File: ExpressionEqualityComparerTest.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 (129 lines) | stat: -rw-r--r-- 4,244 bytes parent folder | download
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
126
127
128
129
´╗┐using System.Collections.Generic;
using System.Reflection;
using DbLinq.Util;
using System.Linq.Expressions;
using NUnit.Framework;

namespace DbLinqTest
{
    /// <summary>
    ///This is a test class for ExpressionEqualityComparerTest and is intended
    ///to contain all ExpressionEqualityComparerTest Unit Tests
    ///</summary>
    [TestFixture]
    public class ExpressionEqualityComparerTest
    {
        private readonly IEqualityComparer<Expression> equalityComparer = new ExpressionEqualityComparer();

        private void CheckEquality(Expression a, Expression b)
        {
            Assert.AreEqual(equalityComparer.GetHashCode(a), equalityComparer.GetHashCode(b));
            Assert.IsTrue(equalityComparer.Equals(a, b));
        }

        private void CheckInequality(Expression a, Expression b)
        {
            Assert.IsFalse(equalityComparer.Equals(a, b));
        }

        [Test]
        public void Equality1Test()
        {
            CheckEquality(Expression.Add(Expression.Constant(1), Expression.Constant(2)),
                          Expression.Add(Expression.Constant(1), Expression.Constant(2)));
        }

        [Test]
        public void Inequality1Test()
        {
            CheckInequality(Expression.Add(Expression.Constant(1), Expression.Constant(2)),
                            Expression.Add(Expression.Constant(1), Expression.Constant(3)));
        }

        [Test]
        public void Equality2Test()
        {
            CheckEquality(Expression.Condition(Expression.Constant(true), Expression.Constant(1), Expression.Constant(2)),
                          Expression.Condition(Expression.Constant(true), Expression.Constant(1), Expression.Constant(2)));
        }

        [Test]
        public void Equality3Test()
        {
            CheckEquality(Expression.Constant(1), Expression.Constant(1));
        }

        [Test]
        public void Equality4Test()
        {
            CheckEquality(Expression.Constant("1"), Expression.Constant("1"));
        }

        [Test]
        public void Inequality4Test()
        {
            CheckInequality(Expression.Constant(1), Expression.Constant("1"));
        }
        [Test]
        public void Inequality5Test()
        {
            CheckInequality(Expression.Constant(1), null);
        }
        [Test]
        public void Inequality6Test()
        {
            CheckInequality(null, Expression.Constant("1"));
        }
        [Test]
        public void Inequality7Test()
        {
            CheckInequality(Expression.Constant(1), Expression.Negate(Expression.Constant(1)));
        }
        static int F()
        {
            return 1;
        }

        static int G()
        {
            return 1;
        }

        //[TestMethod, Test]
        //public void Equality8Test()
        //{
        //    CheckEquality(
        //        Expression.Invoke(Expression.Call(GetType().GetMethod("F", BindingFlags.NonPublic | BindingFlags.Static))),
        //        Expression.Invoke(Expression.Call(GetType().GetMethod("F", BindingFlags.NonPublic | BindingFlags.Static)))
        //        );
        //}

        //[TestMethod, Test]
        //public void Inequality8Test()
        //{
        //    CheckInequality(
        //        Expression.Invoke(Expression.Call(GetType().GetMethod("F", BindingFlags.NonPublic | BindingFlags.Static))),
        //        Expression.Invoke(Expression.Call(GetType().GetMethod("G", BindingFlags.NonPublic | BindingFlags.Static)))
        //        );
        //}
        [Test]
        public void Equality9Test()
        {
            CheckEquality(
                Expression.Call(GetType().GetMethod("F", BindingFlags.NonPublic | BindingFlags.Static)),
                Expression.Call(GetType().GetMethod("F", BindingFlags.NonPublic | BindingFlags.Static))
                );
        }

        [Test]
        public void Inequality9Test()
        {
            CheckInequality(
                Expression.Call(GetType().GetMethod("F", BindingFlags.NonPublic | BindingFlags.Static)),
                Expression.Call(GetType().GetMethod("G", BindingFlags.NonPublic | BindingFlags.Static))
                );
        }

        // TODO: finish tests, lazy boy
    }
}