wip select tests

Author: jelbourn

src/lib/select/select.spec.ts

@@ -1715,20 +1715,22 @@ describe('MatSelect', () => {
             `Expected trigger label to align along x-axis, accounting for the padding in rtl.`);
       }));
 
-      fit('should not adjust if all options are within a group, except the selected one',
-        fakeAsync(() => {
+      it('should not adjust if all options are within a group, except the selected one',
+        async(() => {
           groupFixture.componentInstance.control.setValue('mime-11');
           groupFixture.detectChanges();
 
           trigger.click();
           groupFixture.detectChanges();
 
-          const selected = document.querySelector('.cdk-overlay-pane mat-option.mat-selected')!;
-          const selectedOptionLeft = selected.getBoundingClientRect().left;
-          const triggerLeft = trigger.getBoundingClientRect().left;
+          fixture.whenStable().then(() => {
+            const selected = document.querySelector('.cdk-overlay-pane mat-option.mat-selected')!;
+            const selectedOptionLeft = selected.getBoundingClientRect().left;
+            const triggerLeft = trigger.getBoundingClientRect().left;
 
-          // 16px is the default option padding
-          expect(Math.floor(selectedOptionLeft)).toEqual(Math.floor(triggerLeft - 16));
+            // 16px is the default option padding
+            expect(Math.floor(selectedOptionLeft)).toEqual(Math.floor(triggerLeft - 16));
+          });
         }));
 
       it('should align the first option to the trigger, if nothing is selected', async(() => {

src/lib/select/select.ts

@@ -640,8 +640,10 @@ export class MatSelect extends _MatSelectMixinBase implements AfterContentInit,
    * Callback that is invoked when the overlay panel has been attached.
    */
   _onAttached(): void {
-    this._calculateOverlayOffsetX();
-    this._setScrollTop();
+    first.call(this.overlayDir.positionChange).subscribe(() => {
+      this._calculateOverlayOffsetX();
+      this._setScrollTop();
+    });
   }
 
   /** Returns the theme to be used on the panel. */