diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index 257c66f..6f6f769 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -32,7 +32,7 @@ jobs:
     - name: Build
       run: go build -v ./...
     - name: Test
-      run: go test -v ./...
+      run: go test -v -cover ./...
 
 
   
diff --git a/main_test.go b/main_test.go
index 9cc4415..f97e7eb 100644
--- a/main_test.go
+++ b/main_test.go
@@ -311,3 +311,24 @@ func TestRun(t *testing.T) {
 		t.Errorf("Expected 1 file in output dir, got %d", len(files))
 	}
 }
+
+// TestRunFetchError verifies run() returns an error when the
+// initial budget list cannot be fetched.
+func TestRunFetchError(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusInternalServerError)
+	}))
+	defer srv.Close()
+
+	cfg := Config{
+		Token:     "tok",
+		BaseURL:   srv.URL,
+		OutputDir: t.TempDir(),
+		Client:    srv.Client(),
+	}
+
+	_, err := run(cfg)
+	if err == nil {
+		t.Fatal("expected error from run but got nil")
+	}
+}