From ac154ff752eec3689e3c9a1ff415af7a1c0ac682 Mon Sep 17 00:00:00 2001
From: bicijinlian <bicijinlian@163.com>
Date: Mon, 9 Sep 2019 14:51:07 +0800
Subject: [PATCH] =?UTF-8?q?=E6=95=B4=E7=90=86?=
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---
LinqStudy.Test/LinqToObject/CreateTest.cs | 43 +++++++++------
LinqStudy.Test/LinqToObject/GroupTest.cs | 5 +-
LinqStudy.Test/LinqToObject/ProjectiveTest.cs | 52 +++++++------------
.../LinqToObject/SequenceEqualTest.cs | 3 +-
LinqStudy.Test/LinqToObject/SetsTest.cs | 4 +-
LinqStudy.Test/LinqToObject/WhereTest.cs | 5 +-
LinqStudy.Test/Other/IndexersTest.cs | 1 -
7 files changed, 58 insertions(+), 55 deletions(-)
diff --git a/LinqStudy.Test/LinqToObject/CreateTest.cs b/LinqStudy.Test/LinqToObject/CreateTest.cs
index cdcc4d1..f8ea03b 100644
--- a/LinqStudy.Test/LinqToObject/CreateTest.cs
+++ b/LinqStudy.Test/LinqToObject/CreateTest.cs
@@ -9,10 +9,11 @@ using FluentAssertions;
namespace LinqStudy.Test.LinqToObject
{
/// <summary>
- /// 生成操作符
+ /// 生成操作符
/// </summary>
public class CreateTest
{
+ #region Empty
/// <summary>
/// Empty 返回指定类型的空集，没有任何元素的集合。
/// Enumerable的静态方法，常用来做初始种子集合。
@@ -20,10 +21,10 @@ namespace LinqStudy.Test.LinqToObject
[Fact]
public void Empty_string_Test()
{
- var ini= Enumerable.Empty<string>();
+ var ini = Enumerable.Empty<string>();
- Assert.IsType<string[]>(ini);
- Assert.Empty(ini);
+ Assert.IsType<string[]>(ini);
+ Assert.Empty(ini);
}
/// <summary>
@@ -37,6 +38,9 @@ namespace LinqStudy.Test.LinqToObject
Assert.IsType<Person[]>(ini);
Assert.Empty(ini);
}
+ #endregion
+
+ #region DefaultIfEmpty
/// <summary>
/// DefaultIfEmpty
@@ -45,11 +49,12 @@ namespace LinqStudy.Test.LinqToObject
[Fact]
public void DefaultIfEmpty_Test()
{
- var defaultValue= Enumerable.DefaultIfEmpty(Enumerable.Empty<int>());
+ var defaultValue = Enumerable.DefaultIfEmpty(Enumerable.Empty<int>());
Assert.Single(defaultValue);
Assert.Equal(default(int), defaultValue.First());
}
+
/// <summary>
/// 数据源为Null时，抛出异常。
/// </summary>
@@ -61,6 +66,9 @@ namespace LinqStudy.Test.LinqToObject
Assert.Single(defaultValue);
Assert.Equal(default(Person), defaultValue.First());
}
+ #endregion
+
+ #region Range
/// <summary>
/// Range：生成指定范围的整数序列
@@ -86,7 +94,8 @@ namespace LinqStudy.Test.LinqToObject
//生成100项值均为"test@163.com"的字符串序列
var values = Enumerable.Repeat("test@163.com", 100);
- Array.ForEach(values.ToArray(), (emai) => {
+ Array.ForEach(values.ToArray(), (emai) =>
+ {
Assert.Equal("test@163.com", emai);
});
}
@@ -98,8 +107,8 @@ namespace LinqStudy.Test.LinqToObject
public void Repeat_TestData_Test()
{
//生成测试数据：生成了有100项的一个序列，这100项均是对同一个对象的引用，而不是100个对象。
-
Random rdm = new Random(DateTime.Now.Ticks.GetHashCode());
+
//虽然生成时，用了随机数，但是因对象只生成了一次，其它均是这个对象的浅拷贝，所以100个对象，完全相同：100个对同一对象的引用。
var persons = Enumerable.Repeat(new Person()
{
@@ -111,23 +120,26 @@ namespace LinqStudy.Test.LinqToObject
Assert.Equal(100, persons.Count);
//所有对象引用相同
- Assert.All(persons, (p) =>
+ Assert.All(persons, (p) =>
{
Assert.Same(persons[0], p);
});
}
+ #endregion
+
+ #region SequenceEqual
+
/// <summary>
/// SequenceEqual: 比较源和目标序列，返回一个bool值，指示所含元素是否相同。
/// </summary>
[Fact]
public void SequenceEqual_Test()
{
- Person p=new Person(){Id=1,Name="王小明",Age=20};
-
- var s1=Enumerable.Repeat(p,100);
+ Person p = new Person() { Id = 1, Name = "王小明", Age = 20 };
- var s2=Enumerable.Repeat(p,100);
+ var s1 = Enumerable.Repeat(p, 100);
+ var s2 = Enumerable.Repeat(p, 100);
Assert.True(s1.SequenceEqual(s2));
}
