diff --git a/package.json b/package.json
index 42291ce..ded9255 100644
--- a/package.json
+++ b/package.json
@@ -13,7 +13,7 @@
     "format": "npx standard --fix",
     "prepare": "husky",
     "deploy": "./util/deploy-gcloud.sh",
-    "test": "jest"
+    "test": "jest --verbose"
   },
   "dependencies": {
     "next": "14.1.1",
diff --git a/src/components/CV/CV.jsx b/src/components/CV/CV.jsx
index 61ac9fb..aedaafb 100644
--- a/src/components/CV/CV.jsx
+++ b/src/components/CV/CV.jsx
@@ -2,7 +2,7 @@ import React from 'react'
 
 import style from './CV.module.css'
 
-function CV ({
+function Cv ({
   competencies,
   education,
   certifications,
@@ -57,7 +57,7 @@ function CV ({
   )
 }
 
-export default CV
+export default Cv
 
 function CVWorkExperience ({ position, employer, start, end, children }) {
   return (
diff --git a/src/components/CV/CV.module.css b/src/components/CV/Cv.css
similarity index 100%
rename from src/components/CV/CV.module.css
rename to src/components/CV/Cv.css
diff --git a/src/components/CV/Cv.test.jsx b/src/components/CV/Cv.test.jsx
new file mode 100644
index 0000000..a50e5d7
--- /dev/null
+++ b/src/components/CV/Cv.test.jsx
@@ -0,0 +1,63 @@
+/* eslint-env jest */
+import { render } from '@testing-library/react'
+import Cv from './Cv'
+import '@testing-library/jest-dom'
+
+describe('Cv', () => {
+  const props = {
+    competencies: ['Competency 1', 'Competency 2'],
+    education: 'My education history',
+    certifications: ['Certification 1', 'Certification 2'],
+    languages: [{ name: 'English', proficiency: 'Fluent' }],
+    experience: [
+      {
+        employer: 'Employer 1',
+        position: 'Position 1',
+        start: 'Start date 1',
+        end: 'End date 1',
+        desc: 'Description 1'
+      }
+    ]
+  }
+
+  it('renders without crashing', () => {
+    render(<Cv {...props} />)
+  })
+
+  it('renders competencies', () => {
+    const { getByText } = render(<Cv {...props} />)
+    props.competencies.forEach(competency => {
+      expect(getByText(competency)).toBeInTheDocument()
+    })
+  })
+
+  it('renders education', () => {
+    const { getByText } = render(<Cv {...props} />)
+    expect(getByText(props.education)).toBeInTheDocument()
+  })
+
+  it('renders certifications', () => {
+    const { getByText } = render(<Cv {...props} />)
+    props.certifications.forEach(certification => {
+      expect(getByText(certification)).toBeInTheDocument()
+    })
+  })
+
+  it('renders languages', () => {
+    const { getByText } = render(<Cv {...props} />)
+    props.languages.forEach(language => {
+      expect(getByText(`${language.name} - ${language.proficiency}`)).toBeInTheDocument()
+    })
+  })
+
+  it('renders experience', () => {
+    const { getByText } = render(<Cv {...props} />)
+    props.experience.forEach(exp => {
+      expect(getByText(exp.employer)).toBeInTheDocument()
+      expect(getByText(exp.position)).toBeInTheDocument()
+      expect(getByText(exp.start)).toBeInTheDocument()
+      expect(getByText(exp.end)).toBeInTheDocument()
+      expect(getByText(exp.desc)).toBeInTheDocument()
+    })
+  })
+})
diff --git a/src/components/ExternalLink/ExsternalLink.test.jsx b/src/components/ExternalLink/ExsternalLink.test.jsx
new file mode 100644
index 0000000..40c72ac
--- /dev/null
+++ b/src/components/ExternalLink/ExsternalLink.test.jsx
@@ -0,0 +1,28 @@
+/* eslint-env jest */
+import { render, screen } from '@testing-library/react'
