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			77 lines
		
	
	
		
			3.1 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			77 lines
		
	
	
		
			3.1 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| // Copyright 2018 the V8 project authors. All rights reserved.
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| // Redistribution and use in source and binary forms, with or without
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| // modification, are permitted provided that the following conditions are
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| // met:
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| //
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| //     * Redistributions of source code must retain the above copyright
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| //       notice, this list of conditions and the following disclaimer.
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| //     * Redistributions in binary form must reproduce the above
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| //       copyright notice, this list of conditions and the following
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| //       disclaimer in the documentation and/or other materials provided
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| //       with the distribution.
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| //     * Neither the name of Google Inc. nor the names of its
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| //       contributors may be used to endorse or promote products derived
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| //       from this software without specific prior written permission.
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| //
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| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 
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| // Flags: --expose-async-hooks
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| 
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| // Check for invalid arguments handling
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| (function() {
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|   assertTrue(async_hooks.hasOwnProperty('createHook'),
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|     'Async hooks missing createHook method');
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| 
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|   assertThrows(() => async_hooks.createHook());
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|   assertThrows(() => async_hooks.createHook(123));
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|   assertThrows(() => async_hooks.createHook('str'));
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| })();
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| 
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| // Check for correct API methods
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| (function() {
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|   assertTrue(async_hooks.hasOwnProperty('executionAsyncId'),
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|     'Async hooks missing executionAsyncId method');
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|   assertTrue(async_hooks.hasOwnProperty('triggerAsyncId'),
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|     'Async hooks missing triggerAsyncId method');
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| 
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|   let ah = async_hooks.createHook({});
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|   assertTrue(ah.hasOwnProperty('enable'), 'Async hooks missing enable method');
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|   assertTrue(ah.hasOwnProperty('disable'),
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|     'Async hooks missing disable method');
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| })();
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| 
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| // Check for correct enabling/disabling of async hooks
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| (function() {
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|   let storedPromise;
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|   let ah = async_hooks.createHook({
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|     init(asyncId, type, triggerAsyncId, resource) {
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|       storedPromise = resource.promise || resource;
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|     }
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|   });
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|   ah.enable();
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| 
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|   let createdPromise = new Promise(function(resolve) {
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|     resolve(42);
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|   });
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|   assertSame(storedPromise, createdPromise,
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|     "Async hooks weren't enabled correctly");
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|   ah.disable();
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|   createdPromise = Promise.resolve(52);
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|   assertNotSame(storedPromise, createdPromise,
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|     "Async hooks weren't disabled correctly");
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|   ah.enable();
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|   createdPromise = Promise.resolve(62);
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|   assertSame(storedPromise, createdPromise,
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|     "Async hooks weren't enabled correctly");
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| })();
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