Revert "Remove some tests to see if it still errors"

This reverts commit 0abebc1e32.

tests/e2e/modules_display_spec.js

@@ -0,0 +1,41 @@
+const helpers = require("./global-setup");
+
+const describe = global.describe;
+const it = global.it;
+
+describe("Display of modules", function () {
+	helpers.setupTimeout(this);
+
+	var app = null;
+
+	beforeEach(function () {
+		return helpers
+			.startApplication({
+				args: ["js/electron.js"]
+			})
+			.then(function (startedApp) {
+				app = startedApp;
+			});
+	});
+
+	afterEach(function () {
+		return helpers.stopApplication(app);
+	});
+
+	describe("Using helloworld", function () {
+		before(function () {
+			// Set config sample for use in test
+			process.env.MM_CONFIG_FILE = "tests/configs/modules/display.js";
+		});
+
+		it("should show the test header", async () => {
+			const elem = await app.client.$("#module_0_helloworld .module-header", 10000);
+			return elem.getText("#module_0_helloworld .module-header").should.eventually.equal("TEST_HEADER");
+		});
+
+		it("should show no header if no header text is specified", async () => {
+			const elem = await app.client.$("#module_1_helloworld .module-header", 10000);
+			return elem.getText("#module_1_helloworld .module-header").should.eventually.equal(false);
+		});
+	});
+});