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convert-bson-corpus-tests.php
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convert-bson-corpus-tests.php
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<?php
require_once __DIR__ . '/../tests/utils/tools.php';
$expectedFailures = [
'Double type: 1.23456789012345677E+18' => 'Variation in double\'s string representation (SPEC-850)',
'Double type: -1.23456789012345677E+18' => 'Variation in double\'s string representation (SPEC-850)',
'Int64 type: -1' => 'PHP encodes integers as 32-bit if range allows',
'Int64 type: 0' => 'PHP encodes integers as 32-bit if range allows',
'Int64 type: 1' => 'PHP encodes integers as 32-bit if range allows',
'Javascript Code with Scope: Unicode and embedded null in code string, empty scope' => 'Embedded null in code string is not supported in libbson (CDRIVER-1879)',
'Multiple types within the same document: All BSON types' => 'PHP encodes integers as 32-bit if range allows',
'Top-level document validity: Bad $date (number, not string or hash)' => 'Legacy extended JSON $date syntax uses numbers (CDRIVER-2223)',
];
$for64bitOnly = [
/* Note: Although 64-bit integers be represented by the Int64 class, these
* tests fail on 32-bit platforms due to json_canonicalize() roundtripping
* values through PHP, which converts large integers to floats. */
'Int64 type: MinValue' => "Can't represent 64-bit ints on a 32-bit platform",
'Int64 type: MaxValue' => "Can't represent 64-bit ints on a 32-bit platform",
];
$outputPath = realpath(__DIR__ . '/../tests') . '/bson-corpus/';
if ( ! is_dir($outputPath) && ! mkdir($outputPath, 0755, true)) {
printf("Error creating output path: %s\n", $outputPath);
}
foreach (array_slice($argv, 1) as $inputFile) {
if ( ! is_readable($inputFile) || ! is_file($inputFile)) {
printf("Error reading %s\n", $inputFile);
continue;
}
$test = json_decode(file_get_contents($inputFile), true);
if (json_last_error() !== JSON_ERROR_NONE) {
printf("Error decoding %s: %s\n", $inputFile, json_last_error_msg());
continue;
}
if ( ! isset($test['description'])) {
printf("Skipping test file without \"description\" field: %s\n", $inputFile);
continue;
}
if ( ! empty($test['valid'])) {
foreach ($test['valid'] as $i => $case) {
$outputFile = sprintf('%s-valid-%03d.phpt', pathinfo($inputFile, PATHINFO_FILENAME), $i + 1);
try {
$output = renderPhpt(getParamsForValid($test, $case), $expectedFailures, $for64bitOnly);
} catch (Exception $e) {
printf("Error processing valid[%d] in %s: %s\n", $i, $inputFile, $e->getMessage());
continue;
}
if (false === file_put_contents($outputPath . '/' . $outputFile, $output)) {
printf("Error writing valid[%d] in %s\n", $i, $inputFile);
continue;
}
}
}
if ( ! empty($test['decodeErrors'])) {
foreach ($test['decodeErrors'] as $i => $case) {
$outputFile = sprintf('%s-decodeError-%03d.phpt', pathinfo($inputFile, PATHINFO_FILENAME), $i + 1);
try {
$output = renderPhpt(getParamsForDecodeError($test, $case), $expectedFailures, $for64bitOnly);
} catch (Exception $e) {
printf("Error processing decodeErrors[%d] in %s: %s\n", $i, $inputFile, $e->getMessage());
continue;
}
if (false === file_put_contents($outputPath . '/' . $outputFile, $output)) {
printf("Error writing decodeErrors[%d] in %s\n", $i, $inputFile);
continue;
}
}
}
if ( ! empty($test['parseErrors'])) {
foreach ($test['parseErrors'] as $i => $case) {
$outputFile = sprintf('%s-parseError-%03d.phpt', pathinfo($inputFile, PATHINFO_FILENAME), $i + 1);
try {
$output = renderPhpt(getParamsForParseError($test, $case), $expectedFailures, $for64bitOnly);
