flipper/iOS/FlipperKitTests/FlipperClientTests.mm

/*
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

#import <XCTest/XCTest.h>
#if FB_SONARKIT_ENABLED

#import <FlipperKit/FlipperClient+Testing.h>
#import <FlipperKit/FlipperClient.h>
#import <FlipperKit/FlipperConnection.h>
#import <FlipperKit/FlipperPlugin.h>
#import <FlipperKitTestUtils/BlockBasedSonarPlugin.h>
#import <FlipperTestLib/FlipperConnectionManagerMock.h>
#import <FlipperTestLib/FlipperPluginMock.h>
#import <FlipperTestLib/FlipperResponderMock.h>
#import <folly/json.h>
#import <vector>

@interface FlipperClientTests : XCTestCase

@end

@implementation FlipperClientTests
facebook::flipper::FlipperClient* client;
facebook::flipper::test::FlipperConnectionManagerMock* socket;
FlipperClient* objcClient;

- (void)setUp {
  // Put setup code here. This method is called before the invocation of each
  // test method in the class.
  socket = new facebook::flipper::test::FlipperConnectionManagerMock;
  auto state = std::make_shared<FlipperState>();

  client = new facebook::flipper::FlipperClient(
      std::unique_ptr<facebook::flipper::test::FlipperConnectionManagerMock>{
          socket},
      state);
  objcClient = [[FlipperClient alloc] initWithCppClient:client];
}

- (void)tearDown {
  // Put teardown code here. This method is called after the invocation of each
  // test method in the class.
  delete client;
}

- (void)testGetPlugin {
  BlockBasedSonarPlugin* cat =
      [[BlockBasedSonarPlugin alloc] initIdentifier:@"cat"
                                            connect:nil
                                         disconnect:nil];
  BlockBasedSonarPlugin* dog =
      [[BlockBasedSonarPlugin alloc] initIdentifier:@"dog"
                                            connect:nil
                                         disconnect:nil];

  [objcClient addPlugin:cat];
  [objcClient addPlugin:dog];

  NSObject<FlipperPlugin>* retrievedPlugin =
      [objcClient pluginWithIdentifier:@"cat"];
  XCTAssertEqual(retrievedPlugin, cat);
  retrievedPlugin = [objcClient pluginWithIdentifier:@"dog"];
  XCTAssertEqual(retrievedPlugin, dog);
}

- (void)testRemovePlugin {
  BlockBasedSonarPlugin* cat =
      [[BlockBasedSonarPlugin alloc] initIdentifier:@"cat"
                                            connect:nil
                                         disconnect:nil];

  [objcClient addPlugin:cat];
  [objcClient removePlugin:cat];

  folly::dynamic message =
      folly::dynamic::object("id", 1)("method", "getPlugins");

  std::vector<folly::dynamic> successes = std::vector<folly::dynamic>();
  std::vector<folly::dynamic> errors = std::vector<folly::dynamic>();
  std::unique_ptr<facebook::flipper::FlipperResponderMock> responder =
      std::make_unique<facebook::flipper::FlipperResponderMock>(
          &successes, &errors);
  socket->callbacks->onMessageReceived(message, std::move(responder));
  folly::dynamic expected =
      folly::dynamic::object("plugins", folly::dynamic::array());
  XCTAssertEqual(successes.size(), 1);
  XCTAssertEqual(errors.size(), 0);
  XCTAssertEqual(successes[0], expected);
}

- (void)testPluginActivatedInBackgroundMode {
  __block BOOL pluginConnected = NO;
  BlockBasedSonarPlugin* cat =
      [[BlockBasedSonarPlugin alloc] initIdentifier:@"cat"
          connect:^(id<FlipperConnection>) {
            pluginConnected = YES;
          }
          disconnect:^{
            pluginConnected = NO;
          }
          runInBackground:YES];

  [objcClient addPlugin:cat];
  [objcClient start];
  XCTAssertTrue(pluginConnected);
}

- (void)testPluginNotActivatedInNonBackgroundMode {
  __block BOOL pluginConnected = NO;
  BlockBasedSonarPlugin* cat =
      [[BlockBasedSonarPlugin alloc] initIdentifier:@"cat"
          connect:^(id<FlipperConnection>) {
            pluginConnected = YES;
          }
          disconnect:^{
            pluginConnected = NO;
          }
          runInBackground:NO];

  [objcClient addPlugin:cat];
  [objcClient start];
  XCTAssertFalse(pluginConnected);
}

- (void)testConnectAndDisconnectCallbackForNonBackgroundCase {
  __block BOOL pluginConnected = NO;
  BlockBasedSonarPlugin* cat =
      [[BlockBasedSonarPlugin alloc] initIdentifier:@"cat"
          connect:^(id<FlipperConnection>) {
            pluginConnected = YES;
          }
          disconnect:^{
            pluginConnected = NO;
          }
          runInBackground:NO];

  [objcClient addPlugin:cat];
  [objcClient start];

  folly::dynamic messageInit = folly::dynamic::object("method", "init")(
      "params", folly::dynamic::object("plugin", "cat"));
  std::unique_ptr<facebook::flipper::FlipperResponder> responder =
      std::make_unique<facebook::flipper::FlipperResponderMock>();

  socket->callbacks->onMessageReceived(messageInit, std::move(responder));
  XCTAssertTrue(pluginConnected);
  [objcClient stop];
  XCTAssertFalse(pluginConnected);
}

- (void)testConnectAndDisconnectCallbackForBackgroundCase {
  __block BOOL pluginConnected = YES;
  BlockBasedSonarPlugin* cat =
      [[BlockBasedSonarPlugin alloc] initIdentifier:@"cat"
          connect:^(id<FlipperConnection>) {
            pluginConnected = YES;
          }
          disconnect:^{
            pluginConnected = NO;
          }
          runInBackground:YES];

