Restructured code, moved all modules into internal

For now all modules are considered internal. This might change later

internal/backends/backends_test.go

@@ -0,0 +1,109 @@
+/*
+Copyright © 2023 Philipp Wolfer <phw@uploadedlobster.com>
+
+This file is part of Scotty.
+
+Scotty is free software: you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation, either version 3 of the License, or (at your option) any later version.
+
+Scotty is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+Scotty. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+package backends_test
+
+import (
+	"reflect"
+	"testing"
+
+	"github.com/spf13/viper"
+	"github.com/stretchr/testify/assert"
+	"go.uploadedlobster.com/scotty/internal/backends"
+	"go.uploadedlobster.com/scotty/internal/backends/dump"
+	"go.uploadedlobster.com/scotty/internal/backends/funkwhale"
+	"go.uploadedlobster.com/scotty/internal/backends/jspf"
+	"go.uploadedlobster.com/scotty/internal/backends/listenbrainz"
+	"go.uploadedlobster.com/scotty/internal/backends/maloja"
+	"go.uploadedlobster.com/scotty/internal/backends/scrobblerlog"
+	"go.uploadedlobster.com/scotty/internal/backends/subsonic"
+	"go.uploadedlobster.com/scotty/internal/models"
+)
+
+func TestResolveBackend(t *testing.T) {
+	config := viper.New()
+	config.Set("backend", "dump")
+	backend, err := backends.ResolveBackend[models.ListensImport](config)
+	assert.NoError(t, err)
+	assert.IsType(t, &dump.DumpBackend{}, backend)
+}
+
+func TestResolveBackendUnknown(t *testing.T) {
+	config := viper.New()
+	config.Set("backend", "foo")
+	_, err := backends.ResolveBackend[models.ListensImport](config)
+	assert.EqualError(t, err, "Unknown backend foo")
+}
+
+func TestResolveBackendInvalidInterface(t *testing.T) {
+	config := viper.New()
+	config.Set("backend", "dump")
+	_, err := backends.ResolveBackend[models.ListensExport](config)
+	assert.EqualError(t, err, "Backend dump does not implement ListensExport")
+}
+
+func TestGetBackends(t *testing.T) {
+	backends := backends.GetBackends()
+	for _, info := range backends {
+		if info.Name == "dump" {
+			assert.Containsf(t, info.ImportCapabilities, "listens",
+				"ImportCapabilities for \"dump\" expected to contain \"listens\"")
+			assert.Emptyf(t, info.ExportCapabilities,
+				"ExportCapabilities for \"dump\" expected to be empty")
+			return // Finish the test
+		}
+	}
+
+	// If we got here the "dump" backend was not included
+	t.Errorf("GetBackends() did not return expected bacend \"dump\"")
+}
+
+func TestImplementsInterfaces(t *testing.T) {
+	expectInterface[models.ListensImport](t, &dump.DumpBackend{})
+	expectInterface[models.LovesImport](t, &dump.DumpBackend{})
+
+	expectInterface[models.ListensExport](t, &funkwhale.FunkwhaleApiBackend{})
+	// expectInterface[models.ListensImport](t, &funkwhale.FunkwhaleApiBackend{})
+	expectInterface[models.LovesExport](t, &funkwhale.FunkwhaleApiBackend{})
+	// expectInterface[models.LovesImport](t, &funkwhale.FunkwhaleApiBackend{})
+
+	// expectInterface[models.ListensExport](t, &jspf.JSPFBackend{})
+	// expectInterface[models.ListensImport](t, &jspf.JSPFBackend{})
+	// expectInterface[models.LovesExport](t, &jspf.JSPFBackend{})
+	expectInterface[models.LovesImport](t, &jspf.JSPFBackend{})
+
+	expectInterface[models.ListensExport](t, &listenbrainz.ListenBrainzApiBackend{})
+	// expectInterface[models.ListensImport](t, &listenbrainz.ListenBrainzApiBackend{})
+	expectInterface[models.LovesExport](t, &listenbrainz.ListenBrainzApiBackend{})
+	expectInterface[models.LovesImport](t, &listenbrainz.ListenBrainzApiBackend{})
+
+	expectInterface[models.ListensExport](t, &maloja.MalojaApiBackend{})
+	expectInterface[models.ListensImport](t, &maloja.MalojaApiBackend{})
+
+	expectInterface[models.ListensExport](t, &scrobblerlog.ScrobblerLogBackend{})
+	expectInterface[models.ListensImport](t, &scrobblerlog.ScrobblerLogBackend{})
+
+	expectInterface[models.LovesExport](t, &subsonic.SubsonicApiBackend{})
+	// expectInterface[models.LovesImport](t, &subsonic.SubsonicApiBackend{})
+}
+
+func expectInterface[T interface{}](t *testing.T, backend models.Backend) {
+	ok, name := backends.ImplementsInterface[T](&backend)
+	if !ok {
+		t.Errorf("%v expected to implement %v", reflect.TypeOf(backend).Name(), name)
+	}
+}