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CodegenSimpleTester.php
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113 lines (106 loc) · 3.38 KB
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<?hh
/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
require_once('CodegenExpectedFile.php');
require_once('CodegenBaseTest.php');
require_once('TestCodegenConfig.php');
/**
* Runs all the tests found in the test directory (i.e. classes
* that extend CodegenBaseTest).
* For each class, it runs all the methods that start with "test".
* The tests will be checking expected results using the methods
* found in CodegenBaseTest, such as assertUnchanged.
* The tester will show a failure for unexpected cases.
* Tests can also expect an exception as a result, in which case
* the test needs to define a docblock that contains @expectedException
* followed by the exception class.
*/
final class CodegenSimpleTester {
/**
* Run all the tests. Return true if they all succeeded.
*/
public static function run(): bool {
$files = glob(__DIR__.'/*.php');
$fail_count = 0;
foreach ($files as $file) {
$classes = get_declared_classes();
require_once($file);
$test_classes = array_diff(get_declared_classes(), $classes);
foreach ($test_classes as $class) {
$ref = new ReflectionClass($class);
if ($ref->isAbstract()) {
continue;
}
$instance = $ref->newInstance();
if (!$instance instanceof CodegenBaseTest) {
continue;
}
echo sprintf("Start testing %s\n", $class);
$methods = $ref->getMethods();
foreach ($methods as $method) {
$name = $method->getName();
if (!Str::startsWith($name, 'test')) {
continue;
}
$failure = self::runTest($instance, $method);
if ($failure === null) {
echo sprintf(" Test %s \e[0;32mpassed\e[0m\n", $name);
} else {
$fail_count++;
echo
sprintf(" Test %s \e[0;31mfailed\e[0m: %s\n", $name, $failure);
}
}
}
}
if ($fail_count === 0) {
echo "\e[0;32m** All the tests passed! **\e[0m\n";
return true;
} else {
echo sprintf("\e[0;31m** ERROR: %d test failures **\e[0m\n", $fail_count);
return false;
}
}
/**
* Run a test method.
*
* @return a string containing the failure message, or null if the test
* passed
*/
private static function runTest(
CodegenBaseTest $instance,
ReflectionMethod $method,
): ?string {
$doc_block = $method->getDocComment();
$expected_exception = null;
if (is_string($doc_block)) {
foreach (explode("\n", $doc_block) as $line) {
$find = strstr($line, '@expectedException');
if ($find) {
$expected_exception = trim(substr($find, 19));
}
}
}
try {
$method->invoke($instance);
if ($expected_exception) {
return "Expected exception $expected_exception, nothing was thrown";
}
} catch (Exception $ex) {
if ($expected_exception === null) {
return $ex->getMessage();
} else if (get_class($ex) !== $expected_exception) {
return
"Expected exception $expected_exception, ".get_class($ex).
" was thrown instead";
}
}
return null;
}
}