Hi,
I'm working on a project which needs to work as a Phonebook(unique numbers); all assertions outcome needs to be true(correct output).
Can anyone help how to manage this begin? The part which needs to be edited is starting at the Fill In comment line.
Thanks in advance!
I'm working on a project which needs to work as a Phonebook(unique numbers); all assertions outcome needs to be true(correct output).
Can anyone help how to manage this begin? The part which needs to be edited is starting at the Fill In comment line.
VB.NET:
Option Strict On
Option Explicit On
Class Person
Public Property Name As String
End Class
Class PhonebookEntry
Public Property Phone As String
Public Property Person As Person
End Class
Class Phonebook
Private _Entries(1) As PhonebookEntry
Private _Count As Integer
Public ReadOnly Property Count() As Integer
Get
Count = _Count
End Get
End Property
Public ReadOnly Property Capacity() As Integer
Get
Capacity = _Entries.Length
End Get
End Property
' Fill in...
End Class
Module PhonebookTestFixture
Sub Main()
Dim phone1 As String = "012/34.56.78"
Dim person1 As New Person
person1.Name = "John"
Dim phone2 As String = "123/45.67.89"
Dim person2 As New Person
person2.Name = "Jane"
Dim phone3 As String = "234/56.78.90"
Dim person3 As New Person
person3.Name = "Paul"
Dim phone4 As String = "345/67.89.01"
Dim person4 As New Person
person4.Name = "Mia"
'
' Test Scenario : Initial State :
Dim target As New Phonebook
Assert.IsTrue(target.Count = 0, "No entries to start with.")
Assert.IsTrue(target.Capacity = 2, "Initial Capacity is 2.")
Assert.IsTrue(target.IndexOf(phone1) = -1, "IndexOf -1 for unfound phone.")
Assert.IsTrue(target.Contains(phone1) = False, "Does not contains unfound phone.")
Assert.IsTrue(target.Item(0) Is Nothing, "Indexer delivers no Entry.")
Assert.IsTrue(target.Item(phone1) Is Nothing, "Quantifier delivers no Person.")
'
' Test Scenario : Adding with Add Method :
target.Add(phone1, person1) ' Adding a new entry for phone1 with person1.
' 0 : phone1 -> person1
Assert.IsTrue(target.Count = 1, "Contains 1 element after first Add.")
Assert.IsTrue(target.Capacity = 2, "Capacity is unchanged after first Add.")
Assert.IsTrue(target.IndexOf(phone1) = 0, "IndexOf found phone after first Add.") ' Logical equality.
Assert.IsTrue(target.IndexOf(phone2) = -1, "IndexOf -1 for unfound phone after first Add.")
Assert.IsTrue(target.Contains(phone1) = True, "Contains found phone after first Add.") ' Logical equality.
Assert.IsTrue(target.Contains(phone2) = False, "Does not contain phone after first Add.")
Assert.IsTrue(target.Item(0).Person Is person1, "Indexer delivers Entry after first Add.") ' Physical equality.
Assert.IsTrue(target.Item(0).Phone = phone1, "Indexer delivers Entry after first Add.") ' Logical equality.
Assert.IsTrue(target.Item(1) Is Nothing, "Indexer delivers no Entry after first Add.")
Assert.IsTrue(target.Item(phone1) Is person1, "Quantifier delivers Person after first Add.") ' Physical equality.
Assert.IsTrue(target.Item(phone2) Is Nothing, "Quantifier delivers no Person after first Add.")
target.Add(phone2, person2) ' Adding a new entry for phone2 with person2.
' 0 : phone1 -> person1
' 1 : phone2 -> person2
target.Add(phone3, person1) ' Adding a new entry for phone3 with person1.
' 0 : phone1 -> person1
' 1 : phone2 -> person2
' 2 : phone3 -> person1
Assert.IsTrue(target.Count = 3, "Each call to Add increases the Count with 1.")
Assert.IsTrue(target.Capacity = 4, "Capacity doubles when insufficient.")
Assert.IsTrue(target.IndexOf(phone1) = 0, "IndexOf found phone after Add.")
