diff --git a/demos/src/Examples/CSSModules/React/index.html b/demos/src/Examples/CSSModules/React/index.html
new file mode 100644
index 000000000..e69de29bb
diff --git a/demos/src/Examples/CSSModules/React/index.jsx b/demos/src/Examples/CSSModules/React/index.jsx
new file mode 100644
index 000000000..7a47a61a3
--- /dev/null
+++ b/demos/src/Examples/CSSModules/React/index.jsx
@@ -0,0 +1,172 @@
+import './styles.scss'
+
+import React from 'react'
+
+import { EditorContent, useEditor } from '@tiptap/react'
+import StarterKit from '@tiptap/starter-kit'
+
+import styles from './index.module.css'
+
+const MenuBar = ({ editor }) => {
+  if (!editor) {
+    return null
+  }
+
+  return (
+    <div className={`toolbar ${styles.toolbar}`}>
+      <button
+        onClick={() => editor.chain().focus().toggleBold().run()}
+        className={editor.isActive('bold') ? 'is-active' : ''}
+      >
+        bold
+      </button>
+      <button
+        onClick={() => editor.chain().focus().toggleItalic().run()}
+        className={editor.isActive('italic') ? 'is-active' : ''}
+      >
+        italic
+      </button>
+      <button
+        onClick={() => editor.chain().focus().toggleStrike().run()}
+        className={editor.isActive('strike') ? 'is-active' : ''}
+      >
+        strike
+      </button>
+      <button
+        onClick={() => editor.chain().focus().toggleCode().run()}
+        className={editor.isActive('code') ? 'is-active' : ''}
+      >
+        code
+      </button>
+      <button onClick={() => editor.chain().focus().unsetAllMarks().run()}>
+        clear marks
+      </button>
+      <button onClick={() => editor.chain().focus().clearNodes().run()}>
+        clear nodes
+      </button>
+      <button
+        onClick={() => editor.chain().focus().setParagraph().run()}
+        className={editor.isActive('paragraph') ? 'is-active' : ''}
+      >
+        paragraph
+      </button>
+      <button
+        onClick={() => editor.chain().focus().toggleHeading({ level: 1 }).run()}
+        className={editor.isActive('heading', { level: 1 }) ? 'is-active' : ''}
+      >
+        h1
+      </button>
+      <button
+        onClick={() => editor.chain().focus().toggleHeading({ level: 2 }).run()}
+        className={editor.isActive('heading', { level: 2 }) ? 'is-active' : ''}
+      >
+        h2
+      </button>
+      <button
+        onClick={() => editor.chain().focus().toggleHeading({ level: 3 }).run()}
+        className={editor.isActive('heading', { level: 3 }) ? 'is-active' : ''}
+      >
+        h3
+      </button>
+      <button
+        onClick={() => editor.chain().focus().toggleHeading({ level: 4 }).run()}
+        className={editor.isActive('heading', { level: 4 }) ? 'is-active' : ''}
+      >
+        h4
+      </button>
+      <button
+        onClick={() => editor.chain().focus().toggleHeading({ level: 5 }).run()}
+        className={editor.isActive('heading', { level: 5 }) ? 'is-active' : ''}
+      >
+        h5
+      </button>
+      <button
+        onClick={() => editor.chain().focus().toggleHeading({ level: 6 }).run()}
+        className={editor.isActive('heading', { level: 6 }) ? 'is-active' : ''}
+      >
+        h6
+      </button>
+      <button
+        onClick={() => editor.chain().focus().toggleBulletList().run()}
+        className={editor.isActive('bulletList') ? 'is-active' : ''}
+      >
+        bullet list
+      </button>
+      <button
