1 files changed, 172 insertions, 0 deletions
diff --git a/tests/phpunit/includes/OutputPageTest.php b/tests/phpunit/includes/OutputPageTest.php
new file mode 100644
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+++ b/tests/phpunit/includes/OutputPageTest.php
@@ -0,0 +1,172 @@
+<?php
+
+/**
+ *
+ * @author Matthew Flaschen
+ *
+ * @group Output
+ *
+ */
+class OutputPageTest extends MediaWikiTestCase {
+	const SCREEN_MEDIA_QUERY = 'screen and (min-width: 982px)';
+	const SCREEN_ONLY_MEDIA_QUERY = 'only screen and (min-width: 982px)';
+
+	/**
+	 * Tests a particular case of transformCssMedia, using the given input, globals,
+	 * expected return, and message
+	 *
+	 * Asserts that $expectedReturn is returned.
+	 *
+	 * options['printableQuery'] - value of query string for printable, or omitted for none
+	 * options['handheldQuery'] - value of query string for handheld, or omitted for none
+	 * options['handheldForIPhone'] - value of the $wgHandheldForIPhone global
+	 * options['media'] - passed into the method under the same name
+	 * options['expectedReturn'] - expected return value
+	 * options['message'] - PHPUnit message for assertion
+	 *
+	 * @param array $args key-value array of arguments as shown above
+	 */
+	protected function assertTransformCssMediaCase( $args ) {
+		$queryData = array();
+		if ( isset( $args['printableQuery'] ) ) {
+			$queryData['printable'] = $args['printableQuery'];
+		}
+
+		if ( isset( $args['handheldQuery'] ) ) {
+			$queryData['handheld'] = $args['handheldQuery'];
+		}
+
+		$fauxRequest = new FauxRequest( $queryData, false );
+		$this->setMWGlobals( array(
+			'wgRequest' => $fauxRequest,
+			'wgHandheldForIPhone' => $args['handheldForIPhone']
+		) );
+
+		$actualReturn = OutputPage::transformCssMedia( $args['media'] );
+		$this->assertSame( $args['expectedReturn'], $actualReturn, $args['message'] );
+	}
+
+	/**
+	 * Tests a case of transformCssMedia with both values of wgHandheldForIPhone.
+	 * Used to verify that behavior is orthogonal to that option.
+	 *
+	 * If the value of wgHandheldForIPhone should matter, use assertTransformCssMediaCase.
+	 *
+	 * @param array $args key-value array of arguments as shown in assertTransformCssMediaCase.
+	 * Will be mutated.
+	 */
+	protected function assertTransformCssMediaCaseWithBothHandheldForIPhone( $args ) {
+		$message = $args['message'];
+		foreach ( array( true, false ) as $handheldForIPhone ) {
+			$args['handheldForIPhone'] = $handheldForIPhone;
+			$stringHandheldForIPhone = var_export( $handheldForIPhone, true );
+			$args['message'] = "$message. \$wgHandheldForIPhone was $stringHandheldForIPhone";
+			$this->assertTransformCssMediaCase( $args );
+		}
+	}
+
+	/**
+	 * Tests print requests
+	 */
+	public function testPrintRequests() {
+		$this->assertTransformCssMediaCaseWithBothHandheldForIPhone( array(
+			'printableQuery' => '1',
+			'media' => 'screen',
+			'expectedReturn' => null,
+			'message' => 'On printable request, screen returns null'
+		) );
+
+		$this->assertTransformCssMediaCaseWithBothHandheldForIPhone( array(
+			'printableQuery' => '1',
+			'media' => self::SCREEN_MEDIA_QUERY,
+			'expectedReturn' => null,
+			'message' => 'On printable request, screen media query returns null'
+		) );
+
+		$this->assertTransformCssMediaCaseWithBothHandheldForIPhone( array(
+			'printableQuery' => '1',
+			'media' => self::SCREEN_ONLY_MEDIA_QUERY,
+			'expectedReturn' => null,
+			'message' => 'On printable request, screen media query with only returns null'
+		) );
+
+		$this->assertTransformCssMediaCaseWithBothHandheldForIPhone( array(
+			'printableQuery' => '1',
+			'media' => 'print',
+			'expectedReturn' => '',
+			'message' => 'On printable request, media print returns empty string'
+		) );
+	}
+
+	/**
+	 * Tests screen requests, without either query parameter set
+	 */
+	public function testScreenRequests() {
+		$this->assertTransformCssMediaCase( array(
+			'handheldForIPhone' => false,
+			'media' => 'screen',
+			'expectedReturn' => 'screen',
+			'message' => 'On screen request, with handheldForIPhone false, screen media type is preserved'
+		) );
+
+		$this->assertTransformCssMediaCaseWithBothHandheldForIPhone( array(
+			'media' => self::SCREEN_MEDIA_QUERY,
+			'expectedReturn' => self::SCREEN_MEDIA_QUERY,
+			'message' => 'On screen request, screen media query is preserved.'
+		) );
+
+		$this->assertTransformCssMediaCaseWithBothHandheldForIPhone( array(
+			'media' => self::SCREEN_ONLY_MEDIA_QUERY,
+			'expectedReturn' => self::SCREEN_ONLY_MEDIA_QUERY,
+			'message' => 'On screen request, screen media query with only is preserved.'
+		) );
+
+		$this->assertTransformCssMediaCaseWithBothHandheldForIPhone( array(
+			'media' => 'print',
+			'expectedReturn' => 'print',
+			'message' => 'On screen request, print media type is preserved'
+		) );
+	}
+
+	/**
+	 * Tests handheld and wgHandheldForIPhone behavior
+	 */
+	public function testHandheld() {
+		$this->assertTransformCssMediaCaseWithBothHandheldForIPhone( array(
+			'handheldQuery' => '1',
+			'media' => 'handheld',
+			'expectedReturn' => '',
+			'message' => 'On request with handheld querystring and media is handheld, returns empty string'
+		) );
+
+		$this->assertTransformCssMediaCaseWithBothHandheldForIPhone( array(
+			'handheldQuery' => '1',
+			'media' => 'screen',
+			'expectedReturn' => null,
+			'message' => 'On request with handheld querystring and media is screen, returns null'
+		) );
+
+		// A bit counter-intuitively, $wgHandheldForIPhone should only matter if the query handheld is false or omitted
+		$this->assertTransformCssMediaCase( array(
+			'handheldQuery' => '0',
+			'media' => 'screen',
+			'handheldForIPhone' => true,
+			'expectedReturn' => 'screen and (min-device-width: 481px)',
+			'message' => 'With $wgHandheldForIPhone true, screen media type is transformed'
+		) );
+
+		$this->assertTransformCssMediaCase( array(
+			'media' => 'handheld',
+			'handheldForIPhone' => true,
+			'expectedReturn' => 'handheld, only screen and (max-device-width: 480px)',
+			'message' => 'With $wgHandheldForIPhone true, handheld media type is transformed'
+		) );
+
+		$this->assertTransformCssMediaCase( array(
+			'media' => 'handheld',
+			'handheldForIPhone' => false,
+			'expectedReturn' => 'handheld',
+			'message' => 'With $wgHandheldForIPhone false, handheld media type is preserved'
+		) );
+	}
+}