Merge pull request #166 from DEFRA/BAU-yes-no-model

BAU: set up re-usable yes/no button factory

src/server/common/model/answer/yes-no-radio-button/yes-no-radio-button.js

@@ -0,0 +1,34 @@
+import { RadioButtonAnswer } from '../radio-button/radio-button.js'
+/** @import {RadioButtonConfig} from '../radio-button/radio-button.js' */
+
+/**
+ * export @typedef {'yes' | 'no'} YesNoRadioButtonData
+ * @typedef {{ yesOrNo: 'yes' | 'no' }} YesNoRadioButtonPayload
+ */
+
+export const yesNoRadioButtonFactory = ({ emptyOptionText }) => {
+  /** @type {RadioButtonConfig} */
+  const yesNoRadio = {
+    payloadKey: 'yesOrNo',
+    options: {
+      yes: { label: 'Yes' },
+      no: { label: 'No' }
+    },
+    errors: {
+      emptyOptionText
+    }
+  }
+
+  /** @augments {RadioButtonAnswer<YesNoRadioButtonPayload>} */
+  class YesNoAnswer extends RadioButtonAnswer {
+    get config() {
+      return yesNoRadio
+    }
+
+    static get config() {
+      return yesNoRadio
+    }
+  }
+
+  return YesNoAnswer
+}

src/server/common/model/answer/yes-no-radio-button/yes-no-radio-button.test.js

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+import { RadioButtonAnswer } from '../radio-button/radio-button.js'
+import { yesNoRadioButtonFactory } from './yes-no-radio-button.js'
+/** @import {YesNoRadioButtonPayload} from './yes-no-radio-button.js' */
+
+/** @type {YesNoRadioButtonPayload} */
+const payload = {
+  yesOrNo: 'yes'
+}
+const emptyOptionText = 'Select if you are a test case?'
+
+describe('YesNoRadioButton', () => {
+  const YesNoRadioButton = yesNoRadioButtonFactory({ emptyOptionText })
+
+  it('should be an instance of radio button', () => {
+    expect(new YesNoRadioButton(payload)).toBeInstanceOf(RadioButtonAnswer)
+  })
+
+  it('should have same static config & instance config', () => {
+    expect(new YesNoRadioButton(payload).config).toEqual(
+      YesNoRadioButton.config
+    )
+  })
+
+  it('should have the right payload key', () => {
+    expect(YesNoRadioButton.config.payloadKey).toBe('yesOrNo')
+  })
+
+  it('should define the right empty input message', () => {
+    expect(YesNoRadioButton.config.errors.emptyOptionText).toBe(emptyOptionText)
+  })
+
+  it('should have the expected options to select from', () => {
+    expect(Object.keys(YesNoRadioButton.config.options)).toHaveLength(2)
+    expect(YesNoRadioButton.config.options.yes.label).toBe('Yes')
+    expect(YesNoRadioButton.config.options.no.label).toBe('No')
+  })
+})