Plugins: Factory for instantiating core plugin (#85047)

pkg/plugins/backendplugin/coreplugin/registry_test.go

@@ -0,0 +1,63 @@
+package coreplugin
+
+import (
+	"testing"
+
+	"github.com/grafana/grafana-plugin-sdk-go/backend/httpclient"
+	"github.com/grafana/grafana/pkg/infra/tracing"
+	"github.com/grafana/grafana/pkg/services/featuremgmt"
+	"github.com/grafana/grafana/pkg/setting"
+	"github.com/stretchr/testify/require"
+)
+
+func TestNewPlugin(t *testing.T) {
+	tcs := []struct {
+		ID                  string
+		ExpectedID          string
+		ExpectedAlias       string
+		ExpectedNotFoundErr bool
+	}{
+		{ID: AzureMonitor},
+		{ID: CloudMonitoring},
+		{ID: CloudWatch},
+		{ID: Elasticsearch},
+		{ID: Grafana, ExpectedNotFoundErr: true},
+		{ID: Graphite},
+		{ID: InfluxDB},
+		{ID: Loki},
+		{ID: MSSQL},
+		{ID: MySQL},
+		{ID: OpenTSDB},
+		{ID: Parca},
+		{ID: PostgreSQL},
+		{ID: Prometheus},
+		{ID: Pyroscope},
+		{ID: Tempo},
+		{ID: TestData, ExpectedAlias: TestDataAlias},
+		{ID: TestDataAlias, ExpectedID: TestData, ExpectedAlias: TestDataAlias},
+	}
+
+	for _, tc := range tcs {
+		t.Run(tc.ID, func(t *testing.T) {
+			if tc.ExpectedID == "" {
+				tc.ExpectedID = tc.ID
+			}
+
+			p, err := NewPlugin(tc.ID, setting.NewCfg(), httpclient.NewProvider(), tracing.InitializeTracerForTest(), featuremgmt.WithFeatures())
+			if tc.ExpectedNotFoundErr {
+				require.ErrorIs(t, err, ErrCorePluginNotFound)
+				require.Nil(t, p)
+			} else {
+				require.NoError(t, err)
+				require.NotNil(t, p)
+				require.Equal(t, tc.ExpectedID, p.ID)
+				if tc.ExpectedAlias != "" {
+					require.Equal(t, tc.ExpectedAlias, p.AliasIDs[0])
+				}
+				c, exists := p.Client()
+				require.True(t, exists)
+				require.NotNil(t, c)
+			}
+		})
+	}
+}