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如何编写综合的单元测试方案(7)
发表于：2012-06-27来源：伯乐在线作者：李琼点击数：
标签：单元测试
可以发现Person_FirstName_Set和Person_FirstName_Set_Invalid的差异很小，我们可以进一步试着通用化： [TestMethod] 1 2 3 4 public void Person_FirstName_Set_Valid() { Person_FirstNam
可以发现Person_FirstName_Set和Person_FirstName_Set_Invalid的差异很小，我们可以进一步试着通用化：
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public void Person_FirstName_Set_Valid() { Person_FirstName_Set("Bob", false); } |
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public void Person_FirstName_Set_Empty() { Person_FirstName_Set(String.Empty, true); } |
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public void Person_FirstName_Set_Null() { Person_FirstName_Set(null, true); } public void Person_FirstName_Set(string firstName, bool shouldHaveErrors) { var person = new Person("Adam", "Smith"); var eventAssert = new PropertyChangedEventAssert(person); var errorsChangedAssert = new ErrorsChangedEventAssert(person); var changeAssert = new ChangeAssert(person); Assert.IsFalse(person.IsChanged, "Test setup failed, IsChanged is not false"); Assert.AreEqual("Adam", person.FirstName, "Test setup failed, FirstName is not Adam"); Assert.AreEqual("Smith", person.LastName, "Test setup failed, LastName is not Smith"); person.FirstName = firstName; Assert.AreEqual(firstName, person.FirstName, "FirstName setter failed"); Assert.AreEqual((firstName + " Smith").Trim(), person.FullName, "FullName not updated with FirstName changed"); Assert.AreEqual(true, person.IsChanged, "IsChanged flag was not set when FirstName changed"); eventAssert.Expect("IsChanged"); eventAssert.Expect("FirstName"); eventAssert.Expect("FullName"); if (shouldHaveErrors) { Assert.IsTrue(person.HasErrors, "HasErrors should have remained false"); errorsChangedAssert.ExpectCountEquals(1, "Expected an ErrorsChanged event"); changeAssert.AssertOnlyChangesAre("FirstName", "FullName", "IsChanged", "HasErrors"); } else { errorsChangedAssert.ExpectNothing("Expected no ErrorsChanged events"); changeAssert.AssertOnlyChangesAre("FirstName", "FullName", "IsChanged"); } } |
