mediawiki-extensions-Cite/tests/phpunit/unit/ReferenceStackTest.php

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<?php
namespace Cite\Tests\Unit;
use Cite\ReferenceStack;
use LogicException;
use StripState;
use Wikimedia\TestingAccessWrapper;
/**
* @covers \Cite\ReferenceStack
* @license GPL-2.0-or-later
*/
class ReferenceStackTest extends \MediaWikiUnitTestCase {
public function testPushInvalidRef() {
$stack = $this->newStack();
$stack->pushInvalidRef();
$this->assertSame( [ false ], $stack->refCallStack );
}
/**
* @dataProvider providePushRef
*/
public function testPushRefs(
array $refs,
array $expectedOutputs,
array $finalRefs,
array $finalCallStack
) {
$mockStripState = $this->createMock( StripState::class );
$mockStripState->method( 'unstripBoth' )->willReturnArgument( 0 );
$stack = $this->newStack();
for ( $i = 0; $i < count( $refs ); $i++ ) {
$result = $stack->pushRef(
$mockStripState,
...$refs[$i]
);
$this->assertArrayHasKey( $i, $expectedOutputs,
'Bad test, not enough expected outputs in fixture.' );
$this->assertSame( $expectedOutputs[$i], $result );
}
$this->assertSame( $finalRefs, $stack->refs );
$this->assertSame( $finalCallStack, $stack->refCallStack );
}
public static function providePushRef() {
return [
'Anonymous ref in default group' => [
'refs' => [
[ 'text', [], '', null, null, null, 'rtl' ]
],
'expectedOutputs' => [
[
'count' => -1,
'dir' => 'rtl',
'key' => 1,
'name' => null,
'text' => 'text',
'number' => 1,
]
],
'finalRefs' => [
'' => [
[
'count' => -1,
'dir' => 'rtl',
'key' => 1,
'name' => null,
'text' => 'text',
'number' => 1,
]
]
],
'finalCallStack' => [
[ 'new', 1, '', null, null, 'text', [] ],
]
],
'Anonymous ref in named group' => [
'refs' => [
[ 'text', [], 'foo', null, null, null, 'rtl' ]
],
'expectedOutputs' => [
[
'count' => -1,
'dir' => 'rtl',
'key' => 1,
'name' => null,
'text' => 'text',
'number' => 1,
]
],
'finalRefs' => [
'foo' => [
[
'count' => -1,
'dir' => 'rtl',
'key' => 1,
'name' => null,
'text' => 'text',
'number' => 1,
]
]
],
'finalCallStack' => [
[ 'new', 1, 'foo', null, null, 'text', [] ],
]
],
'Ref with text' => [
'refs' => [
[ 'text', [], 'foo', null, null, null, 'rtl' ]
],
'expectedOutputs' => [
[
'count' => -1,
'dir' => 'rtl',
'key' => 1,
'name' => null,
'text' => 'text',
'number' => 1,
]
],
'finalRefs' => [
'foo' => [
[
'count' => -1,
'dir' => 'rtl',
'key' => 1,
'name' => null,
'text' => 'text',
'number' => 1,
]
]
],
'finalCallStack' => [
[ 'new', 1, 'foo', null, null, 'text', [] ],
]
],
'Named ref with text' => [
'refs' => [
[ 'text', [], 'foo', 'name', null, null, 'rtl' ]
],
'expectedOutputs' => [
[
'count' => 0,
'dir' => 'rtl',
'key' => 1,
'name' => 'name',
'text' => 'text',
'number' => 1,
],
],
'finalRefs' => [
'foo' => [
'name' => [
'count' => 0,
'dir' => 'rtl',
'key' => 1,
'name' => 'name',
'text' => 'text',
'number' => 1,
]
]
],
'finalCallStack' => [
[ 'new', 1, 'foo', 'name', null, 'text', [] ],
]
],
'Follow after base' => [
