1 files changed, 62 insertions, 0 deletions
diff --git a/MLEB/Translate/tests/phpunit/unit/MessageValidator/Validators/PrintfValidatorTest.php b/MLEB/Translate/tests/phpunit/unit/MessageValidator/Validators/PrintfValidatorTest.php
new file mode 100644
index 00000000..6ea13a10
--- /dev/null
+++ b/MLEB/Translate/tests/phpunit/unit/MessageValidator/Validators/PrintfValidatorTest.php
@@ -0,0 +1,62 @@
+<?php
+declare( strict_types = 1 );
+
+use MediaWiki\Extensions\Translate\MessageValidator\Validators\PrintfValidator;
+
+/**
+ * @license GPL-2.0-or-later
+ * @covers \MediaWiki\Extensions\Translate\MessageValidator\Validators\PrintfValidator
+ */
+class PrintfValidatorTest extends BaseValidatorTestCase {
+	/** @dataProvider provideTestCases */
+	public function test( ...$params ) {
+		$this->runValidatorTests( new PrintfValidator(), 'variable', ...$params );
+	}
+
+	public static function provideTestCases() {
+		$key = 'key';
+		$code = 'en';
+
+		yield [
+			'%2$f',
+			'a',
+			[ 'missing' ],
+			'missing positional variable is an issue'
+		];
+
+		yield [
+			'%2$f',
+			'%3$d',
+			[ 'missing', 'unknown' ],
+			'typoed variable is two issues'
+		];
+
+		yield [
+			'abc',
+			'%4$d',
+			[ 'unknown' ],
+			'unknown positional variable is an issue'
+		];
+
+		yield [
+			'%2$f',
+			'%2$f',
+			[],
+			'all variables are used, no issues'
+		];
+
+		yield [
+			'%2$.2f',
+			'%2$f',
+			[ 'missing', 'unknown' ],
+			'changing precision is not supported'
+		];
+
+		yield [
+			'%.2f',
+			'%2$f',
+			[ 'missing', 'unknown' ],
+			'changing precision and position is not supported'
+		];
+	}
+}