AlertingNG: Unified alerting API mock (#32040)

* AlertingNG: Alertmanager mock API

* AlertingNG: Remove permissions API routes

* Add example POST payloads

* Prometheus and testing mock API

pkg/services/ngalert/api/api_testing_mock.go

@@ -0,0 +1,32 @@
+package api
+
+import (
+	"net/http"
+
+	apimodels "github.com/grafana/alerting-api/pkg/api"
+	"github.com/grafana/grafana/pkg/api/response"
+	"github.com/grafana/grafana/pkg/infra/log"
+	"github.com/grafana/grafana/pkg/models"
+	"github.com/grafana/grafana/pkg/util"
+)
+
+type TestingApiMock struct {
+	log log.Logger
+}
+
+func (mock TestingApiMock) RouteTestReceiverConfig(c *models.ReqContext, body apimodels.ExtendedReceiver) response.Response {
+	mock.log.Info("RouteTestReceiverConfig: ", "body", body)
+	return response.JSON(http.StatusOK, util.DynMap{"message": "success"})
+}
+
+func (mock TestingApiMock) RouteTestRuleConfig(c *models.ReqContext, body apimodels.TestRulePayload) response.Response {
+	mock.log.Info("RouteTestRuleConfig: ", "body", body)
+	result := apimodels.TestRuleResponse{
+		GrafanaAlertInstances: apimodels.AlertInstancesResponse{
+			Instances: [][]byte{
+				[]byte("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"),
+			},
+		},
+	}
+	return response.JSON(http.StatusOK, result)
+}