Chore: Fix test to retry fetching provisioned dashboard until is in place (#85408)

Retry fetching provisioned dashboard until is in place

pkg/tests/api/dashboards/api_dashboards_test.go

@@ -11,6 +11,7 @@ import (
 	"os"
 	"path/filepath"
 	"testing"
+	"time"
 
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
@@ -33,6 +34,7 @@ import (
 	"github.com/grafana/grafana/pkg/tests/testinfra"
 	"github.com/grafana/grafana/pkg/tests/testsuite"
 	"github.com/grafana/grafana/pkg/util"
+	"github.com/grafana/grafana/pkg/util/retryer"
 )
 
 func TestMain(m *testing.M) {
@@ -172,6 +174,13 @@ providers:
 
 	t.Run("when provisioned directory is not empty, dashboard should be created", func(t *testing.T) {
 		title := "Grafana Dev Overview & Home"
+		dashboardList := &model.HitList{}
+
+		retry := 0
+		retries := 5
+		// retry until the provisioned dashboard is ready
+		err := retryer.Retry(func() (retryer.RetrySignal, error) {
+			retry++
 			u := fmt.Sprintf("http://admin:admin@%s/api/search?query=%s", grafanaListedAddr, url.QueryEscape(title))
 			// nolint:gosec
 			resp, err := http.Get(u)
@@ -183,10 +192,19 @@ providers:
 			})
 			b, err := io.ReadAll(resp.Body)
 			require.NoError(t, err)
-		dashboardList := &model.HitList{}
 			err = json.Unmarshal(b, dashboardList)
 			require.NoError(t, err)
-		assert.Equal(t, 1, dashboardList.Len())
+			if dashboardList.Len() == 0 {
+				if retry >= retries {
+					return retryer.FuncError, fmt.Errorf("max retries exceeded")
+				}
+				t.Log("Dashboard is not ready", "retry", retry)
+				return retryer.FuncFailure, nil
+			}
+			return retryer.FuncComplete, nil
+		}, retries, time.Millisecond*time.Duration(10), time.Second)
+		require.NoError(t, err)
+
 		var dashboardUID string
 		var dashboardID int64
 		for _, d := range *dashboardList {