@@ -135,13 +147,14 @@ namespace LinqStudy.Test.LinqToObject
[Fact]
public void SequenceEqual_No_Test()
{
- Person p=new Person(){Id=1,Name="王小明",Age=20};
+ Person p = new Person() { Id = 1, Name = "王小明", Age = 20 };
- var s1=Enumerable.Repeat(p,100);
+ var s1 = Enumerable.Repeat(p, 100);
- var s2=Enumerable.Repeat(p,200);
+ var s2 = Enumerable.Repeat(p, 200);
Assert.False(s1.SequenceEqual(s2));
}
+ #endregion
}
}
diff --git a/LinqStudy.Test/LinqToObject/GroupTest.cs b/LinqStudy.Test/LinqToObject/GroupTest.cs
index 2da2993..9fd3943 100644
--- a/LinqStudy.Test/LinqToObject/GroupTest.cs
+++ b/LinqStudy.Test/LinqToObject/GroupTest.cs
@@ -39,7 +39,7 @@ namespace LinqStudy.Test.LinqToObject
}
/// <summary>
- /// 延迟执行
+ /// 延迟执行
/// </summary>
[Fact]
public void GroupBy_Delay_Test()
@@ -128,8 +128,9 @@ namespace LinqStudy.Test.LinqToObject
Assert.Equal(expected,actual);
}
+
/// <summary>
- /// 重载4：keySelector elementSelector comparer
+ /// 重载4：keySelector elementSelector comparer
/// </summary>
[Fact]
public void GroupBy_keySelector_elementSelector_comparer_Test()
diff --git a/LinqStudy.Test/LinqToObject/ProjectiveTest.cs b/LinqStudy.Test/LinqToObject/ProjectiveTest.cs
index 8dca176..696c4e6 100644
--- a/LinqStudy.Test/LinqToObject/ProjectiveTest.cs
+++ b/LinqStudy.Test/LinqToObject/ProjectiveTest.cs
@@ -16,6 +16,8 @@ namespace LinqStudy.Test.LinqToObject
/// </summary>
public class ProjectiveTest
{
+ #region Select
+
/// <summary>
/// Select投影：简单投影，一对一
/// </summary>
@@ -26,11 +28,12 @@ namespace LinqStudy.Test.LinqToObject
var persons = PersonManager.GetPersons();
// Act
- var maps = persons.Select(p=>p.Age).ToList();
-
+ var maps = persons.Select(p => p.Age).ToList();
+
// Assert
Assert.IsType<List<int>>(maps);
}
+
/// <summary>
/// 投影为匿名类
/// </summary>
@@ -41,8 +44,8 @@ namespace LinqStudy.Test.LinqToObject
var persons = PersonManager.GetPersons();
// Act
- var maps = persons.Select(p=>new {Id=p.Id, Node=$"姓名{p.Name},年龄{p.Age}."}).ToList();
-
+ var maps = persons.Select(p => new { Id = p.Id, Node = $"姓名{p.Name},年龄{p.Age}." }).ToList();
+
// Assert
Assert.IsNotType<List<Person>>(maps);
}
@@ -55,12 +58,15 @@ namespace LinqStudy.Test.LinqToObject
{
var persons = PersonManager.GetPersons();
- var maps = persons.Select((query,index)=> new KeyValuePair<int, Person>(index,query)).ToList();
+ var maps = persons.Select((query, index) => new KeyValuePair<int, Person>(index, query)).ToList();
var indexs = persons.Select((query, index) => index).ToList();
Assert.IsType<List<KeyValuePair<int, Person>>>(maps);
- Assert.Equal(0,indexs[0]);
+ Assert.Equal(0, indexs[0]);
}
+ #endregion
+
+ #region SelectMany
/// <summary>
/// 将序列的每个元素投影到 IEnumerable<TResult> 并将结果序列合并为一个序列。
@@ -82,7 +88,7 @@ namespace LinqStudy.Test.LinqToObject
new Employee(){Id=5,Name="东升",Emails=new List<string>(){ "ebc@163.com", "ecd@163.com", "ede@163.com" }},
};
- var maps = employees.SelectMany(q=>q.Emails).ToList();
+ var maps = employees.SelectMany(q => q.Emails).ToList();
Assert.IsType<List<string>>(maps);
Assert.Equal(15, maps.Count);
@@ -106,7 +112,7 @@ namespace LinqStudy.Test.LinqToObject
new Employee(){Id=5,Name="东升",Emails=new List<string>(){ "ebc@163.com", "ecd@163.com", "ede@163.com" }},
};
- var maps = employees.SelectMany((q, idx) =>
+ var maps = employees.SelectMany((q, idx) =>
{
q.Emails.Add(idx.ToString());
return q.Emails;
@@ -134,7 +140,7 @@ namespace LinqStudy.Test.LinqToObject
new Employee(){ Id=5,Name="东升",Emails=new List<string>(){ "e1@163.com", "e2@163.com", "e3@163.com" } },
