AspNetWebStack/test/System.Web.WebPages.Test/Utils/UrlRewriterHelperTest.cs at master · JL-Code/AspNetWebStack · GitHub

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
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.

using System.Collections.Specialized;
using Microsoft.TestCommon;
using Moq;

namespace System.Web.WebPages.Test
{
    public class UrlRewriterHelperTest
    {
        [Fact]
        public void WasRequestRewritten_FalseIfUrlRewriterIsTurnedOff()
        {
            // Arrange
            UrlRewriterHelper helper = new UrlRewriterHelper();
            UrlRewriteMocks request = CreateMockContext(isUrlRewriteOnForServer: false, isUrlRewriteOnForRequest: false);

            // Act
            bool result = helper.WasRequestRewritten(request.Context.Object);

            // Assert
            Assert.False(result);
            request.WorkerRequest.Verify();
            request.WorkerRequest.Verify(wr => wr.GetServerVariable(UrlRewriterHelper.UrlWasRewrittenServerVar), Times.Never());
        }

        [Fact]
        public void WasRequestRewritten_FalseIfUrlRewriterIsTurnedOnButRequestWasNotRewritten()
        {
            // Arrange
            UrlRewriterHelper helper = new UrlRewriterHelper();
            UrlRewriteMocks request = CreateMockContext(isUrlRewriteOnForServer: true, isUrlRewriteOnForRequest: false);

            // Act
            bool result = helper.WasRequestRewritten(request.Context.Object);

            // Assert
            Assert.False(result);
            request.WorkerRequest.Verify();
        }

        [Fact]
        public void WasRequestRewritten_TrueIfUrlRewriterIsTurnedOnAndRequestWasRewritten()
        {
            // Arrange
            UrlRewriterHelper helper = new UrlRewriterHelper();
            UrlRewriteMocks request = CreateMockContext(isUrlRewriteOnForServer: true, isUrlRewriteOnForRequest: true);

            // Act
            bool result = helper.WasRequestRewritten(request.Context.Object);

            // Assert
            Assert.True(result);
            request.WorkerRequest.Verify();
        }

        [Fact]
        public void WasRequestRewritten_ChecksIfUrlRewriterIsTurnedOnOnlyOnce()
        {
            // Arrange
            UrlRewriterHelper helper = new UrlRewriterHelper();
            UrlRewriteMocks request1 = CreateMockContext(isUrlRewriteOnForServer: false, isUrlRewriteOnForRequest: false);
            UrlRewriteMocks request2 = CreateMockContext(isUrlRewriteOnForServer: false, isUrlRewriteOnForRequest: false);

            // Act
            bool result1 = helper.WasRequestRewritten(request1.Context.Object);
            bool result2 = helper.WasRequestRewritten(request2.Context.Object);

            // Assert
            request1.WorkerRequest.Verify(c => c.GetServerVariable(UrlRewriterHelper.UrlRewriterEnabledServerVar), Times.Once());
            request2.WorkerRequest.Verify(c => c.GetServerVariable(UrlRewriterHelper.UrlRewriterEnabledServerVar), Times.Never());
            Assert.False(result1);
            Assert.False(result2);
        }

        [Fact]
        public void WasRequestRewritten_ChecksRequest_OnlyOnce_Positive()
        {
            // Arrange
            UrlRewriterHelper helper = new UrlRewriterHelper();
            UrlRewriteMocks request1 = CreateMockContext(isUrlRewriteOnForServer: true, isUrlRewriteOnForRequest: true);

            // Act
            bool result1 = helper.WasRequestRewritten(request1.Context.Object);
            bool result2 = helper.WasRequestRewritten(request1.Context.Object);

            // Assert
            request1.WorkerRequest.Verify(c => c.GetServerVariable(UrlRewriterHelper.UrlWasRewrittenServerVar), Times.Once());
            Assert.True(result1);
            Assert.True(result2);
        }

        [Fact]
        public void WasRequestRewritten_ChecksRequest_OnlyOnce_Negative()
        {
            // Arrange
            UrlRewriterHelper helper = new UrlRewriterHelper();
            UrlRewriteMocks request1 = CreateMockContext(isUrlRewriteOnForServer: true, isUrlRewriteOnForRequest: false);

            // Act
            bool result1 = helper.WasRequestRewritten(request1.Context.Object);
            bool result2 = helper.WasRequestRewritten(request1.Context.Object);

            // Assert
            request1.WorkerRequest.Verify(c => c.GetServerVariable(UrlRewriterHelper.UrlWasRewrittenServerVar), Times.Once());
            Assert.False(result1);
            Assert.False(result2);
        }

        private UrlRewriteMocks CreateMockContext(bool isUrlRewriteOnForServer, bool isUrlRewriteOnForRequest)
        {
            Mock<HttpContextBase> mockContext = new Mock<HttpContextBase>();

            Mock<HttpWorkerRequest> mockWorkerRequest = new Mock<HttpWorkerRequest>();
            mockContext.As<IServiceProvider>().Setup(sp => sp.GetService(typeof(HttpWorkerRequest))).Returns(mockWorkerRequest.Object);

            if (isUrlRewriteOnForServer)
            {
                mockWorkerRequest.Setup(wr => wr.GetServerVariable(UrlRewriterHelper.UrlRewriterEnabledServerVar)).Returns("On!").Verifiable();
            }
            else
            {
                mockWorkerRequest.Setup(wr => wr.GetServerVariable(UrlRewriterHelper.UrlRewriterEnabledServerVar)).Returns((string)null).Verifiable();
            }

            if (isUrlRewriteOnForRequest)
            {
                mockWorkerRequest.Setup(wr => wr.GetServerVariable(UrlRewriterHelper.UrlWasRewrittenServerVar)).Returns("Yup!").Verifiable();
            }
            else
            {
                // this won't be called if rewrite is off for the server
                mockWorkerRequest.Setup(wr => wr.GetServerVariable(UrlRewriterHelper.UrlWasRewrittenServerVar)).Returns((string)null);
            }

            NameValueCollection serverVars = new NameValueCollection();
            mockContext.Setup(c => c.Request.ServerVariables).Returns(serverVars);
            mockContext.Setup(c => c.Request.ApplicationPath).Returns("/myapp");

            mockContext.Setup(c => c.Items).Returns(new HybridDictionary());

            return new UrlRewriteMocks()
            {
                Context = mockContext,
                WorkerRequest = mockWorkerRequest,
            };
        }

        private class UrlRewriteMocks
        {
            public Mock<HttpContextBase> Context { get; set; }
            public Mock<HttpWorkerRequest> WorkerRequest { get; set; }
        }
    }
}