} catch (Exception $e) {
printf("Error processing parseErrors[%d] in %s: %s\n", $i, $inputFile, $e->getMessage());
continue;
}
if (false === file_put_contents($outputPath . '/' . $outputFile, $output)) {
printf("Error writing parseErrors[%d] in %s\n", $i, $inputFile);
continue;
}
}
}
}
function getParamsForValid(array $test, array $case)
{
foreach (['description', 'canonical_bson', 'canonical_extjson'] as $field) {
if (!isset($case[$field])) {
throw new InvalidArgumentException(sprintf('Missing "%s" field', $field));
}
}
$code = '';
$expect = '';
$lossy = isset($case['lossy']) ? (boolean) $case['lossy'] : false;
$canonicalBson = $case['canonical_bson'];
$expectedCanonicalBson = strtolower($canonicalBson);
$code .= sprintf('$canonicalBson = hex2bin(%s);', var_export($canonicalBson, true)) . "\n";
if (isset($case['degenerate_bson'])) {
$degenerateBson = $case['degenerate_bson'];
$expectedDegenerateBson = strtolower($degenerateBson);
$code .= sprintf('$degenerateBson = hex2bin(%s);', var_export($degenerateBson, true)) . "\n";
}
if (isset($case['converted_bson'])) {
$convertedBson = $case['converted_bson'];
$expectedConvertedBson = strtolower($convertedBson);
$code .= sprintf('$convertedBson = hex2bin(%s);', var_export($convertedBson, true)) . "\n";
}
$canonicalExtJson = $case['canonical_extjson'];
$expectedCanonicalExtJson = json_canonicalize($canonicalExtJson);
$code .= sprintf('$canonicalExtJson = %s;', var_export($canonicalExtJson, true)) . "\n";
if (isset($case['relaxed_extjson'])) {
$relaxedExtJson = $case['relaxed_extjson'];
$expectedRelaxedExtJson = json_canonicalize($relaxedExtJson);
$code .= sprintf('$relaxedExtJson = %s;', var_export($relaxedExtJson, true)) . "\n";
}
if (isset($case['degenerate_extjson'])) {
$degenerateExtJson = $case['degenerate_extjson'];
$expectedDegenerateExtJson = json_canonicalize($degenerateExtJson);
$code .= sprintf('$degenerateExtJson = %s;', var_export($degenerateExtJson, true)) . "\n";
}
if (isset($case['converted_extjson'])) {
$convertedExtJson = $case['converted_extjson'];
$expectedConvertedExtJson = json_canonicalize($convertedExtJson);
$code .= sprintf('$convertedExtJson = %s;', var_export($convertedExtJson, true)) . "\n";
}
$code .= "\n// Canonical BSON -> Native -> Canonical BSON \n";
$code .= 'echo bin2hex(fromPHP(toPHP($canonicalBson))), "\n";' . "\n";
$expect .= $expectedCanonicalBson . "\n";
$code .= "\n// Canonical BSON -> Canonical extJSON \n";
$code .= 'echo json_canonicalize(toCanonicalExtendedJSON($canonicalBson)), "\n";' . "\n";;
$expect .= $expectedCanonicalExtJson . "\n";
if (isset($relaxedExtJson)) {
$code .= "\n// Canonical BSON -> Relaxed extJSON \n";
$code .= 'echo json_canonicalize(toRelaxedExtendedJSON($canonicalBson)), "\n";' . "\n";;
$expect .= $expectedRelaxedExtJson . "\n";
}
if (!$lossy) {
$code .= "\n// Canonical extJSON -> Canonical BSON \n";
$code .= 'echo bin2hex(fromJSON($canonicalExtJson)), "\n";' . "\n";
$expect .= $expectedCanonicalBson . "\n";
}
if (isset($degenerateBson)) {
$code .= "\n// Degenerate BSON -> Native -> Canonical BSON \n";
$code .= 'echo bin2hex(fromPHP(toPHP($degenerateBson))), "\n";' . "\n";
$expect .= $expectedCanonicalBson . "\n";
$code .= "\n// Degenerate BSON -> Canonical extJSON \n";
$code .= 'echo json_canonicalize(toCanonicalExtendedJSON($degenerateBson)), "\n";' . "\n";;
$expect .= $expectedCanonicalExtJson . "\n";
if (isset($relaxedExtJson)) {
$code .= "\n// Degenerate BSON -> Relaxed extJSON \n";
$code .= 'echo json_canonicalize(toRelaxedExtendedJSON($degenerateBson)), "\n";' . "\n";;
$expect .= $expectedRelaxedExtJson . "\n";