+        onClick={() => editor.chain().focus().toggleOrderedList().run()}
+        className={editor.isActive('orderedList') ? 'is-active' : ''}
+      >
+        ordered list
+      </button>
+      <button
+        onClick={() => editor.chain().focus().toggleCodeBlock().run()}
+        className={editor.isActive('codeBlock') ? 'is-active' : ''}
+      >
+        code block
+      </button>
+      <button
+        onClick={() => editor.chain().focus().toggleBlockquote().run()}
+        className={editor.isActive('blockquote') ? 'is-active' : ''}
+      >
+        blockquote
+      </button>
+      <button onClick={() => editor.chain().focus().setHorizontalRule().run()}>
+        horizontal rule
+      </button>
+      <button onClick={() => editor.chain().focus().setHardBreak().run()}>
+        hard break
+      </button>
+      <button onClick={() => editor.chain().focus().undo().run()}>
+        undo
+      </button>
+      <button onClick={() => editor.chain().focus().redo().run()}>
+        redo
+      </button>
+    </div>
+  )
+}
+
+export default () => {
+  const editor = useEditor({
+    extensions: [
+      StarterKit,
+    ],
+    content: `
+      <h2>
+        Hi there,
+      </h2>
+      <p>
+        this is a <em>basic</em> example of <strong>tiptap</strong>. Sure, there are all kind of basic text styles you’d probably expect from a text editor. But wait until you see the lists:
+      </p>
+      <ul>
+        <li>
+          That’s a bullet list with one …
+        </li>
+        <li>
+          … or two list items.
+        </li>
+      </ul>
+      <p>
+        Isn’t that great? And all of that is editable. But wait, there’s more. Let’s try a code block:
+      </p>
+      <pre><code class="language-css">body {
+  display: none;
+}</code></pre>
+      <p>
+        I know, I know, this is impressive. It’s only the tip of the iceberg though. Give it a try and click a little bit around. Don’t forget to check the other examples too.
+      </p>
+      <blockquote>
+        Wow, that’s amazing. Good work, boy! 👏
+        <br />
+        — Mom
+      </blockquote>
+    `,
+  })
+
+  return (
+    <div>
+      <MenuBar editor={editor} />
+      <EditorContent editor={editor} />
+    </div>
+  )
+}
diff --git a/demos/src/Examples/CSSModules/React/index.module.css b/demos/src/Examples/CSSModules/React/index.module.css
new file mode 100644
index 000000000..8936631bb
--- /dev/null
+++ b/demos/src/Examples/CSSModules/React/index.module.css
@@ -0,0 +1,4 @@
+.toolbar {
+  background-color: red;
+  padding: 16px;
+}
diff --git a/demos/src/Examples/CSSModules/React/index.spec.js b/demos/src/Examples/CSSModules/React/index.spec.js
new file mode 100644
index 000000000..b5f939fd5
--- /dev/null
+++ b/demos/src/Examples/CSSModules/React/index.spec.js
@@ -0,0 +1,11 @@
+context('/src/Examples/CSSModules/React/', () => {
+  before(() => {
+    cy.visit('/src/Examples/CSSModules/React/')
+  })
+
+  it('should apply a randomly generated class that adds padding and background color to the toolbar', () => {
+    cy.get('.toolbar').should('exist')
+    cy.get('.toolbar').should('have.css', 'background-color', 'rgb(255, 0, 0)')
+    cy.get('.toolbar').should('have.css', 'padding', '16px')
+  })
+})
diff --git a/demos/src/Examples/CSSModules/React/styles.scss b/demos/src/Examples/CSSModules/React/styles.scss
new file mode 100644
index 000000000..9ba5fc022
--- /dev/null
+++ b/demos/src/Examples/CSSModules/React/styles.scss
