From ae171bb226246e8b485f688e6ddf2dd8dc9fa9be Mon Sep 17 00:00:00 2001
From: Sebastian Schmidt <mrschmidt@google.com>
Date: Wed, 11 Oct 2017 04:51:05 +0200
Subject: Adding goOnline/goOffline to the RemoteStore (#347)

---
 .../Tests/Integration/API/FIRDatabaseTests.m       | 79 ++++++++++++++++++++++
 .../Integration/API/FIRListenerRegistrationTests.m | 33 +++++++++
 2 files changed, 112 insertions(+)

(limited to 'Firestore/Example/Tests/Integration/API')

diff --git a/Firestore/Example/Tests/Integration/API/FIRDatabaseTests.m b/Firestore/Example/Tests/Integration/API/FIRDatabaseTests.m
index 6a727ad..d22552a 100644
--- a/Firestore/Example/Tests/Integration/API/FIRDatabaseTests.m
+++ b/Firestore/Example/Tests/Integration/API/FIRDatabaseTests.m
@@ -18,6 +18,8 @@
 
 #import <XCTest/XCTest.h>
 
+#import "Core/FSTFirestoreClient.h"
+#import "FIRFirestore+Internal.h"
 #import "FSTIntegrationTestCase.h"
 
 @interface FIRDatabaseTests : FSTIntegrationTestCase
@@ -766,4 +768,81 @@
   XCTAssertEqualObjects([self.db documentWithPath:@"foo/bar/baz/qux"].documentID, @"qux");
 }
 
+- (void)testCanQueueWritesWhileOffline {
+  XCTestExpectation *writeEpectation = [self expectationWithDescription:@"successfull write"];
+  XCTestExpectation *networkExpectation = [self expectationWithDescription:@"enable network"];
+
+  FIRDocumentReference *doc = [self documentRef];
+  FIRFirestore *firestore = doc.firestore;
+  NSDictionary<NSString *, id> *data = @{@"a" : @"b"};
+
+  [firestore.client disableNetworkWithCompletion:^(NSError *error) {
+    XCTAssertNil(error);
+
+    [doc setData:data
+        completion:^(NSError *error) {
+          XCTAssertNil(error);
+          [writeEpectation fulfill];
+        }];
+
+    [firestore.client enableNetworkWithCompletion:^(NSError *error) {
+      XCTAssertNil(error);
+      [networkExpectation fulfill];
+    }];
+  }];
+
+  [self awaitExpectations];
+
+  XCTestExpectation *getExpectation = [self expectationWithDescription:@"successfull get"];
+  [doc getDocumentWithCompletion:^(FIRDocumentSnapshot *snapshot, NSError *error) {
+    XCTAssertNil(error);
+    XCTAssertEqualObjects(snapshot.data, data);
+    XCTAssertFalse(snapshot.metadata.isFromCache);
+
+    [getExpectation fulfill];
+  }];
+
+  [self awaitExpectations];
+}
+
+- (void)testCantGetDocumentsWhileOffline {
+  FIRDocumentReference *doc = [self documentRef];
+  FIRFirestore *firestore = doc.firestore;
+  NSDictionary<NSString *, id> *data = @{@"a" : @"b"};
+
+  XCTestExpectation *onlineExpectation = [self expectationWithDescription:@"online read"];
+  XCTestExpectation *networkExpectation = [self expectationWithDescription:@"network online"];
+
+  __weak FIRDocumentReference *weakDoc = doc;
+
+  [firestore.client disableNetworkWithCompletion:^(NSError *error) {
+    XCTAssertNil(error);
+    [doc setData:data
+        completion:^(NSError *_Nullable error) {
+          XCTAssertNil(error);
+
+          [weakDoc getDocumentWithCompletion:^(FIRDocumentSnapshot *snapshot, NSError *error) {
+            XCTAssertNil(error);
+
+            // Verify that we are not reading from cache.
+            XCTAssertFalse(snapshot.metadata.isFromCache);
+            [onlineExpectation fulfill];
+          }];
+        }];
+
+    [doc getDocumentWithCompletion:^(FIRDocumentSnapshot *snapshot, NSError *error) {
+      XCTAssertNil(error);
+
+      // Verify that we are reading from cache.
+      XCTAssertTrue(snapshot.metadata.fromCache);
+      XCTAssertEqualObjects(snapshot.data, data);
+      [firestore.client enableNetworkWithCompletion:^(NSError *error) {
+        [networkExpectation fulfill];
+      }];
+    }];
+  }];
+
+  [self awaitExpectations];
+}
+
 @end
diff --git a/Firestore/Example/Tests/Integration/API/FIRListenerRegistrationTests.m b/Firestore/Example/Tests/Integration/API/FIRListenerRegistrationTests.m
index 19771ff..5824314 100644
--- a/Firestore/Example/Tests/Integration/API/FIRListenerRegistrationTests.m
+++ b/Firestore/Example/Tests/Integration/API/FIRListenerRegistrationTests.m
@@ -18,6 +18,8 @@
 
 #import <XCTest/XCTest.h>
 
+#import "Core/FSTFirestoreClient.h"
+#import "FIRFirestore+Internal.h"
 #import "FSTIntegrationTestCase.h"
 
 @interface FIRListenerRegistrationTests : FSTIntegrationTestCase
@@ -126,4 +128,35 @@
   [two remove];
 }
 
+- (void)testWatchSurvivesNetworkDisconnect {
+  XCTestExpectation *testExpectiation =
+      [self expectationWithDescription:@"testWatchSurvivesNetworkDisconnect"];
+
+  FIRCollectionReference *collectionRef = [self collectionRef];
+  FIRDocumentReference *docRef = [collectionRef documentWithAutoID];
+
+  FIRFirestore *firestore = collectionRef.firestore;
+
+  FIRQueryListenOptions *options = [[[FIRQueryListenOptions options]
+      includeDocumentMetadataChanges:YES] includeQueryMetadataChanges:YES];
+
+  [collectionRef addSnapshotListenerWithOptions:options
+                                       listener:^(FIRQuerySnapshot *snapshot, NSError *error) {
+                                         XCTAssertNil(error);
+                                         if (!snapshot.empty && !snapshot.metadata.fromCache) {
+                                           [testExpectiation fulfill];
+                                         }
+                                       }];
+
+  [firestore.client disableNetworkWithCompletion:^(NSError *error) {
+    XCTAssertNil(error);
+    [docRef setData:@{@"foo" : @"bar"}];
+    [firestore.client enableNetworkWithCompletion:^(NSError *error) {
+      XCTAssertNil(error);
+    }];
+  }];
+
+  [self awaitExpectations];
+}
+
 @end
-- 
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