fix： ut

AI-GEN:  0% # Please enter the commit message for your changes. Lines starting

Author: xiongjiaojiao

test/mapboxgl/mapping/WebMapV3Spec.js

@@ -718,7 +718,7 @@ describe('mapboxgl-webmap3.0', () => {
         )
       ).toBeTruthy();
       expect(
-        appreciableLayers.some((item) => item.id === 'CHINA_DARK' && !Object.keys(item.dataSource).length)
+        appreciableLayers.some((item) => item.id === 'CHINA_DARK' && !item.dataSource.type)
       ).toBeTruthy();
       spyTest.calls.reset();
       done();

test/maplibregl/mapping/WebMapV3Spec.js

@@ -684,7 +684,7 @@ describe('maplibregl-webmap3.0', () => {
         )
       ).toBeTruthy();
       expect(
-        appreciableLayers.some((item) => item.id === 'CHINA_DARK' && !Object.keys(item.dataSource).length)
+        appreciableLayers.some((item) => item.id === 'CHINA_DARK' && !item.dataSource.type)
       ).toBeTruthy();
       spyTest.calls.reset();
       done();