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			43 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			43 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
// Copyright 2016 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --allow-natives-syntax
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function assertEqualsAsync(expected, run, msg) {
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  var actual;
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  var hadValue = false;
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  var hadError = false;
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  var promise = run();
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  if (typeof promise !== "object" || typeof promise.then !== "function") {
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    throw new MjsUnitAssertionError(
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        "Expected " + run.toString() +
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        " to return a Promise, but it returned " + PrettyPrint(promise));
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  }
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  promise.then(function(value) { hadValue = true; actual = value; },
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               function(error) { hadError = true; actual = error; });
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  assertFalse(hadValue || hadError);
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  %PerformMicrotaskCheckpoint();
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  if (hadError) throw actual;
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  assertTrue(
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      hadValue, "Expected '" + run.toString() + "' to produce a value");
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  assertEquals(expected, actual, msg);
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};
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assertEqualsAsync("[1,2,3]", () => (function() {
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  return (async () => JSON.stringify([...arguments]))();
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})(1, 2, 3));
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assertEqualsAsync("[4,5,6]",
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    () => (function() {
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      return (async () => {
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        return JSON.stringify([...await arguments]) })();
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      })(4, 5, 6));
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