Add filepath processor plugin (#7418)

plugins/processors/filepath/filepath_test.go

@@ -0,0 +1,70 @@
+// +build !windows
+
+package filepath
+
+import (
+	"testing"
+	"time"
+
+	"github.com/influxdata/telegraf"
+	"github.com/influxdata/telegraf/testutil"
+)
+
+var samplePath = "/my/test//c/../path/file.log"
+
+func TestOptions_Apply(t *testing.T) {
+	tests := []testCase{
+		{
+			name:         "Smoke Test",
+			o:            newOptions("/my/test/"),
+			inputMetrics: getSmokeTestInputMetrics(samplePath),
+			expectedMetrics: []telegraf.Metric{
+				testutil.MustMetric(
+					smokeMetricName,
+					map[string]string{
+						"baseTag":  "file.log",
+						"dirTag":   "/my/test/path",
+						"stemTag":  "file",
+						"cleanTag": "/my/test/path/file.log",
+						"relTag":   "path/file.log",
+						"slashTag": "/my/test//c/../path/file.log",
+					},
+					map[string]interface{}{
+						"baseField":  "file.log",
+						"dirField":   "/my/test/path",
+						"stemField":  "file",
+						"cleanField": "/my/test/path/file.log",
+						"relField":   "path/file.log",
+						"slashField": "/my/test//c/../path/file.log",
+					},
+					time.Now()),
+			},
+		},
+		{
+			name: "Test Dest Option",
+			o: &Options{
+				BaseName: []BaseOpts{
+					{
+						Field: "sourcePath",
+						Tag:   "sourcePath",
+						Dest:  "basePath",
+					},
+				}},
+			inputMetrics: []telegraf.Metric{
+				testutil.MustMetric(
+					"testMetric",
+					map[string]string{"sourcePath": samplePath},
+					map[string]interface{}{"sourcePath": samplePath},
+					time.Now()),
+			},
+			expectedMetrics: []telegraf.Metric{
+				testutil.MustMetric(
+					"testMetric",
+					map[string]string{"sourcePath": samplePath, "basePath": "file.log"},
+					map[string]interface{}{"sourcePath": samplePath, "basePath": "file.log"},
+					time.Now()),
+			},
+		},
+	}
+	runTestOptionsApply(t, tests)
+}