Assert.IsTrue(target.IndexOf(phone2) = 1, "IndexOf found phone after Add.")
Assert.IsTrue(target.IndexOf(phone3) = 2, "IndexOf found phone after Add.")
Assert.IsTrue(target.Contains(phone1) = True, "Contains found phone after Add.")
Assert.IsTrue(target.Contains(phone2) = True, "Contains found phone after Add.")
Assert.IsTrue(target.Contains(phone3) = True, "Contains found phone after Add.")
Assert.IsTrue(target.Item(0).Person Is person1, "Indexer delivers Entry after Add.")
Assert.IsTrue(target.Item(0).Phone = phone1, "Indexer delivers Entry after Add.")
Assert.IsTrue(target.Item(1).Person Is person2, "Indexer delivers Entry after Add.")
Assert.IsTrue(target.Item(1).Phone = phone2, "Indexer delivers Entry after Add.")
Assert.IsTrue(target.Item(2).Person Is person1, "Indexer delivers Entry after Add.")
Assert.IsTrue(target.Item(2).Phone = phone3, "Indexer delivers Entry after Add.")
Assert.IsTrue(target.Item(phone1) Is person1, "Quantifier delivers Person after Add.")
Assert.IsTrue(target.Item(phone2) Is person2, "Quantifier delivers Person after Add.")
Assert.IsTrue(target.Item(phone3) Is person1, "Quantifier delivers Person after Add.")
'
' Test Scenario : Replacing a Complete Entry thru Use of Indexer :
target.Item(1) = New PhonebookEntry ' Replacing complete entry at Index 1.
target.Item(1).Phone = phone4
target.Item(1).Person = person4
' 0 : phone1 -> person1
' 1 : phone4 -> person4
' 2 : phone3 -> person1
Assert.IsTrue(target.Count = 3, "Replacing an entry does not affect Count.")
Assert.IsTrue(target.IndexOf(phone2) = -1, "Entry with phone2 removed after replacing thru indexer.")
Assert.IsTrue(target.IndexOf(phone4) = 1, "Entry for phone4 at index 1 after replacing thru indexer.")
Assert.IsTrue(target.Item(1).Person Is person4, "Indexer delivers Entry after replacing thru indexer.")
Assert.IsTrue(target.Item(1).Phone = phone4, "Indexer delivers Entry after replacing thru indexer.")
Assert.IsTrue(target.Item(phone2) Is Nothing, "Quantifier delivers no Person after replacing thru indexer.")
Assert.IsTrue(target.Item(phone4) Is person4, "Quantifier delivers Person after replacing thru indexer.")
'
' Test Scenario : Replacing a Person on a Certain Phone thru Use of Quantifier :
target.Item(phone3) = person2 ' Changing person1 to person2 for existing phone3.
' 0 : phone1 -> person1
' 1 : phone4 -> person4
' 2 : phone3 -> person2
Assert.IsTrue(target.Count = 3, "Changing the person on a phone does not affect Count.")
Assert.IsTrue(target.IndexOf(phone3) = 2, "IndexOf found phone after replacing thru quantifier.")
Assert.IsTrue(target.Item(0).Person Is person1, "Indexer delivers Entry after replacing thru quantifier.")
Assert.IsTrue(target.Item(0).Phone = phone1, "Indexer delivers Entry after replacing thru quantifier.")
Assert.IsTrue(target.Item(2).Person Is person2, "Indexer delivers Entry after replacing thru quantifier.")
Assert.IsTrue(target.Item(2).Phone = phone3, "Indexer delivers Entry after replacing thru quantifier.")
Assert.IsTrue(target.Item(phone1) Is person1, "Quantifier delivers Person after replacing thru quantifier.")
Assert.IsTrue(target.Item(phone3) Is person2, "Quantifier delivers Person after replacing thru quantifier.")
'
' Test Scenario : Adding an Entry thru Use of Quantifier :
target.Item(phone2) = person1 ' Adding a new entry for phone2 with person1.
' 0 : phone1 -> person1
' 1 : phone4 -> person4
' 2 : phone3 -> person2
' 3 : phone2 -> person1
Assert.IsTrue(target.Count = 4, "Adding thru quantifier increases Count with 1.")
