Add test to check reset of text attributes when deleting all text.

Author: SergioEstevao

AztecTests/TextKit/TextViewTests.swift

@@ -2078,6 +2078,7 @@ class TextViewTests: XCTestCase {
         XCTAssertEqual(UIPasteboard.general.html(), "<p><strong>bol</strong></p>")
     }
 
+    /// Check if pasting attributed text without color, the color is set to default color
     func testPasteAttributedText() {
         let sourceAttributedText = NSAttributedString(string: "Hello world")
         var pasteItems = [String:Any]()
@@ -2095,4 +2096,14 @@ class TextViewTests: XCTestCase {
         XCTAssertEqual(textView.text, "Hello world")
     }
 
+    /// Check that deleting all text resets the typying attributes to the default attributes
+    func testDeleteAllTextSetTypyingAttributesToDefault() {
+        let textView = TextViewStub(withHTML: "<p style=\"color:0xFF0000\">Hello world</p>")
+        textView.defaultTextColor = UIColor.green
+        textView.selectedRange = textView.attributedText!.rangeOfEntireString
+        textView.deleteBackward()
+        let attributes = textView.typingAttributes
+        XCTAssertEqual(attributes[.foregroundColor] as! UIColor,UIColor.green)
+    }
+
 }