@@ -0,0 +1,56 @@
+/* Basic editor styles */
+.ProseMirror {
+  > * + * {
+    margin-top: 0.75em;
+  }
+
+  ul,
+  ol {
+    padding: 0 1rem;
+  }
+
+  h1,
+  h2,
+  h3,
+  h4,
+  h5,
+  h6 {
+    line-height: 1.1;
+  }
+
+  code {
+    background-color: rgba(#616161, 0.1);
+    color: #616161;
+  }
+
+  pre {
+    background: #0D0D0D;
+    color: #FFF;
+    font-family: 'JetBrainsMono', monospace;
+    padding: 0.75rem 1rem;
+    border-radius: 0.5rem;
+
+    code {
+      color: inherit;
+      padding: 0;
+      background: none;
+      font-size: 0.8rem;
+    }
+  }
+
+  img {
+    max-width: 100%;
+    height: auto;
+  }
+
+  blockquote {
+    padding-left: 1rem;
+    border-left: 2px solid rgba(#0D0D0D, 0.1);
+  }
+
+  hr {
+    border: none;
+    border-top: 2px solid rgba(#0D0D0D, 0.1);
+    margin: 2rem 0;
+  }
+}
diff --git a/demos/src/Examples/CSSModules/Vue/index.css b/demos/src/Examples/CSSModules/Vue/index.css
deleted file mode 100644
index adc68fa6a..000000000
--- a/demos/src/Examples/CSSModules/Vue/index.css
+++ /dev/null
@@ -1,3 +0,0 @@
-h1 {
-  color: red;
-}
diff --git a/demos/src/Examples/CSSModules/Vue/index.module.css b/demos/src/Examples/CSSModules/Vue/index.module.css
new file mode 100644
index 000000000..8936631bb
--- /dev/null
+++ b/demos/src/Examples/CSSModules/Vue/index.module.css
@@ -0,0 +1,4 @@
+.toolbar {
+  background-color: red;
+  padding: 16px;
+}
diff --git a/demos/src/Examples/CSSModules/Vue/index.spec.js b/demos/src/Examples/CSSModules/Vue/index.spec.js
index 033d9e405..02b286b08 100644
--- a/demos/src/Examples/CSSModules/Vue/index.spec.js
+++ b/demos/src/Examples/CSSModules/Vue/index.spec.js
@@ -3,15 +3,9 @@ context('/src/Examples/CSSModules/Vue/', () => {
     cy.visit('/src/Examples/CSSModules/Vue/')
   })
 
-  beforeEach(() => {
-    cy.get('.ProseMirror').then(([{ editor }]) => {
-      editor.commands.setContent('<h1>Example Text</h1>')
-      cy.get('.ProseMirror').type('{selectall}')
-    })
-  })
-
-  it('should apply a red headline style to h1', () => {
-    cy.get('.ProseMirror h1').should('exist')
-    cy.get('.ProseMirror h1').should('have.css', 'color', 'rgb(255, 0, 0)')
+  it('should apply a randomly generated class that adds padding and background color to the toolbar', () => {
+    cy.get('.toolbar').should('exist')
+    cy.get('.toolbar').should('have.css', 'background-color', 'rgb(255, 0, 0)')
+    cy.get('.toolbar').should('have.css', 'padding', '16px')
   })
 })
diff --git a/demos/src/Examples/CSSModules/Vue/index.vue b/demos/src/Examples/CSSModules/Vue/index.vue
index 1912dcb3d..6651b02b7 100644
--- a/demos/src/Examples/CSSModules/Vue/index.vue
+++ b/demos/src/Examples/CSSModules/Vue/index.vue
@@ -1,5 +1,5 @@
 <template>
-  <div v-if="editor">
+  <div v-if="editor" class="toolbar" :class="styles.toolbar">
     <button @click="editor.chain().focus().toggleBold().run()" :class="{ 'is-active': editor.isActive('bold') }">
       bold
     </button>
@@ -70,7 +70,9 @@
 <script>
 import { Editor, EditorContent } from '@tiptap/vue-3'
 import StarterKit from '@tiptap/starter-kit'
-import './index.css'
+import styles from './index.module.css'
+
+console.log(styles)
 
 export default {
   components: {
@@ -80,6 +82,7 @@ export default {
   data() {
     return {
       editor: null,
+      styles,
     }
   },
 
@@ -89,7 +92,7 @@ export default {
         StarterKit,
       ],
       content: `
-        <h1>
+        <h1 class="test">
