Cleanup test directory (#2937)

Moves files around and renames some so that the structure is cleaner and
more consistent

tests/e2e/helpers/mock-console.js

@@ -0,0 +1,21 @@
+/**
+ * Suppresses errors concerning web server already shut down.
+ *
+ * @param {string} err The error message.
+ */
+const mockError = (err) => {
+	if (err.includes("ECONNREFUSED") || err.includes("ECONNRESET") || err.includes("socket hang up") || err.includes("exports is not defined") || err.includes("write EPIPE")) {
+		jest.fn();
+	} else {
+		console.dir(err);
+	}
+};
+
+global.console = {
+	log: jest.fn(),
+	dir: console.dir,
+	error: mockError,
+	warn: console.warn,
+	info: jest.fn(),
+	debug: console.debug
+};