Adding upstream version 1.34.4.

Signed-off-by: Daniel Baumann <daniel@debian.org>

migrations/outputs_riemann_legacy/migration_test.go

@@ -0,0 +1,61 @@
+package outputs_riemann_legacy_test
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+
+	"github.com/influxdata/telegraf/config"
+	_ "github.com/influxdata/telegraf/migrations/outputs_riemann_legacy" // register migration
+	_ "github.com/influxdata/telegraf/plugins/outputs/riemann"           // register plugin
+)
+
+func TestCases(t *testing.T) {
+	// Get all directories in testdata
+	folders, err := os.ReadDir("testcases")
+	require.NoError(t, err)
+
+	for _, f := range folders {
+		// Only handle folders
+		if !f.IsDir() {
+			continue
+		}
+
+		t.Run(f.Name(), func(t *testing.T) {
+			testcasePath := filepath.Join("testcases", f.Name())
+			inputFile := filepath.Join(testcasePath, "telegraf.conf")
+			expectedFile := filepath.Join(testcasePath, "expected.conf")
+
+			// Read the expected output
+			expected := config.NewConfig()
+			require.NoError(t, expected.LoadConfig(expectedFile))
+			require.NotEmpty(t, expected.Outputs)
+
+			// Read the input data
+			input, remote, err := config.LoadConfigFile(inputFile)
+			require.NoError(t, err)
+			require.False(t, remote)
+			require.NotEmpty(t, input)
+
+			// Migrate
+			output, n, err := config.ApplyMigrations(input)
+			require.NoError(t, err)
+			require.NotEmpty(t, output)
+			require.GreaterOrEqual(t, n, uint64(1))
+			actual := config.NewConfig()
+			require.NoError(t, actual.LoadConfigData(output, config.EmptySourcePath))
+
+			// Test the output
+			require.Len(t, actual.Outputs, len(expected.Outputs))
+			actualIDs := make([]string, 0, len(expected.Outputs))
+			expectedIDs := make([]string, 0, len(expected.Outputs))
+			for i := range actual.Outputs {
+				actualIDs = append(actualIDs, actual.Outputs[i].ID())
+				expectedIDs = append(expectedIDs, expected.Outputs[i].ID())
+			}
+			require.ElementsMatch(t, expectedIDs, actualIDs)
+		})
+	}
+}