           This is a red headline
         </h1>
         <p>
diff --git a/demos/src/Examples/Community/React/index.spec.js b/demos/src/Examples/Community/React/index.spec.js
index be09f3313..dcf6685bf 100644
--- a/demos/src/Examples/Community/React/index.spec.js
+++ b/demos/src/Examples/Community/React/index.spec.js
@@ -5,7 +5,7 @@ context('/src/Examples/Community/React/', () => {
 
   it('should count the characters correctly', () => {
     // check if count text is "44/280 characters"
-    cy.get('.character-count__text', { timeout: 25000 }).should('have.text', '44/280 characters')
+    cy.get('.character-count__text').should('have.text', '44/280 characters')
 
     // type in .ProseMirror
     cy.get('.ProseMirror').type(' Hello World')
diff --git a/demos/src/Examples/Community/Vue/index.spec.js b/demos/src/Examples/Community/Vue/index.spec.js
index 1dc6389b7..69eaeda65 100644
--- a/demos/src/Examples/Community/Vue/index.spec.js
+++ b/demos/src/Examples/Community/Vue/index.spec.js
@@ -5,7 +5,7 @@ context('/src/Examples/Community/Vue/', () => {
 
   it('should count the characters correctly', () => {
     // check if count text is "44/280 characters"
-    cy.get('.character-count__text', { timeout: 25000 }).should('have.text', '44/280 characters')
+    cy.get('.character-count__text').should('have.text', '44/280 characters')
 
     // type in .ProseMirror
     cy.get('.ProseMirror').type(' Hello World')
diff --git a/demos/src/Examples/CustomDocument/React/index.spec.js b/demos/src/Examples/CustomDocument/React/index.spec.js
new file mode 100644
index 000000000..a48c95a3f
--- /dev/null
+++ b/demos/src/Examples/CustomDocument/React/index.spec.js
@@ -0,0 +1,46 @@
+context('/src/Examples/CustomDocument/React/', () => {
+  beforeEach(() => {
+    cy.visit('/src/Examples/CustomDocument/React/')
+  })
+
+  it('should have a working tiptap instance', () => {
+    cy.get('.ProseMirror').then(([{ editor }]) => {
+      // eslint-disable-next-line
+      expect(editor).to.not.be.null
+    })
+  })
+
+  it('should have a headline and a paragraph', () => {
+    cy.get('.ProseMirror h1').should('exist').should('have.text', 'It’ll always have a heading …')
+    cy.get('.ProseMirror p').should('exist').should('have.text', '… if you pass a custom document. That’s the beauty of having full control over the schema.')
+  })
+
+  it('should have a tooltip for a paragraph on a new line', () => {
+    cy.get('.ProseMirror').type('{enter}')
+    cy.get('.ProseMirror p[data-placeholder]').should('exist').should('have.attr', 'data-placeholder', 'Can you add some further context?')
+  })
+
+  it('should have a headline after clearing the document', () => {
+    cy.get('.ProseMirror').type('{selectall}{backspace}')
+    cy.get('.ProseMirror').focus()
+    cy.get('.ProseMirror h1[data-placeholder]')
+      .should('exist')
+      .should('have.attr', 'class', 'is-empty is-editor-empty')
+      .should('have.attr', 'data-placeholder', 'What’s the title?')
+  })
+
+  it('should have a headline after clearing the document & enter paragraph automatically after adding a headline', () => {
+    cy.get('.ProseMirror').type('{selectall}{backspace}Hello world{enter}')
+    cy.get('.ProseMirror h1')
+      .should('exist')
+      .should('have.text', 'Hello world')
+    cy.get('.ProseMirror p[data-placeholder]')
+      .should('exist').
+      should('have.attr', 'data-placeholder', 'Can you add some further context?')
