Move PHPUnit tests into a tests/phpunit directory.

wp-tests-config.php can/should reside in the root of a develop checkout. `phpunit` should be run from the root.

see #25088.


git-svn-id: https://develop.svn.wordpress.org/trunk@25165 602fd350-edb4-49c9-b593-d223f7449a82

tests/phpunit/tests/export/functions.export.php

@@ -0,0 +1,35 @@
+<?php
+
+/**
+ * Test export functions
+ *
+ * @group export
+ * @ticket 22435
+ */
+class Test_WP_Export_Functions extends WP_UnitTestCase {
+	function test_wp_export_returns_wp_error_if_the_writer_throws_Export_exception() {
+		$this->assertTrue( is_wp_error( wp_export( array( 'writer' => 'Test_WP_Export_Stub_Writer_Throws_Export_Exception' ) ) ) );
+	}
+
+	function test_wp_export_passes_the_exception_if_the_writer_throws_other_exception() {
+		$this->setExpectedException( 'Exception' );
+		wp_export( array( 'writer' => 'Test_WP_Export_Stub_Writer_Throws_Other_Exception' ) );
+	}
+
+}
+
+class Test_WP_Export_Stub_Writer_Throws_Export_Exception {
+	function __construct( $formatter ) {
+	}
+	function export() {
+		throw new WP_Export_Exception( 'baba' );
+	}
+}
+
+class Test_WP_Export_Stub_Writer_Throws_Other_Exception {
+	function __construct( $formatter ) {
+	}
+	function export() {
+		throw new Exception( 'baba' );
+	}
+}