Moved specifc backends into separate packages

backends/backends_test.go

@@ -0,0 +1,71 @@
+/*
+Copyright © 2023 Philipp Wolfer <phw@uploadedlobster.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
+package backends_test
+
+import (
+	"testing"
+
+	"github.com/spf13/viper"
+	"github.com/stretchr/testify/assert"
+	"go.uploadedlobster.com/scotty/backends"
+	"go.uploadedlobster.com/scotty/backends/dump"
+	"go.uploadedlobster.com/scotty/models"
+)
+
+func TestResolveBackend(t *testing.T) {
+	config := viper.New()
+	config.Set("backend", "dump")
+	backend, err := backends.ResolveBackend[models.ListenImport](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.ListenImport](config)
+	assert.EqualError(t, err, "Unknown backend foo")
+}
+
+func TestResolveBackendInvalidInterface(t *testing.T) {
+	config := viper.New()
+	config.Set("backend", "dump")
+	_, err := backends.ResolveBackend[models.ListenExport](config)
+	assert.EqualError(t, err, "Backend dump does not implement ListenExport")
+}
+
+func TestGetBackends(t *testing.T) {
+	backends := backends.GetBackends()
+	for _, info := range backends {
+		if info.Name == "dump" {
+			assert.Containsf(t, info.ImportCapabilities, "listen",
+				"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\"")
+}