+
+    cy.get('.ProseMirror').type('This is a paragraph for this test document')
+    cy.get('.ProseMirror p')
+      .should('exist')
+      .should('have.text', 'This is a paragraph for this test document')
+  })
+})
diff --git a/demos/src/Examples/CustomDocument/Vue/index.spec.js b/demos/src/Examples/CustomDocument/Vue/index.spec.js
index 1240629a5..5ca94f4ab 100644
--- a/demos/src/Examples/CustomDocument/Vue/index.spec.js
+++ b/demos/src/Examples/CustomDocument/Vue/index.spec.js
@@ -1,7 +1,48 @@
 context('/src/Examples/CustomDocument/Vue/', () => {
-  before(() => {
+  beforeEach(() => {
     cy.visit('/src/Examples/CustomDocument/Vue/')
   })
 
-  // TODO: Write tests
+  it('should have a working tiptap instance', () => {
+    cy.get('.ProseMirror').then(([{ editor }]) => {
+      // eslint-disable-next-line
+      expect(editor).to.not.be.null
+    })
+  })
+
+  it('should have a headline and a paragraph', () => {
+    cy.get('.ProseMirror h1').should('exist').should('have.text', 'It’ll always have a heading …')
+    cy.get('.ProseMirror p').should('exist').should('have.text', '… if you pass a custom document. That’s the beauty of having full control over the schema.')
+  })
+
+  it('should have a tooltip for a paragraph on a new line', () => {
+    cy.get('.ProseMirror').type('{enter}')
+    cy.get('.ProseMirror p[data-placeholder]').should('exist').should('have.attr', 'data-placeholder', 'Can you add some further context?')
+  })
+
+  it('should have a headline after clearing the document', () => {
+    cy.get('.ProseMirror').type('{selectall}{backspace}')
+    cy.wait(100)
+    cy.get('.ProseMirror').focus()
+    cy.get('.ProseMirror h1[data-placeholder]')
+      .should('exist')
+      .should('have.attr', 'class', 'is-empty is-editor-empty')
+      .should('have.attr', 'data-placeholder', 'What’s the title?')
+  })
+
+  it('should have a headline after clearing the document & enter paragraph automatically after adding a headline', () => {
+    cy.get('.ProseMirror').type('{selectall}{backspace}Hello world{enter}')
+    cy.wait(100)
+    cy.get('.ProseMirror h1')
+      .should('exist')
+      .should('have.text', 'Hello world')
+    cy.get('.ProseMirror p[data-placeholder]')
+      .should('exist')
+      .should('have.attr', 'data-placeholder', 'Can you add some further context?')
+
+    cy.get('.ProseMirror').type('This is a paragraph for this test document')
+    cy.get('.ProseMirror p')
+      .should('exist')
+      .should('have.text', 'This is a paragraph for this test document')
+  })
 })
diff --git a/demos/src/Examples/Default/React/index.spec.js b/demos/src/Examples/Default/React/index.spec.js
index 1989be016..b6702ded9 100644
--- a/demos/src/Examples/Default/React/index.spec.js
+++ b/demos/src/Examples/Default/React/index.spec.js
@@ -19,4 +19,99 @@ context('/src/Examples/Default/React/', () => {
       .find('p')
       .should('contain', 'Example Text')
   })
+
+  const buttonMarks = [
+    { label: 'bold', tag: 'strong' },
+    { label: 'italic', tag: 'em' },
+    { label: 'strike', tag: 's' },
+  ]
+
+  buttonMarks.forEach(m => {
+    it(`should apply ${m.label} when the button is pressed`, () => {
+      cy.get('.ProseMirror').type('{selectall}Hello world')
+      cy.get('button').contains('paragraph').click()
+      cy.get('.ProseMirror').type('{selectall}')
+      cy.get('button').contains(m.label).click()
+      cy.get(`.ProseMirror ${m.tag}`).should('exist').should('have.text', 'Hello world')
+    })
+  })
+
+  it('should clear marks when the button is pressed', () => {
