TF-2871 Handle click notification to open detailed email on iOS

ios/TwakeMailTests/DateConversionTests.swift

@@ -5,25 +5,39 @@ import XCTest
 class DateConversionTests: XCTestCase {
     
     func testConvertValidISO8601StringToDate() {
+        // Arrange
         let validDateString = "2024-05-20T22:54:57.958"
         
+        // Act
         let date = validDateString.convertISO8601StringToDate()
+        
+        // Assert
         XCTAssertNotNil(date, "Date should not be nil")
         
+        // Arrange
         let calendar = Calendar.current
         let expectedComponents = DateComponents(year: 2024, month: 5, day: 20, hour: 22, minute: 54, second: 57, nanosecond: 958000000)
+        
+        // Act
         let expectedDate = calendar.date(from: expectedComponents)
+        
+        // Assert
         XCTAssertEqual(date, expectedDate, "Converted date does not match expected date")
     }
         
     func testInvalidISO8601String() {
+        // Arrange
         let invalidDateString = "Invalid Date String"
         
+        // Act
         let date = invalidDateString.convertISO8601StringToDate()
+        
+        // Assert
         XCTAssertNil(date, "The conversion should return nil for an invalid date string.")
     }
     
     func testConvertValidDateToISO8601String() {
+        // Arrange
         let validDate = Calendar.current.date(
             from: DateComponents(
                 year: 2024,
@@ -35,11 +49,38 @@ class DateConversionTests: XCTestCase {
                 nanosecond: 958000000
             )
         )
-        
-        
         let expectedDateString = "2024-05-20T22:54:57.958"
+        
+        // Act
         let validDateString = validDate!.convertDateToISO8601String()
         
+        // Assert
         XCTAssertEqual(validDateString, expectedDateString, "Converted date string does not match expected date string")
     }
+    
+    func testAddingSeconds() {
+        // Arrange
+        let initialDate = Date()
+        let secondsToAdd = 60
+        let expectedDate = initialDate.addingTimeInterval(TimeInterval(secondsToAdd))
+        
+        // Act
+        let resultDate = initialDate.adding(seconds: secondsToAdd)
+        
+        // Assert
+        XCTAssertEqual(resultDate, expectedDate, "The date after adding seconds should be correct.")
+    }
+    
+    func testAddingNegativeSeconds() {
+        // Arrange
+        let initialDate = Date()
+        let secondsToSubtract = -60
+        let expectedDate = initialDate.addingTimeInterval(TimeInterval(secondsToSubtract))
+        
+        // Act
+        let resultDate = initialDate.adding(seconds: secondsToSubtract)
+        
+        // Assert
+        XCTAssertEqual(resultDate, expectedDate, "The date after subtracting seconds should be correct.")
+    }
 }