'refs' => [
[ 'text-a', [], 'foo', 'a', null, null, 'rtl' ],
[ 'text-b', [], 'foo', 'b', null, 'a', 'rtl' ]
],
'expectedOutputs' => [
[
'count' => 0,
'dir' => 'rtl',
'key' => 1,
'name' => 'a',
'text' => 'text-a',
'number' => 1,
],
null
],
'finalRefs' => [
'foo' => [
'a' => [
'count' => 0,
'dir' => 'rtl',
'key' => 1,
'name' => 'a',
'text' => 'text-a text-b',
'number' => 1,
]
]
],
'finalCallStack' => [
[ 'new', 1, 'foo', 'a', null, 'text-a', [] ],
]
],
'Follow with no base' => [
'refs' => [
[ 'text', [], 'foo', null, null, 'a', 'rtl' ]
],
'expectedOutputs' => [
null
],
'finalRefs' => [
'foo' => [
[
'count' => -1,
'dir' => 'rtl',
'key' => 1,
'name' => null,
'text' => 'text',
'follow' => 'a',
]
]
],
'finalCallStack' => [
[ 'new', 1, 'foo', null, null, 'text', [] ],
]
],
'Follow pointing to later ref' => [
'refs' => [
[ 'text-a', [], 'foo', 'a', null, null, 'rtl' ],
[ 'text-b', [], 'foo', null, null, 'c', 'rtl' ],
[ 'text-c', [], 'foo', 'c', null, null, 'rtl' ]
],
'expectedOutputs' => [
[
'count' => 0,
'dir' => 'rtl',
'key' => 1,
'name' => 'a',
'text' => 'text-a',
'number' => 1,
],
null,
[
'count' => 0,
'dir' => 'rtl',
'key' => 3,
'name' => 'c',
'text' => 'text-c',
'number' => 2,
]
],
'finalRefs' => [
'foo' => [
'a' => [
'count' => 0,
'dir' => 'rtl',
'key' => 1,
'name' => 'a',
'text' => 'text-a',
'number' => 1,
],
0 => [
'count' => -1,
'dir' => 'rtl',
'key' => 2,
'name' => null,
'text' => 'text-b',
'follow' => 'c',
],
'c' => [
'count' => 0,
'dir' => 'rtl',
'key' => 3,
'name' => 'c',
'text' => 'text-c',
'number' => 2,
]
]
],
'finalCallStack' => [
[ 'new', 1, 'foo', 'a', null, 'text-a', [] ],
[ 'new', 2, 'foo', null, null, 'text-b', [] ],
[ 'new', 3, 'foo', 'c', null, 'text-c', [] ],
]
],
'Repeated ref, text in first tag' => [
'refs' => [
[ 'text', [], 'foo', 'a', null, null, 'rtl' ],
[ null, [], 'foo', 'a', null, null, 'rtl' ]
],
'expectedOutputs' => [
[
'count' => 0,
'dir' => 'rtl',
'key' => 1,
'name' => 'a',
'text' => 'text',
'number' => 1,
],
[
'count' => 1,
'dir' => 'rtl',
'key' => 1,
'name' => 'a',
'text' => 'text',
'number' => 1,
],
],
'finalRefs' => [
'foo' => [
'a' => [
'count' => 1,
'dir' => 'rtl',
'key' => 1,
'name' => 'a',
'text' => 'text',
'number' => 1,
]
]
],
'finalCallStack' => [
[ 'new', 1, 'foo', 'a', null, 'text', [] ],
[ 'increment', 1, 'foo', 'a', null, null, [] ],
]
],
'Repeated ref, text in second tag' => [
'refs' => [
[ null, [], 'foo', 'a', null, null, 'rtl' ],
[ 'text', [], 'foo', 'a', null, null, 'rtl' ]
],
'expectedOutputs' => [
[
'count' => 0,
'dir' => 'rtl',
'key' => 1,
'name' => 'a',
'text' => null,
'number' => 1,
],
[
'count' => 1,
'dir' => 'rtl',
'key' => 1,
'name' => 'a',
'text' => 'text',
'number' => 1,
]
],
'finalRefs' => [
'foo' => [
'a' => [
'count' => 1,
'dir' => 'rtl',
'key' => 1,
'name' => 'a',
'text' => 'text',
'number' => 1,
]
]
],
'finalCallStack' => [
[ 'new', 1, 'foo', 'a', null, null, [] ],
[ 'assign', 1, 'foo', 'a', null, 'text', [] ],
]
],
