Merge pull request #22 from sentinel-hub/feature/tests-mock

Feature/tests mock

Author: sinergise-anze

src/layer/__mocks__/axios.ts

@@ -0,0 +1,14 @@
+export default {
+  get: jest.fn(() => {
+    // axios.get() response:
+    return Promise.resolve({ data: {} });
+  }),
+  interceptors: {
+    request: {
+      use: () => {},
+    },
+    response: {
+      use: () => {},
+    },
+  },
+};

src/layer/__tests__/WmsLayer.ts

@@ -1,4 +1,5 @@
 import 'jest-setup';
+import axios from 'src/layer/__mocks__/axios';
 
 import { BBox, CRS_EPSG4326, ApiType, MimeTypes, WmsLayer } from 'src';
 
@@ -36,3 +37,45 @@ test('WmsLayer.getMapUrl returns an URL', () => {
   expect(imageUrl).not.toHaveQueryParams(['showlogo']);
   expect(imageUrl).not.toHaveQueryParams(['transparent']);
 });
+
+test('WmsLayer.getMap makes an appropriate request', () => {
+  const bbox = new BBox(CRS_EPSG4326, 19, 20, 20, 21);
+  const layerId = 'PROBAV_S1_TOA_333M';
+  const layer = new WmsLayer(
+    'https://proba-v-mep.esa.int/applications/geo-viewer/app/geoserver/ows',
+    layerId,
+  );
+
+  const getMapParams = {
+    bbox: bbox,
+    fromTime: new Date(Date.UTC(2020, 1 - 1, 10, 0, 0, 0)), // 2020-01-10/2020-01-10
+    toTime: new Date(Date.UTC(2020, 1 - 1, 10, 23, 59, 59)),
+    width: 512,
+    height: 512,
+    format: MimeTypes.JPEG,
+  };
+  layer.getMap(getMapParams, ApiType.WMS);
+
+  expect(axios.get).toHaveBeenCalledTimes(1);
+
+  const call: any = axios.get.mock.calls[0]; // cast to `any` so we can access the parameters
+  const [url, axiosParams] = call;
+
+  expect(url).toHaveOrigin('https://proba-v-mep.esa.int');
+  expect(url).toHaveQueryParamsValues({
+    service: 'WMS',
+    version: '1.1.1',
+    request: 'GetMap',
+    format: 'image/jpeg',
+    layers: layerId,
+    crs: 'EPSG:4326',
+    bbox: '19,20,20,21',
+    time: '2020-01-10T00:00:00.000Z/2020-01-10T23:59:59.000Z',
+    width: '512',
+    height: '512',
+  });
+  expect(axiosParams).toEqual({
+    responseType: 'blob',
+    useCache: true,
+  });
+});