File: Tests.Aggregates.cs

package info (click to toggle)
mono 4.6.2.7+dfsg-1
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 778,148 kB
  • ctags: 914,052
  • sloc: cs: 5,779,509; xml: 2,773,713; ansic: 432,645; sh: 14,749; makefile: 12,361; perl: 2,488; python: 1,434; cpp: 849; asm: 531; sql: 95; sed: 16; php: 1
file content (125 lines) | stat: -rw-r--r-- 4,330 bytes parent folder | download | duplicates (2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
using System;
using System.Text;
using System.Collections.Generic;
using System.Linq;
#if NUNIT
using NUnit.Framework;
using TestClassAttribute = NUnit.Framework.TestFixtureAttribute;
using TestMethodAttribute = NUnit.Framework.TestAttribute;
using TestInitializeAttribute = NUnit.Framework.SetUpAttribute;
#else
using Microsoft.VisualStudio.TestTools.UnitTesting;
#endif

namespace Tests
{
    public partial class Tests
    {
        [TestMethod]
        public void IsEmtpy_Arguments()
        {
            AssertThrows<ArgumentNullException>(() => EnumerableEx.IsEmpty<int>(null));
        }

        [TestMethod]
        public void IsEmpty_Empty()
        {
            Assert.IsTrue(Enumerable.Empty<int>().IsEmpty());
        }

        [TestMethod]
        public void IsEmpty_NonEmpty()
        {
            Assert.IsFalse(new[] { 1 }.IsEmpty());
        }

        [TestMethod]
        public void Min_Arguments()
        {
            AssertThrows<ArgumentNullException>(() => EnumerableEx.Min(null, Comparer<int>.Default));
            AssertThrows<ArgumentNullException>(() => EnumerableEx.Min(new[] { 1 }, null));
        }

        [TestMethod]
        public void Min()
        {
            Assert.AreEqual(3, new[] { 5, 3, 7 }.Min(new Mod3Comparer()));
        }

        class Mod3Comparer : IComparer<int>
        {
            public int Compare(int x, int y)
            {
                return Comparer<int>.Default.Compare(x % 3, y % 3);
            }
        }

        [TestMethod]
        public void MinBy_Arguments()
        {
            AssertThrows<ArgumentNullException>(() => EnumerableEx.MinBy(null, (int x) => x));
            AssertThrows<ArgumentNullException>(() => EnumerableEx.MinBy(new[] { 1 }, default(Func<int, int>)));
            AssertThrows<ArgumentNullException>(() => EnumerableEx.MinBy(null, (int x) => x, Comparer<int>.Default));
            AssertThrows<ArgumentNullException>(() => EnumerableEx.MinBy(new[] { 1 }, default(Func<int, int>), Comparer<int>.Default));
            AssertThrows<ArgumentNullException>(() => EnumerableEx.MinBy(new[] { 1 }, (int x) => x, null));
        }

        [TestMethod]
        public void MinBy()
        {
            var res = new[] { 2, 5, 0, 7, 4, 3, 6, 2, 1 }.MinBy(x => x % 3);
            Assert.IsTrue(res.SequenceEqual(new[] { 0, 3, 6 }));
        }

        [TestMethod]
        public void MinBy_Empty()
        {
            AssertThrows<InvalidOperationException>(() => Enumerable.Empty<int>().MinBy(x => x));
        }

        [TestMethod]
        public void Max_Arguments()
        {
            AssertThrows<ArgumentNullException>(() => EnumerableEx.Max(null, Comparer<int>.Default));
            AssertThrows<ArgumentNullException>(() => EnumerableEx.Max(new[] { 1 }, null));
        }

        [TestMethod]
        public void Max()
        {
            Assert.AreEqual(5, new[] { 2, 5, 3, 7 }.Max(new Mod7Comparer()));
        }

        class Mod7Comparer : IComparer<int>
        {
            public int Compare(int x, int y)
            {
                return Comparer<int>.Default.Compare(x % 7, y % 7);
            }
        }

        [TestMethod]
        public void MaxBy_Arguments()
        {
            AssertThrows<ArgumentNullException>(() => EnumerableEx.MaxBy(null, (int x) => x));
            AssertThrows<ArgumentNullException>(() => EnumerableEx.MaxBy(new[] { 1 }, default(Func<int, int>)));
            AssertThrows<ArgumentNullException>(() => EnumerableEx.MaxBy(null, (int x) => x, Comparer<int>.Default));
            AssertThrows<ArgumentNullException>(() => EnumerableEx.MaxBy(new[] { 1 }, default(Func<int, int>), Comparer<int>.Default));
            AssertThrows<ArgumentNullException>(() => EnumerableEx.MaxBy(new[] { 1 }, (int x) => x, null));
        }

        [TestMethod]
        public void MaxBy()
        {
            var res = new[] { 2, 5, 0, 7, 4, 3, 6, 2, 1 }.MaxBy(x => x % 3);
            Assert.IsTrue(res.SequenceEqual(new[] { 2, 5, 2 }));
        }

        [TestMethod]
        public void MaxBy_Empty()
        {
            AssertThrows<InvalidOperationException>(() => Enumerable.Empty<int>().MaxBy(x => x));
        }
    }
}