message: improve test so it fails when it should
diff: @@ -54,14 +54,38 @@ describe('git/indexer', function() {
  it('does not reindex when mapping definition is stable', async function() {
  - let { repo, head } = await makeRepo(root);
  + let { repo, head } = await makeRepo(root, {
  + 'schema/content-types/articles.json': JSON.stringify({
  + relationships: {
  + fields: {
  + data: [
  + { type: 'fields', id: 'sample-string' },
  + { type: 'fields', id: 'sample-object' }
  + ]
  + }
  + }
  + }),
  + 'schema/fields/sample-string.json': JSON.stringify({
  + attributes: {
  + 'field-type': '@cardstack/core-types::string'
  + }
  + }),
  + 'schema/fields/sample-object.json': JSON.stringify({
  + attributes: {
  + 'field-type': '@cardstack/core-types::object'
  + }
  + })
  + });
  await indexer.update();
  let originalIndexName = (await ea.contentAliases()).get('master');
  expect(originalIndexName).ok;
  let change = await Change.create(repo, head, 'master');
  let file = await change.get('contents/articles/hello-world.json', { allowCreate: true });
  file.setContent(JSON.stringify({
  - hello: 'world'
  + attributes: {
  + 'sample-string': 'world',
  + 'sapmle-object': { bar: 'baz' }
  + }
  }));
  await change.finalize(commitOpts());
  await indexer.update();
  