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RegularExpressionGeneratorTest.cs
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RegularExpressionGeneratorTest.cs
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using System.Text.RegularExpressions;
using AutoFixture;
using AutoFixture.Kernel;
using AutoFixtureUnitTest.Kernel;
using Xunit;
namespace AutoFixtureUnitTest
{
public class RegularExpressionGeneratorTest
{
[Fact]
public void SutIsSpecimenBuilder()
{
// Arrange
// Act
var sut = new RegularExpressionGenerator();
// Assert
Assert.IsAssignableFrom<ISpecimenBuilder>(sut);
}
[Fact]
public void CreateWithNullRequestReturnsCorrectResult()
{
// Arrange
var sut = new RegularExpressionGenerator();
var dummyContext = new DelegatingSpecimenContext();
// Act
var result = sut.Create(null, dummyContext);
// Assert
Assert.Equal(new NoSpecimen(), result);
}
[Fact]
public void CreateWithAnonymousRequestReturnsCorrectResult()
{
// Arrange
var sut = new RegularExpressionGenerator();
var request = new object();
var dummyContext = new DelegatingSpecimenContext();
// Act
var result = sut.Create(request, dummyContext);
// Assert
Assert.Equal(new NoSpecimen(), result);
}
[Theory]
[InlineData("[ab]{4,6}")]
[InlineData("[ab]{4,6}c")]
[InlineData("(a|b)*ab")]
[InlineData("[A-Za-z0-9]")]
[InlineData("[A-Za-z0-9_]")]
[InlineData("[A-Za-z]")]
[InlineData("[ \t]")]
[InlineData(@"[(?<=\W)(?=\w)|(?<=\w)(?=\W)]")]
[InlineData("[\x00-\x1F\x7F]")]
[InlineData("[0-9]")]
[InlineData("[^0-9]")]
[InlineData("[\x21-\x7E]")]
[InlineData("[a-z]")]
[InlineData("[\x20-\x7E]")]
[InlineData("[ \t\r\n\v\f]")]
[InlineData("[^ \t\r\n\v\f]")]
[InlineData("[A-Z]")]
[InlineData("[A-Fa-f0-9]")]
[InlineData("in[du]")]
[InlineData("x[0-9A-Z]")]
[InlineData("[^A-M]in")]
[InlineData("W*in")]
[InlineData("[xX][0-9a-z]")]
[InlineData(@"\(\(\(ab\)*c\)*d\)\(ef\)*\(gh\)\{2\}\(ij\)*\(kl\)*\(mn\)*\(op\)*\(qr\)*")]
[InlineData(@"^[a-zA-Z0-9\-\.]+\.(com|org|net|mil|edu|COM|ORG|NET|MIL|EDU)$")]
[InlineData(@"((mailto\:|(news|(ht|f)tp(s?))\://){1}\S+)")]
[InlineData(@"^http\://[a-zA-Z0-9\-\.]+\.[a-zA-Z]{2,3}(/\S*)?$")]
[InlineData(@"(http|ftp|https):\/\/[\w\-_]+(\.[\w\-_]+)+([\w\-\.,@?^=%&:/~\+#]*[\w\-\@?^=%&/~\+#])?")]
[InlineData(@"^(http|https|ftp)\://([a-zA-Z0-9\.\-]+(\:[a-zA-Z0-9\.&%\$\-]+)*@)?((25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9])\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[0-9])|([a-zA-Z0-9\-]+\.)*[a-zA-Z0-9\-]+\.[a-zA-Z]{2,4})(\:[0-9]+)?(/[^/][a-zA-Z0-9\.\,\?\'\\/\+&%\$#\=~_\-@]*)*$")]
[InlineData(@"^([1-zA-Z0-1@.\s]{1,255})$")]
[InlineData("[A-Z][0-9A-Z]{10}")]
[InlineData("[A-Z][A-Za-z0-9]{10}")]
[InlineData("[A-Z][a-zA-Z0-9]{10}")]
[InlineData("[A-Za-z0-9]{11}")]
[InlineData("[A-Za-z]{11}")]
[InlineData(@"^[a-zA-Z''-'\s]{1,40}$")]
[InlineData(@"^(?:(?:\+?1\s*(?:[.-]\s*)?)?(?:\(\s*([2-9]1[02-9]|[2-9][02-8]1|[2-9][02-8][02-9])\s*\)|([2-9]1[02-9]|[2-9][02-8]1|[2-9][02-8][02-9]))\s*(?:[.-]\s*)?)?([2-9]1[02-9]|[2-9][02-9]1|[2-9][02-9]{2})\s*(?:[.-]\s*)?([0-9]{4})(?:\s*(?:#|x\.?|ext\.?|extension)\s*(\d+))?$")]
[InlineData(@"^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,4})$")]
[InlineData(@"\d{8}")]
[InlineData(@"\d{5}(-\d{4})?")]
[InlineData(@"\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}")]
[InlineData(@"^(?:[a-z0-9])+$")]
[InlineData(@"^(?i:[a-z0-9])+$")]
[InlineData(@"^(?s:[a-z0-9])+$")]
[InlineData(@"^(?m:[a-z0-9])+$")]
[InlineData(@"^(?n:[a-z0-9])+$")]
[InlineData(@"^(?x:[a-z0-9])+$")]
public void CreateWithRegularExpressionRequestReturnsCorrectResult(string pattern)
{
// Arrange
var sut = new RegularExpressionGenerator();
var request = new RegularExpressionRequest(pattern);
var dummyContext = new DelegatingSpecimenContext();
// Act
var result = sut.Create(request, dummyContext);
// Assert
Assert.True(Regex.IsMatch(result.ToString(), pattern), string.Format("result: {0}", result));
}
[Theory]
[InlineData(@"^[A-Z]{27}$")]
public void CreateMultipleWithRegularExpressionRequestReturnsDifferentResults(string pattern)
{
// This test exposes an issue with Xeger/Random.
// Xeger(pattern) internally creates an instance of Random with the default seed.
// This means that the RegularExpressionGenerator might create identical strings
// if called multiple times within a short time.
// Arrange
var sut = new RegularExpressionGenerator();
var request = new RegularExpressionRequest(pattern);
var dummyContext = new DelegatingSpecimenContext();
// Repeat a few times - because the issue seen comes from Random class using tickcount as seed.
for (int i = 0; i < 10; i++)
{
var result1 = sut.Create(request, dummyContext);
var result2 = sut.Create(request, dummyContext);
// Assert
Assert.NotEqual(result1, result2);
}
}
[Theory]
[InlineData("[")]
[InlineData(@"(?\[Test\]|\[Foo\]|\[Bar\])?(?:-)?(?\[[()a-zA-Z0-9_\s]+\])?(?:-)?(?\[[a-zA-Z0-9_\s]+\])?(?:-)?(?\[[a-zA-Z0-9_\s]+\])?(?:-)?(?\[[a-zA-Z0-9_\s]+\])?")]
public void CreateWithNotSupportedRegularExpressionRequestReturnsCorrectResult(string pattern)
{
// Arrange
var sut = new RegularExpressionGenerator();
var request = new RegularExpressionRequest(pattern);
var dummyContext = new DelegatingSpecimenContext();
// Act
var result = sut.Create(request, dummyContext);
// Assert
Assert.Equal(new NoSpecimen(), result);
}
}
}