  [objcClient addPlugin:cat];
  [objcClient start];
  XCTAssertTrue(pluginConnected);
  [objcClient stop];
  XCTAssertFalse(pluginConnected);
}

- (void)testCrashSuppressionInDidConnectCallback {
  __block BOOL pluginConnected = NO;
  BlockBasedSonarPlugin* cat = [[BlockBasedSonarPlugin alloc]
       initIdentifier:@"cat"
              connect:^(id<FlipperConnection>) {
                pluginConnected = YES;
                NSArray* array = @[];
                [array objectAtIndex:10]; // This will throw an exception
              }
           disconnect:nil
      runInBackground:YES];

  [objcClient addPlugin:cat];
  // Since background plugin's didconnect is called as soon as flipper client
  // starts
  XCTAssertNoThrow([objcClient start]);
  XCTAssertTrue(pluginConnected); // To be sure that connect block is called
}

- (void)testCrashSuppressionInDisconnectCallback {
  __block BOOL isCalled = NO;
  BlockBasedSonarPlugin* cat = [[BlockBasedSonarPlugin alloc]
       initIdentifier:@"cat"
              connect:nil
           disconnect:^{
             isCalled = YES;
             NSArray* array = @[];
             [array objectAtIndex:10]; // This will throw an exception
           }
      runInBackground:YES];

  [objcClient addPlugin:cat];
  [objcClient start];

  XCTAssertNoThrow(
      [objcClient stop]); // Stopping client will call disconnect of the plugin
  XCTAssertTrue(isCalled); // To be sure that connect block is called
}

- (void)testMethodBlockIsCalledNonBackgroundCase {
  __block BOOL isCalled = NO;

  BlockBasedSonarPlugin* cat = [[BlockBasedSonarPlugin alloc]
      initIdentifier:@"PluginIdentifier"
             connect:^(id<FlipperConnection> connection) {
               [connection
                     receive:@"MethodName"
                   withBlock:^(
                       NSDictionary* dict, id<FlipperResponder> responder) {
                     isCalled = YES;
                   }];
             }
          disconnect:nil];

  [objcClient addPlugin:cat];
  [objcClient start];

  folly::dynamic messageInit = folly::dynamic::object("method", "init")(
      "params", folly::dynamic::object("plugin", "PluginIdentifier"));
  std::unique_ptr<facebook::flipper::FlipperResponder> responder1 =
      std::make_unique<facebook::flipper::FlipperResponderMock>();
  socket->callbacks->onMessageReceived(messageInit, std::move(responder1));
  folly::dynamic message = folly::dynamic::object("id", 1)("method", "execute")(
      "params",
      folly::dynamic::object("api", "PluginIdentifier")(
          "method", "MethodName"));
  std::unique_ptr<facebook::flipper::FlipperResponder> responder2 =
      std::make_unique<facebook::flipper::FlipperResponderMock>();

  socket->callbacks->onMessageReceived(message, std::move(responder2));

  XCTAssertTrue(isCalled);
}

- (void)testMethodBlockIsCalledBackgroundCase {
  __block BOOL isCalled = NO;

  BlockBasedSonarPlugin* cat = [[BlockBasedSonarPlugin alloc]
       initIdentifier:@"PluginIdentifier"
              connect:^(id<FlipperConnection> connection) {
                [connection
                      receive:@"MethodName"
                    withBlock:^(
                        NSDictionary* dict, id<FlipperResponder> responder) {
                      isCalled = YES;
                    }];
              }
           disconnect:nil
      runInBackground:YES];

  [objcClient addPlugin:cat];
  [objcClient start];

  folly::dynamic message = folly::dynamic::object("id", 1)("method", "execute")(
      "params",
      folly::dynamic::object("api", "PluginIdentifier")(
          "method", "MethodName"));
  std::unique_ptr<facebook::flipper::FlipperResponder> responder =
      std::make_unique<facebook::flipper::FlipperResponderMock>();
  socket->callbacks->onMessageReceived(message, std::move(responder));

  XCTAssertTrue(isCalled);
}

- (void)testExceptionSuppressionInMethodBlock {
  __block BOOL isCalled = NO;

  BlockBasedSonarPlugin* cat = [[BlockBasedSonarPlugin alloc]
       initIdentifier:@"PluginIdentifier"
              connect:^(id<FlipperConnection> connection) {
                [connection
                      receive:@"MethodName"
                    withBlock:^(
                        NSDictionary* dict, id<FlipperResponder> responder) {
                      isCalled = YES;
                      NSArray* array = @[];
                      [array objectAtIndex:10]; // This will throw an exception
                    }];
              }
           disconnect:nil
      runInBackground:YES];

  [objcClient addPlugin:cat];
  [objcClient start];

  folly::dynamic message = folly::dynamic::object("id", 1)("method", "execute")(
      "params",
      folly::dynamic::object("api", "PluginIdentifier")(
          "method", "MethodName"));
  std::vector<folly::dynamic> successes = std::vector<folly::dynamic>();
  std::vector<folly::dynamic> errors = std::vector<folly::dynamic>();
  std::unique_ptr<facebook::flipper::FlipperResponderMock> responder =
      std::make_unique<facebook::flipper::FlipperResponderMock>(
          &successes, &errors);

  XCTAssertNoThrow(
      socket->callbacks->onMessageReceived(message, std::move(responder)));
  XCTAssertTrue(isCalled);
  XCTAssertEqual(successes.size(), 0);
  XCTAssertEqual(errors.size(), 1);
}

@end
#endif