'Repeated ref, mismatched text' => [
'refs' => [
[ 'text-1', [], 'foo', 'a', null, null, 'rtl' ],
[ 'text-2', [], 'foo', 'a', null, null, 'rtl' ]
],
'expectedOutputs' => [
[
'count' => 0,
'dir' => 'rtl',
'key' => 1,
'name' => 'a',
'text' => 'text-1',
'number' => 1,
],
[
'count' => 1,
'dir' => 'rtl',
'key' => 1,
'name' => 'a',
'text' => 'text-1',
'number' => 1,
'warnings' => [ [ 'cite_error_references_duplicate_key', 'a' ] ],
]
],
'finalRefs' => [
'foo' => [
'a' => [
'count' => 1,
'dir' => 'rtl',
'key' => 1,
'name' => 'a',
'text' => 'text-1',
'number' => 1,
'warnings' => [ [ 'cite_error_references_duplicate_key', 'a' ] ],
]
]
],
'finalCallStack' => [
[ 'new', 1, 'foo', 'a', null, 'text-1', [] ],
[ 'increment', 1, 'foo', 'a', null, 'text-2', [] ],
]
],
'Named extends with no parent' => [
'refs' => [
[ 'text-a', [], 'foo', 'a', 'b', null, 'rtl' ],
],
'expectedOutputs' => [
[
'count' => 0,
'dir' => 'rtl',
'key' => 1,
'name' => 'a',
'text' => 'text-a',
'number' => 1,
'extends' => 'b',
'extendsIndex' => 1,
],
],
'finalRefs' => [
'foo' => [
'a' => [
'count' => 0,
'dir' => 'rtl',
'key' => 1,
'name' => 'a',
'text' => 'text-a',
'number' => 1,
'extends' => 'b',
'extendsIndex' => 1,
],
'b' => [
'number' => 1,
'__placeholder__' => true,
]
]
],
'finalCallStack' => [
[ 'new', 1, 'foo', 'a', 'b', 'text-a', [] ],
]
],
'Named extends before parent' => [
'refs' => [
[ 'text-a', [], 'foo', 'a', 'b', null, 'rtl' ],
[ 'text-b', [], 'foo', 'b', null, null, 'rtl' ],
],
'expectedOutputs' => [
[
'count' => 0,
'dir' => 'rtl',
'key' => 1,
'name' => 'a',
'text' => 'text-a',
'number' => 1,
'extends' => 'b',
'extendsIndex' => 1,
],
[
'count' => 0,
'dir' => 'rtl',
'key' => 2,
'name' => 'b',
'text' => 'text-b',
'number' => 1,
]
],
'finalRefs' => [
'foo' => [
'a' => [
'count' => 0,
'dir' => 'rtl',
'key' => 1,
'name' => 'a',
'text' => 'text-a',
'number' => 1,
'extends' => 'b',
'extendsIndex' => 1,
],
'b' => [
'count' => 0,
'dir' => 'rtl',
'key' => 2,
'name' => 'b',
'text' => 'text-b',
'number' => 1,
]
]
],
'finalCallStack' => [
[ 'new', 1, 'foo', 'a', 'b', 'text-a', [] ],
[ 'new-from-placeholder', 2, 'foo', 'b', null, 'text-b', [] ],
]
],
'Named extends after parent' => [
'refs' => [
[ 'text-a', [], 'foo', 'a', null, null, 'rtl' ],
[ 'text-b', [], 'foo', 'b', 'a', null, 'rtl' ],
],
'expectedOutputs' => [
[
'count' => 0,
'dir' => 'rtl',
'key' => 1,
'name' => 'a',
'text' => 'text-a',
'number' => 1,
],
[
'count' => 0,
'dir' => 'rtl',
'key' => 2,
'name' => 'b',
'text' => 'text-b',
'number' => 1,
'extends' => 'a',
'extendsIndex' => 1,
]
],
'finalRefs' => [
'foo' => [
'a' => [
'count' => 0,
'dir' => 'rtl',
'key' => 1,
'name' => 'a',
'text' => 'text-a',
'number' => 1,
],
'b' => [
'count' => 0,
'dir' => 'rtl',
'key' => 2,
'name' => 'b',
'text' => 'text-b',
'number' => 1,
'extends' => 'a',
'extendsIndex' => 1,
]
]
],
'finalCallStack' => [
[ 'new', 1, 'foo', 'a', null, 'text-a', [] ],
[ 'new', 2, 'foo', 'b', 'a', 'text-b', [] ],
]
],
