增加自动化测试脚本。

.travis.php

@@ -0,0 +1,35 @@
+<?php
+
+$db = $argv[1] ?? 'mysql';
+$connection = [];
+switch ($db) {
+    case 'pgsql':
+        $connection = [
+            'DB_CONNECTION' => 'pgsql',
+            'DB_HOST' => '127.0.0.1',
+            'DB_PORT' => '5432',
+            'DB_DATABASE' => 'plus',
+            'DB_USERNAME' => 'postgres',
+            'DB_PASSWORD' => 'postgres',
+        ];
+        break;
+
+    case 'mysql':
+    default:
+        $connection = [
+            'DB_CONNECTION' => 'mysql',
+            'DB_HOST' => '127.0.0.1',
+            'DB_PORT' => '3306',
+            'DB_DATABASE' => 'plus',
+            'DB_USERNAME' => 'root',
+            'DB_PASSWORD' => '',
+        ];
+        break;
+}
+
+$env = file_get_contents(__DIR__.'/.env.example');
+foreach ($connection as $key => $value) {
+    $env = preg_replace("/{$key}=(.*)?/i", "{$key}={$value}", $env);
+}
+
+file_put_contents(__DIR__.'/.env.travis', $env);

.travis.yml

@@ -1,20 +1,34 @@
 sudo: false
+
 language: php
+
 php:
     - 7.0
     - 7.1
+
+env:
+    - DB=mysql
+    - DB=postgres
+
 services:
     - postgresql
+    - mysql
+
 before_install:
-    - psql -c 'create database travis_ci_test;' -U postgres
+    - sh -c "if [ '$DB' = 'pgsql' ]; then psql -c 'create database plus;' -U postgres
+    - sh -c "if [ '$DB' = 'mysql' ]; then mysql -e 'CREATE DATABASE IF NOT EXISTS plus;'
+    - sh -c "php ./.travis.php "$DB""
     - php -r "file_exists('.env') || copy('.env.travis', '.env');"
+
 install:
     - composer install
     - php artisan key:generate
+
 script:
     - php artisan migrate
     - php artisan db:seed
     - php artisan vendor:publish --force
     - php vendor/bin/phpunit --coverage-clover=./storage/logs/coverage.xml
+
 after_script:
     - php vendor/bin/codacycoverage clover ./storage/logs/coverage.xml