Gzip-compress API uploads larger than 1000 characters

test/content/runtests.html

@@ -11,6 +11,7 @@
 	<script src="resource://zotero-unit/mocha/mocha.js"></script>
 	<script src="resource://zotero-unit/sinon.js"></script>
 	<script src="resource://zotero-unit/sinon-as-promised.js"></script>
+	<script src="resource://zotero-unit/pako_inflate.js"></script>
 	<script src="support.js" type="application/javascript;version=1.8"></script>
 	<script src="runtests.js" type="application/javascript;version=1.8"></script>
 </body>

test/content/support.js

@@ -281,6 +281,13 @@ function clickOnItemsRow(itemsView, row, button = 0) {
 }
 
 
+/**
+ * Synchronous inflate
+ */
+function gunzip(gzdata) {
+	return pako.inflate(gzdata, { to: 'string' });
+}
+
 
 /**
  * Get a default group used by all tests that want one, creating one if necessary

test/resource/sinon.js

@@ -5278,6 +5278,11 @@ if (typeof sinon === "undefined") {
                         this.requestHeaders["Content-Type"] = "text/plain;charset=utf-8";
                     }
 
+                    // Added by Zotero
+                    if (this.requestHeaders['Content-Encoding'] == 'gzip') {
+                        data = gunzip(data, true);
+                    }
+
                     this.requestBody = data;
                 }
 

test/tests/utilities_internalTest.js

@@ -12,6 +12,18 @@ describe("Zotero.Utilities.Internal", function () {
 	})
 	
 	
+	describe("#gzip()/gunzip()", function () {
+		it("should compress and decompress a Unicode text string", function* () {
+			var text = "Voilà! \u1F429";
+			var compstr = yield Zotero.Utilities.Internal.gzip(text);
+			assert.isAbove(compstr.length, 0);
+			assert.notEqual(compstr.length, text.length);
+			var str = yield Zotero.Utilities.Internal.gunzip(compstr);
+			assert.equal(str, text);
+		});
+	});
+	
+	
 	describe("#delayGenerator", function () {
 		var spy;