+    cy.get('.ProseMirror').type('{selectall}Hello world')
+    cy.get('button').contains('paragraph').click()
+    cy.get('.ProseMirror').type('{selectall}')
+    cy.get('button').contains('bold').click()
+    cy.get('.ProseMirror strong').should('exist').should('have.text', 'Hello world')
+    cy.get('button').contains('clear marks').click()
+    cy.get('.ProseMirror strong').should('not.exist')
+  })
+
+  it('should clear nodes when the button is pressed', () => {
+    cy.get('.ProseMirror').type('{selectall}Hello world')
+    cy.get('button').contains('bullet list').click()
+    cy.get('.ProseMirror ul').should('exist').should('have.text', 'Hello world')
+    cy.get('.ProseMirror').type('{enter}A second item{enter}A third item{selectall}')
+    cy.get('button').contains('clear nodes').click()
+    cy.get('.ProseMirror ul').should('not.exist')
+    cy.get('.ProseMirror p').should('have.length', 3)
+  })
+
+  const buttonNodes = [
+    { label: 'h1', tag: 'h1' },
+    { label: 'h2', tag: 'h2' },
+    { label: 'h3', tag: 'h3' },
+    { label: 'h4', tag: 'h4' },
+    { label: 'h5', tag: 'h5' },
+    { label: 'h6', tag: 'h6' },
+    { label: 'bullet list', tag: 'ul' },
+    { label: 'ordered list', tag: 'ol' },
+    { label: 'code block', tag: 'pre code' },
+    { label: 'blockquote', tag: 'blockquote' },
+  ]
+
+  buttonNodes.forEach(n => {
+    it(`should set ${n.label} when the button is pressed`, () => {
+      cy.get('button').contains('paragraph').click()
+      cy.get('.ProseMirror').type('{selectall}Hello world{selectall}')
+
+      cy.get('button').contains(n.label).click()
+      cy.get(`.ProseMirror ${n.tag}`).should('exist').should('have.text', 'Hello world')
+      cy.get('button').contains(n.label).click()
+      cy.get(`.ProseMirror ${n.tag}`).should('not.exist')
+    })
+  })
+
+  it('should add a hr when on the same line as a node', () => {
+    cy.get('.ProseMirror').type('{rightArrow}')
+    cy.get('button').contains('horizontal rule').click()
+    cy.get('.ProseMirror hr').should('exist')
+    cy.get('.ProseMirror h1').should('exist')
+  })
+
+  it('should add a hr when on a new line', () => {
+    cy.get('.ProseMirror').type('{rightArrow}{enter}')
+    cy.get('button').contains('horizontal rule').click()
+    cy.get('.ProseMirror hr').should('exist')
+    cy.get('.ProseMirror h1').should('exist')
+  })
+
+  it('should add a br', () => {
+    cy.get('.ProseMirror').type('{rightArrow}')
+    cy.get('button').contains('hard break').click()
+    cy.get('.ProseMirror h1 br').should('exist')
+  })
+
+  it('should undo', () => {
+    cy.get('.ProseMirror').type('{selectall}{backspace}')
+    cy.get('button').contains('undo').click()
+    cy.get('.ProseMirror').should('contain', 'Hello world')
+  })
+
+  it('should redo', () => {
+    cy.get('.ProseMirror').type('{selectall}{backspace}')
+    cy.get('button').contains('undo').click()
+    cy.get('.ProseMirror').should('contain', 'Hello world')
+    cy.get('button').contains('redo').click()
+    cy.get('.ProseMirror').should('not.contain', 'Hello world')
+  })
 })
diff --git a/demos/src/Examples/Default/Vue/index.spec.js b/demos/src/Examples/Default/Vue/index.spec.js
index 949c1f1c0..7a3d59f27 100644
--- a/demos/src/Examples/Default/Vue/index.spec.js
+++ b/demos/src/Examples/Default/Vue/index.spec.js
@@ -19,4 +19,99 @@ context('/src/Examples/Default/Vue/', () => {
       .find('p')
       .should('contain', 'Example Text')
   })
+
+  const buttonMarks = [
+    { label: 'bold', tag: 'strong' },
+    { label: 'italic', tag: 'em' },
+    { label: 'strike', tag: 's' },
