Update progress-spinner-harness.ts

Author: dolav

src/material/progress-spinner/testing/progress-spinner-harness.ts

@@ -42,21 +42,24 @@ export class MatProgressSpinnerHarness extends ComponentHarness {
 
   /** Gets the progress spinner's mode. */
   async getMode(): Promise<ProgressSpinnerMode> {
-    const modeAttr = (await this.host()).getAttribute('data-mat-progress-spinner-mode');
+    const modeAttr =
+      (await this.host()).getAttribute('data-mat-progress-spinner-mode');
     return (await modeAttr) as ProgressSpinnerMode;
   }
 
     /** Gets the progress spinner's diameter. */
   async getDiameter(): Promise<number | null> {
     const host = await this.host();
-    const diameterAttr = await host.getAttribute('data-mat-progress-spinner-diameter');
+    const diameterAttr =
+      await host.getAttribute('data-mat-progress-spinner-diameter');
     return diameterAttr ? coerceNumberProperty(diameterAttr) : null;
   }
 
   /** Gets the progress spinner's strokeWidth. */
   async getStrokeWidth(): Promise<number | null> {
     const host = await this.host();
-    const strokeWidthAttr = await host.getAttribute('data-mat-progress-spinner-strokeWidth');
+    const strokeWidthAttr =
+      await host.getAttribute('data-mat-progress-spinner-strokeWidth');
     return strokeWidthAttr ? coerceNumberProperty(strokeWidthAttr) : null;
   }
 }