From bfcea8f1ac70fde309b9f93ca636094272f66176 Mon Sep 17 00:00:00 2001
From: crisbeto <crisbeto@abv.bg>
Date: Thu, 13 Aug 2020 22:28:55 +0200
Subject: [PATCH] test(datepicker/testing): fix test failure

Fixes a test failure that is due to a previous fix getting in around the same time as the datepicker harnesses. The problem is that the fix moved the default range selection strategy from the calendar to the range picker which in turn broke the harness unit tests, because they test a standalone calendar.

These changes fix the issue by providing a strategy manually for the tests.
---
 .../testing/calendar-harness-shared.spec.ts         | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/material/datepicker/testing/calendar-harness-shared.spec.ts b/src/material/datepicker/testing/calendar-harness-shared.spec.ts
index 7ba4728a51e2..19fa4a28fb5e 100644
--- a/src/material/datepicker/testing/calendar-harness-shared.spec.ts
+++ b/src/material/datepicker/testing/calendar-harness-shared.spec.ts
@@ -2,7 +2,12 @@ import {HarnessLoader} from '@angular/cdk/testing';
 import {TestbedHarnessEnvironment} from '@angular/cdk/testing/testbed';
 import {Component} from '@angular/core';
 import {ComponentFixture, TestBed} from '@angular/core/testing';
-import {MatDatepickerModule, DateRange} from '@angular/material/datepicker';
+import {
+  MatDatepickerModule,
+  DateRange,
+  MAT_DATE_RANGE_SELECTION_STRATEGY,
+  DefaultMatCalendarRangeStrategy,
+} from '@angular/material/datepicker';
 import {MatNativeDateModule} from '@angular/material/core';
 import {MatCalendarHarness, CalendarView} from './calendar-harness';
 
@@ -20,6 +25,12 @@ export function runCalendarHarnessTests(
     await TestBed.configureTestingModule({
       imports: [MatNativeDateModule, datepickerModule],
       declarations: [CalendarHarnessTest],
+      providers: [{
+        // Usually it's the date range picker that provides the default range selection strategy,
+        // but since we're testing the calendar on its own, we have to provide it manually.
+        provide: MAT_DATE_RANGE_SELECTION_STRATEGY,
+        useClass: DefaultMatCalendarRangeStrategy
+      }]
     }).compileComponents();
 
     fixture = TestBed.createComponent(CalendarHarnessTest);