}
}
if (isset($degenerateExtJson) && !$lossy) {
$code .= "\n// Degenerate extJSON -> Canonical BSON \n";
$code .= 'echo bin2hex(fromJSON($degenerateExtJson)), "\n";' . "\n";
$expect .= $expectedCanonicalBson . "\n";
}
if (isset($relaxedExtJson)) {
$code .= "\n// Relaxed extJSON -> BSON -> Relaxed extJSON \n";
$code .= 'echo json_canonicalize(toRelaxedExtendedJSON(fromJSON($relaxedExtJson))), "\n";' . "\n";
$expect .= $expectedRelaxedExtJson . "\n";
}
return [
'%NAME%' => sprintf('%s: %s', trim($test['description']), trim($case['description'])),
'%CODE%' => trim($code),
'%EXPECT%' => trim($expect),
];
}
function getParamsForDecodeError(array $test, array $case)
{
foreach (['description', 'bson'] as $field) {
if (!isset($case[$field])) {
throw new InvalidArgumentException(sprintf('Missing "%s" field', $field));
}
}
$code = sprintf('$bson = hex2bin(%s);', var_export($case['bson'], true)) . "\n\n";
$code .= "throws(function() use (\$bson) {\n";
$code .= " var_dump(toPHP(\$bson));\n";
$code .= "}, 'MongoDB\Driver\Exception\UnexpectedValueException');";
/* We do not test for the exception message, since that may differ based on
* the nature of the decoding error. */
$expect = "OK: Got MongoDB\Driver\Exception\UnexpectedValueException";
return [
'%NAME%' => sprintf('%s: %s', trim($test['description']), trim($case['description'])),
'%CODE%' => trim($code),
'%EXPECT%' => trim($expect),
];
}
function getParamsForParseError(array $test, array $case)
{
foreach (['description', 'string'] as $field) {
if (!isset($case[$field])) {
throw new InvalidArgumentException(sprintf('Missing "%s" field', $field));
}
}
$code = '';
$expect = '';
switch ($test['bson_type']) {
case '0x00': // Top-level document
$code = "throws(function() {\n";
$code .= sprintf(" fromJSON(%s);\n", var_export($case['string'], true));
$code .= "}, 'MongoDB\Driver\Exception\UnexpectedValueException');";
/* We do not test for the exception message, since that may differ
* based on the nature of the parse error. */
$expect = "OK: Got MongoDB\Driver\Exception\UnexpectedValueException";
break;
case '0x13': // Decimal128
$code = "throws(function() {\n";
$code .= sprintf(" new MongoDB\BSON\Decimal128(%s);\n", var_export($case['string'], true));
$code .= "}, 'MongoDB\Driver\Exception\InvalidArgumentException');";
/* We do not test for the exception message, since that may differ
* based on the nature of the parse error. */
$expect = "OK: Got MongoDB\Driver\Exception\InvalidArgumentException";
break;
default:
throw new UnexpectedValueException(sprintf("Parse errors not supported for BSON type: %s", $test['bson_type']));
}
return [
'%NAME%' => sprintf('%s: %s', trim($test['description']), trim($case['description'])),
'%CODE%' => trim($code),
'%EXPECT%' => trim($expect),
];
}
function renderPhpt(array $params, array $expectedFailures, array $for64bitOnly)
{
$params['%XFAIL%'] = isset($expectedFailures[$params['%NAME%']])
? "--XFAIL--\n" . $expectedFailures[$params['%NAME%']] . "\n"
: '';
$params['%SKIPIF%'] = isset($for64bitOnly[$params['%NAME%']])
? "--SKIPIF--\n" . "<?php if (PHP_INT_SIZE !== 8) { die(\"skip {$for64bitOnly[$params['%NAME%']]}\"); } ?>" . "\n"
: '';
$template = <<< 'TEMPLATE'
--TEST--
%NAME%
%XFAIL%%SKIPIF%--DESCRIPTION--
Generated by scripts/convert-bson-corpus-tests.php
DO NOT EDIT THIS FILE
--FILE--
<?php
require_once __DIR__ . '/../utils/tools.php';
%CODE%
?>
===DONE===
<?php exit(0); ?>
--EXPECT--
%EXPECT%
===DONE===
TEMPLATE;
return str_replace(array_keys($params), array_values($params), $template);
}

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