Fix test setup for wp-env.

After much reading I finally found the magic incantations, so now we can
run tests with real database access. This means we no longer need the
primitive $wpdb_stub.

The setup as now _requires_ wp-env, or an environment set up
sufficiently similar. Running in wp-env is the easiest, so aim for that.

I've added a `run-tests` script that will invoke the magic incantation
without having to remember it every time.

To set up for testing:

1. make sure you have composer[1] installed.
2. run `composer install`
3. make sure you have wp-env[2] installed
4. start the wordpress env: `wp-env start`
5. run the tests: `./run-tests`

Let the thousand tests bloom!

[1]: https://github.com/wp-phpunit/wp-phpunit
[2]: https://www.npmjs.com/package/@wordpress/env

1 files changed, 17 insertions, 0 deletions

diff --git a/phpunit.xml b/phpunit.xml
new file mode 100644
index 0000000..d8ef2a6
--- /dev/null
+++ b/phpunit.xml
@@ -0,0 +1,17 @@
+<phpunit
+	bootstrap="tests/bootstrap.php"
+	backupGlobals="false"
+	colors="true"
+	convertErrorsToExceptions="true"
+	convertNoticesToExceptions="true"
+	convertWarningsToExceptions="true"
+	>
+    <php>
+        <env name="WP_PHPUNIT__TESTS_CONFIG" value="/var/www/html/wp-phpunit-config.php" />
+    </php>
+	<testsuites>
+		<testsuite name="default">
+			<directory suffix="Test.php">./tests/</directory>
+		</testsuite>
+	</testsuites>
+</phpunit>