How to use OverriddenImplementer class

...21      return value22    }23  }24  25  class OverriddenImplementer: MinimalProtocol {26    var property: String {27      get {28        XCTFail("Property getter should not be called")29        return ""30      }31      set {32        XCTFail("Property setter should not be called")33      }34    }35    func method(value: String) -> String {36      XCTFail("Method should not be called")37      return ""38    }39  }40  41  class SelfReferencingImplementer: MinimalProtocol {42    var property: String = "foobar"43    func method(value: String) -> String {44      return property45    }46  }47  48  class UnrelatedType {}49  50  override func setUpWithError() throws {51    protocolMock = mock(MinimalProtocol.self)52    classMock = mock(MinimalClass.self)53  }54  55  // MARK: - Specific members56  57  func testForwardPropertyGetterToObject() throws {58    given(protocolMock.property).willForward(to: MinimalImplementer())59    XCTAssertEqual(protocolMock.property, "foobar")60    protocolMock.property = "hello"61    XCTAssertEqual(protocolMock.property, "foobar") // Setter is not stubbed62    verify(protocolMock.property).wasCalled(twice)63  }64  func testForwardPropertyGetterToObject_stubbingOperator() throws {65    given(protocolMock.property) ~> forward(to: MinimalImplementer())66    XCTAssertEqual(protocolMock.property, "foobar")67    protocolMock.property = "hello"68    XCTAssertEqual(protocolMock.property, "foobar") // Setter is not stubbed69    verify(protocolMock.property).wasCalled(twice)70  }71  72  func testForwardPropertySetterToObject() throws {73    let implementer = MinimalImplementer()74    given(protocolMock.property = firstArg(any())).willForward(to: implementer)75    protocolMock.property = "hello"76    XCTAssertEqual(implementer.property, "hello")77    verify(protocolMock.property = "hello").wasCalled()78  }79  func testForwardPropertySetterToObject_stubbingOperator() throws {80    let implementer = MinimalImplementer()81    given(protocolMock.property = firstArg(any())) ~> forward(to: implementer)82    protocolMock.property = "hello"83    XCTAssertEqual(implementer.property, "hello")84    verify(protocolMock.property = "hello").wasCalled()85  }86  87  func testForwardMethodToObject() throws {88    given(protocolMock.method(value: any())).willForward(to: MinimalImplementer())89    XCTAssertEqual(protocolMock.method(value: "hello"), "hello")90    verify(protocolMock.method(value: "hello")).wasCalled()91  }92  func testForwardMethodToObject_stubbingOperator() throws {93    given(protocolMock.method(value: any())) ~> forward(to: MinimalImplementer())94    XCTAssertEqual(protocolMock.method(value: "hello"), "hello")95    verify(protocolMock.method(value: "hello")).wasCalled()96  }97  98  func testForwardPropertyToSuperclass() throws {99    given(classMock.property).willForwardToSuper()100    given(classMock.property = firstArg(any())).willForwardToSuper()101    XCTAssertEqual(classMock.property, "super")102    classMock.property = "hello"103    XCTAssertEqual(classMock.property, "hello")104    verify(classMock.property = firstArg(any())).wasCalled()105  }106  func testForwardPropertyToSuperclass_stubbingOperator() throws {107    given(classMock.property) ~> forwardToSuper()108    given(classMock.property = firstArg(any())) ~> forwardToSuper()109    XCTAssertEqual(classMock.property, "super")110    classMock.property = "hello"111    XCTAssertEqual(classMock.property, "hello")112    verify(classMock.property = firstArg(any())).wasCalled()113  }114  115  func testForwardMethodToSuperclass() throws {116    given(classMock.property).willReturn("world")117    given(classMock.method(value: any())).willForwardToSuper()118    XCTAssertEqual(classMock.method(value: "hello"), "hello-world")119    verify(classMock.property).wasCalled()120    verify(classMock.method(value: "hello")).wasCalled()121  }122  func testForwardMethodToSuperclass_stubbingOperator() throws {123    given(classMock.property) ~> "world"124    given(classMock.method(value: any())) ~> forwardToSuper()125    XCTAssertEqual(classMock.method(value: "hello"), "hello-world")126    verify(classMock.property).wasCalled()127    verify(classMock.method(value: "hello")).wasCalled()128  }129  130  // MARK: - Precedence131  132  func testPropertyGetterForwardingPrecedence() throws {133    given(protocolMock.property).willForward(to: OverriddenImplementer())134    given(protocolMock.property).willForward(to: MinimalImplementer())135    XCTAssertEqual(protocolMock.property, "foobar")136  }137  func testPropertyGetterForwardingPrecedence_stubbingOperator() throws {138    given(protocolMock.property) ~> forward(to: OverriddenImplementer())139    given(protocolMock.property) ~> forward(to: MinimalImplementer())140    XCTAssertEqual(protocolMock.property, "foobar")141  }142  143  func