diff --git a/src/material/datepicker/testing/date-range-input-harness.ts b/src/material/datepicker/testing/date-range-input-harness.ts
index 037f6f9a5987..4504717007fe 100644
--- a/src/material/datepicker/testing/date-range-input-harness.ts
+++ b/src/material/datepicker/testing/date-range-input-harness.ts
@@ -48,7 +48,7 @@ export class MatEndDateHarness extends MatDatepickerInputHarnessBase {
 export class MatDateRangeInputHarness extends DatepickerTriggerHarnessBase {
   static hostSelector = '.mat-date-range-input';
 
-  private readonly floatingLabelSelector = '.mdc-floating-label';
+  private readonly _floatingLabelSelector = '.mdc-floating-label';
 
   /**
    * Gets a `HarnessPredicate` that can be used to search for a `MatDateRangeInputHarness`
@@ -94,22 +94,22 @@ export class MatDateRangeInputHarness extends DatepickerTriggerHarnessBase {
   /** Gets the floating label text for the range input, if it exists. */
   async getLabel(): Promise<string | null> {
     // Copied from MatFormFieldControlHarnessBase since this class cannot extend two classes
-    const documentRootLocator = await this.documentRootLocatorFactory();
+    const documentRootLocator = this.documentRootLocatorFactory();
     const labelId = await (await this.host()).getAttribute('aria-labelledby');
     const hostId = await (await this.host()).getAttribute('id');
 
     if (labelId) {
       // First option, try to fetch the label using the `aria-labelledby`
       // attribute.
-      const labelEl = await await documentRootLocator.locatorForOptional(
-        `${this.floatingLabelSelector}[id="${labelId}"]`,
+      const labelEl = await documentRootLocator.locatorForOptional(
+        `${this._floatingLabelSelector}[id="${labelId}"]`,
       )();
       return labelEl ? labelEl.text() : null;
     } else if (hostId) {
       // Fallback option, try to match the id of the input with the `for`
       // attribute of the label.
-      const labelEl = await await documentRootLocator.locatorForOptional(
-        `${this.floatingLabelSelector}[for="${hostId}"]`,
+      const labelEl = await documentRootLocator.locatorForOptional(
+        `${this._floatingLabelSelector}[for="${hostId}"]`,
       )();
       return labelEl ? labelEl.text() : null;
     }
diff --git a/src/material/form-field/testing/control/form-field-control-harness.ts b/src/material/form-field/testing/control/form-field-control-harness.ts
index 05edc1b89fe8..39f2874e090b 100644
--- a/src/material/form-field/testing/control/form-field-control-harness.ts
+++ b/src/material/form-field/testing/control/form-field-control-harness.ts
@@ -18,26 +18,26 @@ export abstract class MatFormFieldControlHarness extends ComponentHarness {}
  * Shared behavior for `MatFormFieldControlHarness` implementations
  */
 export abstract class MatFormFieldControlHarnessBase extends MatFormFieldControlHarness {
-  private readonly floatingLabelSelector = '.mdc-floating-label';
+  private readonly _floatingLabelSelector = '.mdc-floating-label';
 
   /** Gets the text content of the floating label, if it exists. */
-  public async getLabel(): Promise<string | null> {
-    const documentRootLocator = await this.documentRootLocatorFactory();
+  async getLabel(): Promise<string | null> {
+    const documentRootLocator = this.documentRootLocatorFactory();
     const labelId = await (await this.host()).getAttribute('aria-labelledby');
     const hostId = await (await this.host()).getAttribute('id');
 
     if (labelId) {
       // First option, try to fetch the label using the `aria-labelledby`
       // attribute.
-      const labelEl = await await documentRootLocator.locatorForOptional(
-        `${this.floatingLabelSelector}[id="${labelId}"]`,
+      const labelEl = await documentRootLocator.locatorForOptional(
+        `${this._floatingLabelSelector}[id="${labelId}"]`,
       )();
       return labelEl ? labelEl.text() : null;
     } else if (hostId) {
       // Fallback option, try to match the id of the input with the `for`
       // attribute of the label.
-      const labelEl = await await documentRootLocator.locatorForOptional(
-        `${this.floatingLabelSelector}[for="${hostId}"]`,
+      const labelEl = await documentRootLocator.locatorForOptional(
+        `${this._floatingLabelSelector}[for="${hostId}"]`,
       )();
       return labelEl ? labelEl.text() : null;
     }
diff --git a/src/material/select/testing/select-harness-filters.ts b/src/material/select/testing/select-harness-filters.ts
index 34e219a456d0..cacbeb900d27 100644
--- a/src/material/select/testing/select-harness-filters.ts
+++ b/src/material/select/testing/select-harness-filters.ts
@@ -6,7 +6,6 @@
  * found in the LICENSE file at https://angular.dev/license
  */
 
-import {BaseHarnessFilters} from '@angular/cdk/testing';
 import {MatFormFieldControlHarnessFilters} from '@angular/material/form-field/testing/control';
 
 /** A set of criteria that can be used to filter a list of `MatSelectHarness` instances. */