diff --git a/web/api/v1/api_test.go b/web/api/v1/api_test.go
index acaff7d4c..00ad825f2 100644
--- a/web/api/v1/api_test.go
+++ b/web/api/v1/api_test.go
@@ -27,6 +27,7 @@ import (
 	"net/url"
 	"os"
 	"reflect"
+	"sort"
 	"strings"
 	"testing"
 	"time"
@@ -539,6 +540,7 @@ func testEndpoints(t *testing.T, api *API, testLabelAPI bool) {
 		query    url.Values
 		response interface{}
 		errType  errorType
+		sorter   func(interface{})
 	}
 
 	var tests = []test{
@@ -1009,6 +1011,12 @@ func testEndpoints(t *testing.T, api *API, testLabelAPI bool) {
 					Unit:   "",
 				},
 			},
+			sorter: func(m interface{}) {
+				sort.Slice(m.([]metricMetadata), func(i, j int) bool {
+					s := m.([]metricMetadata)
+					return s[i].Metric < s[j].Metric
+				})
+			},
 		},
 		// Without a matching metric.
 		{
@@ -1162,6 +1170,11 @@ func testEndpoints(t *testing.T, api *API, testLabelAPI bool) {
 			}
 			res := test.endpoint(req.WithContext(ctx))
 			assertAPIError(t, res.err, test.errType)
+
+			if test.sorter != nil {
+				test.sorter(res.data)
+			}
+
 			assertAPIResponse(t, res.data, test.response)
 		}
 	}
@@ -1185,6 +1198,8 @@ func assertAPIError(t *testing.T, got *apiError, exp errorType) {
 }
 
 func assertAPIResponse(t *testing.T, got interface{}, exp interface{}) {
+	t.Helper()
+
 	if !reflect.DeepEqual(exp, got) {
 		respJSON, err := json.Marshal(got)
 		if err != nil {