michael@0: /**
michael@0:  * Any copyright is dedicated to the Public Domain.
michael@0:  * http://creativecommons.org/publicdomain/zero/1.0/
michael@0:  */
michael@0: 
michael@0: onmessage = function(event) {
michael@0:   const url = event.data;
michael@0: 
michael@0:   var xhr = new XMLHttpRequest();
michael@0:   xhr.open("GET", url, false);
michael@0:   xhr.send();
michael@0: 
michael@0:   const refText = xhr.responseText;
michael@0: 
michael@0:   function getResponse(type) {
michael@0:     var xhr = new XMLHttpRequest();
michael@0:     xhr.open("GET", url, false);
michael@0:     if (type !== undefined) {
michael@0:       xhr.responseType = type;
michael@0:     }
michael@0:     xhr.send();
michael@0:     return xhr.response;
michael@0:   }
michael@0: 
michael@0:   if (getResponse() != refText) {
michael@0:     throw new Error("unset responseType failed");
michael@0:   }
michael@0: 
michael@0:   if (getResponse("") != refText) {
michael@0:     throw new Error("'' responseType failed");
michael@0:   }
michael@0: 
michael@0:   if (getResponse("text") != refText) {
michael@0:     throw new Error("'text' responseType failed");
michael@0:   }
michael@0: 
michael@0:   var array = new Uint8Array(getResponse("arraybuffer"));
michael@0:   if (String.fromCharCode.apply(String, array) != refText) {
michael@0:     throw new Error("'arraybuffer' responseType failed");
michael@0:   }
michael@0: 
michael@0:   var blob = getResponse("blob");
michael@0:   if (new FileReaderSync().readAsText(blob) != refText) {
michael@0:     throw new Error("'blob' responseType failed");
michael@0:   }
michael@0: 
michael@0:   // Make sure that we get invalid state exceptions when getting the wrong
michael@0:   // property.
michael@0: 
michael@0:   function testResponseTextException(type) {
michael@0:     var xhr = new XMLHttpRequest();
michael@0:     xhr.open("GET", url, false);
michael@0:     xhr.responseType = type;
michael@0:     xhr.send();
michael@0: 
michael@0:     var exception;
michael@0: 
michael@0:     try {
michael@0:       xhr.responseText;
michael@0:     }
michael@0:     catch(e) {
michael@0:       exception = e;
michael@0:     }
michael@0: 
michael@0:     if (!exception) {
michael@0:       throw new Error("Failed to throw when getting responseText on '" + type +
michael@0:                       "' type");
michael@0:     }
michael@0: 
michael@0:     if (exception.name != "InvalidStateError") {
michael@0:       throw new Error("Unexpected error when getting responseText on '" + type +
michael@0:                       "' type");
michael@0:     }
michael@0: 
michael@0:     if (exception.code != DOMException.INVALID_STATE_ERR) {
michael@0:       throw new Error("Unexpected error code when getting responseText on '" + type +
michael@0:                       "' type");
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   testResponseTextException("arraybuffer");
michael@0:   testResponseTextException("blob");
michael@0: 
michael@0:   // Make sure "document" works, but returns text.
michael@0:   xhr = new XMLHttpRequest();
michael@0: 
michael@0:   if (xhr.responseType != "text") {
michael@0:     throw new Error("Default value for responseType is wrong!");
michael@0:   }
michael@0: 
michael@0:   xhr.open("GET", url, false);
michael@0:   xhr.responseType = "document";
michael@0:   xhr.send();
michael@0: 
michael@0:   if (xhr.responseText != refText) {
michael@0:     throw new Error("'document' type not working correctly");
michael@0:   }
michael@0: 
michael@0:   // Make sure setting responseType before open or after send fails.
michael@0:   var exception;
michael@0: 
michael@0:   xhr = new XMLHttpRequest();
michael@0:   try {
michael@0:     xhr.responseType = "arraybuffer";
michael@0:   }
michael@0:   catch(e) {
michael@0:     exception = e;
michael@0:   }
michael@0: 
michael@0:   if (!exception) {
michael@0:     throw new Error("Failed to throw when setting responseType before " +
michael@0:                     "calling open()");
michael@0:   }
michael@0: 
michael@0:   if (exception.name != "InvalidStateError") {
michael@0:     throw new Error("Unexpected error when setting responseType before " +
michael@0:                     "calling open()");
michael@0:   }
michael@0: 
michael@0:   if (exception.code != DOMException.INVALID_STATE_ERR) {
michael@0:     throw new Error("Unexpected error code when setting responseType before " +
michael@0:                     "calling open()");
michael@0:   }
michael@0: 
michael@0:   xhr.open("GET", url);
michael@0:   xhr.responseType = "text";
michael@0:   xhr.onload = function(event) {
michael@0:     if (event.target.response != refText) {
michael@0:       throw new Error("Bad response!");
michael@0:     }
michael@0: 
michael@0:     xhr = new XMLHttpRequest();
michael@0:     xhr.open("GET", url);
michael@0:     xhr.responseType = "moz-chunked-text";
michael@0: 
michael@0:     var lastIndex = 0;
michael@0:     xhr.onprogress = function(event) {
michael@0:       if (refText.substr(lastIndex, xhr.response.length) != xhr.response) {
michael@0:         throw new Error("Bad chunk!");
michael@0:       }
michael@0: 
michael@0:       lastIndex += xhr.response.length;
michael@0:     };
michael@0: 
michael@0:     xhr.onload = function(event) {
michael@0:       if (lastIndex != refText.length) {
michael@0:         throw new Error("Didn't see all the data!");
michael@0:       }
michael@0: 
michael@0:       setTimeout(function() {
michael@0:         if (xhr.response !== null) {
michael@0:           throw new Error("Should have gotten null response outside of event!");
michael@0:         }
michael@0:         postMessage("done");
michael@0:       }, 0);
michael@0:     }
michael@0: 
michael@0:     xhr.send(null);
michael@0:   };
michael@0:   xhr.send();
michael@0: 
michael@0:   exception = null;
michael@0: 
michael@0:   try {
michael@0:     xhr.responseType = "arraybuffer";
michael@0:   }
michael@0:   catch(e) {
michael@0:     exception = e;
michael@0:   }
michael@0: 
michael@0:   if (!exception) {
michael@0:     throw new Error("Failed to throw when setting responseType after " +
michael@0:                     "calling send()");
michael@0:   }
michael@0: 
michael@0:   if (exception.name != "InvalidStateError") {
michael@0:     throw new Error("Unexpected error when setting responseType after " +
michael@0:                     "calling send()");
michael@0:   }
michael@0: 
michael@0:   if (exception.code != DOMException.INVALID_STATE_ERR) {
michael@0:     throw new Error("Unexpected error code when setting responseType after " +
michael@0:                     "calling send()");
michael@0:   }
michael@0: }