tooltip body.',
+      type: {
+        name: 'string',
+        required: true,
+      },
+    },
+    title: {
+      control: {
+        type: 'text',
+      },
+      description: 'The tooltip title',
+      type: {
+        name: 'string',
+        required: true,
+      },
+    },
+    label: {
+      control: {
+        type: 'text',
+      },
+      description: 'The select label.',
+      type: {
+        name: 'string',
+        required: true,
+      },
+    },
+    disabled: {
+      control: {
+        type: 'boolean',
+      },
+      description: 'Field state: either enabled or disabled.',
+      table: {
+        category: 'Options',
+        defaultValue: { summary: false },
+      },
+      type: {
+        name: 'boolean',
+        required: false,
+      },
+    },
+    id: {
+      control: {
+        type: 'text',
+      },
+      description: 'Field id.',
+      type: {
+        name: 'string',
+        required: true,
+      },
+    },
+    name: {
+      control: {
+        type: 'text',
+      },
+      description: 'Field name.',
+      type: {
+        name: 'string',
+        required: true,
+      },
+    },
+    options: {
+      control: {
+        type: null,
+      },
+      description: 'Select options.',
+      type: {
+        name: 'array',
+        required: true,
+        value: {
+          name: 'string',
+        },
+      },
+    },
+    required: {
+      control: {
+        type: 'boolean',
+      },
+      description: 'Determine if the field is required.',
+      table: {
+        category: 'Options',
+        defaultValue: { summary: false },
+      },
+      type: {
+        name: 'boolean',
+        required: false,
+      },
+    },
+    setValue: {
+      control: {
+        type: null,
+      },
+      description: 'Callback function to set field value.',
+      table: {
+        category: 'Events',
+      },
+      type: {
+        name: 'function',
+        required: true,
+      },
+    },
+    value: {
+      control: {
+        type: 'text',
+      },
+      description: 'Field value.',
+      type: {
+        name: 'string',
+        required: true,
+      },
+    },
+  },
+} as ComponentMeta<typeof SelectWithTooltipComponent>;
+
+const selectOptions = [
+  { id: 'option1', name: 'Option 1', value: 'option1' },
+  { id: 'option2', name: 'Option 2', value: 'option2' },
+  { id: 'option3', name: 'Option 3', value: 'option3' },
+];
+
+const Template: ComponentStory<typeof SelectWithTooltipComponent> = ({
+  value: _value,
+  setValue: _setValue,
+  ...args
+}) => {
+  const [selected, setSelected] = useState<string>('option1');
+  return (
+    <IntlProvider locale="en">
+      <SelectWithTooltipComponent
+        value={selected}
+        setValue={setSelected}
+        {...args}
+      />
+    </IntlProvider>
+  );
+};
+
+export const SelectWithTooltip = Template.bind({});
+SelectWithTooltip.args = {
+  content: 'Illo voluptatibus quia minima placeat sit nostrum excepturi.',
+  title: 'Possimus quidem dolor',
+  id: 'storybook-select',
+  label: 'Officiis:',
+  name: 'storybook-select',
+  options: selectOptions,
+};
diff --git a/src/components/molecules/forms/select-with-tooltip.test.tsx b/src/components/molecules/forms/select-with-tooltip.test.tsx
new file mode 100644
index 0000000..7a423f5
--- /dev/null
+++ b/src/components/molecules/forms/select-with-tooltip.test.tsx
@@ -0,0 +1,32 @@
+import { render, screen } from '@test-utils';
+import SelectWithTooltip from './select-with-tooltip';
+
+const selectOptions = [
+  { id: 'option1', name: 'Option 1', value: 'option1' },
+  { id: 'option2', name: 'Option 2', value: 'option2' },
+  { id: 'option3', name: 'Option 3', value: 'option3' },
+];
+const selectLabel = 'Jest select';
+const selectValue = selectOptions[0].value;
+const tooltipTitle = 'Jest tooltip';
+const tooltipContent = 'Nesciunt voluptatibus voluptatem omnis at quia libero.';
+
+describe('SelectWithTooltip', () => {
+  it('renders a select', () => {
+    render(
+      <SelectWithTooltip
+        id="jest-select"
+        name="jest-select"
+        label={selectLabel}
+        options={selectOptions}
+        value={selectValue}
+        setValue={() => null}
+        title={tooltipTitle}
+        content={tooltipContent}
+      />
+    );
+    expect(screen.getByRole('combobox', { name: selectLabel })).toHaveValue(
+      selectValue
+    );
+  });
+});
diff --git a/src/components/molecules/forms/select-with-tooltip.tsx b/src/components/molecules/forms/select-with-tooltip.tsx
new file mode 100644
index 0000000..5e48d62
--- /dev/null
+++ b/src/components/molecules/forms/select-with-tooltip.tsx
@@ -0,0 +1,58 @@
+import Select, { SelectProps } from '@components/atoms/forms/select';
+import { FC, useState } from 'react';
+import HelpButton from '../buttons/help-button';
+import Tooltip, { TooltipProps } from '../modals/tooltip';
+import styles from './select-with-tooltip.module.scss';
+
+export type SelectWithTooltipProps = SelectProps &
+  Pick<TooltipProps, 'title' | 'content'> & {
+    /**
+     * The select label.
+     */
+    label: string;
+    /**
+     * Set additional classes to the tooltip wrapper.
+     */
+    tooltipClasses?: string;
+  };
+
+/**
+ * SelectWithTooltip component
+ *
+ * Render a select with a button to display a tooltip about options.
+ */
+const SelectWithTooltip: FC<SelectWithTooltipProps> = ({
+  title,
+  content,
+  id,
+  label,
+  tooltipClasses = '',
+  ...props
+}) => {
+  const [isTooltipOpened, setIsTooltipOpened] = useState<boolean>(false);
+  const buttonModifier = isTooltipOpened ? styles['btn--activated'] : '';
+  const tooltipModifier = isTooltipOpened
+    ? styles['tooltip--visible']
+    : styles['tooltip--hidden'];
+
+  return (
+    <div className={styles.wrapper}>
+      <label htmlFor={id} className={styles.label}>
+        {label}
+      </label>
+      <Select id={id} {...props} classes={styles.select} />
+      <HelpButton
+        onClick={() => setIsTooltipOpened(!isTooltipOpened)}
+        classes={buttonModifier}
+      />
+      <Tooltip
+        title={title}
+        content={content}
+        icon="?"
+        classes={`${styles.tooltip} ${tooltipModifier} ${tooltipClasses}`}
+      />
+    </div>
+  );
+};
+
+export default SelectWithTooltip;