Alerting: Decouple schedule package from store (#55858)

* Separate out fake for scheduler tests

* Delete extracted methods from older fake

pkg/services/ngalert/schedule/testing.go

@@ -1,8 +1,11 @@
 package schedule
 
 import (
+	"context"
 	"testing"
 	"time"
+
+	"github.com/grafana/grafana/pkg/services/ngalert/models"
 )
 
 // waitForTimeChannel blocks the execution until either the channel ch has some data or a timeout of 10 second expires.
@@ -31,3 +34,43 @@ func waitForErrChannel(t *testing.T, ch chan error) error {
 		return nil
 	}
 }
+
+type fakeRulesStore struct {
+	rules map[string]*models.AlertRule
+}
+
+func newFakeRulesStore() *fakeRulesStore {
+	return &fakeRulesStore{
+		rules: map[string]*models.AlertRule{},
+	}
+}
+
+func (f *fakeRulesStore) GetAlertRulesKeysForScheduling(ctx context.Context) ([]models.AlertRuleKeyWithVersion, error) {
+	result := make([]models.AlertRuleKeyWithVersion, 0, len(f.rules))
+	for _, rule := range f.rules {
+		result = append(result, models.AlertRuleKeyWithVersion{
+			Version:      rule.Version,
+			AlertRuleKey: rule.GetKey(),
+		})
+	}
+	return result, nil
+}
+
+func (f *fakeRulesStore) GetAlertRulesForScheduling(ctx context.Context, query *models.GetAlertRulesForSchedulingQuery) error {
+	query.ResultFoldersTitles = map[string]string{}
+	for _, rule := range f.rules {
+		query.ResultRules = append(query.ResultRules, rule)
+		query.ResultFoldersTitles[rule.NamespaceUID] = f.getNamespaceTitle(rule.NamespaceUID)
+	}
+	return nil
+}
+
+func (f *fakeRulesStore) PutRule(_ context.Context, rules ...*models.AlertRule) {
+	for _, r := range rules {
+		f.rules[r.UID] = r
+	}
+}
+
+func (f *fakeRulesStore) getNamespaceTitle(uid string) string {
+	return "TEST-FOLDER-" + uid
+}