qunit: Improve testrunner logging for pending ajax

* Move `restoreWarnings()` in tearDown() to the mirrored location
  of related code in setUp().

* Ensure that accidentally calling `suppressWarnings()` twice will
  not wipe out the original reference indefinitely. If it was
  already set, subsequent calls should do nothing instead of
  overwriting them again so that recovery is still possible.

* Log all ajax requests logged during the test, not just the
  one currently still pending. This should avoid situations
  where we throw "Pending ajax requests" but no information
  is logged about which requests those might be.

Change-Id: I900ad98c4c8520bdd6ae00a24ac82272f3becfee

diff --git a/tests/qunit/data/testrunner.js b/tests/qunit/data/testrunner.js
index b0118af..55bd276 100644 (file)
--- a/tests/qunit/data/testrunner.js
+++ b/tests/qunit/data/testrunner.js
@@ -131,9 +131,11 @@
                liveMessages = mw.messages;
 
                function suppressWarnings() {
-                       warn = mw.log.warn;
-                       error = mw.log.error;
-                       mw.log.warn = mw.log.error = $.noop;
+                       if ( warn === undefined ) {
+                               warn = mw.log.warn;
+                               error = mw.log.error;
+                               mw.log.warn = mw.log.error = $.noop;
+                       }
                }
 
                function restoreWarnings() {
@@ -215,6 +217,10 @@
                                        // Stop tracking ajax requests
                                        $( document ).off( 'ajaxSend', trackAjax );
 
+                                       // As a convenience feature, automatically restore warnings if they're
+                                       // still suppressed by the end of the test.
+                                       restoreWarnings();
+
                                        // Farewell, mock environment!
                                        mw.config = liveConfig;
                                        mw.messages = liveMessages;
@@ -223,10 +229,6 @@
                                                messages: liveMessages
                                        } );
 
-                                       // As a convenience feature, automatically restore warnings if they're
-                                       // still suppressed by the end of the test.
-                                       restoreWarnings();
-
                                        // Tests should use fake timers or wait for animations to complete
                                        // Check for incomplete animations/requests/etc and throw if there are any.
                                        if ( $.timers && $.timers.length !== 0 ) {
@@ -253,8 +255,11 @@
                                                        mw.log.warn( 'Pending requests does not match jQuery.active count' );
                                                }
                                                // Force requests to stop to give the next test a clean start
-                                               $.each( pending, function ( i, ajax ) {
-                                                       mw.log.warn( 'Pending AJAX request #' + i, ajax.options );
+                                               $.each( ajaxRequests, function ( i, ajax ) {
+                                                       mw.log.warn(
+                                                               'AJAX request #' + i + ' (state: ' + ajax.xhr.state() + ')',
+                                                               ajax.options
+                                                       );
                                                        ajax.xhr.abort();
                                                } );
                                                ajaxRequests = [];