单元测试之NUnit三
NUnit 分三篇文章介绍,入门者可阅读文章,有基础者直接参考官方文档。初次写博客,望大家指点。
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单元测试之NUnit一
单元测试之NUnit二
单元测试之NUnit三
除了Assert断言外,NUnit还提供了其它直接断言的方法,比如string、directory、file等。另外,如有需要还可自行扩展。
String Assert
实现了string 类型的断言,包含以下方法:
public class StringAssertTest
{
[Test]
public void Contains_Test()
{
string expected = "a";//期望值。被包含
string actual = "acb";//真是值。包含
StringAssert.Contains(expected, actual);
expected = "d";
StringAssert.DoesNotContain(expected, actual);
}
[Test]
public void StartsWith_Test()
{
string actual = "dcc";
string expected = "d";
StringAssert.StartsWith(expected, actual);
expected = "c";
StringAssert.DoesNotStartWith(expected, actual);
}
[Test]
public void EndsWith_Test()
{
string actual = "dcc";
string expected = "c";
StringAssert.EndsWith(expected, actual);
expected = "d";
StringAssert.DoesNotEndWith(expected, actual);
}
[Test]
public void EqualIgnoringCase_Test()
{
string actual = "adc";
string expected = "adc";
StringAssert.AreEqualIgnoringCase(expected, actual);
expected = "a";
StringAssert.AreNotEqualIgnoringCase(expected, actual);
}
[Test]
public void Match_Test()
{
string actual = "adc";
string expected = "adc";
StringAssert.IsMatch(expected, actual);
expected = "g";
StringAssert.DoesNotMatch(expected, actual);
}
}
Collection Assert
CollectionAssert 提供为实现了IEnumerable的集合比较提供一系列方法:
[Test]
public void Equal_Test()
{
List<int> expected = new List<int> { 1, 2, 3 };
List<int> actual = new List<int> { 2, 3, 1 };
CollectionAssert.AreNotEqual(expected, actual);//集合元素位置不同,不相等
actual = new List<int> { 1, 2, 3 };
CollectionAssert.AreEqual(expected, actual);
}
[Test]
public void ItemsOfType_Test()
{
List<object> cols = new List<object> { "1", "2", "b" };
CollectionAssert.AllItemsAreInstancesOfType(cols, typeof(string));
}
更多方法如下:
CollectionAssert.AllItemsAreInstancesOfType(IEnumerable collection, Type expectedType);
CollectionAssert.AllItemsAreInstancesOfType(
IEnumerable collection, Type expectedType, string message, params object[] args);
CollectionAssert.AllItemsAreNotNull(IEnumerable collection);
CollectionAssert.AllItemsAreNotNull(
IEnumerable collection, string message, params object[] args);
CollectionAssert.AllItemsAreUnique(IEnumerable collection);
CollectionAssert.AllItemsAreUnique(
IEnumerable collection, string message, params object[] args);
CollectionAssert.AreEqual(IEnumerable expected, IEnumerable actual);
CollectionAssert.AreEqual(
IEnumerable expected, IEnumerable actual, string message, params object[] args);
CollectionAssert.AreEquivalent(IEnumerable expected, IEnumerable actual);
CollectionAssert.AreEquivalent(
IEnumerable expected, IEnumerable actual, string message, params object[] args);
CollectionAssert.AreNotEqual(IEnumerable expected, IEnumerable actual);
CollectionAssert.AreNotEqual(
IEnumerable expected, IEnumerable actual, string message, params object[] args);
CollectionAssert.AreNotEquivalent(IEnumerable expected, IEnumerable actual);
CollectionAssert.AreNotEquivalent(
IEnumerable expected, IEnumerable actual, string message, params object[] args);
CollectionAssert.Contains(IEnumerable expected, object actual);
CollectionAssert.Contains(
IEnumerable expected, object actual, string message, params object[] args);
CollectionAssert.DoesNotContain(IEnumerable expected, object actual);
CollectionAssert.DoesNotContain(
IEnumerable expected, object actual, string message, params object[] args);
CollectionAssert.IsSubsetOf(IEnumerable subset, IEnumerable superset);
CollectionAssert.IsSubsetOf(