testPropertyGetterForwardingPrecedenceWithExplicitStubs() throws {144    given(protocolMock.property).willForward(to: OverriddenImplementer())145    given(protocolMock.property).willReturn("hello")146    XCTAssertEqual(protocolMock.property, "hello")147  }148  func testPropertyGetterForwardingPrecedenceWithExplicitStubs_stubbingOperator() throws {149    given(protocolMock.property) ~> forward(to: OverriddenImplementer())150    given(protocolMock.property) ~> "hello"151    XCTAssertEqual(protocolMock.property, "hello")152  }153  154  func testPropertySetterForwardingPrecedence() throws {155    given(protocolMock.property = firstArg(any())).willForward(to: OverriddenImplementer())156    given(protocolMock.property = firstArg(any())).willForward(to: MinimalImplementer())157    protocolMock.property = "foobar"158  }159  func testPropertySetterForwardingPrecedence_stubbingOperator() throws {160    given(protocolMock.property = firstArg(any())) ~> forward(to: OverriddenImplementer())161    given(protocolMock.property = firstArg(any())) ~> forward(to: MinimalImplementer())162    protocolMock.property = "foobar"163  }164  165  func testPropertySetterForwardingPrecedenceWithExplicitStubs() throws {166    given(protocolMock.property = firstArg(any())).willForward(to: OverriddenImplementer())167    let expectation = XCTestExpectation()168    given(protocolMock.property = "foobar").will { expectation.fulfill() }169    protocolMock.property = "foobar"170    wait(for: [expectation], timeout: 2)171  }172  func testPropertySetterForwardingPrecedenceWithExplicitStubs_stubbingOperator() throws {173    given(protocolMock.property = firstArg(any())) ~> forward(to: OverriddenImplementer())174    let expectation = XCTestExpectation()175    given(protocolMock.property = "foobar") ~> { expectation.fulfill() }176    protocolMock.property = "foobar"177    wait(for: [expectation], timeout: 2)178  }179  180  func testMethodForwardingPrecedence() throws {181    given(protocolMock.method(value: any())).willForward(to: OverriddenImplementer())182    given(protocolMock.method(value: any())).willForward(to: MinimalImplementer())183    XCTAssertEqual(protocolMock.method(value: "hello"), "hello")184  }185  func testMethodForwardingPrecedence_stubbingOperator() throws {186    given(protocolMock.method(value: any())) ~> forward(to: OverriddenImplementer())187    given(protocolMock.method(value: any())) ~> forward(to: MinimalImplementer())188    XCTAssertEqual(protocolMock.method(value: "hello"), "hello")189  }190  191  func testMethodForwardingPrecedenceWithExplicitStubs() throws {192    given(protocolMock.method(value: any())).willForward(to: OverriddenImplementer())193    given(protocolMock.method(value: any())).willReturn("hello")194    XCTAssertEqual(protocolMock.method(value: "hello"), "hello")195  }196  func testMethodForwardingPrecedenceWithExplicitStubs_stubbingOperator() throws {197    given(protocolMock.method(value: any())) ~> forward(to: OverriddenImplementer())198    given(protocolMock.method(value: any())) ~> "hello"199    XCTAssertEqual(protocolMock.method(value: "hello"), "hello")200  }201  202  // MARK: - Global203  204  func testForwardAllPropertiesToObject() throws {205    let implementer = MinimalImplementer()206    protocolMock.forwardCalls(to: implementer)207    XCTAssertEqual(protocolMock.property, "foobar")208    protocolMock.property = "hello"209    XCTAssertEqual(protocolMock.property, "hello")210    XCTAssertEqual(implementer.property, "hello")211    verify(protocolMock.property).wasCalled(twice)212  }213  214  func testForwardAllMethodsToObject() throws {215    protocolMock.forwardCalls(to: MinimalImplementer())216    XCTAssertEqual(protocolMock.method(value: "hello"), "hello")217    verify(protocolMock.method(value: "hello")).wasCalled()218  }219  220  func testForwardAllMethodsPrecedence() throws {221    protocolMock.forwardCalls(to: OverriddenImplementer())222    protocolMock.forwardCalls(to: MinimalImplementer())223    XCTAssertEqual(protocolMock.property, "foobar")224  }225  226  // MARK: - API misuse227  228  func testPropertyGetterForwardingUnrelatedTypeFails() throws {229    shouldFail {230      given(self.protocolMock.property).willForward(to: "foobar")231      _ = self.protocolMock.property232    }233  }234  func testPropertyGetterForwardingUnrelatedTypeFails_stubbingOperator() throws {235    shouldFail {...

1let instance = OverriddenImplementer()2let instance = OverriddenImplementer()3let instance = OverriddenImplementer()4let instance = OverriddenImplementer()5let instance = OverriddenImplementer()6let instance = OverriddenImplementer()7let instance = OverriddenImplementer()8let instance = OverriddenImplementer()9let instance = OverriddenImplementer()10let instance = OverriddenImplementer()11let instance = OverriddenImplementer()12let instance = OverriddenImplementer()