Skip test for "recognizePDF without DOI" on Travis-CI

Breaks due to CAPTCHA when tests are run frequently

test/runtests.sh

@@ -77,11 +77,15 @@ user_pref("extensions.zotero.firstRunGuidance", false);
 user_pref("extensions.zotero.firstRun2", false);
 EOF
 
-
+# -v flag on Windows makes Firefox process hang
 if [ -z $IS_CYGWIN ]; then
 	echo "`MOZ_NO_REMOTE=1 NO_EM_RESTART=1 \"$FX_EXECUTABLE\" -v`"
 fi
 
+if [ "$TRAVIS" = true ]; then
+	FX_ARGS="$FX_ARGS --ZoteroNoUserInput"
+fi
+
 makePath FX_PROFILE "$PROFILE"
 MOZ_NO_REMOTE=1 NO_EM_RESTART=1 "$FX_EXECUTABLE" -profile "$FX_PROFILE" \
     -chrome chrome://zotero-unit/content/runtests.html -test "$TESTS" $FX_ARGS

test/tests/recognizePDF.js

@@ -38,6 +38,8 @@ describe("PDF Recognition", function() {
 	});
 
 	it("should recognize a PDF without a DOI", function() {
+		if (Zotero.noUserInput) this.skip(); // CAPTCHAs make this fail
+		
 		this.timeout(30000);
 		// Import the PDF
 		var testdir = getTestDataDirectory();