alice2108
diff --git a/‎test/leaflet/overlay/TurfLayerSpec.js
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+import { TurfLayer } from '../../../src/leaflet/overlay/TurfLayer';
+import * as turf from '@turf/turf';
+describe('leaflet_Turf', () => {
+    var opt_options;
+    var serviceResult;
+
+    it('parse,parseOption,rocess_Measurement.along,', (done) => {
+        opt_options = {
+            attributions: " ",
+            features: " ",
+            format: "",
+            logo: "",
+            projection: "",
+            wrapX: "",
+        };
+        var turfLayer = new TurfLayer(opt_options);
+        expect(turfLayer).not.toBeNull();;
+        var type = "Measurement.along";
+        var line = turf.lineString([[-83, 30], [-84, 36], [-78, 41]]);
+        var options = { units: 'miles' };
+
+        var args = {
+            line: line,
+            distance: 10,
+            units: "kilometers"
+        };
+        var addFeaturesToMap = false;
+
+        turfLayer.process(type, args, (result) => {
+            serviceResult = result
+        }, addFeaturesToMap);
+        expect(serviceResult).not.toBeNull();
+        expect(serviceResult.geometry).not.toBeNull();
+        done();
+    });
+});