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diff --git a/Firestore/Example/Tests/API/FIRCollectionReferenceTests.mm b/Firestore/Example/Tests/API/FIRCollectionReferenceTests.mm
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+/*
+ * Copyright 2017 Google
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#import <FirebaseFirestore/FIRCollectionReference.h>
+
+#import <XCTest/XCTest.h>
+
+#import "Firestore/Example/Tests/API/FSTAPIHelpers.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface FIRCollectionReferenceTests : XCTestCase
+@end
+
+@implementation FIRCollectionReferenceTests
+
+- (void)testEquals {
+  FIRCollectionReference *referenceFoo = FSTTestCollectionRef(@"foo");
+  FIRCollectionReference *referenceFooDup = FSTTestCollectionRef(@"foo");
+  FIRCollectionReference *referenceBar = FSTTestCollectionRef(@"bar");
+  XCTAssertEqualObjects(referenceFoo, referenceFooDup);
+  XCTAssertNotEqualObjects(referenceFoo, referenceBar);
+
+  XCTAssertEqual([referenceFoo hash], [referenceFooDup hash]);
+  XCTAssertNotEqual([referenceFoo hash], [referenceBar hash]);
+}
+
+@end
+
+NS_ASSUME_NONNULL_END