Chore: Update test database initialization (#81673)

* streamline initialization of test databases, support on-disk sqlite test db

* clean up test databases

* introduce testsuite helper

* use testsuite everywhere we use a test db

* update documentation

* improve error handling

* disable entity integration test until we can figure out locking error

pkg/services/publicdashboards/database/database_test.go

@@ -24,6 +24,7 @@ import (
 	"github.com/grafana/grafana/pkg/services/tag/tagimpl"
 	"github.com/grafana/grafana/pkg/services/user"
 	"github.com/grafana/grafana/pkg/setting"
+	"github.com/grafana/grafana/pkg/tests/testsuite"
 	"github.com/grafana/grafana/pkg/util"
 )
 
@@ -33,6 +34,11 @@ var DefaultTimeSettings = &TimeSettings{}
 // Default time to pass in with seconds rounded
 var DefaultTime = time.Now().UTC().Round(time.Second)
 
+// run tests with cleanup
+func TestMain(m *testing.M) {
+	testsuite.Run(m)
+}
+
 func TestLogPrefix(t *testing.T) {
 	assert.Equal(t, LogPrefix, "publicdashboards.store")
 }