mw.loader: Add tests for mw.loader StringSet fallback

[lhc/web/wiklou.git] / tests / qunit / suites / resources / mediawiki / mediawiki.loader.test.js

diff --git a/tests/qunit/suites/resources/mediawiki/mediawiki.loader.test.js b/tests/qunit/suites/resources/mediawiki/mediawiki.loader.test.js
index 6f9af76..477b04d 100644 (file)
--- a/tests/qunit/suites/resources/mediawiki/mediawiki.loader.test.js
+++ b/tests/qunit/suites/resources/mediawiki/mediawiki.loader.test.js
@@ -5,6 +5,11 @@
                },
                teardown: function () {
                        mw.loader.store.enabled = false;
+                       // Teardown for StringSet shim test
+                       if ( this.nativeSet ) {
+                               window.Set = this.nativeSet;
+                               mw.redefineFallbacksForTest();
+                       }
                }
        } ) );
 
@@ -133,7 +138,8 @@
                } );
        } );
 
-       QUnit.test( '.using() Error: Circular dependency', function ( assert ) {
+       // Covers mw.loader#sortDependencies (with native Set if available)
+       QUnit.test( '.using() Error: Circular dependency [StringSet default]', function ( assert ) {
                var done = assert.async();
 
                mw.loader.register( [
@@ -152,6 +158,36 @@
                .always( done );
        } );
 
+       // @covers mw.loader#sortDependencies (with fallback shim)
+       QUnit.test( '.using() Error: Circular dependency [StringSet shim]', function ( assert ) {
+               var done = assert.async();
+
+               if ( !window.Set ) {
+                       assert.expect( 0 );
+                       done();
+                       return;
+               }
+
+               this.nativeSet = window.Set;
+               window.Set = undefined;
+               mw.redefineFallbacksForTest();
+
+               mw.loader.register( [
+                       [ 'test.shim.circle1', '0', [ 'test.shim.circle2' ] ],
+                       [ 'test.shim.circle2', '0', [ 'test.shim.circle3' ] ],
+                       [ 'test.shim.circle3', '0', [ 'test.shim.circle1' ] ]
+               ] );
+               mw.loader.using( 'test.shim.circle3' ).then(
+                       function done() {
+                               assert.ok( false, 'Unexpected resolution, expected error.' );
+                       },
+                       function fail( e ) {
+                               assert.ok( /Circular/.test( String( e ) ), 'Detect circular dependency' );
+                       }
+               )
+               .always( done );
+       } );
+
        QUnit.test( '.load() - Error: Circular dependency', function ( assert ) {
                mw.loader.register( [
                        [ 'test.circleA', '0', [ 'test.circleB' ] ],