Initial API tests

test/api_helpers.js

@@ -0,0 +1,18 @@
+import {describe, it} from 'mocha';
+import {expect} from 'chai';
+
+export const checkWrite = (
+    {
+      api,
+      fieldName,
+      valueToTest = 'xxx',
+      expectedError = 0,
+    }) => {
+  describe(`Field: ${fieldName}`, () => {
+    const status = expectedError > 0 ? 'fail to' : 'successfully';
+    it(`Should ${status} write to ${fieldName}`, () => {
+      eval(`api.lmsSetValue('${fieldName}', '${valueToTest}')`);
+      expect(String(api.lastErrorCode)).to.equal(String(expectedError));
+    });
+  });
+};