IEnumerable subset, IEnumerable superset, string message, params object[] args);
CollectionAssert.IsNotSubsetOf(IEnumerable subset, IEnumerable superset);
CollectionAssert.IsNotSubsetOf(
IEnumerable subset, IEnumerable superset, string message, params object[] args);
CollectionAssert.IsEmpty(IEnumerable collection);
CollectionAssert.IsEmpty(
IEnumerable collection, string message, params object[] args);
CollectionAssert.IsNotEmpty(IEnumerable collection);
CollectionAssert.IsNotEmpty(
IEnumerable collection, string message, params object[] args);
CollectionAssert.IsOrdered(IEnumerable collection);
CollectionAssert.IsOrdered(
IEnumerable collection, string message, params object[] args);
CollectionAssert.IsOrdered(IEnumerable collection, IComparer comparer);
CollectionAssert.IsOrdered(IEnumerable collection,
IComparer comparer, string message, params object[] args);
Directory Assert
文件夹断言:
[Test]
public void Directory_Test()
{
string basePath = AppDomain.CurrentDomain.BaseDirectory;
DirectoryAssert.Exists(basePath + "/Directory"); // 判断文件夹是否存在
}
DirectoryAssert.AreEqual(DirectoryInfo expected, DirectoryInfo actual);
DirectoryAssert.AreEqual(DirectoryInfo expected, DirectoryInfo actual,
string message, params object[] args);
DirectoryAssert.AreNotEqual(DirectoryInfo expected, DirectoryInfo actual);
DirectoryAssert.AreNotEqual(DirectoryInfo expected, DirectoryInfo actual,
string message, params object[] args);
DirectoryAssert.Exists(DirectoryInfo actual);
DirectoryAssert.Exists(DirectoryInfo actual,
string message, params object[] args);
DirectoryAssert.Exists(string actual);
DirectoryAssert.Exists(string actual,
string message, params object[] args);
DirectoryAssert.DoesNotExist(DirectoryInfo actual);
DirectoryAssert.DoesNotExist(DirectoryInfo actual,
string message, params object[] args);
DirectoryAssert.DoesNotExist(string actual);
DirectoryAssert.DoesNotExist(string actual,
string message, params object[] args);
File Assert
文件断言:
[Test]
public void File_Test()
{
// 判断文件是否存在
FileAssert.Exists(AppDomain.CurrentDomain.BaseDirectory + "/Directory/file.txt");
}
FileAssert.AreEqual(Stream expected, Stream actual); //判断两个文件流是否相同
FileAssert.AreEqual(
Stream expected, Stream actual, string message, params object[] args);
FileAssert.AreEqual(FileInfo expected, FileInfo actual); // 判断两个文件是否同一路径的同一文件
FileAssert.AreEqual(
FileInfo expected, FileInfo actual, string message, params object[] args);
FileAssert.AreEqual(string expected, string actual);
FileAssert.AreEqual(
string expected, string actual, string message, params object[] args);
FileAssert.AreNotEqual(Stream expected, Stream actual);
FileAssert.AreNotEqual(
Stream expected, Stream actual, string message, params object[] args);
FileAssert.AreNotEqual(FileInfo expected, FileInfo actual);
FileAssert.AreNotEqual(
FileInfo expected, FileInfo actual, string message, params object[] args);
FileAssert.AreNotEqual(string expected, string actual);
FileAssert.AreNotEqual(
string expected, string actual, string message, params object[] args);
FileAssert.Exists(FileInfo actual); //判断文件是否存在
FileAssert.Exists(
FileInfo actual, string message, params object[] args);
FileAssert.Exists(string actual);
FileAssert.Exists(
string actual, string message, params object[] args);
FileAssert.DoesNotExist(FileInfo actual);
FileAssert.DoesNotExist(
FileInfo actual, string message, params object[] args);
FileAssert.DoesNotExist(string actual);
FileAssert.DoesNotExist(
string actual, string message, params object[] args);
扩展
NUnit本身提供非常全面的功能,一般来说完全满足我们的项目需求。即使不能满足需求,NUnit也是可扩展的,包括:属性、约束条件、断言等的扩展。文档导航