26 lines
		
	
	
		
			731 B
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
			
		
		
	
	
			26 lines
		
	
	
		
			731 B
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
/**
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 * Wraps a test function in an asynchronous test zone. The test will automatically
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 * complete when all asynchronous calls within this zone are done. Can be used
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 * to wrap an {@link inject} call.
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 *
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 * Example:
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 *
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 * ```
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 * it('...', async(inject([AClass], (object) => {
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 *   object.doSomething.then(() => {
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 *     expect(...);
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 *   })
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 * });
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 * ```
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 */
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export function async(fn: Function): Function {
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  return () => {
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    return new Promise<void>((finishCallback, failCallback) => {
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      var AsyncTestZoneSpec = Zone['AsyncTestZoneSpec'];
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      var testZoneSpec = new AsyncTestZoneSpec(finishCallback, failCallback, 'test');
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      var testZone = Zone.current.fork(testZoneSpec);
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      return testZone.run(fn);
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    });
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  }
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}
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