Add simple unittests for a couple of Formik components.

test/unit/components/formik-input.test.jsx

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+import React from 'react';
+import {mountWithIntl} from '../../helpers/intl-helpers.jsx';
+import FormikInput from '../../../src/components/formik-forms/formik-input.jsx';
+import {Formik} from 'formik';
+
+describe('FormikInput', () => {
+    test('No validation message without an error', () => {
+        const component = mountWithIntl(
+            <Formik>
+                <FormikInput
+                    error=""
+                />
+            </Formik>
+        );
+        expect(component.find('ValidationMessage').exists()).toEqual(false);
+    });
+
+    test('Validation message shown when error given', () => {
+        const component = mountWithIntl(
+            <Formik>
+                <FormikInput
+                    error="There was an error"
+                />
+            </Formik>
+        );
+        expect(component.find('ValidationMessage').exists()).toEqual(true);
+    });
+});

test/unit/components/formik-select.test.jsx

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+import React from 'react';
+import {mountWithIntl} from '../../helpers/intl-helpers.jsx';
+import FormikSelect from '../../../src/components/formik-forms/formik-select.jsx';
+import {Formik} from 'formik';
+import {Field} from 'formik';
+
+describe('FormikSelect', () => {
+    test('No validation message without an error', () => {
+        const component = mountWithIntl(
+            <Formik>
+                <FormikSelect
+                    error=""
+                    options={[]}
+                />
+            </Formik>
+        );
+
+        expect(component.find('ValidationMessage').exists()).toEqual(false);
+        expect(component.find(Field).exists()).toEqual(true);
+    });
+
+    test('Validation message shown when error present', () => {
+        const component = mountWithIntl(
+            <Formik>
+                <FormikSelect
+                    error="uh oh. error"
+                    options={[]}
+                />
+            </Formik>
+        );
+        expect(component.find('ValidationMessage').exists()).toEqual(true);
+        expect(component.find(Field).exists()).toEqual(true);
+    });
+
+    test('list of options passed to formik', () => {
+        const optionList = [
+            {
+                disabled: false,
+                label: 'option1',
+                value: 'value1'
+            },
+            {
+                disabled: false,
+                label: 'option2',
+                value: 'value2'
+            }
+
+        ];
+        const component = mountWithIntl(
+            <Formik>
+                <FormikSelect
+                    error=""
+                    options={optionList}
+                />
+            </Formik>
+        );
+        expect(component.find(Field).exists()).toEqual(true);
+        expect(component.find(Field).prop('children').length).toEqual(2);
+    });
+});