diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000000..933e8b85f6
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,29 @@
+name: ci
+
+on:
+  pull_request:
+    branches: [main]
+
+jobs:
+  tests:
+    name: Tests
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: "1.23.0"
+
+      
+      - name: Run unit tests with coverage
+        run: go test -cover ./...
+
+        
+
+        
+
+
diff --git a/README.md b/README.md
index c2bec0368b..5712e263e1 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,5 @@
 # learn-cicd-starter (Notely)
+![CI Status](https://github.com/adrianalola/learn-cicd-starter/actions/workflows/ci.yml/badge.svg)
 
 This repo contains the starter code for the "Notely" application for the "Learn CICD" course on [Boot.dev](https://boot.dev).
 
@@ -21,3 +22,5 @@ go build -o notely && ./notely
 *This starts the server in non-database mode.* It will serve a simple webpage at `http://localhost:8080`.
 
 You do *not* need to set up a database or any interactivity on the webpage yet. Instructions for that will come later in the course!
+Adriana's version of Boot.dev's Notely app.
+
diff --git a/internal/auth/auth_test.go b/internal/auth/auth_test.go
new file mode 100644
index 0000000000..57e6080ccf
--- /dev/null
+++ b/internal/auth/auth_test.go
@@ -0,0 +1,43 @@
+package auth
+
+import (
+	"net/http"
+	"testing"
+)
+
+func TestGetAPIKey_ValidHeader(t *testing.T) {
+	headers := http.Header{}
+	headers.Set("Authorization", "ApiKey testtoken123")
+
+	key, err := GetAPIKey(headers)
+	if err != nil {
+		t.Fatalf("expected no error, got: %v", err)
+	}
+	if key != "testtoken123" {
+		t.Errorf("expected key to be 'testtoken123', got: %s", 
+key)
+	}
+}
+
+func TestGetAPIKey_MissingHeader(t *testing.T) {
+	headers := http.Header{}
+
+	_, err := GetAPIKey(headers)
+	if err == nil {
+		t.Fatal("expected error for missing header, got nil")
+	}
+	if err != ErrNoAuthHeaderIncluded {
+		t.Errorf("expected ErrNoAuthHeaderIncluded, got: %v", err)
+	}
+}
+
+func TestGetAPIKey_MalformedHeader(t *testing.T) {
+	headers := http.Header{}
+	headers.Set("Authorization", "Bearer sometoken")
+
+	_, err := GetAPIKey(headers)
+	if err == nil {
+		t.Fatal("expected error for malformed header, got nil")
+	}
+}
+