Add maps tests

src/lib/maps/__tests__/Client.spec.ts

@@ -0,0 +1,26 @@
+import { Credentials } from '@carto/toolkit-core';
+import { MapOptions, Maps as Client } from '../src/Client';
+
+describe('maps', () => {
+  it('can be easily created', () => {
+    const credentials = new Credentials('aUser', 'anApiKey');
+    const m = new Client(credentials);
+    expect(m).toBeTruthy();
+  });
+
+  describe('create a simple map', () => {
+    it('fails without dataset or sql query', async () => {
+      const credentials = new Credentials('aUser', 'anApiKey');
+      const m = new Client(credentials);
+
+      const mapOptions: MapOptions = {
+        vectorExtent: 2048,
+        vectorSimplifyExtent: 2048
+      };
+
+      await expect(m.instantiateMapFrom(mapOptions)).rejects.toThrowError(
+        'Please provide a dataset or a SQL query'
+      );
+    });
+  });
+});