Added introspect for SwiftUI's TextEditor (#52)

* Added introspectTextEditor
* Fix compilation on tvOS and macCatalyst
* Add AppKit support for `introspectTextView`
* Split version-specific test cases up
* Only run TextEditor test if macOS 11 is available
This hack will resolve itself once CircleCI upgrades to macOS 11.
* Revert platform split
* Improve tvOS conditionals
* Fix variable naming

Co-authored-by: SplittyDev <[email protected]>

Author: vukrado

CHANGELOG.md

@@ -3,6 +3,7 @@ Changelog
 
 ## master
 
+- Added `.introspectTextView()`.
 - Update CircleCI config to use Xcode 12.4.0
 
 ## [0.1.2]

Introspect/ViewExtensions.swift

@@ -88,6 +88,11 @@ extension View {
     public func introspectTextField(customize: @escaping (UITextField) -> ()) -> some View {
         return introspect(selector: TargetViewSelector.siblingContaining, customize: customize)
     }
+
+    /// Finds a `UITextView` from a `SwiftUI.TextEditor`
+    public func introspectTextView(customize: @escaping (UITextView) -> ()) -> some View {
+        return introspect(selector: TargetViewSelector.siblingContaining, customize: customize)
+    }
 
     /// Finds a `UISwitch` from a `SwiftUI.Toggle`
     @available(tvOS, unavailable)
@@ -150,6 +155,11 @@ extension View {
         return introspect(selector: TargetViewSelector.siblingContaining, customize: customize)
     }
 
+    /// Finds a `NSTextView` from a `SwiftUI.TextView`
+    public func introspectTextView(customize: @escaping (NSTextView) -> ()) -> some View {
+        return introspect(selector: TargetViewSelector.siblingContaining, customize: customize)
+    }
+    
     /// Finds a `NSSlider` from a `SwiftUI.Slider`
     public func introspectSlider(customize: @escaping (NSSlider) -> ()) -> some View {
         return introspect(selector: TargetViewSelector.siblingContaining, customize: customize)

IntrospectTests/AppKitTests.swift

@@ -75,6 +75,18 @@ private struct TextFieldTestView: View {
     }
 }
 
+@available(macOS 11.0, *)
+private struct TextEditorTestView: View {
+    let spy: () -> Void
+    @State private var textEditorValue = ""
+    var body: some View {
+        TextEditor(text: $textEditorValue)
+        .introspectTextView { textView in
+            self.spy()
+        }
+    }
+}
+
 @available(macOS 10.15.0, *)
 private struct SliderTestView: View {
     let spy: () -> Void
@@ -168,6 +180,18 @@ class AppKitTests: XCTestCase {
         wait(for: [expectation], timeout: 1)
     }
 
+    func testTextEditor() {
+
+        if #available(macOS 11.0, *) {
+            let expectation = XCTestExpectation()
+            let view = TextEditorTestView(spy: {
+                expectation.fulfill()
+            })
+            TestUtils.present(view: view)
+            wait(for: [expectation], timeout: 1)
+        }
+    }
+    
     func testSlider() {
 
         let expectation = XCTestExpectation()

IntrospectTests/UIKitTests.swift

@@ -159,6 +159,19 @@ private struct TextFieldTestView: View {
     }
 }
 
+@available(iOS 14.0, macCatalyst 14.0, macOS 11.0, *)
+@available(tvOS, unavailable, message: "TextEditor is not available in tvOS.")
+private struct TextEditorTestView: View {
+    let spy: () -> Void
+    @State private var textEditorValue = ""
+    var body: some View {
+        TextEditor(text: $textEditorValue)
+        .introspectTextView { textView in
+            self.spy()
+        }
+    }
+}
+
 @available(iOS 13.0, tvOS 13.0, macOS 10.15.0, *)
 @available(tvOS, unavailable)
 private struct ToggleTestView: View {
@@ -367,6 +380,18 @@ class UIKitTests: XCTestCase {
         TestUtils.present(view: view)
         wait(for: [expectation], timeout: 1)
     }
+    
+    @available(iOS 14.0, macCatalyst 14.0, macOS 15.0, *)
+    @available(tvOS, unavailable, message: "TextEditor is not available in tvOS.")
+    func testTextEditor() {
+
+        let expectation = XCTestExpectation()
+        let view = TextEditorTestView(spy: {
+            expectation.fulfill()
+        })
+        TestUtils.present(view: view)
+        wait(for: [expectation], timeout: 1)
+    }
     #endif
 }
 #endif