add post fixtures

test/post-fixtures/generate-fixtures.php

@@ -0,0 +1,21 @@
+#!/usr/bin/env php
+<?php
+
+class GenerateFixtures {
+	function generate_flat_categories() {
+		$output = array('posts' => array());
+		for ($i = 0; $i < 100; ++$i) {
+			$output['posts'][] = array(
+				"post_date" => date('Y-m-d', $i * (60 * 60 * 24)),
+				"categories" => array("Category ${i}"),
+				"post_title" => "Post ${i}"
+			);
+		}
+		return json_encode($output);
+	}
+}
+
+foreach (get_class_methods('GenerateFixtures') as $method) {
+	echo "Generating ${method}...\n";
+	file_put_contents("${method}.json", call_user_func(array('GenerateFixtures', $method)));
+}