diff --git a/.github/workflows/jest.yml b/.github/workflows/jest.yml
new file mode 100644
index 0000000..dfcf5ed
--- /dev/null
+++ b/.github/workflows/jest.yml
@@ -0,0 +1,61 @@
+name: Jest
+on: push
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup Node.js
+        uses: actions/setup-node@v1
+        with:
+          node-version: "14"
+
+      # Speed up subsequent runs with caching
+      - name: Cache node modules
+        uses: actions/cache@v2
+        env:
+          cache-name: cache-node-modules
+        with:
+          # npm cache files are stored in `~/.npm` on Linux/macOS
+          path: ~/.npm
+          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-build-${{ env.cache-name }}-
+            ${{ runner.os }}-build-
+            ${{ runner.os }}-
+
+      # Install required deps for action
+      - name: Install Dependencies
+        run: npm install
+
+      # Finally, run our tests
+      - name: Run the tests
+        run: npm test
+
+      - name: Tests ✅
+        if: ${{ success() }}
+        run: |
+          curl --request POST \
+          --url https://api.github.com/repos/${{ github.repository }}/statuses/${{ github.sha }} \
+          --header 'authorization: Bearer ${{ secrets.GITHUB_TOKEN }}' \
+          --header 'content-type: application/json' \
+          --data '{
+            "context": "tests",
+            "state": "success",
+            "description": "Tests passed",
+            "target_url": "https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}"
+          }'
+
+      - name: Tests 🚨
+        if: ${{ failure() }}
+        run: |
+          curl --request POST \
+          --url https://api.github.com/repos/${{ github.repository }}/statuses/${{ github.sha }} \
+          --header 'authorization: Bearer ${{ secrets.GITHUB_TOKEN }}' \
+          --header 'content-type: application/json' \
+          --data '{
+            "context": "tests",
+            "state": "failure",
+            "description": "Tests failed",
+            "target_url": "https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}"
+          }'
\ No newline at end of file
diff --git a/.vscode/launch.json b/.vscode/launch.json
new file mode 100644
index 0000000..87018c7
--- /dev/null
+++ b/.vscode/launch.json
@@ -0,0 +1,23 @@
+{
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "Debug Jest Tests",
+      "type": "node",
+      "request": "launch",
+      "runtimeArgs": [
+        "--inspect-brk",
+        "--experimental-vm-modules"
+      ],
+      "program": "${workspaceRoot}/node_modules/.bin/jest",
+      "args": [
+        "--runInBand"
+      ],
+      "skipFiles": [
+        "<node_internals>/**"
+      ],
+      "console": "integratedTerminal",
+      "internalConsoleOptions": "neverOpen",
+    },    
+  ]
+}
\ No newline at end of file
diff --git a/domain/article.js b/domain/article.js
index 46432fe..ab93005 100644
--- a/domain/article.js
+++ b/domain/article.js
@@ -12,6 +12,10 @@ export class Article {
         this.contentFilePath = contentFilePath;
     }
 
+    /**
+     * Resets the cached properties. 
+     * This is useful if the content of an article is changed through one of the setters.
+     */
     clearData(){
         this._html = null;
         this._markdown = null;
@@ -21,6 +25,9 @@ export class Article {
         this._emphasizedTextData = null;
     }
 
+    /**
+     * Returns the path of the folder containg an article
+     */
     get path(){
         if(this._basePath) return this._basePath;
         this._basePath = this._contentFilePath ? path.dirname(this._contentFilePath) : null;
@@ -57,6 +64,9 @@ export class Article {
         this._rawData = data;
     }
 
+    /**
+     * Returns the raw text of an article document.
+     */
     get rawData(){
         if(this._rawData) return this._rawData;
 
diff --git a/index.js b/index.js
index 8fe7e23..f7901f5 100644
--- a/index.js
+++ b/index.js
@@ -9,5 +9,6 @@ import { validateSyntaxSpecifiers } from './validations/code-blocks.js';
 import { validateNestedLists } from './validations/lists.js';
 import { validateBrokenLinks } from './validations/links.js';
 import { ConfigManager } from './logic/config-manager.js';
+import { validateFolderName } from './validations/naming.js';
 
-export { Validator, ArticleManager, validateDuplicatedOpeningHeading, validateHeadingsNesting, validateMaxLength, validateNumberedHeadings, validateOpeningHeadingLevel, validateSpacing, validateTitleCase, validateMetaData, validateRules, validateImageDescriptions, validateImagePaths, validateReferencedAssets, validateSVGFiles, validateSyntaxSpecifiers, validateNestedLists, validateBrokenLinks, ConfigManager  }
\ No newline at end of file
+export { Validator, ArticleManager, validateDuplicatedOpeningHeading, validateHeadingsNesting, validateMaxLength, validateNumberedHeadings, validateOpeningHeadingLevel, validateSpacing, validateTitleCase, validateMetaData, validateRules, validateImageDescriptions, validateImagePaths, validateReferencedAssets, validateSVGFiles, validateSyntaxSpecifiers, validateNestedLists, validateBrokenLinks, ConfigManager, validateFolderName }
\ No newline at end of file
diff --git a/package.json b/package.json
index 5c55eec..d302d0e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "content-lint",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "type": "module",
   "main": "index.js",
   "description": "A node.js infrastructure to validate markdown content.",
diff --git a/test/metadata.test.js b/test/metadata.test.js
index 7467e16..53f5ed8 100644
--- a/test/metadata.test.js
+++ b/test/metadata.test.js
@@ -36,7 +36,7 @@ articleA.rawData = contentA;
 
