1 files changed, 94 insertions, 0 deletions
diff --git a/tests/phpunit/includes/GlobalFunctions/wfArrayPlus2dTest.php b/tests/phpunit/includes/GlobalFunctions/wfArrayPlus2dTest.php
new file mode 100644
index 00000000..88875bb0
--- /dev/null
+++ b/tests/phpunit/includes/GlobalFunctions/wfArrayPlus2dTest.php
@@ -0,0 +1,94 @@
+<?php
+/**
+ * @group GlobalFunctions
+ * @covers ::wfArrayPlus2d
+ */
+class WfArrayPlus2dTest extends MediaWikiTestCase {
+	/**
+	 * @dataProvider provideArrays
+	 */
+	public function testWfArrayPlus2d( $baseArray, $newValues, $expected, $testName ) {
+		$this->assertEquals(
+			$expected,
+			wfArrayPlus2d( $baseArray, $newValues ),
+			$testName
+		);
+	}
+
+	/**
+	 * Provider for testing wfArrayPlus2d
+	 *
+	 * @return array
+	 */
+	public static function provideArrays() {
+		return array(
+			// target array, new values array, expected result
+			array(
+				array( 0 => '1dArray' ),
+				array( 1 => '1dArray' ),
+				array( 0 => '1dArray', 1 => '1dArray' ),
+				"Test simple union of two arrays with different keys",
+			),
+			array(
+				array(
+					0 => array( 0 => '2dArray' ),
+				),
+				array(
+					0 => array( 1 => '2dArray' ),
+				),
+				array(
+					0 => array( 0 => '2dArray', 1 => '2dArray' ),
+				),
+				"Test union of 2d arrays with different keys in the value array",
+			),
+			array(
+				array(
+					0 => array( 0 => '2dArray' ),
+				),
+				array(
+					0 => array( 0 => '1dArray' ),
+				),
+				array(
+					0 => array( 0 => '2dArray' ),
+				),
+				"Test union of 2d arrays with same keys in the value array",
+			),
+			array(
+				array(
+					0 => array( 0 => array( 0 => '3dArray' ) ),
+				),
+				array(
+					0 => array( 0 => array( 1 => '2dArray' ) ),
+				),
+				array(
+					0 => array( 0 => array( 0 => '3dArray' ) ),
+				),
+				"Test union of 3d array with different keys",
+			),
+			array(
+				array(
+					0 => array( 0 => array( 0 => '3dArray' ) ),
+				),
+				array(
+					0 => array( 1 => array( 0 => '2dArray' ) ),
+				),
+				array(
+					0 => array( 0 => array( 0 => '3dArray' ), 1 => array( 0 => '2dArray' ) ),
+				),
+				"Test union of 3d array with different keys in the value array",
+			),
+			array(
+				array(
+					0 => array( 0 => array( 0 => '3dArray' ) ),
+				),
+				array(
+					0 => array( 0 => array( 0 => '2dArray' ) ),
+				),
+				array(
+					0 => array( 0 => array( 0 => '3dArray' ) ),
+				),
+				"Test union of 3d array with same keys in the value array",
+			),
+		);
+	}
+}