'Anonymous extends with no parent' => [
'refs' => [
[ 'text-a', [], 'foo', null, 'b', null, 'rtl' ],
],
'expectedOutputs' => [
[
'count' => -1,
'dir' => 'rtl',
'key' => 1,
'name' => null,
'text' => 'text-a',
'number' => 1,
'extends' => 'b',
'extendsIndex' => 1,
]
],
'finalRefs' => [
'foo' => [
0 => [
'count' => -1,
'dir' => 'rtl',
'key' => 1,
'name' => null,
'text' => 'text-a',
'number' => 1,
'extends' => 'b',
'extendsIndex' => 1,
],
'b' => [
'number' => 1,
'__placeholder__' => true,
]
],
],
'finalCallStack' => [
[ 'new', 1, 'foo', null, 'b', 'text-a', [] ],
]
],
'Anonymous extends before parent' => [
'refs' => [
[ 'text-a', [], 'foo', null, 'b', null, 'rtl' ],
[ 'text-b', [], 'foo', 'b', null, null, 'rtl' ],
],
'expectedOutputs' => [
[
'count' => -1,
'dir' => 'rtl',
'key' => 1,
'name' => null,
'text' => 'text-a',
'number' => 1,
'extends' => 'b',
'extendsIndex' => 1,
],
[
'count' => 0,
'dir' => 'rtl',
'key' => 2,
'name' => 'b',
'text' => 'text-b',
'number' => 1,
]
],
'finalRefs' => [
'foo' => [
0 => [
'count' => -1,
'dir' => 'rtl',
'key' => 1,
'name' => null,
'text' => 'text-a',
'number' => 1,
'extends' => 'b',
'extendsIndex' => 1,
],
'b' => [
'count' => 0,
'dir' => 'rtl',
'key' => 2,
'name' => 'b',
'text' => 'text-b',
'number' => 1,
]
]
],
'finalCallStack' => [
[ 'new', 1, 'foo', null, 'b', 'text-a', [] ],
[ 'new-from-placeholder', 2, 'foo', 'b', null, 'text-b', [] ],
]
],
'Anonymous extends after parent' => [
'refs' => [
[ 'text-a', [], 'foo', 'a', null, null, 'rtl' ],
[ 'text-b', [], 'foo', null, 'a', null, 'rtl' ],
],
'expectedOutputs' => [
[
'count' => 0,
'dir' => 'rtl',
'key' => 1,
'name' => 'a',
'text' => 'text-a',
'number' => 1,
],
[
'count' => -1,
'dir' => 'rtl',
'key' => 2,
'name' => null,
'text' => 'text-b',
'number' => 1,
'extends' => 'a',
'extendsIndex' => 1,
]
],
'finalRefs' => [
'foo' => [
'a' => [
'count' => 0,
'dir' => 'rtl',
'key' => 1,
'name' => 'a',
'text' => 'text-a',
'number' => 1,
],
0 => [
'count' => -1,
'dir' => 'rtl',
'key' => 2,
'name' => null,
'text' => 'text-b',
'number' => 1,
'extends' => 'a',
'extendsIndex' => 1,
]
]
],
'finalCallStack' => [
[ 'new', 1, 'foo', 'a', null, 'text-a', [] ],
[ 'new', 2, 'foo', null, 'a', 'text-b', [] ],
]
],
'Normal after extends' => [
'refs' => [
[ 'text-a', [], 'foo', 'a', null, null, 'rtl' ],
[ 'text-b', [], 'foo', null, 'a', null, 'rtl' ],
[ 'text-c', [], 'foo', 'c', null, null, 'rtl' ],
],
'expectedOutputs' => [
[
'count' => 0,
'dir' => 'rtl',
'key' => 1,
'name' => 'a',
'text' => 'text-a',
'number' => 1,
],
[
'count' => -1,
'dir' => 'rtl',
'key' => 2,
'name' => null,
'text' => 'text-b',
'number' => 1,
'extends' => 'a',
'extendsIndex' => 1,
],
[
'count' => 0,
'dir' => 'rtl',
'key' => 3,
'name' => 'c',
'text' => 'text-c',
'number' => 2,
],
],
'finalRefs' => [
'foo' => [
'a' => [
'count' => 0,
'dir' => 'rtl',
'key' => 1,
'name' => 'a',
'text' => 'text-a',
'number' => 1,
],
0 => [
'count' => -1,
'dir' => 'rtl',
'key' => 2,
'name' => null,
