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Complete prototype with unit testing.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,15 @@ | ||
| using System; | ||
|
|
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| namespace Billing | ||
| { | ||
| public abstract class BasicCustomer : ICloneable | ||
| { | ||
| public string FirstName {get;set;} | ||
| public string LastName{get;set;} | ||
| public Address HomeAddress{get;set;} | ||
| public Address BillingAddress{get;set;} | ||
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| public abstract object Clone(); | ||
| public abstract Customer DeepClone(); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,13 +1,36 @@ | ||
| using System; | ||
|
|
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| namespace Billing | ||
| { | ||
| public abstract class Customer : ICloneable | ||
| public class Customer : BasicCustomer | ||
| { | ||
| public string FirstName {get;set;} | ||
| public string LastName{get;set;} | ||
| public Address HomeAddress{get;set;} | ||
| public Address BillingAddress{get;set;} | ||
| public override object Clone() | ||
| { | ||
| return this.MemberwiseClone() as BasicCustomer; | ||
| } | ||
| public override Customer DeepClone() | ||
| { | ||
| var customer = this.MemberwiseClone() as Customer; | ||
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| customer.BillingAddress = new Address | ||
| { | ||
| StreetAddress = this.BillingAddress.StreetAddress, | ||
| City = this.BillingAddress.City, | ||
| State = this.BillingAddress.State, | ||
| Country = this.BillingAddress.Country, | ||
| PostCode = this.BillingAddress.PostCode | ||
| }; | ||
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| customer.HomeAddress = new Address | ||
| { | ||
| StreetAddress = this.HomeAddress.StreetAddress, | ||
| City = this.HomeAddress.City, | ||
| State = this.HomeAddress.State, | ||
| Country = this.HomeAddress.Country, | ||
| PostCode = this.HomeAddress.PostCode | ||
| }; | ||
|
|
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| public abstract object Clone(); | ||
| public abstract Customer DeepClone(); | ||
| return customer; | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,71 @@ | ||
| using NUnit.Framework; | ||
| using FluentAssertions; | ||
| using Moq; | ||
|
|
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| namespace Billing.Tests | ||
| { | ||
| public class Tests | ||
| { | ||
| private BasicCustomer _basicCustomer; | ||
| [SetUp] | ||
| public void Setup() | ||
| { | ||
| _basicCustomer = new Customer(); | ||
| _basicCustomer.FirstName = "John"; | ||
| _basicCustomer.LastName = "Smith"; | ||
| _basicCustomer.HomeAddress = new Address | ||
| { | ||
| StreetAddress = "1 Kent Street", | ||
| City = "Sydney", | ||
| State = "New South Wales", | ||
| Country = "Australia", | ||
| PostCode = "2000" | ||
| }; | ||
| _basicCustomer.BillingAddress = new Address | ||
| { | ||
| StreetAddress = _basicCustomer.HomeAddress.StreetAddress, | ||
| City = _basicCustomer.HomeAddress.City, | ||
| State = _basicCustomer.HomeAddress.State, | ||
| Country = _basicCustomer.HomeAddress.Country, | ||
| PostCode = _basicCustomer.HomeAddress.PostCode | ||
| }; | ||
| } | ||
|
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| [Test] | ||
| public void NewCustomer_ShallowCloneFromCustomerWithSameAddress_AddressObjectsAreShared() | ||
| { | ||
| // Arrange | ||
| var customer = (Customer)_basicCustomer.Clone(); | ||
|
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| // Act | ||
| var newStreetAddress = "26 York Street"; | ||
| var relatedCustomer = (Customer)customer.Clone(); | ||
| relatedCustomer.FirstName = "Jane"; | ||
| relatedCustomer.HomeAddress.StreetAddress = newStreetAddress; | ||
|
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| // Assert | ||
| customer.HomeAddress.Should().Be(relatedCustomer.HomeAddress); | ||
|
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| } | ||
| [Test] | ||
| public void NewCustomer_DeepCloneFromCustomerWithDifferentAddressSameFirstName_AddressObjectsAreDifferent() | ||
| { | ||
| // Arrange | ||
| var customer = (Customer)_basicCustomer.Clone(); | ||
|
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| // Act | ||
| var diffCustomer = customer.DeepClone(); | ||
| diffCustomer.FirstName = "Peter"; | ||
| diffCustomer.LastName = "Wick"; | ||
| diffCustomer.HomeAddress.StreetAddress = "57 Hassall Ridge"; | ||
| diffCustomer.HomeAddress.City = "Lexington"; | ||
| diffCustomer.HomeAddress.State = "Kentucky"; | ||
| diffCustomer.HomeAddress.Country = "United States Of America"; | ||
| diffCustomer.HomeAddress.PostCode = "40511"; | ||
|
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| // Assert | ||
| customer.HomeAddress.Should().NotBeEquivalentTo(diffCustomer.HomeAddress); | ||
| customer.FirstName.Should().BeEquivalentTo("John"); | ||
| } | ||
| } | ||
| } |
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