test: add delete sequence button test

src/components/Buttons/DeleteSequenceButton.test.js

@@ -0,0 +1,21 @@
+import React from 'react'
+import { shallow, mount } from 'enzyme'
+import DeleteSequenceButton from './DeleteSequenceButton'
+
+describe('<DeleteSequenceButton>', () => {
+    it('renders without errors', () => {
+        shallow(<DeleteSequenceButton name="name" onSuccess={() => {}} />)
+    })
+
+    it('shows the modal when button is clicked', () => {
+        const wrapper = mount(
+            <DeleteSequenceButton name="name" onSuccess={() => {}} />
+        )
+
+        expect(wrapper.find('DeleteSequenceModal')).toHaveLength(0)
+
+        wrapper.find('button').simulate('click')
+
+        expect(wrapper.find('DeleteSequenceModal')).toHaveLength(1)
+    })
+})