+import ExternalLink from './ExternalLink'
+import '@testing-library/jest-dom'
+
+describe('ExternalLink', () => {
+  const props = {
+    href: 'https://example.com',
+    children: 'Test Link'
+  }
+
+  it('renders without crashing', () => {
+    render(<ExternalLink {...props} />)
+  })
+
+  it('renders correct href and rel attributes', () => {
+    render(<ExternalLink {...props} />)
+    const link = screen.getByText(props.children)
+    expect(link).toHaveAttribute('href', props.href)
+    expect(link).toHaveAttribute('rel', 'nofollow noopener')
+    expect(link).toHaveAttribute('target', '_blank')
+  })
+
+  it('renders children correctly', () => {
+    render(<ExternalLink {...props} />)
+    expect(screen.getByText(props.children)).toBeInTheDocument()
+  })
+})
diff --git a/src/components/ExternalLink.jsx b/src/components/ExternalLink/ExternalLink.jsx
similarity index 100%
rename from src/components/ExternalLink.jsx
rename to src/components/ExternalLink/ExternalLink.jsx
diff --git a/src/components/Footer/Footer.test.jsx b/src/components/Footer/Footer.test.jsx
new file mode 100644
index 0000000..822bb13
--- /dev/null
+++ b/src/components/Footer/Footer.test.jsx
@@ -0,0 +1,10 @@
+/* eslint-env jest */
+import { render } from '@testing-library/react'
+import Footer from './Footer'
+import '@testing-library/jest-dom'
+
+describe('Footer', () => {
+  it('renders without crashing', () => {
+    render(<Footer />)
+  })
+})
diff --git a/src/components/Grid/Grid.test.jsx b/src/components/Grid/Grid.test.jsx
new file mode 100644
index 0000000..a769f6d
--- /dev/null
+++ b/src/components/Grid/Grid.test.jsx
@@ -0,0 +1,16 @@
+/* eslint-env jest */
+import { render } from '@testing-library/react'
+import Grid from './Grid'
+import '@testing-library/jest-dom'
+
+describe('Grid', () => {
+  it('renders without crashing', () => {
+    const { container } = render(<Grid />)
+    expect(container.firstChild).toHaveClass('grid')
+  })
+
+  it('renders its children', () => {
+    const { getByText } = render(<Grid><div>Child</div></Grid>)
+    expect(getByText('Child')).toBeInTheDocument()
+  })
+})
diff --git a/src/components/Header/Header.test.jsx b/src/components/Header/Header.test.jsx
new file mode 100644
index 0000000..963d82f
--- /dev/null
+++ b/src/components/Header/Header.test.jsx
@@ -0,0 +1,19 @@
+/* eslint-env jest */
+import { render, screen } from '@testing-library/react'
+import Header from './Header'
+import '@testing-library/jest-dom'
+
+describe('Header', () => {
+  it('renders without crashing', () => {
+    render(
+      <Header />)
+  })
+
+  it('renders correct navigation links', () => {
+    render(<Header />)
+    const links = ['Home', 'Writing', 'Recipes', 'Fun', 'CV']
+    links.forEach(link => {
+      expect(screen.getByText(link)).toBeInTheDocument()
+    })
+  })
+})
diff --git a/src/pages/cv/index.js b/src/pages/cv/index.js
index 4a11954..96cb276 100644
--- a/src/pages/cv/index.js
+++ b/src/pages/cv/index.js
@@ -1,4 +1,4 @@
-import CV from '@/components/CV/CV'
+import Cv from '@/components/Cv/Cv'
 import DefaultLayout from '@/layouts/DefaultLayout/DefaultLayout'
 import React from 'react'
 import yaml from 'js-yaml'
@@ -21,7 +21,7 @@ function CVPage ({
       </section>
       <section>
         {/* eslint-disable-next-line react/jsx-pascal-case */}
-        <CV
+        <Cv
           competencies={competencies}
           education={education}
           certifications={certifications}