1 files changed, 134 insertions, 0 deletions
diff --git a/www/wiki/tests/phpunit/includes/diff/ArrayDiffFormatterTest.php b/www/wiki/tests/phpunit/includes/diff/ArrayDiffFormatterTest.php
new file mode 100644
index 00000000..8d94404c
--- /dev/null
+++ b/www/wiki/tests/phpunit/includes/diff/ArrayDiffFormatterTest.php
@@ -0,0 +1,134 @@
+<?php
+
+/**
+ * @author Addshore
+ *
+ * @group Diff
+ */
+class ArrayDiffFormatterTest extends MediaWikiTestCase {
+
+	/**
+	 * @param Diff $input
+	 * @param array $expectedOutput
+	 * @dataProvider provideTestFormat
+	 * @covers ArrayDiffFormatter::format
+	 */
+	public function testFormat( $input, $expectedOutput ) {
+		$instance = new ArrayDiffFormatter();
+		$output = $instance->format( $input );
+		$this->assertEquals( $expectedOutput, $output );
+	}
+
+	private function getMockDiff( $edits ) {
+		$diff = $this->getMockBuilder( Diff::class )
+			->disableOriginalConstructor()
+			->getMock();
+		$diff->expects( $this->any() )
+			->method( 'getEdits' )
+			->will( $this->returnValue( $edits ) );
+		return $diff;
+	}
+
+	private function getMockDiffOp( $type = null, $orig = [], $closing = [] ) {
+		$diffOp = $this->getMockBuilder( DiffOp::class )
+			->disableOriginalConstructor()
+			->getMock();
+		$diffOp->expects( $this->any() )
+			->method( 'getType' )
+			->will( $this->returnValue( $type ) );
+		$diffOp->expects( $this->any() )
+			->method( 'getOrig' )
+			->will( $this->returnValue( $orig ) );
+		if ( $type === 'change' ) {
+			$diffOp->expects( $this->any() )
+				->method( 'getClosing' )
+				->with( $this->isType( 'integer' ) )
+				->will( $this->returnCallback( function () {
+					return 'mockLine';
+				} ) );
+		} else {
+			$diffOp->expects( $this->any() )
+				->method( 'getClosing' )
+				->will( $this->returnValue( $closing ) );
+		}
+		return $diffOp;
+	}
+
+	public function provideTestFormat() {
+		$emptyArrayTestCases = [
+			$this->getMockDiff( [] ),
+			$this->getMockDiff( [ $this->getMockDiffOp( 'add' ) ] ),
+			$this->getMockDiff( [ $this->getMockDiffOp( 'delete' ) ] ),
+			$this->getMockDiff( [ $this->getMockDiffOp( 'change' ) ] ),
+			$this->getMockDiff( [ $this->getMockDiffOp( 'copy' ) ] ),
+			$this->getMockDiff( [ $this->getMockDiffOp( 'FOOBARBAZ' ) ] ),
+			$this->getMockDiff( [ $this->getMockDiffOp( 'add', 'line' ) ] ),
+			$this->getMockDiff( [ $this->getMockDiffOp( 'delete', [], [ 'line' ] ) ] ),
+			$this->getMockDiff( [ $this->getMockDiffOp( 'copy', [], [ 'line' ] ) ] ),
+		];
+
+		$otherTestCases = [];
+		$otherTestCases[] = [
+			$this->getMockDiff( [ $this->getMockDiffOp( 'add', [], [ 'a1' ] ) ] ),
+			[ [ 'action' => 'add', 'new' => 'a1', 'newline' => 1 ] ],
+		];
+		$otherTestCases[] = [
+			$this->getMockDiff( [ $this->getMockDiffOp( 'add', [], [ 'a1', 'a2' ] ) ] ),
+			[
+				[ 'action' => 'add', 'new' => 'a1', 'newline' => 1 ],
+				[ 'action' => 'add', 'new' => 'a2', 'newline' => 2 ],
+			],
+		];
+		$otherTestCases[] = [
+			$this->getMockDiff( [ $this->getMockDiffOp( 'delete', [ 'd1' ] ) ] ),
+			[ [ 'action' => 'delete', 'old' => 'd1', 'oldline' => 1 ] ],
+		];
+		$otherTestCases[] = [
+			$this->getMockDiff( [ $this->getMockDiffOp( 'delete', [ 'd1', 'd2' ] ) ] ),
+			[
+				[ 'action' => 'delete', 'old' => 'd1', 'oldline' => 1 ],
+				[ 'action' => 'delete', 'old' => 'd2', 'oldline' => 2 ],
+			],
+		];
+		$otherTestCases[] = [
+			$this->getMockDiff( [ $this->getMockDiffOp( 'change', [ 'd1' ], [ 'a1' ] ) ] ),
+			[ [
+				'action' => 'change',
+				'old' => 'd1',
+				'new' => 'mockLine',
+				'newline' => 1, 'oldline' => 1
+			] ],
+		];
+		$otherTestCases[] = [
+			$this->getMockDiff( [ $this->getMockDiffOp(
+				'change',
+				[ 'd1', 'd2' ],
+				[ 'a1', 'a2' ]
+			) ] ),
+			[
+				[
+					'action' => 'change',
+					'old' => 'd1',
+					'new' => 'mockLine',
+					'newline' => 1, 'oldline' => 1
+				],
+				[
+					'action' => 'change',
+					'old' => 'd2',
+					'new' => 'mockLine',
+					'newline' => 2, 'oldline' => 2
+				],
+			],
+		];
+
+		$testCases = [];
+		foreach ( $emptyArrayTestCases as $testCase ) {
+			$testCases[] = [ $testCase, [] ];
+		}
+		foreach ( $otherTestCases as $testCase ) {
+			$testCases[] = [ $testCase[0], $testCase[1] ];
+		}
+		return $testCases;
+	}
+
+}