$expected The expected function output for the respective functions. * * @return void */ public function testIsFirstCharCapitalized($input, $expected) { $this->assertSame($expected['capitalized'], Orthography::isFirstCharCapitalized($input)); } /** * Test correctly detecting whether the first character of a phrase is lowercase. * * @dataProvider dataFirstChar * * @param string $input The input string. * @param array $expected The expected function output for the respective functions. * * @return void */ public function testIsFirstCharLowercase($input, $expected) { $this->assertSame($expected['lowercase'], Orthography::isFirstCharLowercase($input)); } /** * Data provider. * * @see testIsFirstCharCapitalized() For the array format. * @see testIsFirstCharLowercase() For the array format. * * @return array>> */ public static function dataFirstChar() { $data = [ // Quotes should be stripped before passing the string. 'double-quoted' => [ 'input' => '"This is a test"', 'expected' => [ 'capitalized' => false, 'lowercase' => false, ], ], 'single-quoted' => [ 'input' => "'This is a test'", 'expected' => [ 'capitalized' => false, 'lowercase' => false, ], ], // Not starting with a letter. 'start-numeric' => [ 'input' => '12 Foostreet', 'expected' => [ 'capitalized' => false, 'lowercase' => false, ], ], 'start-bracket' => [ 'input' => '[Optional]', 'expected' => [ 'capitalized' => false, 'lowercase' => false, ], ], // Leading whitespace. 'english-lowercase-leading-whitespace' => [ 'input' => ' this is a test', 'expected' => [ 'capitalized' => false, 'lowercase' => true, ], ], 'english-propercase-leading-whitespace' => [ 'input' => ' This is a test', 'expected' => [ 'capitalized' => true, 'lowercase' => false, ], ], // First character lowercase. 'english-lowercase' => [ 'input' => 'this is a test', 'expected' => [ 'capitalized' => false, 'lowercase' => true, ], ], 'russian-lowercase' => [ 'input' => 'предназначена для‎', 'expected' => [ 'capitalized' => false, 'lowercase' => true, ], ], 'latvian-lowercase' => [ 'input' => 'ir domāta', 'expected' => [ 'capitalized' => false, 'lowercase' => true, ], ], 'armenian-lowercase' => [ 'input' => 'սա թեստ է', 'expected' => [ 'capitalized' => false, 'lowercase' => true, ], ], 'mandinka-lowercase' => [ 'input' => 'ŋanniya', 'expected' => [ 'capitalized' => false, 'lowercase' => true, ], ], 'greek-lowercase' => [ 'input' => 'δημιουργήθηκε από', 'expected' => [ 'capitalized' => false, 'lowercase' => true, ], ], // First character capitalized. 'english-propercase' => [ 'input' => 'This is a test', 'expected' => [ 'capitalized' => true, 'lowercase' => false, ], ], 'russian-propercase' => [ 'input' => 'Дата написания этой книги', 'expected' => [ 'capitalized' => true, 'lowercase' => false, ], ], 'latvian-propercase' => [ 'input' => 'Šodienas datums', 'expected' => [ 'capitalized' => true, 'lowercase' => false, ], ], 'armenian-propercase' => [ 'input' => 'Սա թեստ է', 'expected' => [ 'capitalized' => true, 'lowercase' => false, ], ], 'igbo-propercase' => [ 'input' => 'Ụbọchị tata bụ', 'expected' => [ 'capitalized' => true, 'lowercase' => false, ], ], 'greek-propercase' => [ 'input' => 'Η σημερινή ημερομηνία', 'expected' => [ 'capitalized' => true, 'lowercase' => false, ], ], // No concept of "case", but starting with a letter. 'arabic' => [ 'input' => 'هذا اختبار', 'expected' => [ 'capitalized' => true, 'lowercase' => false, ], ], 'pashto' => [ 'input' => 'دا یوه آزموینه ده', 'expected' => [ 'capitalized' => true, 'lowercase' => false, ], ], 'hebrew' => [ 'input' => 'זה מבחן', 'expected' => [ 'capitalized' => true, 'lowercase' => false, ], ], 'chinese-traditional' => [ 'input' => '這是一個測試', 'expected' => [ 'capitalized' => true, 'lowercase' => false, ], ], 'urdu' => [ 'input' => 'کا منشاء برائے', 'expected' => [ 'capitalized' => true, 'lowercase' => false, ], ], ]; /* * PCRE2 - included in PHP 7.3+ - recognizes Georgian as a language with * upper and lowercase letters as defined in Unicode v 11.0 / June 2018. * While, as far as I can tell, this is linguistically incorrect - the upper * and lowercase letters are from different alphabets used to write Georgian -, * the unit test should allow for the reality as implemented in ICU/PCRE2/PHP. * * @link https://en.wikipedia.org/wiki/Georgian_scripts#Unicode * @link https://unicode.org/charts/PDF/U10A0.pdf */ if (\PCRE_VERSION >= 10) { $data['georgian'] = [ 'input' => 'ეს ტესტია', 'expected' => [ 'capitalized' => false, 'lowercase' => true, ], ]; } else { $data['georgian'] = [ 'input' => 'ეს ტესტია', 'expected' => [ 'capitalized' => true, 'lowercase' => false, ], ]; } return $data; } }