How to use ThrowingDataClass class of Xunit1.Extensions package

Best Xunit code snippet using Xunit1.Extensions.ThrowingDataClass

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TheoryAcceptanceTests.cs

Source: TheoryAcceptanceTests.cs Github

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1using System;
2using System.Collections.Generic;
3using System.Linq;
4using System.Reflection;
5using TestUtility;
6using Xunit;
7using Xunit.Extensions;
8using Xunit.Sdk;
9
10namespace Xunit1.Extensions
11{
12    public class TheoryAcceptanceTests : AcceptanceTest
13    {
14        [Fact]
15        public void IncorrectParameterCount()
16        {
17            MethodResult[] results = RunClass(typeof(IncorrectParameterCountClass)).ToArray();
18
19            Assert.Equal(2, results.Length);
20            PassedResult passedResult = results.OfType<PassedResult>().Single();
21            Assert.Equal(@"Xunit1.Extensions.TheoryAcceptanceTests+IncorrectParameterCountClass.PassingTestData(x: 1)", passedResult.DisplayName);
22            FailedResult failedResult = results.OfType<FailedResult>().Single();
23            Assert.Equal(@"Xunit1.Extensions.TheoryAcceptanceTests+IncorrectParameterCountClass.PassingTestData(x: 2, ???: 3)", failedResult.DisplayName);
24        }
25
26        class IncorrectParameterCountClass
27        {
28            [Theory]
29            [InlineData(1)]
30            [InlineData(2, 3)]
31            public void PassingTestData(int x)
32            {
33            }
34        }
35
36        [Fact]
37        public void NoDataAttributes()
38        {
39            MethodResult result = RunClass(typeof(NoDataAttributesClass)).Single();
40
41            FailedResult failedResult = Assert.IsType<FailedResult>(result);
42            Assert.Equal(@"Xunit1.Extensions.TheoryAcceptanceTests+NoDataAttributesClass.TheoryMethod", failedResult.DisplayName);
43            Assert.Equal("System.InvalidOperationException : No data found for Xunit1.Extensions.TheoryAcceptanceTests+NoDataAttributesClass.TheoryMethod", failedResult.Message);
44        }
45
46        class NoDataAttributesClass
47        {
48            [Theory]
49            public void TheoryMethod(int x) { }
50        }
51
52        [Fact]
53        public void EmptyTheoryData()
54        {
55            MethodResult result = RunClass(typeof(EmptyTheoryDataClass)).Single();
56
57            FailedResult failedResult = Assert.IsType<FailedResult>(result);
58            Assert.Equal(@"Xunit1.Extensions.TheoryAcceptanceTests+EmptyTheoryDataClass.TheoryMethod", failedResult.DisplayName);
59            Assert.Equal("System.InvalidOperationException : No data found for Xunit1.Extensions.TheoryAcceptanceTests+EmptyTheoryDataClass.TheoryMethod", failedResult.Message);
60        }
61
62        class EmptyTheoryDataAttribute : DataAttribute
63        {
64            public override IEnumerable<object[]> GetData(MethodInfo methodUnderTest, Type[] parameterTypes)
65            {
66                return new object[0][];
67            }
68        }
69
70        class EmptyTheoryDataClass
71        {
72            [Theory, EmptyTheoryData]
73            public void TheoryMethod(int x) { }
74        }
75
76        [Fact]
77        public void ThrowingData()
78        {
79            MethodResult result = RunClass(typeof(ThrowingDataClass)).Single();
80
81            FailedResult failedResult = Assert.IsType<FailedResult>(result);
82            Assert.Equal(@"Xunit1.Extensions.TheoryAcceptanceTests+ThrowingDataClass.TheoryWithMisbehavingData", failedResult.DisplayName);
83            Assert.Contains("System.InvalidOperationException : An exception was thrown while getting data for theory Xunit1.Extensions.TheoryAcceptanceTests+ThrowingDataClass.TheoryWithMisbehavingData", failedResult.Message);
84        }
85
86        public class ThrowingDataAttribute : DataAttribute
87        {
88            public override IEnumerable<object[]> GetData(MethodInfo method, Type[] paramTypes)
89            {
90                throw new Exception();
91            }
92        }
93
94        class ThrowingDataClass
95        {
96            [Theory, ThrowingData]
97            public void TheoryWithMisbehavingData(string a) { }
98        }
99    }
100}
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