add failing test for table-of-contents plugin

test/plugins/table-of-contents.js

@@ -0,0 +1,64 @@
+/* eslint-disable no-useless-escape */
+
+const { createBuilder, createTempDir } = require('broccoli-test-helper');
+const { expect } = require('chai');
+const TableOfContents = require('../../lib/table-of-contents');
+
+describe('table-of-contents', function () {
+  it('should build', async function () {
+    const input = await createTempDir();
+    try {
+      // TODO why does this need to be an array of folders
+      const subject = new TableOfContents([input.path()]);
+      const output = createBuilder(subject);
+
+      try {
+        // INITIAL
+        input.write({
+          'pages.yml': `- title: "Getting Started"
+  url: 'getting-started'
+  pages:
+    - title: "How To Use The Guides"
+      url: "intro"`,
+        });
+
+        await output.build();
+
+        expect(output.read()).to.deep.equal({
+          'pages.json': '{"data":[{"type":"pages","id":"getting-started","attributes":{"title":"Getting Started","pages":[{"title":"How To Use The Guides","url":"getting-started/intro"}]}}]}',
+        });
+
+        expect(output.changes()).to.deep.equal({
+          'pages.json': 'create',
+        });
+
+        // UPDATE
+        input.write({
+          'pages.yml': `- title: "Tutorial"
+  url: 'tutorial'
+  pages:
+    - title: "Creating Your App"
+      url: "ember-cli"`, // change
+        });
+        await output.build();
+
+        expect(output.read()).to.deep.equal({
+          'pages.json': '{"data":[{"type":"pages","id":"tutorial","attributes":{"title":"Tutorial","pages":[{"title":"Creating Your App","url":"tutorial/ember-cli"}]}}]}',
+        });
+
+        expect(output.changes()).to.deep.equal({
+          'pages.json': 'change',
+        });
+
+        // NOOP
+        await output.build();
+
+        expect(output.changes()).to.deep.equal({});
+      } finally {
+        await output.dispose();
+      }
+    } finally {
+      await input.dispose();
+    }
+  });
+});