Tests: Start implementing tests

Only convertDateToISOString for now

.github/workflows/run_node_tests.yml

@@ -0,0 +1,31 @@
+name: discord bot tests
+
+on:
+  push:
+    branches: [ "*" ]
+
+permissions:
+  contents: read
+
+jobs:
+  discord_bot_tests:
+    permissions:
+      contents: read # for actions/checkout to fetch code
+      security-events: write # for github/codeql-action/upload-sarif to upload SARIF results
+      actions: read # only required for a private repository by github/codeql-action/upload-sarif to get the Action run status
+    runs-on: ubuntu-latest
+    name: discord bot tests
+    steps:
+    - name: Checkout the code
+      uses: actions/checkout@v3
+    - name: install node and npm
+      run: | 
+            "curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.1/install.sh | bash"
+            . ~/.bashrc
+    - name: install packages
+      run: |
+            npm install
+    - name: run tests
+      run: |
+            npm jest 
+