+  ]
+
+  buttonMarks.forEach(m => {
+    it(`should apply ${m.label} when the button is pressed`, () => {
+      cy.get('.ProseMirror').type('{selectall}Hello world')
+      cy.get('button').contains('paragraph').click()
+      cy.get('.ProseMirror').type('{selectall}')
+      cy.get('button').contains(m.label).click()
+      cy.get(`.ProseMirror ${m.tag}`).should('exist').should('have.text', 'Hello world')
+    })
+  })
+
+  it('should clear marks when the button is pressed', () => {
+    cy.get('.ProseMirror').type('{selectall}Hello world')
+    cy.get('button').contains('paragraph').click()
+    cy.get('.ProseMirror').type('{selectall}')
+    cy.get('button').contains('bold').click()
+    cy.get('.ProseMirror strong').should('exist').should('have.text', 'Hello world')
+    cy.get('button').contains('clear marks').click()
+    cy.get('.ProseMirror strong').should('not.exist')
+  })
+
+  it('should clear nodes when the button is pressed', () => {
+    cy.get('.ProseMirror').type('{selectall}Hello world')
+    cy.get('button').contains('bullet list').click()
+    cy.get('.ProseMirror ul').should('exist').should('have.text', 'Hello world')
+    cy.get('.ProseMirror').type('{enter}A second item{enter}A third item{selectall}')
+    cy.get('button').contains('clear nodes').click()
+    cy.get('.ProseMirror ul').should('not.exist')
+    cy.get('.ProseMirror p').should('have.length', 3)
+  })
+
+  const buttonNodes = [
+    { label: 'h1', tag: 'h1' },
+    { label: 'h2', tag: 'h2' },
+    { label: 'h3', tag: 'h3' },
+    { label: 'h4', tag: 'h4' },
+    { label: 'h5', tag: 'h5' },
+    { label: 'h6', tag: 'h6' },
+    { label: 'bullet list', tag: 'ul' },
+    { label: 'ordered list', tag: 'ol' },
+    { label: 'code block', tag: 'pre code' },
+    { label: 'blockquote', tag: 'blockquote' },
+  ]
+
+  buttonNodes.forEach(n => {
+    it(`should set ${n.label} when the button is pressed`, () => {
+      cy.get('button').contains('paragraph').click()
+      cy.get('.ProseMirror').type('{selectall}Hello world{selectall}')
+
+      cy.get('button').contains(n.label).click()
+      cy.get(`.ProseMirror ${n.tag}`).should('exist').should('have.text', 'Hello world')
+      cy.get('button').contains(n.label).click()
+      cy.get(`.ProseMirror ${n.tag}`).should('not.exist')
+    })
+  })
+
+  it('should add a hr when on the same line as a node', () => {
+    cy.get('.ProseMirror').type('{rightArrow}')
+    cy.get('button').contains('horizontal rule').click()
+    cy.get('.ProseMirror hr').should('exist')
+    cy.get('.ProseMirror h1').should('exist')
+  })
+
+  it('should add a hr when on a new line', () => {
+    cy.get('.ProseMirror').type('{rightArrow}{enter}')
+    cy.get('button').contains('horizontal rule').click()
+    cy.get('.ProseMirror hr').should('exist')
+    cy.get('.ProseMirror h1').should('exist')
+  })
+
+  it('should add a br', () => {
+    cy.get('.ProseMirror').type('{rightArrow}')
+    cy.get('button').contains('hard break').click()
+    cy.get('.ProseMirror h1 br').should('exist')
+  })
+
+  it('should undo', () => {
+    cy.get('.ProseMirror').type('{selectall}{backspace}')
+    cy.get('button').contains('undo').click()
+    cy.get('.ProseMirror').should('contain', 'Hello world')
+  })
+
+  it('should redo', () => {
+    cy.get('.ProseMirror').type('{selectall}{backspace}')
+    cy.get('button').contains('undo').click()
+    cy.get('.ProseMirror').should('contain', 'Hello world')
+    cy.get('button').contains('redo').click()
+    cy.get('.ProseMirror').should('not.contain', 'Hello world')
+  })
 })