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Diffstat (limited to 'tests/phpunit/includes/json/FormatJsonTest.php')
| -rw-r--r-- | tests/phpunit/includes/json/FormatJsonTest.php | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/tests/phpunit/includes/json/FormatJsonTest.php b/tests/phpunit/includes/json/FormatJsonTest.php new file mode 100644 index 00000000..149be05b --- /dev/null +++ b/tests/phpunit/includes/json/FormatJsonTest.php @@ -0,0 +1,161 @@ +<?php + +class FormatJsonTest extends MediaWikiTestCase { + + public function testEncoderPrettyPrinting() { + $obj = array( + 'emptyObject' => new stdClass, + 'emptyArray' => array(), + 'string' => 'foobar\\', + 'filledArray' => array( + array( + 123, + 456, + ), + // Nested json works without problems + '"7":["8",{"9":"10"}]', + // Whitespace clean up doesn't touch strings that look alike + "{\n\t\"emptyObject\": {\n\t},\n\t\"emptyArray\": [ ]\n}", + ), + ); + + // 4 space indent, no trailing whitespace, no trailing linefeed + $json = '{ + "emptyObject": {}, + "emptyArray": [], + "string": "foobar\\\\", + "filledArray": [ + [ + 123, + 456 + ], + "\"7\":[\"8\",{\"9\":\"10\"}]", + "{\n\t\"emptyObject\": {\n\t},\n\t\"emptyArray\": [ ]\n}" + ] +}'; + + $json = str_replace( "\r", '', $json ); // Windows compat + $this->assertSame( $json, FormatJson::encode( $obj, true ) ); + } + + public static function provideEncodeDefault() { + return self::getEncodeTestCases( array() ); + } + + /** + * @dataProvider provideEncodeDefault + */ + public function testEncodeDefault( $from, $to ) { + $this->assertSame( $to, FormatJson::encode( $from ) ); + } + + public static function provideEncodeUtf8() { + return self::getEncodeTestCases( array( 'unicode' ) ); + } + + /** + * @dataProvider provideEncodeUtf8 + */ + public function testEncodeUtf8( $from, $to ) { + $this->assertSame( $to, FormatJson::encode( $from, false, FormatJson::UTF8_OK ) ); + } + + public static function provideEncodeXmlMeta() { + return self::getEncodeTestCases( array( 'xmlmeta' ) ); + } + + /** + * @dataProvider provideEncodeXmlMeta + */ + public function testEncodeXmlMeta( $from, $to ) { + $this->assertSame( $to, FormatJson::encode( $from, false, FormatJson::XMLMETA_OK ) ); + } + + public static function provideEncodeAllOk() { + return self::getEncodeTestCases( array( 'unicode', 'xmlmeta' ) ); + } + + /** + * @dataProvider provideEncodeAllOk + */ + public function testEncodeAllOk( $from, $to ) { + $this->assertSame( $to, FormatJson::encode( $from, false, FormatJson::ALL_OK ) ); + } + + public function testEncodePhpBug46944() { + $this->assertNotEquals( + '\ud840\udc00', + strtolower( FormatJson::encode( "\xf0\xa0\x80\x80" ) ), + 'Test encoding an broken json_encode character (U+20000)' + ); + } + + public function testDecodeReturnType() { + $this->assertInternalType( + 'object', + FormatJson::decode( '{"Name": "Cheeso", "Rank": 7}' ), + 'Default to object' + ); + + $this->assertInternalType( + 'array', + FormatJson::decode( '{"Name": "Cheeso", "Rank": 7}', true ), + 'Optional array' + ); + } + + /** + * Generate a set of test cases for a particular combination of encoder options. + * + * @param array $unescapedGroups List of character groups to leave unescaped + * @return array: Arrays of unencoded strings and corresponding encoded strings + */ + private static function getEncodeTestCases( array $unescapedGroups ) { + $groups = array( + 'always' => array( + // Forward slash (always unescaped) + '/' => '/', + + // Control characters + "\0" => '\u0000', + "\x08" => '\b', + "\t" => '\t', + "\n" => '\n', + "\r" => '\r', + "\f" => '\f', + "\x1f" => '\u001f', // representative example + + // Double quotes + '"' => '\"', + + // Backslashes + '\\' => '\\\\', + '\\\\' => '\\\\\\\\', + '\\u00e9' => '\\\u00e9', // security check for Unicode unescaping + + // Line terminators + "\xe2\x80\xa8" => '\u2028', + "\xe2\x80\xa9" => '\u2029', + ), + 'unicode' => array( + "\xc3\xa9" => '\u00e9', + "\xf0\x9d\x92\x9e" => '\ud835\udc9e', // U+1D49E, outside the BMP + ), + 'xmlmeta' => array( + '<' => '\u003C', // JSON_HEX_TAG uses uppercase hex digits + '>' => '\u003E', + '&' => '\u0026', + ), + ); + + $cases = array(); + foreach ( $groups as $name => $rules ) { + $leaveUnescaped = in_array( $name, $unescapedGroups ); + foreach ( $rules as $from => $to ) { + $cases[] = array( $from, '"' . ( $leaveUnescaped ? $from : $to ) . '"' ); + } + } + + return $cases; + } +} |