'text' => 'text-b',
'number' => 1,
'extends' => 'a',
'extendsIndex' => 1,
],
'c' => [
'count' => 0,
'dir' => 'rtl',
'key' => 3,
'name' => 'c',
'text' => 'text-c',
'number' => 2,
],
]
],
'finalCallStack' => [
[ 'new', 1, 'foo', 'a', null, 'text-a', [] ],
[ 'new', 2, 'foo', null, 'a', 'text-b', [] ],
[ 'new', 3, 'foo', 'c', null, 'text-c', [] ],
]
],
'Two incomplete follows' => [
'refs' => [
[ 'text-a', [], 'foo', 'a', null, null, 'rtl' ],
[ 'text-b', [], 'foo', null, null, 'd', 'rtl' ],
[ 'text-c', [], 'foo', null, null, 'd', 'rtl' ],
],
'expectedOutputs' => [
[
'count' => 0,
'dir' => 'rtl',
'key' => 1,
'name' => 'a',
'text' => 'text-a',
'number' => 1,
],
null,
null
],
'finalRefs' => [
'foo' => [
'a' => [
'count' => 0,
'dir' => 'rtl',
'key' => 1,
'name' => 'a',
'text' => 'text-a',
'number' => 1,
],
0 => [
'count' => -1,
'dir' => 'rtl',
'key' => 2,
'name' => null,
'text' => 'text-b',
'follow' => 'd',
],
1 => [
'count' => -1,
'dir' => 'rtl',
'key' => 3,
'name' => null,
'text' => 'text-c',
'follow' => 'd',
],
]
],
'finalCallStack' => [
[ 'new', 1, 'foo', 'a', null, 'text-a', [] ],
[ 'new', 2, 'foo', null, null, 'text-b', [] ],
[ 'new', 3, 'foo', null, null, 'text-c', [] ],
]
],
];
}
/**
* @dataProvider provideRollbackRefs
*/
public function testRollbackRefs(
array $initialCallStack,
array $initialRefs,
int $rollbackCount,
$expectedResult,
array $expectedRefs = []
) {
$stack = $this->newStack();
$stack->refCallStack = $initialCallStack;
$stack->refs = $initialRefs;
if ( is_string( $expectedResult ) ) {
$this->expectException( LogicException::class );
$this->expectExceptionMessage( $expectedResult );
}
$redoStack = $stack->rollbackRefs( $rollbackCount );
$this->assertSame( $expectedResult, $redoStack );
$this->assertSame( $expectedRefs, $stack->refs );
}
public static function provideRollbackRefs() {
return [
'Empty stack' => [
'initialCallStack' => [],
'initialRefs' => [],
'rollbackCount' => 0,
'expectedResult' => [],
'expectedRefs' => [],
],
'Attempt to overflow stack bounds' => [
'initialCallStack' => [],
'initialRefs' => [],
'rollbackCount' => 1,
'expectedResult' => [],
'expectedRefs' => [],
],
'Skip invalid refs' => [
'initialCallStack' => [ false ],
'initialRefs' => [],
'rollbackCount' => 1,
'expectedResult' => [],
'expectedRefs' => [],
],
'Missing group' => [
'initialCallStack' => [
[ 'new', 1, 'foo', null, null, 'text', [] ],
],
'initialRefs' => [],
'rollbackCount' => 1,
'expectedResult' => 'Cannot roll back ref with unknown group "foo".',
],
'Find anonymous ref by key' => [
'initialCallStack' => [
[ 'new', 1, 'foo', null, null, 'text', [] ],
],
'initialRefs' => [ 'foo' => [
[
'key' => 1,
],
] ],
'rollbackCount' => 1,
'expectedResult' => [
[ 'text', [] ],
],
'expectedRefs' => [],
],
'Missing anonymous ref' => [
'initialCallStack' => [
[ 'new', 1, 'foo', null, null, 'text', [] ],
],
'initialRefs' => [ 'foo' => [
[
'key' => 2,
],
] ],
'rollbackCount' => 1,
'expectedResult' => 'Cannot roll back unknown ref by key 1.',
