Inheritance diagram for FlutterUndoManagerPluginTest:

Instance Methods
(void)	- setUp `[implementation]`

(void)	- testSetUndoState `[implementation]`

(void)	- testSetUndoStateDoesInteractWithInputDelegate `[implementation]`

Properties
FakeFlutterUndoManagerDelegate *	undoManagerDelegate

FlutterUndoManagerPlugin *	undoManagerPlugin

TextInputViewTest *	activeTextInputView

NSUndoManager *	undoManager

Detailed Description

Definition at line 61 of file FlutterUndoManagerPluginTest.mm.

Method Documentation

◆ setUp

- (void) setUp

implementation

Definition at line 65 of file FlutterUndoManagerPluginTest.mm.

              {
  [super setUp];
 
  self.undoManager = OCMClassMock([NSUndoManager class]);
  self.activeTextInputView = OCMClassMock([TextInputViewTest class]);
 
  self.undoManagerDelegate =
      [[FakeFlutterUndoManagerDelegate alloc] initWithUndoManager:self.undoManager
                                              activeTextInputView:self.activeTextInputView];
 
  self.undoManagerPlugin =
      [[FlutterUndoManagerPlugin alloc] initWithDelegate:self.undoManagerDelegate];
}

◆ testSetUndoState

- (void) testSetUndoState

implementation

Definition at line 65 of file FlutterUndoManagerPluginTest.mm.

                         {
  __block int registerUndoCount = 0;
  __block void (^undoHandler)(id target);
  OCMStub([self.undoManager registerUndoWithTarget:self.undoManagerPlugin handler:[OCMArg any]])
      .andDo(^(NSInvocation* invocation) {
        registerUndoCount++;
        __weak void (^handler)(id target);
        [invocation retainArguments];
        [invocation getArgument:&handler atIndex:3];
        undoHandler = handler;
      });
  __block int removeAllActionsCount = 0;
  OCMStub([self.undoManager removeAllActionsWithTarget:self.undoManagerPlugin])
      .andDo(^(NSInvocation* invocation) {
        removeAllActionsCount++;
      });
  __block int undoCount = 0;
  OCMStub([self.undoManager undo]).andDo(^(NSInvocation* invocation) {
    undoCount++;
    undoHandler(self.undoManagerPlugin);
  });
 
  // If canUndo and canRedo are false, only removeAllActionsWithTarget is called.
  FlutterMethodCall* setUndoStateCall =
      [FlutterMethodCall methodCallWithMethodName:@"UndoManager.setUndoState"
                                        arguments:@{@"canUndo" : @NO, @"canRedo" : @NO}];
  [self.undoManagerPlugin handleMethodCall:setUndoStateCall
                                    result:^(id _Nullable result){
                                    }];
  XCTAssertEqual(1, removeAllActionsCount);
  XCTAssertEqual(0, registerUndoCount);
 
  // If canUndo is true, an undo will be registered.
  setUndoStateCall =
      [FlutterMethodCall methodCallWithMethodName:@"UndoManager.setUndoState"
                                        arguments:@{@"canUndo" : @YES, @"canRedo" : @NO}];
  [self.undoManagerPlugin handleMethodCall:setUndoStateCall
                                    result:^(id _Nullable result){
                                    }];
  XCTAssertEqual(2, removeAllActionsCount);
  XCTAssertEqual(1, registerUndoCount);
 
  // Invoking the undo handler will invoke the handleUndo delegate method with "undo".
  undoHandler(self.undoManagerPlugin);
  XCTAssertEqual(1UL, self.undoManagerDelegate.undoCount);
  XCTAssertEqual(0UL, self.undoManagerDelegate.redoCount);
  XCTAssertEqual(2, registerUndoCount);
 
  // Invoking the redo handler will invoke the handleUndo delegate method with "redo".
  undoHandler(self.undoManagerPlugin);
  XCTAssertEqual(1UL, self.undoManagerDelegate.undoCount);
  XCTAssertEqual(1UL, self.undoManagerDelegate.redoCount);
  XCTAssertEqual(3, registerUndoCount);
 
  // If canRedo is true, an undo will be registered and undo will be called.
  setUndoStateCall =
      [FlutterMethodCall methodCallWithMethodName:@"UndoManager.setUndoState"
                                        arguments:@{@"canUndo" : @NO, @"canRedo" : @YES}];
  [self.undoManagerPlugin handleMethodCall:setUndoStateCall
                                    result:^(id _Nullable result){
                                    }];
  XCTAssertEqual(3, removeAllActionsCount);
  XCTAssertEqual(5, registerUndoCount);
  XCTAssertEqual(1, undoCount);
 
  // Invoking the redo handler will invoke the handleUndo delegate method with "redo".
  undoHandler(self.undoManagerPlugin);
  XCTAssertEqual(1UL, self.undoManagerDelegate.undoCount);
  XCTAssertEqual(2UL, self.undoManagerDelegate.redoCount);
}

◆ testSetUndoStateDoesInteractWithInputDelegate

- (void) testSetUndoStateDoesInteractWithInputDelegate

implementation

Definition at line 65 of file FlutterUndoManagerPluginTest.mm.

                                                      {
  // Regression test for https://github.com/flutter/flutter/issues/133424
  FlutterMethodCall* setUndoStateCall =
      [FlutterMethodCall methodCallWithMethodName:@"UndoManager.setUndoState"
                                        arguments:@{@"canUndo" : @NO, @"canRedo" : @NO}];
  [self.undoManagerPlugin handleMethodCall:setUndoStateCall
                                    result:^(id _Nullable result){
                                    }];
 
  OCMVerify(never(), [self.activeTextInputView inputDelegate]);
}