Inline diffs upstreamed from MobileFrontend to core.

A new inline mode is provided for diffs.
It is only available when wikidiff2 is installed.
There is no PHP implementation (one can be added later if
necessary)

For now, it is accessed by passing diff-type as a query string parameter
e.g ?diff-type=inline
A control for switching between the two is added as a follow up.
see Ie9bb17789d90b7492559782021937f3f3e4356f8

* The final method getSlotDiffRenderer now takes a second parameter
options
* The method `getSlotDiffRendererInternal` is deprecated and
replaced with the more flexible `getSlotDiffRendererWithOptions`
This has potential to be a breaking change but is unlikely to impact
any existing clients.

Note: PHP implementation can be added later if necessary

Bug: T117279
Change-Id: I4f81c8ccf253dd4aa6cf43c3fad257b4b0dd1ebd

1 files changed, 9 insertions, 0 deletions

diff --git a/tests/phpunit/includes/diff/TextSlotDiffRendererTest.php b/tests/phpunit/includes/diff/TextSlotDiffRendererTest.php
index 570cedea70e6..8437c1c8152c 100644
--- a/tests/phpunit/includes/diff/TextSlotDiffRendererTest.php
+++ b/tests/phpunit/includes/diff/TextSlotDiffRendererTest.php
@@ -8,6 +8,15 @@ use Wikimedia\Assert\ParameterTypeException;
  */
 class TextSlotDiffRendererTest extends MediaWikiTestCase {
 
+	public function testGetExtraCacheKeys() {
+		$slotDiffRenderer = $this->getTextSlotDiffRenderer();
+		$key = $slotDiffRenderer->getExtraCacheKeys();
+		$slotDiffRenderer->setEngine( TextSlotDiffRenderer::ENGINE_WIKIDIFF2_INLINE );
+		$inlineKey = $slotDiffRenderer->getExtraCacheKeys();
+		$this->assertSame( $key, [] );
+		$this->assertSame( $inlineKey, [ phpversion( 'wikidiff2' ), 'inline' ] );
+	}
+
 	/**
 	 * @dataProvider provideGetDiff
 	 * @param array|null $oldContentArgs To pass to makeContent() (if not null)