};
- var maps = employees.SelectMany((employee)=> employee.Emails,(person,email)=> new { Name=person.Name,Email=email}).ToList();
+ var maps = employees.SelectMany((employee) => employee.Emails, (person, email) => new { Name = person.Name, Email = email }).ToList();
Assert.Equal(15, maps.Count);
}
@@ -160,12 +166,12 @@ namespace LinqStudy.Test.LinqToObject
var maps = employees.SelectMany
(
- (employee, idx) =>
+ (employee, idx) =>
{
return new List<Employee>() { new Employee() { Id = employee.Id, Name = employee.Name + "_" + idx, Emails = employee.Emails } };
- },
+ },
- (person,email) => new
+ (person, email) => new
{
Name = email.Name,
Email = email.Emails
@@ -175,26 +181,6 @@ namespace LinqStudy.Test.LinqToObject
Assert.Equal(5, maps.Count);
}
-
- [Fact]
- public void Test()
- {
- var cc= DocDemo("");
- }
-
- /// <summary>
- /// Doc示例
- /// </summary>
- /// <param name="aa">参数</param>
- /// <exception cref="ArgumentNullException">
- /// ArgumentNullException
- /// </exception>
- /// <example>DecDemo("dsfsadf")</example>
- /// <seealso cref="SortedDictionary{TKey, TValue}"/>
- /// <returns>参数+“-”</returns>
- private string DocDemo(string aa)
- {
- return aa + "-";
- }
+ #endregion
}
}
diff --git a/LinqStudy.Test/LinqToObject/SequenceEqualTest.cs b/LinqStudy.Test/LinqToObject/SequenceEqualTest.cs
index 79dd73d..9a3b75f 100644
--- a/LinqStudy.Test/LinqToObject/SequenceEqualTest.cs
+++ b/LinqStudy.Test/LinqToObject/SequenceEqualTest.cs
@@ -14,6 +14,7 @@ namespace LinqStudy.Test.LinqToObject
/// </summary>
public class SequenceEqualTest
{
+ #region SequenceEqual
/// <summary>
/// SequenceEqual
/// 序列相等比较：所含项数量相同、内容相同、位置相同、引用类型则引用相同的对象，则两个序列相等。
@@ -60,7 +61,6 @@ namespace LinqStudy.Test.LinqToObject
[Fact]
public void SequenceEqual_ValueType_Test()
{
-
List<int> sequence1 = new List<int>() { 1, 2, 3 };
List<int> sequence2 = new List<int>() { 1, 2, 3 };
@@ -194,5 +194,6 @@ namespace LinqStudy.Test.LinqToObject
Assert.True(sequence1.SequenceEqual(sequence2, new PersonEqualityComparer()));
}
+ #endregion
}
}
diff --git a/LinqStudy.Test/LinqToObject/SetsTest.cs b/LinqStudy.Test/LinqToObject/SetsTest.cs
index 12d8ff8..ced4bd1 100644
--- a/LinqStudy.Test/LinqToObject/SetsTest.cs
+++ b/LinqStudy.Test/LinqToObject/SetsTest.cs
@@ -7,8 +7,8 @@ using Xunit;
namespace LinqStudy.Test.LinqToObject
{
/// <summary>
- /// Sets 集合操作符
- /// 注意：集合操作为 “延迟执行”，数据源为null时均引发异常。
+ /// Sets 集合操作符
+ /// 注意：集合操作为 “延迟执行”，数据源为null时均引发异常。
/// </summary>
public class SetsTest
{
diff --git a/LinqStudy.Test/LinqToObject/WhereTest.cs b/LinqStudy.Test/LinqToObject/WhereTest.cs
index fc54e67..9d5661b 100644
--- a/LinqStudy.Test/LinqToObject/WhereTest.cs
+++ b/LinqStudy.Test/LinqToObject/WhereTest.cs
@@ -13,6 +13,8 @@ namespace LinqStudy.Test.LinqToObject
/// </summary>
public class WhereTest
{
+ #region Where
+
/// <summary>
/// where：过滤查询条件
/// </summary>
@@ -39,9 +41,10 @@ namespace LinqStudy.Test.LinqToObject
{
List<Person> Persons = null;
- Action act = ()=> { Persons.Where(p => p.Name.StartsWith("zhang")); };
+ Action act = () => { Persons.Where(p => p.Name.StartsWith("zhang")); };
Assert.Throws<ArgumentNullException>(act);
}
+ #endregion
}
}
diff --git a/LinqStudy.Test/Other/IndexersTest.cs b/LinqStudy.Test/Other/IndexersTest.cs
index 42e6e0b..6fdf5b4 100644
--- a/LinqStudy.Test/Other/IndexersTest.cs
+++ b/LinqStudy.Test/Other/IndexersTest.cs
@@ -76,6 +76,5 @@ namespace LinqStudy.Test.Other
Employees[idx] = value;
}
}
-
}
}