Add an introspect method for UITableViewCell (#18)

* Adds an introspect method for UITableViewCell
* Added NSTableCellView introspection
Added line to CHANGELOG
Added tests for UIKit and AppKit
* Removed additional spaces

Co-authored-by: SplittyDev <splittydev@gmail.com>

Author: dmonagle

CHANGELOG.md

@@ -3,6 +3,7 @@ Changelog
 
 ## master
 
+- Added `introspectTableViewCell`
 - Add Github Action
 - Added `.introspectTextView()`.
 - Update CircleCI config to use Xcode 12.4.0

Introspect/ViewExtensions.swift

@@ -75,6 +75,11 @@ extension View {
         return introspect(selector: TargetViewSelector.ancestorOrSiblingContaining, customize: customize)
     }
 
+    /// Finds a `UITableViewCell` from a `SwiftUI.List`, or `SwiftUI.List` child. You can attach this directly to the element inside the list.
+    public func introspectTableViewCell(customize: @escaping (UITableViewCell) -> ()) -> some View {
+        return introspect(selector: TargetViewSelector.ancestorOrSiblingContaining, customize: customize)
+    }
+
     /// Finds a `UIScrollView` from a `SwiftUI.ScrollView`, or `SwiftUI.ScrollView` child.
     public func introspectScrollView(customize: @escaping (UIScrollView) -> ()) -> some View {
         if #available(iOS 14.0, tvOS 14.0, macOS 11.0, *) {
@@ -144,7 +149,12 @@ extension View {
     public func introspectTableView(customize: @escaping (NSTableView) -> ()) -> some View {
         return introspect(selector: TargetViewSelector.ancestorOrSiblingContaining, customize: customize)
     }
-    
+
+    /// Finds a `NSTableCellView` from a `SwiftUI.List`, or `SwiftUI.List` child. You can attach this directly to the element inside the list.
+    public func introspectTableViewCell(customize: @escaping (NSTableCellView) -> ()) -> some View {
+        return introspect(selector: TargetViewSelector.ancestorOrSiblingContaining, customize: customize)
+    }
+
     /// Finds a `NSScrollView` from a `SwiftUI.ScrollView`, or `SwiftUI.ScrollView` child.
     public func introspectScrollView(customize: @escaping (NSScrollView) -> ()) -> some View {
         return introspect(selector: TargetViewSelector.ancestorOrSiblingContaining, customize: customize)

IntrospectTests/AppKitTests.swift

@@ -28,18 +28,27 @@ private struct ListTestView: View {
 
     let spy1: () -> Void
     let spy2: () -> Void
-    
+    let spyCell1: () -> Void
+    let spyCell2: () -> Void
+
     var body: some View {
         List {
             Text("Item 1")
             Text("Item 2")
                 .introspectTableView { tableView in
                     self.spy2()
                 }
+                .introspectTableViewCell { cell in
+                    self.spyCell2()
+                }
+            
         }
         .introspectTableView { tableView in
             self.spy1()
         }
+        .introspectTableViewCell { cell in
+            self.spyCell1()
+        }
     }
 }
 
@@ -151,17 +160,21 @@ private struct SegmentedControlTestView: View {
 class AppKitTests: XCTestCase {
 
     func testList() {
-        
         let expectation1 = XCTestExpectation()
         let expectation2 = XCTestExpectation()
+        let cellExpectation1 = XCTestExpectation()
+        let cellExpectation2 = XCTestExpectation()
+        
         let view = ListTestView(
             spy1: { expectation1.fulfill() },
-            spy2: { expectation2.fulfill() }
+            spy2: { expectation2.fulfill() },
+            spyCell1: { cellExpectation1.fulfill() },
+            spyCell2: { cellExpectation2.fulfill() }
         )
         TestUtils.present(view: view)
-        wait(for: [expectation1, expectation2], timeout: TestUtils.Constants.timeout)
+        wait(for: [expectation1, expectation2, cellExpectation1, cellExpectation2], timeout: TestUtils.Constants.timeout)
     }
-    
+
     func testScrollView() {
 
         let expectation1 = XCTestExpectation()

IntrospectTests/UIKitTests.swift

@@ -112,18 +112,27 @@ private struct ListTestView: View {
 
     let spy1: () -> Void
     let spy2: () -> Void
-    
+    let spyCell1: () -> Void
+    let spyCell2: () -> Void
+
     var body: some View {
         List {
             Text("Item 1")
             Text("Item 2")
                 .introspectTableView { tableView in
                     self.spy2()
                 }
+                .introspectTableViewCell { cell in
+                    self.spyCell2()
+                }
+            
         }
         .introspectTableView { tableView in
             self.spy1()
         }
+        .introspectTableViewCell { cell in
+            self.spyCell1()
+        }
     }
 }
 
@@ -294,12 +303,17 @@ class UIKitTests: XCTestCase {
 
         let expectation1 = XCTestExpectation()
         let expectation2 = XCTestExpectation()
+        let cellExpectation1 = XCTestExpectation()
+        let cellExpectation2 = XCTestExpectation()
+        
         let view = ListTestView(
             spy1: { expectation1.fulfill() },
-            spy2: { expectation2.fulfill() }
+            spy2: { expectation2.fulfill() },
+            spyCell1: { cellExpectation1.fulfill() },
+            spyCell2: { cellExpectation2.fulfill() }
         )
         TestUtils.present(view: view)
-        wait(for: [expectation1, expectation2], timeout: TestUtils.Constants.timeout)
+        wait(for: [expectation1, expectation2, cellExpectation1, cellExpectation2], timeout: TestUtils.Constants.timeout)
     }
 
     func testScrollView() {

README.md

@@ -84,6 +84,11 @@ List {
 .introspectTableView { tableView in
     tableView.separatorStyle = .none
 }
+.introspectTableViewCell { cell in
+    let backgroundView = UIView()
+    backgroundView.backgroundColor = .clear
+    cell.selectedBackgroundView = backgroundView
+}
 ```
 
 ### ScrollView