diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 00000000000..d989666eef8
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,22 @@
+name: ci
+
+on:
+  pull_request:
+    branches: [main]
+
+jobs:
+  tests:
+    name: Tests
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v6
+
+      - name: Set up Go
+        uses: actions/setup-go@v6
+        with:
+          go-version: "1.26.0"
+
+      - name: Run tests
+        run: go test ./... -cover
diff --git a/README.md b/README.md
index c2bec0368b7..0c983c34f02 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,6 @@
+![CI Badge](https://github.com/wallyflops/learn-cicd-starter/actions/workflows/ci.yml/badge.svg)
+
+
 # learn-cicd-starter (Notely)
 
 This repo contains the starter code for the "Notely" application for the "Learn CICD" course on [Boot.dev](https://boot.dev).
@@ -21,3 +24,5 @@ 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!
+
+James's version of Boot.dev's Notely app.
\ No newline at end of file
diff --git a/internal/auth/get_api_key_test.go b/internal/auth/get_api_key_test.go
new file mode 100644
index 00000000000..663478c15f8
--- /dev/null
+++ b/internal/auth/get_api_key_test.go
@@ -0,0 +1,63 @@
+package auth
+
+import (
+	"net/http"
+	"testing"
+)
+
+func TestGetAPIKey(t *testing.T) {
+	tests := []struct {
+		name    string
+		headers http.Header
+		wantKey string
+		wantErr string
+	}{
+		{
+			name:    "no authorization header",
+			headers: http.Header{},
+			wantErr: ErrNoAuthHeaderIncluded.Error(),
+		},
+		{
+			name: "malformed header - missing ApiKey prefix",
+			headers: http.Header{
+				"Authorization": []string{"Bearer some-token"},
+			},
+			wantErr: "malformed authorization header",
+		},
+		{
+			name: "malformed header - no value",
+			headers: http.Header{
+				"Authorization": []string{"ApiKey"},
+			},
+			wantErr: "malformed authorization header",
+		},
+		{
+			name: "valid api key",
+			headers: http.Header{
+				"Authorization": []string{"ApiKey my-secret-key"},
+			},
+			wantKey: "my-secret-key",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			gotKey, err := GetAPIKey(tt.headers)
+			if tt.wantErr != "" {
+				if err == nil {
+					t.Fatalf("expected error %q, got nil", tt.wantErr)
+				}
+				if err.Error() != tt.wantErr {
+					t.Fatalf("expected error %q, got %q", tt.wantErr, err.Error())
+				}
+				return
+			}
+			if err != nil {
+				t.Fatalf("unexpected error: %v", err)
+			}
+			if gotKey != tt.wantKey {
+				t.Fatalf("expected key %q, got %q", tt.wantKey, gotKey)
+			}
+		})
+	}
+}