 const articleB = new Article();
 articleB.rawData = contentB;
-const schemaPath = "./rules/tutorial-metadata-schema.json";
+const schemaPath = "./test/resources/tutorial-metadata-schema.json";
 
 test('Tests if missing/superfluous property is detected', () => {
     const errors = validateMetaData(articleA, schemaPath);
diff --git a/test/naming.test.js b/test/naming.test.js
new file mode 100644
index 0000000..65c4858
--- /dev/null
+++ b/test/naming.test.js
@@ -0,0 +1,20 @@
+import { Article } from '../domain/article.js'
+import { validateFolderName } from '../validations/naming.js';
+
+const articleA = new Article();
+articleA.path = "./demo/this_is_Not_compliant";
+
+const articleB = new Article();
+articleB.path = "./demo/this-should-pass";
+
+test('Tests if non-compliant article folder name is detected', () => {
+    const errors = validateFolderName(articleA);
+    console.log(errors);
+    expect(errors.length).toBe(2);
+});
+
+test('Tests if compliant article folder name passes validation', () => {
+  const errors = validateFolderName(articleB);
+  console.log(errors);
+  expect(errors.length).toBe(0);
+});
\ No newline at end of file
diff --git a/test/resources/tutorial-metadata-schema.json b/test/resources/tutorial-metadata-schema.json
new file mode 100644
index 0000000..c885a6a
--- /dev/null
+++ b/test/resources/tutorial-metadata-schema.json
@@ -0,0 +1,89 @@
+{
+    "$schema": "http://json-schema.org/draft-04/schema#",
+    "type": "object",
+    "properties": {
+      "beta": {
+        "type": "boolean"
+      },
+      "source" : {
+        "type": "string"
+      },
+      "title": {
+        "type": "string",
+        "maxLength": 60
+      },
+      "coverImage": {
+        "type": "string"
+      },
+      "author": {
+        "type": "string"
+      },
+      "tags": {
+        "type": "array",
+        "items": [
+          {
+            "type": "string"
+          }
+        ]
+      },
+      "description": {
+        "type": "string"
+      },
+      "difficulty": {
+        "type": "string"
+      },
+      "hero_position": {
+        "type": "integer"
+      },
+      "featuredImage": {
+        "type": "string"
+      },
+      "software": {
+        "type": "array",
+        "items": [
+          {
+            "type": "string"
+          }
+        ]
+      },
+      "compatible-products":{
+        "type": "array",
+        "items": [
+          {
+            "type": "string"
+          }
+        ]
+      },
+      "hardware": {
+        "type": "array",
+        "items": [
+          {
+            "type": "string"
+          }
+        ]
+      },
+      "libraries": {
+        "type": "array",
+        "items": [
+          {
+            "type": "object",
+            "properties": {
+              "name" : {
+                "type" : "string"
+              },
+              "url" : {
+                "type" : "string"
+              }
+            }
+          }
+        ]
+      }
+    },
+    "required": [
+      "title",
+      "tags",
+      "description",
+      "author"
+    ],
+    "additionalProperties" : false
+  }
diff --git a/validations/naming.js b/validations/naming.js
new file mode 100644
index 0000000..3183c7e
--- /dev/null
+++ b/validations/naming.js
@@ -0,0 +1,30 @@
+import { ValidationIssue } from '../domain/validation-issue.js';
+
+/**
+ * Checks if the foldername contains any discouraged underscores, spaces or upper-case letters.
+ * @param {Article} article 
+ * @returns an array containg the occurred validation errors
+ */
+function validateFolderName(article) {
+    let errorsOccurred = [];
+    const issueType = ValidationIssue.Type.WARNING;
+
+    if(article.path.indexOf("_") != -1){
+        const errorMessage = "Folder path uses discouraged underscore.";
+        errorsOccurred.push(new ValidationIssue(errorMessage, article.path, issueType));
+    }
+
+    if(article.path.indexOf(" ") != -1){
+        const errorMessage = "Folder path uses discouraged blanks.";
+        errorsOccurred.push(new ValidationIssue(errorMessage, article.path, issueType));
+    }
+
+    if(article.path != article.path.toLowerCase()){
+        const errorMessage = "Folder path uses discouraged non-lower case characters.";
+        errorsOccurred.push(new ValidationIssue(errorMessage, article.path, issueType));
+    }
+
+    return errorsOccurred;
+}
+
+export { validateFolderName }
\ No newline at end of file