],
'Assign text' => [
'initialCallStack' => [
[ 'assign', 1, 'foo', null, null, 'text-2', [] ],
],
'initialRefs' => [ 'foo' => [
[
'count' => 2,
'key' => 1,
'text' => 'text-1',
],
] ],
'rollbackCount' => 1,
'expectedResult' => [
[ 'text-2', [] ],
],
'expectedRefs' => [ 'foo' => [
[
'count' => 1,
'key' => 1,
'text' => null,
],
] ],
],
'Increment' => [
'initialCallStack' => [
[ 'increment', 1, 'foo', null, null, null, [] ],
],
'initialRefs' => [ 'foo' => [
[
'count' => 2,
'key' => 1,
],
] ],
'rollbackCount' => 1,
'expectedResult' => [
[ null, [] ],
],
'expectedRefs' => [ 'foo' => [
[
'count' => 1,
'key' => 1,
],
] ],
],
'Safely ignore placeholder' => [
'initialCallStack' => [
[ 'increment', 1, 'foo', null, null, null, [] ],
],
'initialRefs' => [ 'foo' => [
[
'placeholder' => true,
'number' => 10,
],
[
'count' => 2,
'key' => 1,
],
] ],
'rollbackCount' => 1,
'expectedResult' => [
[ null, [] ],
],
'expectedRefs' => [ 'foo' => [
[
'placeholder' => true,
'number' => 10,
],
[
'count' => 1,
'key' => 1,
],
] ],
],
];
}
public function testRollbackRefs_extends() {
$stack = $this->newStack();
$mockStripState = $this->createMock( StripState::class );
$mockStripState->method( 'unstripBoth' )->willReturnArgument( 0 );
$stack->pushRef(
$mockStripState,
'text', [],
'foo', null, 'a', null, 'rtl'
);
$this->assertSame( 1, $stack->extendsCount['foo']['a'] );
$stack->rollbackRefs( 1 );
$this->assertSame( 0, $stack->extendsCount['foo']['a'] );
}
public function testRemovals() {
$stack = $this->newStack();
$stack->refs = [ 'group1' => [], 'group2' => [] ];
$this->assertSame( [], $stack->popGroup( 'group1' ) );
$this->assertSame( [ 'group2' => [] ], $stack->refs );
}
public function testGetGroups() {
$stack = $this->newStack();
$stack->refs = [ 'havenot' => [], 'have' => [ [ 'ref etc' ] ] ];
$this->assertSame( [ 'have' ], $stack->getGroups() );
}
public function testHasGroup() {
$stack = $this->newStack();
$stack->refs = [ 'present' => [ [ 'ref etc' ] ], 'empty' => [] ];
$this->assertFalse( $stack->hasGroup( 'absent' ) );
$this->assertTrue( $stack->hasGroup( 'present' ) );
$this->assertFalse( $stack->hasGroup( 'empty' ) );
}
public function testGetGroupRefs() {
$stack = $this->newStack();
$stack->refs = [ 'present' => [ [ 'ref etc' ] ], 'empty' => [] ];
$this->assertSame( [], $stack->getGroupRefs( 'absent' ) );
$this->assertSame( [ [ 'ref etc' ] ], $stack->getGroupRefs( 'present' ) );
$this->assertSame( [], $stack->getGroupRefs( 'empty' ) );
}
public function testAppendText() {
$stack = $this->newStack();
$stack->appendText( 'group', 'name', 'set' );
$this->assertSame( [ 'text' => 'set' ], $stack->refs['group']['name'] );
$stack->appendText( 'group', 'name', ' and append' );
$this->assertSame( [ 'text' => 'set and append' ], $stack->refs['group']['name'] );
}
/**
* @return ReferenceStack
*/
private function newStack() {
return TestingAccessWrapper::newFromObject( new ReferenceStack() );
}
}