Assert.IsTrue(target.Capacity = 4, "Adding thru quantifier could double Capacity.")
Assert.IsTrue(target.IndexOf(phone1) = 0, "IndexOf found phone after adding thru quantifier.")
Assert.IsTrue(target.IndexOf(phone4) = 1, "IndexOf found phone after adding thru quantifier.")
Assert.IsTrue(target.IndexOf(phone3) = 2, "IndexOf found phone after adding thru quantifier.")
Assert.IsTrue(target.IndexOf(phone2) = 3, "IndexOf found phone after adding thru quantifier.")
Assert.IsTrue(target.Item(3).Person Is person1, "Indexer delivers Entry after replacing thru quantifier.")
Assert.IsTrue(target.Item(3).Phone = phone2, "Indexer delivers Entry after adding thru quantifier.")
'
' Test Scenario : Removing an Entry with Certain Phone :
target.Remove(phone1) ' Removing complete entry with phone1.
' 0 : phone4 -> person4
' 1 : phone3 -> person2
' 2 : phone2 -> person1
Assert.IsTrue(target.Count = 3, "Removing thru Remove decreases Count with 1.")
Assert.IsTrue(target.Capacity = 4, "Capacity stays unchanged after Remove.")
Assert.IsTrue(target.IndexOf(phone1) = -1, "IndexOf -1 for unfound phone after Remove.")
Assert.IsTrue(target.IndexOf(phone4) = 0, "IndexOf found phone after Remove.")
Assert.IsTrue(target.IndexOf(phone3) = 1, "IndexOf found phone after Remove.")
Assert.IsTrue(target.IndexOf(phone2) = 2, "IndexOf found phone after Remove.")
Assert.IsTrue(target.Contains(phone1) = False, "Does not contain phone after Remove.")
'
' Test Scenario : Removing an Entry at a Specific Index :
target.RemoveAt(0) ' Remove entry at Index 0.
target.RemoveAt(1) ' Remove entry at Index 1.
' 0 : phone3 -> person2
Assert.IsTrue(target.Count = 1, "Removing thru RemoveAt decreases Count with 1.")
Assert.IsTrue(target.Capacity = 4, "Capacity stays unchanged after RemoveAt.")
Assert.IsTrue(target.IndexOf(phone1) = -1, "IndexOf -1 for unfound phone after RemoveAt.")
Assert.IsTrue(target.IndexOf(phone4) = -1, "IndexOf -1 for unfound phone after RemoveAt.")
Assert.IsTrue(target.IndexOf(phone2) = -1, "IndexOf -1 for unfound phone after RemoveAt.")
Assert.IsTrue(target.IndexOf(phone3) = 0, "IndexOf found phone after RemoveAt.")
'
' Test Scenario : Removing all Entries :
target.Add(phone1, person1)
' 0 : phone3 -> person2
' 1 : phone1 -> person1
target.Clear() ' Removing all entries.
' ..empty..
Assert.IsTrue(target.Count = 0, "Zero items after Clear.")
Assert.IsTrue(target.Capacity = 2, "Initial Capacity (2) reset after Clear.")
Assert.IsTrue(target.IndexOf(phone1) = -1, "IndexOf -1 for unfound phone after Clear.")
'
Console.WriteLine("Test Score : " & Assert.Score / 73 * 30 & " / 30")
Console.WriteLine("Deze score kan nog verminderd worden door bijvoorbeeld : ")
Console.WriteLine("- minder ideale implementatie (omslachtige algoritmes, teveel dataholder, ...)")
Console.WriteLine("- minder ideale definitie (bijvoorbeeld vergeten van type specifiers)")
Console.WriteLine("- ongewenste abstractie (bijvoorbeeld settable maken van readonly gegeven)")
'
Console.ReadLine()
End Sub
End Module
Module Assert
Public Score As Integer
Public Sub IsTrue(ByVal condition As Boolean, ByVal message As String)
If condition Then
Console.Write("Assertion Correct : ")
Score += 1
Else
Console.Write("Assertion Failed : ")
End If
Console.WriteLine(message)
End Sub
End ModuleThanks in advance!
