Updates documentation for closure support

Author: Sean Henry

README.md

@@ -56,7 +56,7 @@ Undo is supported for Xcode plugins but you're safer to use source control in th
 | Captures invoked property values.|✅|✅|
 | Stubs values for your mocks to return.|✅|✅|
 | Stubs a default value for return values where possible.|✅|✅|
-| Automatically calls closure parameters with stubbed values.||✅|
+| Automatically calls closure parameters with stubbed values.|✅|✅|
 | Supports mocks conforming to one or many protocols.||✅|
 | Handles overloaded method declarations.|✅|✅|
 | Regenerate your mock in one action.|✅|✅|
@@ -160,6 +160,15 @@ func testMyMethodReturnsTrueWhenSaveWasSuccessful() {
     XCTAssertTrue(result)
 }
 ```
+Stub the `progress` closure and it is called with the stubbed value:
+
+```
+func testStubProgressClosure() {
+    mockDataStore.stubbedSaveProgressResult = (0.5, ())
+    object.writeSomeData()
+}
+```
+Closures without arguments are called automatically.
 
 ## Disable or remove the plugin
 

TestProject/DataStore.swift

@@ -1,3 +1,3 @@
 protocol DataStore {
-    func save(_ data: Data, to file: URL) -> Bool
+    func save(_ data: Data, to file: URL, progress: (TimeInterval) -> ()) -> Bool
 }

TestProject/MockDataStore.swift

@@ -5,12 +5,16 @@ class MockDataStore: DataStore {
     var invokedSaveCount = 0
     var invokedSaveParameters: (data: Data, file: URL)?
     var invokedSaveParametersList = [(data: Data, file: URL)]()
+    var stubbedSaveProgressResult: (TimeInterval, Void)?
     var stubbedSaveResult: Bool! = false
-    func save(_ data: Data, to file: URL) -> Bool {
+    func save(_ data: Data, to file: URL, progress: (TimeInterval) -> ()) -> Bool {
         invokedSave = true
         invokedSaveCount += 1
         invokedSaveParameters = (data, file)
         invokedSaveParametersList.append((data, file))
+        if let result = stubbedSaveProgressResult {
+            progress(result.0)
+        }
         return stubbedSaveResult
     }
 }
@@ -71,4 +75,9 @@ class ExampleTest: XCTestCase {
         let result = object.writeSomeData()
         XCTAssertTrue(result)
     }
+
+    func testStubProgressClosure() {
+        mockDataStore.stubbedSaveProgressResult = (0.5, ())
+        object.writeSomeData()
+    }
 }