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<?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;
}
}
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