Merge pull request #21 from sentinel-hub/feature/tests

Feature/tests

Author: sinergise-anze

.github/workflows/on_push.yaml

@@ -1,5 +1,5 @@
 name: Lint
-on: [push, pull_request]
+on: push
 
 jobs:
   test:
@@ -14,5 +14,9 @@ jobs:
 
       - name: Run linter
         run: |
-          npm install
+          npm ci
           npm run lint
+
+      - name: Run tests
+        run: |
+          npm run test

jest-setup.ts

@@ -0,0 +1,77 @@
+declare global {
+  namespace jest {
+    interface Matchers<R> {
+      toHaveQueryParams(expectedParamsKeys: Array<string>): R;
+      toHaveQueryParamsValues(expectedParams: Record<string, string>): R;
+      toHaveOrigin(expectedOrigin: string): R;
+    }
+  }
+}
+
+expect.extend({
+  toHaveQueryParams(received, expectedParamsKeys) {
+    const { params } = parseUrl(received);
+    for (let k of expectedParamsKeys) {
+      if (params[k] === undefined) {
+        return {
+          message: () => `URL query parameter [${k}] should exist, but it doesn't`,
+          pass: false,
+        };
+      }
+    }
+    return {
+      message: () =>
+        `URL [${received}] should not include all of the parameters ${JSON.stringify(expectedParamsKeys)}, but it does`,
+      pass: true,
+    };
+  },
+
+  toHaveQueryParamsValues(received, expectedParams) {
+    const { params } = parseUrl(received);
+    for (let k in expectedParams) {
+      if (String(params[k]) !== String(expectedParams[k])) {
+        return {
+          message: () => `URL query parameter [${k}] should have value [${expectedParams[k]}], instead it has value [${params[k]}]`,
+          pass: false,
+        };
+      }
+    }
+    return {
+      message: () =>
+        `URL [${received}] should not include all of the values [${JSON.stringify(expectedParams)}], but it does`,
+      pass: true,
+    };
+  },
+
+  toHaveOrigin(received, expectedOrigin) {
+    const { origin } = parseUrl(received);
+    if (origin !== expectedOrigin) {
+      return {
+        message: () => `URL hostname should have value [${expectedOrigin}], instead it has value [${origin}]`,
+        pass: false,
+      };
+    }
+    return {
+      message: () => `URL hostname should not have value [${expectedOrigin}], but it does`, // if .not is used
+      pass: true,
+    };
+  },
+});
+
+/* ************************ */
+
+function parseUrl(urlWithQueryParams: string) {
+  const url = new URL(urlWithQueryParams);
+  let params: Record<string, string> = {};
+  url.searchParams.forEach((value, key) => {
+    params[key] = value;
+  });
+  const baseUrl = `${url.origin}${url.pathname}`;
+  return {
+    origin: url.origin,
+    baseUrl: baseUrl,
+    params: params,
+  };
+}
+
+export default undefined;